Attention Infinium Medical Inc. holds the copyrights to this non-public published manual, and reserves the rights to keep it as a secure document. Refer to this manual when operating, maintaining and repairing Infinium Medical products only. Only Infinium Medical may provide permission for the use of or copies of this document to others. Proprietary materials protected by the copyright law are included in this manual. No section of it may be duplicated, copied, or translated into other languages without prior written approval from Infinium Medical who reserves the copyright. Everything written within this manual is considered to be correct, but it is not a substitute for the exercise of professional judgment. Infinium Medical is not legally responsible for any mistakes printed within and/or any damages caused by incorrect installation and operation of equipment. Infinium Medical does not supply privileges endowed by the patent law to any other parties. Infinium Medical is not legally responsible for the results caused by patent law breaking or any rights of the third party violating. Thank you for choosing this Infinium Medical product. In order to use the product correctly and effectively, please read these operating instructions carefully and completely before using the product for the first time. When using the product, always proceed in accordance with the information provided in these operating instructions on the basis of fully understanding the information in this manual. This product is only for intended use as described in these operating instructions. Only specially trained service professionals are authorized to perform the installation and service of this product, Please contact Infinium Medical at the number listed below for installation, service, maintenance and functional checks on this product. Installation Instructions can also be located within the Product Service Manual, which is available upon request from Infinium Medical Service Group. Please contact Infinium Medical for guidance in the case of questions regarding any applications of this product. Infinium Medical will do its best to offer users effective assistance. Infinium Medical Inc. Address: 12151 62nd St. N #5 Largo, FL 33773 USA Tel: +1-727-531-8434 Fax: +1-727-531-8434 Web site: www.infiniummedical.com E-mail: sales@infiniummedicalmed.com ADS II Anesthesia Workstation Service Manual Version 1.00 May, 2014 I Recommendations Because of the sophisticated nature of ADS II Anesthesia Workstation and its critical importance in the operating room, it is highly recommended that only appropriately trained and experienced professionals, using authentic spare parts, be permitted to service and maintain this machine. Please contact Infinium Medical Service at service@infiniummedical.com. Warranty Infinium Medical Inc. warrants that components within the anesthetic machine will be free from defects in workmanship and materials. Under this extended warranty, Infinium Medical will repair or replace any defective component at no charge for labor and/or materials from the date of purchase or the date of its first use, whichever is sooner. This extended warranty does not cover consumable items such as (but not limited to) batteries and external cables. If don’t comply with the preventive measures described in this manual and lead to machine failure, that is not in the scope of free maintenance. Except the information provided in this manual, the terms, conditions, and limitations of Infinium Medical’s standard warranty will remain in effect. Damage to any product or parts through misuse, neglect, accident, or by affixing any nonstandard accessory attachments or by any customer modification voids this warranty. Infinium Medical retains the right to modify the machine and/or service manual without prior notification. Manufacturer’s Responsibility The effects on safety, reliability, and performance of the equipment are the manufacturer’s responsibility only if: 1. Assembly operations, extensions, readjustments, modification or repairs are carried out by authorized personnel; 2. The electrical installation of the relevant room complies with the appropriate requirements; 3. The equipment is used in accordance with the user manual. Table of Contents ATTENTION………………………..……………………………………………………………………………. 1. II PRODUCT DESCRIPTION ............................................................................................................................ 1 1.1. GENERAL INFORMATION.................................................................................................................................1 1.2. ADS II ANESTHESIA WORKSTATION COMPONENTS ..............................................................................................1 1.2.1. Front View .......................................................................................................................................2 1.2.2. Side view..........................................................................................................................................4 1.2.3. Back View ........................................................................................................................................6 1.2.4. Explosive View .................................................................................................................................7 1.2.5. Breathing system components ........................................................................................................8 1.3. SYMBOLS ....................................................................................................................................................9 1.4. ABBREVIATIONS ..........................................................................................................................................11 2. OPERATION THEORY ............................................................................................................................ 14 2.1. PNEUMATIC SYSTEM ....................................................................................................................................14 2.1.1. Pneumatic Diagram .......................................................................................................................15 2.1.2. Gas tube connection diagram........................................................................................................17 2.1.3. Pipeline gas inlet module assembly ...............................................................................................20 2.1.4. Cylinder gas inlet assembly (Optional) ..........................................................................................22 2.1.5. Electronic Flowmeter .....................................................................................................................23 2.1.6. Vaporizer Manifold ........................................................................................................................26 2.1.7. O2 Flush Valve ................................................................................................................................26 2.1.8. Auxiliary O2 output device .............................................................................................................27 2.1.9. Breathing System...........................................................................................................................28 2.2. 2.1.9.1. Partial structure of breathing system ....................................................................................................... 30 2.1.9.2. Detail Structure of Inspiratory/Expiratory Valve ....................................................................................... 31 2.1.9.3. Bellows assembly...................................................................................................................................... 32 2.1.9.4. Interior structure of bellows ..................................................................................................................... 33 2.1.9.5. Absorber Canister ..................................................................................................................................... 34 ELECTRICAL SYSTEM .....................................................................................................................................35 2.2.1. Electrical components overview.....................................................................................................36 2.2.2. Cable connection diagram .............................................................................................................37 2.2.3. Power Supply Board (PSB) .............................................................................................................41 2.2.4. Main control board (MCB) .............................................................................................................46 2.2.5. Interface Board ..............................................................................................................................53 2.2.6. Communication Board (KBD) .........................................................................................................60 2.2.7. Ambient Pressure Board (APB) ......................................................................................................66 2.2.8. Gas Supply Pressure Signal Board (GSPB) ......................................................................................67 2.2.9. Breathing System Heating Board...................................................................................................68 2.3. 3. ELECTRIC BOX ............................................................................................................................................69 2.3.1. Gas module assembly ....................................................................................................................70 2.3.2. IP valve (PEEP valve) ......................................................................................................................71 2.3.3. Battery Assembly ...........................................................................................................................71 2.4. AC POWER SUPPLY ASSEMBLY ........................................................................................................................72 2.5. SCREEN ASSEMBLY ......................................................................................................................................73 CHECKOUT .............................................................................................................................................. 74 3.1. INSPECT THE SYSTEM....................................................................................................................................74 3.2. ELECTRICAL SAFETY TESTS..............................................................................................................................74 3.3. SYSTEM TEST..............................................................................................................................................75 3.3.1. 3.3.1.1. System Self–test ....................................................................................................................................... 75 3.3.1.2. Automatic Leak Test ................................................................................................................................. 77 3.3.1.3. Manual Test .............................................................................................................................................. 82 3.3.2. 3.4. Set-up test .....................................................................................................................................75 Check .............................................................................................................................................85 3.3.2.1. Leak Test .................................................................................................................................................. 85 3.3.2.2. Compliance Test ....................................................................................................................................... 86 GAS DELIVERY SYSTEM TESTS ........................................................................................................................88 3.4.1. O2 Flush Verification ......................................................................................................................88 3.4.2. O2:N2O Ratio System ......................................................................................................................88 3.5. PNEUMATIC LEAK TESTS ...............................................................................................................................88 3.5.1. N2O Cylinder Leak Test...................................................................................................................88 3.5.2. O2 Cylinder Leak Test .....................................................................................................................88 3.5.3. AIR Cylinder Leak Test....................................................................................................................89 3.5.4. Line Supply Check Valve Test .........................................................................................................89 3.5.5. N2O Line Pressure Leak Test ..........................................................................................................89 3.5.6. O2 Line Pressure Leak Test .............................................................................................................90 3.5.7. AIR Line Pressure Leak Test............................................................................................................90 3.5.8. Cylinder Supply Check Valve Test...................................................................................................90 3.6. BREATHING SYSTEM CHECKS .........................................................................................................................90 3.6.1. Internal Gas Connections Test .......................................................................................................90 3.6.2. 3.7. VAPORIZERS ..............................................................................................................................................91 3.7.1. Vaporizer Interlock Test .................................................................................................................91 3.7.2. Vaporizer Leak Test .......................................................................................................................92 3.8. PERFORMANCE VERIFICATION........................................................................................................................92 3.8.1. STANDBY Mode Ventilation Test ...................................................................................................92 3.8.2. Manual Mode Ventilation Test ........................................................................................................... 92 3.8.3. APNEA Alarm Test .........................................................................................................................93 3.8.4. Alarm MUTE Test ...........................................................................................................................93 3.8.5. VCV Ventilation Mode Test ............................................................................................................93 3.8.5.1. VCV Adult Ventilation Mode Test ............................................................................................................. 93 3.8.5.2. VCV Child Ventilation Mode Test.............................................................................................................. 95 3.8.6. Airway Disconnect Alarm Test .......................................................................................................96 3.8.7. PCV Adult Ventilation Mode Test...................................................................................................96 3.8.8. Pressure Support (PS) Ventilation Mode Test ................................................................................97 3.9. ALARMS AND FAILSAFE FUNCTIONS ...................................................................................................................... 98 3.9.1. Set Up ............................................................................................................................................98 3.9.2. Low FiO2 Alarm Test ......................................................................................................................98 3.9.3. High FiO2 Alarm Test......................................................................................................................99 3.10. 4. Drive Gas Pressure Loss Alarm, N2O Cut off Valve Test..................................................................91 3.9.3.1. Peak Pressure Alarms Test ...................................................................................................................... 100 3.9.3.2. Minute Volume Alarm Test..................................................................................................................... 100 MISCELLANEOUS TESTS ..............................................................................................................................101 3.10.1. Test the Line Voltage Alarm.........................................................................................................101 3.10.2. Wheel Brakes Test .......................................................................................................................101 3.10.3. Work Light Test............................................................................................................................101 3.10.4. Auxiliary Flow Meter....................................................................................................................101 CONFIGURATION MENU ....................................................................................................................... 102 4.1. VENT DEFAULTS .......................................................................................................................................102 4.2. ALARM DEFAULTS .....................................................................................................................................104 4.3. SERVICE MODE ........................................................................................................................................105 4.3.1. Calibration ...................................................................................................................................106 4.3.1.1. Flow Valve .............................................................................................................................................. 107 4.3.1.2. Flow Sensor ............................................................................................................................................ 110 4.3.1.3. Pressure Sensor ...................................................................................................................................... 120 4.3.1.4. PEEP Valve .............................................................................................................................................. 122 4.3.1.5. 5. 6. Cal Data .................................................................................................................................................. 124 4.3.2. SW Update...................................................................................................................................124 4.3.3. Optional Functions.......................................................................................................................127 4.3.4. Optional Language ......................................................................................................................129 4.3.5. Setup ...........................................................................................................................................130 TROUBLESHOOTING ............................................................................................................................. 131 5.1. GENERAL TROUBLESHOOTING......................................................................................................................131 5.2. GENERAL TROUBLESHOOTING GUIDE..................................................................................................................161 MAINTENANCE INFORMATION ............................................................................................................. 172 6.1. MAINTENANCE INTRODUCTION ....................................................................................................................172 6.2. MAINTENANCE GUIDELINES ........................................................................................................................172 6.3. REPAIR BACKUP PARTS LIST..........................................................................................................................173 6.4. SPECIAL TOOLS REQUIRED ..........................................................................................................................181 6.5. MAINTENANCE OF MACHINE .......................................................................................................................183 6.5.1. Bleed gas pressure from the machine .........................................................................................183 6.5.2. Disassembly the rear panels ........................................................................................................183 6.5.3. ADS II Anesthesia Workstation Upper Parts Repairing ................................................................185 6.5.3.1. Power supply panel repairing ................................................................................................................. 186 6.5.3.2. Gas inlet integration module panel repairing ......................................................................................... 187 6.5.3.3. Replacement of filter in gas inlet integration module............................................................................. 188 6.5.3.4. Drive Gas Pressure Regulator Replacement............................................................................................ 190 6.5.3.5. Replacement of E-flow meter assembly ................................................................................................. 191 6.5.4. Maintenance of electrical box .....................................................................................................194 6.5.4.1. Replacement of MCB .............................................................................................................................. 194 6.5.4.2. Replacement of PSB (PSB) ...................................................................................................................... 195 6.5.4.3. Replacement of Gas Module .................................................................................................................. 198 6.5.4.4. Replacement of proportion valve ........................................................................................................... 200 6.5.4.5. Replacement of solenoid valve ............................................................................................................... 201 6.5.4.6. Replacement of safety valve ................................................................................................................... 203 6.5.4.7. Replacement of Ambient Pressure Board (APB) ..................................................................................... 204 6.5.4.8. Replacement of PEEP Valve .................................................................................................................... 205 6.5.4.9. Replacement of battery .......................................................................................................................... 206 6.5.5. Screen Assembly ..........................................................................................................................208 6.5.6. Panel and Encoder assembly .......................................................................................................210 7. 6.5.7. Spotlight ......................................................................................................................................211 6.5.8. Top light.......................................................................................................................................212 6.5.9. Vaporizer Manifold ......................................................................................................................213 HOW TO GET HELP ................................................................................................................................ 214 1. Product Description 1.1. General Information The ADS II Anesthesia Workstation is a continuous flow anesthesia system which offers manual or automatic ventilation, easily adjustable fresh gas delivery, anesthetic agent delivery, ventilation monitoring, convenient ergonomics, and state-of-the-art safety systems. In terms of theory of operation, the ADS II Anesthesia Workstation, driven by pneumatics and controlled by electricity, is a device used to administer to a patient, continuously or intermittently, a general inhalation anesthetic and to maintain a patient’s ventilation. The integrated breathing system delivers the mixture of O2, N2O, AIR and anesthetic agents for patient breathing control, while electrical control system functions as monitoring patient parameters. The ADS II Anesthesia Workstation is intended for use by licensed clinicians, for patients requiring anesthesia within a hospital, and can be used in both adults and pediatric populations weighing above 5kg. 1.2. ADS II Anesthesia Workstation components ADS II Anesthesia Workstation consists of mainframe, anesthetic ventilator, breathing system, flowmeter and battery. The optional parts consist of CO2 module, O2 concentration monitor module, anesthetic agent module, air drive, anesthetic gas scavenging system(AGSS) and vaporizer, Suction device, 1.2.1. Front View Front view No. 1 2 Name User Interface No. 10 Name Knob 2 CO2 Water Trap 11 E-Flow meter 3 Auxiliary O2 Flowmeter 12 Gas Supply Gauge 4 Suction 13 Power Switch 5 Breathing System 14 Auxiliary Work Table 6 Liquid Collecting Bottle 15 Cylinder Gauge 7 Top Shelf 16 O2 Flush 8 External Lamp 17 Drawers Assembly 9 Vaporizer Manifold 18 Canister (With Brake) 10 Keys and navigation knob 1.2.2. Side view Side view 4 No. Name No. Name 1 SUCTION (Optional) 6 Breathing system heater cable socket 2 Auxiliary O2 flowmeter outlet 7 Drive gas outlet 3 Auxiliary high pressure O2 outlet 8 AGSS (Optional) 4 O2 sensor socket 9 Caster (without brake) 5 Common gas outlet(C•G•O) 1.2.3. Back View 6 NO. Name NO. Name 1 Gas inlet 6 Caster 2 Potential equalization connector 7 Power cable 3 YOKE 8 Auxiliary mains outlet socket 4 YOKE handle (cylinder key) 9 Fuse 5 Battery 10 Communication ports 1.2.4. Explosive View No. Name No. Name 1 Gas Input Asm. 3 Gas Box Asm. 2 AC Power Asm. 1.2.5. Breathing system components NO. Name NO. Name 1 Bellows Assembly 8 Inspiratory Port 2 APL (adjust pressure limitation) 9 Test Plug Valve 8 3 Breathing Bag Arm 10 Expiratory Port 4 Expiratory Valve 11 Hook 5 Water drain valve 12 O2 Cell Plug 6 Inspiratory Valve 13 Canister 7 Airway Pressure Gauge 14 Canister Release Handle 1.3. Symbols The following table provides descriptions of symbols that are used on the device and/or within this manual. Symbol Description Symbol CAUTION! Attention, consult accompanying documents./ Refer to user manual. Turn on power switch ON Turn off power switch OFF "ON" for a part of equipment "OFF" for a part of equipment Alternating current (AC) Direct current (DC) Dangerous voltage Earth (ground) Protective earth (ground) Equipotentiality Date of manufacture Manufacturer Catalogue number Serial number Rotation in two directions Rotate to adjust(increase counter-clockwise) Lock Unlock Insp. Flow Exp. Flow O2 flush Breathing bag/manual ventilation Fuse Read the reading of the top floating-point Draining valve operation guide Outer power supply has been connected Recycle This mark means that pneumatic and electric device rubbish is not allowed to be dealt as unclassified city rubbish and should be collected separately. Battery charging condition Alarm mute icon Alarm icon 10 O2+ Interference many occur in the vicinity of equipment marked with this symbol Authorized representative in the European community This device complies with the requirements of Medical Device Directive, 93/42/EEC. 1.4. Abbreviations Abbreviation Definition A AGSS anesthetic gas scavenging system APL Adjustable pressure limiting B BDU Breath Delivery Unit C C Compliance C·G·O Common gas outlet cmH2O Centimeters of Water CO2 Carbon oxide D Des. Desflurane E EEPROM Electrically erasable programmable read only memory Enf. Enflurane ETCO2 End-expiratory CO2 concentration F FiCO2/FiO2 Fraction of Inspired CO2/Oxygen Flow-t flow-time wave Flow flow Freq Frequency FreqMIN Minimum Frequency in PS mode G GUI Graphic user interface H Hal. Halothane I I:E Inspiratory to Expiratory Ratio INSCO2 Inspiratory CO2 concentration Iso. Isoflurane L L/min Liter per minute M MAC Minimum Alveolar Concentration Manual Manual ventilation PMEAN Mean pressure mL Mill Liter MRI Magnetic resonance imaging MV minute volume N N2O nitro oxide O O2 oxygen P Paw Airway pressure Paw-t pressure-time wave Pb Recycling PLAT plat pressure PCV Pressure Control Ventilation PEEP Positive End Expiratory Pressure Pmax Maximum pressure PMEAN Mean pressure PPEAK Peak pressure PS Pressure Support Ventilation PTARGET Target Pressure S 12 SIMV Synchronized Intermittent Mandatory Ventilation Sev. Sevoflurane T TINSP Inspiratory Time TP Inspiratory Pause Time Trigger Triggered flow in SIMV TSLOPE Inspiratory Slope Time V VT Tidal volume VCV Volume Controlled Ventilation W WDT Watch dog timer ΔP Differential Pressure 2. Operation Theory 2.1. Pneumatic system Pneumatic system plays the role of supplying O2, N2O, AIR and anesthetic agent to breathing system, ensuring their pressures are within normal range respectively, so that normal operation of ADS II Anesthesia Workstation and patient’s safety can be guaranteed. 14 2.1.1. Pneumatic Diagram ADS II Anesthesia Workstation Pneumatic Diagram 1 Inlet filter 21. Safety valve 2 Pressure gauge 22 PEEP valve 3 Check valve 23 Ambient pressure 4 N2O Pressure regulator 24 Flow sensor 5 AIR Pressure regulator 25 Airway pressure 6 O2 26 Sensor board 7 Pressure sensor 27 AGSS 8 Pressure regulator 28 Exhaust valve 9 Pressure regulator 29 Bellows check valve 10 Auxiliary breathing O2 30 Bellows 11 Auxiliary supply O2 31 Reversing valve 12 O2, N2O ratio valve 32 APL valve 13 E-flowmeter 33 Breathing bag 14 O2 flush valve 34 Flow sampling 15 Suction 35 Absorber container 16 Check valve 36 O2 sensor 17 Vaporizer mount 37 Insp. Check valve 18 Proportional solenoid valve 38 Exp. Check valve 19 Solenoid valve 39 Breathing system 20 Throttle 16 Pressure regulator 2.1.2. Gas tube connection diagram Tube connection diagram Technical requirement: 1. Connect the tube connectors marked a same number with a correspond tube. 2. Use a proper force when connecting gas tube to connectors. 3. To ensure the tube depth of the inserted tube. 4. Before connecting 15# and 16# tube, insert the spring (13004100) into the tube. No. Part Number Part Name Label 1 230000668 PU tube 8/5.5(green) 1 2 230000668 PU tube 8/5.5(green) 2 3 230000582 PU tube 4/2.5(green) 3 4 230000674 PU tube 6/4(yellow) 4 5 230000581 PU tube 4/2.5(yellow) 5 6 230000673 PU tube 6/4(blue) 6 7 230000580 PU tube 4/2.5(blue) 7 8 230000668 PU tube 8/5.5(green) 8 9 230000668 PU tube 8/5.5(green) 9 10 230000668 PU tube 8/5.5(green) 10 11 230000668 PU tube 8/5.5(green) 11 12 230000673 PU tube 6/4 (blue) 12 13 230000580 PU tube 4/2.5(blue) 13 14 230000674 PU tube 6/4(yellow) 14 15 230000581 PU tube 4/2.5(yellow) 15 16 230000668 PU tube 8/5.5(green) 16 17 230000582 PU tube 4/2.5(green) 17 18 230000582 PU tube 4/2.5(green) 18 19 230000582 PU tube 4/2.5(green) 19 18 20 230000034 Silica gel tube Ø15×2(inside 190mm spring 20 130004100) 21 230000034 Silica gel tube Ø15×2(inside 290mm spring 21 130004100) 22 230000616 Sampling silica tube Ø3×1.75 22 23 230000616 Sampling silica tube Ø3×1.75 23 24 230000616 Sampling silica tube Ø3×1.75 24 25 230000616 Sampling silica tube Ø3×1.75 25 26 230000616 Sampling silica tube Ø3×1.75 26 27 230000582 PU tube 4/2.5(green) 27 28 230000668 PU tube 8/5.5(green) 28 30 230000356 PU tube 8/5.5(transparent) 30 31 230000356 PU tube 8/5.5(transparent) 31 32 230000039 Silica gel tube Ø 1.5×1.5 33 230000712 Double direction, different diameter connector 32 34 230000616 Sampling silica gel tube Ø3X1.75 33 35 230000033 Sampling silica gel tube5/2 34 36 230000616 Sampling silica gel tube Ø3X1.75 35 37 230000616 Sampling silica gel tube Ø3X1.75 36 38 230000033 Sampling silica gel tube5/2 37 39 230000033 Sampling silica gel tube5/2 38 40 230000616 Sampling silica gel tube Ø3X1.75 39 NOTE: Between tube38 and tube39, there is a gas resistance which is shaded by arrow. 2.1.3. Pipeline gas inlet module assembly Pipeline gas supply system consists of gas inlet module and pressure relief valve. Gas inlet module has three inlet ports for O2, Air and N2O. The pressure regulator can decrease the inlet gas pressure to meet the need of patients. 20 No. Part Number Part Name 1 130007976 Gas Input Assembly Fixing Plate 2 122003752 O2 Input Assembly 3 122003753 AIR Input Assembly 4 122003754 N2O Input Assembly 5 122003757 Driver Pressure-Relief Valve Assembly 6 122003756 N2O Pressure-Relief Valve Assembly 7 122003756 AIR Pressure-Relief Valve Assembly 8 122003755 O2 Pressure-Relief Valve Assembly 2.1.4. Cylinder gas inlet assembly (Optional) Cylinder gas inlet assembly consists of YOKE assembly and pressure regulators. The pressure regulator can decrease the high pressure gas from cylinder, and then the release gas goes into pressure relief valve 22 Fig. YOKE Assembly Explosive diagram No. Part Number Part Name 1 240000542 N2O pressure regulator Assembly 2 240000543 Air pressure regulator Assembly 3 240000541 O2 pressure regulator Assembly 4 130011892 YOKE bracket NOTE:N2O pressure regulator Assembly includes the two nuts and the subpart marked with (1). Air and O2 pressure regulator Assembly are the same as N2O pressure regulator Assembly. 2.1.5. Electronic Flowmeter Electronic flowmeter, the mechanical device used to adjust flow control. The flow setting is displayed to the left of the adjustment knob and also below the corresponding flow tube on the display. The Total Flow Tube will display the sum of O2, N2O, and air flow. The flow controller is equipped with a control valve for the ratio of O2 and N2O, so as to ensure that the O2 concentration is no less than 21% when the user is using O2 and N2O at the same time. With no O2 supply pressure, N2O is cut off. The effective range of the flow controller is 0~15L/min and the accuracy is ±10%. When the value is out of the range, the flowmeter readings are for reference only. E-flowmeter Explosive Diagram1 E-flowmeter Explosive Diagram 2 24 Flow Sensor Assembly Explosive Diagram NO. Part Number Part Name 1 122005055 Flowmeter interface assembly 2 122006845 Total flow tube assembly 3 122006841 Flowmeter display board 4 122004100 Oxygen Ratio Control Valve 5 130008323 Oxygen Ratio Control Valve Bracket 6 122006844 Flow Regulator Assembly 7 122006846 Flow Sensor Assembly 8 130011970 Fixed Board 9 210003471 Flow Sensor 10 130012246 Flow Sensor Manifold NOTE: When replacing Part1 and Part2, please refer to Diagram1; when replacing Part4, Part6 and Part7, please refer to Diagram2. NOTE: Don’t leave filtration and sealing gasket behind when replacing flow sensor 2.1.6. Vaporizer Manifold As shown in figure, vaporizer manifold can be used to support anesthetic vaporizer. When vaporizer manifold is installed with anesthetic vaporizer, the anesthetic gas in it can be input to anesthesia system through vaporizer manifold. When anesthetic vaporizer is unloaded, vaporizer manifold can be used as gas flow channel. Part Number:122005534 Fig. Back View 1. Gas inlet port, through which gas goes into the vaporizer. 2. Gas outlet port, through which the fresh gas flow to the breathing system. 2.1.7. O2 Flush Valve As shown follow figure, by pressing the button, high flow of 35L/min~50L/min can be provided to fresh gas outlet. When connected to Central Gas Supply System or Back-up Cylinder, even if the machine is power off, press the ―O 2+‖ button, the high flow O2 could be sent to breathing system or breathing bag. 26 O2 flush valve 1 Tube connector connected to the oxygen pressure regulator, when O2 flush button is pressed, O2 flows into the connector (1) from oxygen pressure regulator 2 Tube connector connected to C.G.O; when O2 flush button is pressed, O2 flows from connector (1) to connector (2),and finally to the patient. 2.1.8. Auxiliary O2 output device Fig. Auxiliary O2 output device 1. Auxiliary O2 output port Auxiliary O2 flow-meter Auxiliary O2 flow-meter is fixed on the machine with 2screws.there is rotary knob, with which user can adjust the flow of O2. 2. Auxiliary drive gas output port When the range of inlet gas pressure is 280—600kpa, the flow of drive gas output is more than 90L/min. WARNING :The requirement flow of the device connected to the auxiliary drive gas outlet interface cannot exceed 90L/min 2.1.9. Breathing System The breathing system is integrated into a compact aluminum block, directly connecting with patient’s respiratory tract to help complete breathing process. The main function is to store anesthesia gas, oxygen and air, discharge waste gas, absorbed carbon dioxide. Also, this block is heated to body temperature to prevent condensing of humidified gases within the breathing system, thus improving airway climatization for the patient's re-breathing of respiratory gases. 28 Fig. Breathing system assembly NO. Part Name NO. Part Name 1 Bellows Assembly 8 Inspiratory Port 2 APL Valve 9 Test Plug 3 Breathing Bag Arm 10 Expiratory Port 4 Expiratory Valve 11 Hook 5 Water drain valve 12 O2 Cell Plug 6 Inspiratory Valve 13 Canister 7 Airway Pressure Gauge 14 Canister Release Handle 2.1.9.1. Partial structure of breathing system NO. Part Number Part Name 1 130010341 AC200 Assembly 2 122005511 Airway Pressure Gauge 3 122005512 Inspiratory Valve Assembly 4 122001761 APL Valve 5 122005513 Expiratory Valve Assembly 6 301000098 Cross recessed pan head screw M3×12 30 2.1.9.2. Detail Structure of Inspiratory/Expiratory Valve 122005513 Expiratory valve 122005512 Inspiratory valve Fig Inspiratory/Expiratory Valve NO. Part Number Part Name 1 130006265 Valve nut 2 130007763 Expiratory valve cover 3 130002188 Valve support arm 4 130004102 Valve film 5 130004147 Valve gasket 6 130010350 Valve base 7 304000108 O-type latex gasket Ø42X1.8 8 304000102 O-type latex gasket Ø22X1.8 9 130007762 Inspiratory valve cover 2.1.9.3. Bellows assembly NO. Part Number Part Name 1 130004086 Bellows dome 2 122005548 Bellows assembly 3 130004091 U-type gasket 4 130010369 Bellows fixing base 32 2.1.9.4. Interior structure of bellows NO. Part Number Part Name 1 130010369 Bellows fixing base 2 130010341 AC200 integration 3 130010379 AC200 below cover 4 122005518 Valve assembly 5 122001737 Switch assembly 6 122005519 Bellows check valve assembly 7 130010378 O-type sealing gasket Ø62.5X1.8 8 304000096 O-type silica gel sealing gasket Ø9X1.8 9 304000068 O-type latex gasket 28×1.8 10 304000101 O-type silica gel sealing gasket Ø20×1.8 11 301000333 Hexagon lobular socket head cap screw M4×10 2.1.9.5. Absorber Canister NO. Part Number Part Name 1 130004092 Absorber hose 2 130006429 Absorber mount assembly 3 130006258 Elastic gasket (1) 4 130003231 Canister soda lime 5 130004098 Absorber screen, metal 6 130006417 Elastic gasket (2) 34 2.2. Electrical system ADS II Anesthesia Workstation machine is divided into two parts, the upper part and down part. The upper parts of machine provide the operation, alarm and system management functions. The down parts of machine realize the functions of signal collection, signal process and critical controlling (mode algorithm) to improve the system integration and stabilization grade, and realize the function of power management and flowmeter electrical displayed through using MCU. First, the gas flow and pressure signal convert to electric signal via the flow and pressure sensor. After the magnification and regulation circuit, the electronic signal converts to digital signal through the AD conversion circuit. The controller manages the electrical element to realize the ventilation function. ADS II Anesthesia Workstation is a multi-processor system, the down part of machine can complete the controlling function while the upper part of machine can realize the operator-machine intercommunication function; the controller on the communication board can deal with the keyboard input data and manage the power supply, also can monitor the working state of host through the communicating data. 2.2.1. Electrical components overview Battery 24V Outlet with Fuse Power Cord Line filter AC Fuse Power Supply Power Board LVDS 12V VGA Board COM1 with me COM2 COM2 with Main controller Board COM3 COM3 with Information systems COM4 COM4 with CO2 USB USB Reservation LCD Communication Board Internet Reservation Internet CCFL POWER 12V and Controller CCFL Power COM1 Connect Flowmeter Board Board Communication with Power Board Alarm driver Power UI PC104 PC104 5V Single Power 5V Single Touch control Board Information systems interface CO2 interface Insulation Board Insulation Interface Speaker interface Fig. Electrical components diagram 36 ADS II ANESTHESIA WORKSTATION MANUAL Version 1.00 May, 2014 Main controller Board O2 Sensor WoodWard Control PEEP Control Manual Control WoodWard Valve PEEP Valve Manual Valve O2 Sensor ADS II Anesthesia Workstation Service Manual 2.2.2. Cable connection diagram Input AC Touching panel LCD J3 Connect W33 W32 Encode LJ3 J6 W34 W6 W29 J4 J1 W16 J11 J13J12 W22 J7 J6 J8 Isolate Board W30 Speaker Top Light Switch LED Switcher P6 LED EFM Display Board W21 Fuse 250V/2A P1 P4 W19 Fuse 250V/2A J9 ConnectA J2 W11 W31 Flow Sensor J5 W10 LJ4 J12 W12 J4 J5 W18 J3 J2 J1 J1 P2 W9 W4 LJ2 LJ1 W1 W2 Switcher Power Cable connection diagram ADS II ANESTHESIA WORKSTATION MANUAL Version 1.00 May, 2014 O2 Sensor Main Control Board Power Supply Board J13 J4 Filter W24 J2 Fuse 250V/2A W20 J1 Socketoutlet W26 Top Light J1 P4 J3 Socketoutlet W35 J2 Socketoutlet AC Indicate LED Fuse 250V/2A Touch Control Board W25 W23 Socketoutlet PC104 J3 Breathing System W27 J5 JJ1 W8 J4 J3 Fuse 250V/10A Key Board W5 Switcher W28 W7 J1 W17 Gas Supply Check Board 37 W3 Battery Group W15 W14 W13 Solenoid Valve PEEP Woodward Valve Ambient Pressure Board ADS II Anesthesia Workstation Cables NO. W1 W2 Part Number 122006831 122006832 Part Name Connector Ⅰ Switching Power Supply input Switching Power cable Supply Switching Power Supply output PSB cable (PSB) J2 Connector Ⅱ LJ1 Switching Power Supply output connector W3 122005710 Battery assembly (OT-4) LJ2 Battery W4 122005711 3-Power supply cable of PSB J1 on PSB LJ2 W5 122006825 Host switch cable Interface Board –Breathing W6 122006835 system heating cable W7 210003473 LED-PC104 cable J12 on B side of Interface Board J13 on B side of Interface Board PC104 Host switch SW1 LJ3 LED LCD G1211L04 J4 on W8 210003474 Screen backlight cable Communication Screen Board W9 122006821 W10 122006822 PSB-Interface Board cable PSB- Interface Board communication cable P2 on PSB J4 on PSB Main control W11 122006823 board(MCB)-Interface board J4 on MCB power supply cable W12 122006824 W13 122001791 W14 240000129 38 MCB-Interface board communication cable J5 on MCB Solenoid Valve assembly J8 on MCB (AMISCO24V) PE to valve Proportional valve 1350-5083 J1 on MCB J3 on Interface Board J2 Interface Board J9 on A side of Interface Board J3 on Interface Solenoid Valve Inspiratory valve ADS II Anesthesia Workstation Cables W15 122002026 IP valve assembly W16 122006826 LED indicator assembly W17 122006828 GSPB cable W18 122006827 APB cable W19 122006830 W20 210003052 W21 122005731 W22 122006829 Top light switch assembly W23 122005733 Back light assembly of top light W24 210003053 W25 122006820 W26 122006819 EFM board power supply and communication board 5-core shield cable LE.BA105.ABE J2 on MCB J11 on B side of Interface Board J14 on B side of Interface Board Expiratory valve LED signal light GSPB J1 MCB J13 APB J1 Interface board J1 EMF board J1 MCB J12 LJ4 Interface –light power supply Interface board J7, cable 1W/LED J8 on Interface board B side J6 on Interface board B side Light switch Boat switch top light board 5-core shield cable LEMO 5-core O2 sensor , LE.BA106.AAW socket Shield layer Communication board- interface J4 on Interface Communication board cable board B side board J6 Communication board- ISB cable Communication board JJ1 Communication W27 board 27-1 ISB J2 PC104 COM1 COM1 COM2 COM2 27-3 COM3 COM3 27-4 COM4 COM4 27-2 122006818 Touching panel-touching control W28 W29 OM1-COM4 cable board cable 122006842 PC104-Touching control board cable Touching panel PC104 Touching control board Touching control board 39 ADS II Anesthesia Workstation Cables W30 122006833 speaker assembly ISB J3 Speaker (8ohm/0.5W) Flow sensors W31 122006847 SFM7050 flow sensor cable EFM board SFM7050 O2, SFM7050 AIR, SFM7050 N2O Communication W32 122002061 Encoder assembly W33 130007932 English Panel J4 on W34 122001624 Host- breathing system cable LJ3 W35 122002194 Communication board -PC104 Communication power supply cable board J5 NOTE: GSPB Gas Supply Pressure Board MCB Main Control Board EFM Electronic Flowmeter Board APB Ambient Pressure Board ISB Isolation Board TLB Top Light Board 40 board J3 Encoder Panel Breathing system heating LJ6 PC104 J5 2.2.3. Power Supply Board (PSB) Connectors Quick Reference 2 1 J1 P2 5 J4 J2 Top View of PSB 3 4 41 Bottom View of PSB J1: Battery Connector Connector type: 3.96mm pitch 1×3 pin header Pin Name Function 1 BAT Battery Supply Input+ 2 GND Power Ground 3 BATV+ Battery Test Input J2: Power output Connector Connector type: 3.96mm pitch 1×4 pin header Pin Name Function 1 +24V 24V DC Input 2 +24V 24V DC Input 3 GND Power Ground 4 GND Power Ground 42 J4: Communication Connector Connector type: D-SUB, DCH-9P Pin Name Function 1 /PWON Power On Enable, Low active 2 RS232 TXD RS232A Transmit Data 3 P3.6V_Enable Power 3.6V Enable, High active 4 GND Ground 5 TSN Temperature Data Sample 6 RS232 RXD RS232A Receive Data 7 GND Ground 8 P12V_Enable Power 12V Enable, High active 9 PRESSURE_AD2 No Function P2: Power Supply Connector Connector type: 4.20mm pitch 2×7 pin header Pin Name Function 1 P3.6V Power 3.6V 2 GND Power Ground 3 P12V Power 12V 4 GND Power Ground 5 A12V Analog Power 12V 6 GND Power Ground 7 +5V Analog Power 5V 8 GND Power Ground 9 RETURN Heating Sample Signal 10 POUT Heating Power Output 11 +24V 24V DC Input 12 PWBUS Power Bus 13 GND Power Ground 14 GND Power Ground 43 LED Indicating Definition NO. Designator Status Function 1 DS1 GREEN AC Power Input is active 2 DS2 GREEN Power Bus Output is active 3 DS6 RED Heating Power Output is active 4 DS7 GREEN PSB is OK 5 DS8 GREEN Battery charging is progress T7 T19 T16 T26 T3 T8 T1 T5 T10 T4 T2 T6 T18 T21 T22 T14 T24 T12 T25 44 T11 T13 T9 T15 Test Point Definition Pin Name Function T1 30V 30V for charge T2 24V 24V DC Input T3 PWBUS Power Bus T4 A12V Analog Power 12V T5 P12V Power 12V T6 +5V Analog Power 5V T7 P3.6V Power 3.6V T8 BAT Battery Supply Input+ T9 VDD Analog Power 5V T10 POWER 24V T11 5VAUX 5V Auxiliary T12 POUT Heating Power Output T13 BAT_M Battery Monitor Signal T14 DQ Temperature Data Sample T15 DQ1 Ambient Temperature Data Sample T16 GND Power Ground T17 GND Power Ground T18 PWEN Power On Enable, High active T19 voltage of charge T20 GND Power Ground T21 GND Power Ground T22 GND Power Ground T24 GND Power Ground T25 PWM Heating Control Signal T26 BAT Battery Supply Input+ 45 2.2.4. Main control board (MCB) Connectors Quick Reference 1 J5 J4 J1 2, 3, 4 J12 J2 J3 J13 J7 Top View of MCB 46 Bottom View of MCB J1: Woodward valve Connector Connector type: 2.54mm pitch 1×4 pin header Pin Name Function 1 P12V Power 12V 2 NC NC 3 NC NC 4 Inhale Inspiratory valve J2: IP valve Connector Connector type: 3.96mm pitch 1×2 pin header Pin Name Function 1 P3.6V Power 3.6V 2 Exhale Expiratory valve J3: Solenoid valve Connector 47 Connector type: 2.54mm pitch 1×2 pin header Pin Name Function 1 PWBUS Power Bus 2 Manual Manual/AUTO Valve J4: Power Supply Connector Connector type: 4.20mm pitch 2×5 pin header Pin Name Function 1 P3.6V Power 3.6V 2 GND Power Ground 3 GND Power Ground 4 PWBUS Power Bus 5 P12V Power 12V 6 GND Power Ground 7 GND Power Ground 8 GND Power Ground 9 A12V Analog Power 12V 10 +5V Analog Power 5V J5: Communication Connector Connector type: D-SUB, DCH-15P Pin Description Function 1 GND Power 2 BDU_UI_RS232_RXD BDU Receive Data 3 EFM_RX EFM Receive Data 4 GND Power Ground 5 P3.6V_Enable Power 3.6V Enable, High active 6 Flower meter Flower meter Signal 7 NC NC 8 S_IN(No Function) NC 9 BDU_UI_RS232_TXD BDU Transmit Data 48 10 GND Power Ground 11 EFM_RX EFM Transmit Data 12 P12V_Enable Power 12V Enable, High active 13 GND Power Ground 14 GND Power Ground 15 PRESSURE1 Pressure of Gas Supply J12: O2 Sensor Connector Connector type: 2.54mm pitch 1×4 pin header Pin Description Function 1 O2_N O2 Sensor signal Input- 2 O2_N O2 Sensor signal Input- 3 O2_P O2 Sensor signal Input+ 4 GND Power Ground J13: Ambient Pressure Signal Connector Connector type: 2.54mm pitch 1×3 pin header Pin Description Function 1 GND Power Ground 2 Pair Ambient Pressure Signal 3 +5V Analog Power 5V J7: Turbine Connector (no function) Connector type: 2.54mm pitch 1×3 pin header Pin Description 1 +5V 2 GND 3 Turbine signal 49 LED Indicating Definition Designator Status Function 1 D8 GREEN Analog Power 3.3V is active 2, 3, 4 D10, D11, D12 GREEN (Flash) MCB is OK T8 T4 T3 T10 T6 T9 T2 T1 T5 T12 T11 T7 Test Point Definitions Designator Name Function T1 2.5V Reference Voltage of DAC T2 AR10V Analog Power 10V 50 T3 Ex _En Power 3.6V Enable, High active T4 In _En Power 12V Enable, High active T5 DA _In DA Voltage of T6 A12V Analog Power 12V T7 DA _Ex DA Voltage of Expire Valve T8 Ex _AD AD Voltage of Expire Valve T9 I _In DA Voltage of Inspire Valve T10 E _In DA Voltage of Expire Valve T11 M _Valve Manual/AUTO Valve Check T12 M_EN Manual/AUTO Valve Enable, Low active T13 NC NC T14 NC NC T15 Flower mete _AD Flower mete _AD Voltage T16 CCP Not Use T17 GND Power Ground T18 3.3V Analog Power 3.3V T19 1.8V Analog Power 1.8V T20 In _AD AD Voltage of T21 CLK Clock Signal T22 CPU_RST CPU RESET Signal T23 TX_B BDU Transmit Data T24 RX_B BDU Receive Data T25 NC NC T26 NC NC T27 NC NC T28 NC NC T29 5V Analog Power 5V T30 5.5V Analog Power 5.5V T31 GND Power Ground T32 REF Reference Voltage T33 INSP_AD Inspiration flow voltage T34 S_INSP Inspiration Sensor Signal T35 2.048V Reference Voltage 2.048V T36 NC NC Inspire Valve Inspire Valve 5V 51 T37 GND Power Ground T38 PAIR Ambient Pressure Signal T39 GND Power Ground T41 GND Power Ground T42 PAW Pressure inside airway T43 S_IN Not Use T44 SUP_AD Not Use T45 S_PAW Airway Sensor Signal T46 O2 O2 Sensor Signal T47 NC NC T48 O2 Sensor O2 Sensor Amplified Signal T49 AAA Not Use T50 AAA Not Use T51 24V 24V T52 GND Power Ground T53 NC NC T54 P3.6V Power 3.6V T55 GND Power Ground T56 P12V Power 12V T57 GND Power Ground T58 SUP1_AD AD voltage of Gas Supply T59 GND Power Ground T60 GND Power Ground T61 GND Power Ground T62 GND Power Ground T63 PRESSURE1 Signal of Gas Supply T64 GND Power Ground 52 2.2.5. Interface Board Connectors Quick Reference J11 J13 J12 J1 P6 J14 J10 J7 J6 J8 J4 Top view of Interface Board 53 J3 J2 J5 J3 Bottom View of Interface Board J11: AC Power LED Indicators Connector Connector type: 2.55mm pitch 1×2 pin header Pin Description 1 GND 2 LED voltage 54 J13: Heating Connector Connector type: 3.96mm pitch 1×3 pin header Pin Description 1 RETURN 2 DQ 3 OUT J12: Switcher Connector Connector type: 2.54mm pitch 1×3 pin header Pin Description 1 GND 2 NC 3 ON J1: EFM Connector Connector type: 2.54mm pitch 1×6 pin header Pin Description 1 +12V 2 GND 3 +5V 4 GND 5 EFM_RX 6 EFM_TX 55 P6: Fresh Gas Flow Sensor Connector NOTE: Note used on ADS II Anesthesia Workstation Connector type: 2.0mm pitch 1×4 pin header Pin Description 1 Flow meter signal 2 +10V 3 GND 4 NC J14: Gas supply Signal Connector Connector type: 2.54mm pitch 1×5 pin header Pin Description 1 PRESSURE1 2 +12V 3 GND 4 +12V 5 S_IN J10: Flow Meter Backlight Connector Connector type: 2.54mm pitch 1×2 pin header Pin Description 1 +24V 2 GND J7: LED Connector Connector type: 3.96mm pitch 1×2 pin header Pin Description 1 +24V 2 ON/OFF J6: Top Light Connector 56 Connector type: 2.54mm pitch 1×2 pin header Pin Description 1 +24V 2 Top light J8: Top Light Switch Connector Connector type: 2.54mm pitch 1×4 pin header Pin Description 1 Top light 2 OFF 3 Low 4 High J4: Power and communication Connector Connector type: D-SUB, DCH-25P Pin Description Pin Description 1 GND 2 BDU_UI_RS232_RXD 3 RS232 TXD 4 GND 5 NC 6 NC 7 NC 8 NC 9 NC 10 +24V 11 +24V 12 GND 13 GND 14 BDU_UI_RS232_TXD 15 GND 16 RS232 TXD 17 NC 18 NC 19 NC 20 NC 21 NC 22 +24V 23 +24V 24 GND 25 GND J3: Power Supply Connector 57 Connector type: 4.20mm pitch 2×7 pin header Pin Description 1 +3.6V 2 GND 3 P12V 4 GND 5 A12V 6 GND 7 +5V 8 GND 9 RETURN 10 POUT 11 +24V 12 PWBUS 13 GND 14 GND J2: Communication Connector Connector type: D-SUB, DCH-9P Pin Description 1 /PWON 2 RS232 TXD 3 P3.6V_Enable 4 GND 5 TSN (temperature data sample) 6 RS232 RXD 7 GND 8 P12V_Enable 9 PRESSURE_AD2 (No Function) J5: Communication Connector Connector type: D-SUB, DCH-15P 58 Pin Description 1 GND 2 BDU_UI_RS232_RXD 3 EFM_RX 4 GND 5 P3.6V_Enable 6 Flow meter signal 7 NC 8 S_IN(No Function) 9 BDU_UI_RS232_TXD 10 GND 11 EFM_RX 12 P12V_Enable 13 GND 14 GND 15 PRESSURE1 J9: Power Supply Connector Connector type: 4.20mm pitch 2×5 pin header Pin Description 1 +3.6V 2 GND 3 GND 4 PWBUS 5 P12V 6 GND 7 GND 8 GND 9 A12V 10 +5V 59 2.2.6. Communication Board (KBD) Connectors Quick Reference J3 J4 1 J1 J6 COM1 COM2 COM3 J5 JJ1 COM4 Top View of Communication Board Bottom View of Communication Board 60 J7 J4: Power and communication Connector Connector type: D-SUB, DCH-25P Pin Description Pin Description 1 GND 2 BDU_UI_RS232_RXD 3 RS232 TXD 4 GND 5 NC 6 NC 7 NC 8 NC 9 NC 10 +24V 11 +24V 12 GND 13 GND 14 BDU_UI_RS232_TXD 15 GND 16 RS232 TXD 17 NC 18 NC 19 NC 20 NC 21 NC 22 +24V 23 +24V 24 GND 25 GND J5:PC104 Power Supply Connector Connector type: 3.96mm pitch 1×4 pin header Pin Description 1 +5V 2 GND 3 GND 4 +12V 61 JJ1: Isolation Board Connector Connector type: D-SUB, DCH-15S Pin Description 1 RX- 2 TX- 3 USB+5V 4 PC_D-1 5 OUTA 6 GND 7 COM4RXD 8 COM3RXD 9 RX+ 10 TX+ 11 PC_D+1 12 OUTB 13 +5V 14 COM4TXD 15 COM3TXD COM1—COM2: Serial Port Connectors Connector type: 2.00mm pitch 2×5 box header Pin Description Pin Description 1 DCD# 2 RXD 3 TXD 4 DTR# 5 GND 6 DSR# 7 RST# 8 CTS# 9 R1# 10 N/C 62 J7:CO2 Connector (Optional) Connector type: 3.96mm pitch 1×5pin header Pin Description 1 TXD 2 RXD 3 GND 4 +5V 5 NC J1: Keyboard Connector Connector type: 2.54mm pitch 2×5 box header Pin Description Pin Description 1 GND 2 K1 3 K2 4 K3 5 /PWON 6 GND 7 K5 8 K6 9 K7 10 N/C J4: Inverter Connector Connector type: 1.25mm pitch 1×6pin header Pin Description 1 +12V 2 +12V 3 GND 4 GND 5 ON/OFF 6 DIM 63 J3: Encode Connector Connector type: 2.54mm pitch 1×6pin header Pin Description 1 GND 2 TSP 3 GND 4 TSB 5 TSA 6 ECV LED Indicating Definition NO. Designator Status Function 1 D8 GREEN(Flash) Communication Board 64 is OK T1 T4 T3 T2 Test Point Definitions Designator Name Function T1 +5V Analog Power 5V T2 P12V Power 12V T3 +3.3V Analog Power 3.3V T4 GND Power Ground T5 I2C1_SCL I2C1 Clock Signal T6 I2C1_SDA I2C1 Data Signal T7 OUTB Speaker - T8 OUTA Speaker + 65 2.2.7. Ambient Pressure Board (APB) Connectors Quick Reference J1 Top View of APB Bottom View of APB J1: Ambient Pressure Signal Connector Connector type: 2.54mm pitch 1×3 pin header Pin Description 1 GND 2 Ambient Pressure Signal 3 +5V 66 2.2.8. Gas Supply Pressure Signal Board (GSPB) Connectors Quick Reference J1 Top View of Gas Supply Pressure Signal Board Bottom View of Gas Supply Pressure Signal Board J1: Gas Supply Pressure Signal Connector Connector type: 2.54mm pitch 1×4 pin header Pin Description 1 Gas Supply Pressure Signal 2 A12V 3 NC 4 NC 67 2.2.9. Breathing System Heating Board Connectors Quick Reference Top View of Breathing System Heating Board Bottom View of Breathing System Heating Board Connector type: LEMO4, PKG.NO.4SL.LG Pin Description 1 RETURN 2 TSN 3 POUT 4 PE 68 2.3. Electric Box Fig. Electric box of ADS II Anesthesia Workstation NO. Part Number Part Name 1 122006807 Pneumatic box 2 210003567 Switching power supply 3 122006836 PSB 4 122006843 Interface board 5 122006871 Gas module assembly 6 122005710 Battery assembly 7 122005725 IP valve assembly 8 122006838 Main control board 69 2.3.1. Gas module assembly NO. Part Number Part Name 1 130003915 Gas Exhaust port 2 122000834 Safety valve 3 304000120 O-shape rubber sealing gasket 25 X 1.8 4 130003913 Position pointed ferrule 5 304000099 O-shape rubber sealing gasket 16×1.8 6 130003914 Inhalation gas port (Drive gas) 7 240000097 Solenoid Valve 8 220000426 Right angle gas connector 9 130003912 Gas integration module 10 130400096 O-shape rubber sealing gasket 9X1.8 11 240000129 Proportional Valve 12 122006848 Ambient Pressure Board 70 2.3.2. IP valve (PEEP valve) IP valve fixed to the machine with 4 screws on it, shown as Fig. The main function is controlling PEEP valve, peak pressure and plateau pressure. The PEEP valve regulates the pressure at which the exhaust valve opens, therefore the exhaust valve opens only when the pressure exceeds the set PEEP pressure. Fig. IP Valve 2.3.3. Battery Assembly Fig. Battery Assembly [Type text] NO. Part Number Part Name 1 130007963 Battery Box 2 210002830 Battery 3 130007965 Battery Shield 2.4. AC power supply assembly No. Part No. Part Name 1 210002134 Power cable 2 210000181 Mains socket 3 210001737 Fuse 250V/10A 4 210000208 Fuse 250V/2A 5 130011885 Power supply bracket 6 122001805 Speaker assembly 7 122006840 Isolation board 8 130007943 Socket fixing plate 9 210001746 European-type Terminal Asm. 10 210001787 Power supply waveform filter 11 130011887 Power supply cover 72 2.5. Screen assembly No. Part No. Part Name 1, 3 Screen Bracket 130007999 2 Touch Screen 210003389 4 Isolation Plate 130013105 5 Communication Board 122006839 6 PC104 210002616 7 Screen Controller 210002615 73 3. Checkout 3.1. Inspect the system WARNING: Make sure that the breathing system is in good connection and with no damage. Make sure the ADS II Anesthesia Workstation has no damage. Make sure all parts are correctly connected. Make sure the breathing system is correctly connected and has no damage; the absorber canister is fully filled with soda lime. Make sure the vaporizer is well locked and is filled with adequate anesthetic agent. Make sure the pipeline gas supply system is correctly connected and is at proper pressure. Make sure backup equipment is available and functioning. Make sure anesthetic agent and emergent medicine are available. Make sure the castors are not loose and the forefront two castors are locked. Make sure the ADS II Anesthesia Workstation is connected to power socket and power indicator is light. There is no power supply if power indicator does not light. 3.2. Electrical safety tests CAUTION: Perform the electrical safety inspection as the last step after completing a repair or after routine maintenance. Perform this inspection with all covers, panels, and screws installed. 1. Unplug the power cables from the convenience receptacles at the rear of ADS II Anesthesia Workstation. 2. Plug ADS II Anesthesia Workstation into a safety analyzer. 3. Connect the case ground lead of the analyzer to the U-blade ground of one of the convenience receptacles. Perform the following tests with the case grounded: 4. 5. 74 Normal polarity Normal polarity with open neutral Perform the following tests with the case ungrounded: Normal polarity Normal polarity with open neutral Reverse polarity Verify that the maximum leakage current does not exceed 300μA (0.3mA). 3.3. System test 3.3.1. Set-up test WARNING: Make sure the assembly of patient breathing tube and controlling setting is correct before ventilating. 1. Plug the power cord to an electrical outlet. 2. Connect the pipeline gas resource or cylinder gas resource (open the cylinder valve). 3. Close O2, N2O, Air flow meter and the auxiliary O2 flow meter. 4. Turn the switch to ― ON‖. The user interface lights on, entering system self-test interface. Fig.3-1 3.3.1.1. System Self–test Enter into the system self-test interface after opening. Fig.3-2 75 After the system self-test: 1) Select and confirm ― Continue‖, the Automatic Test starts. Fig.3-3 2) Select and confirm ― Skip‖, the ― Manual Test‖ interface appears. Fig.3-4 76 3.3.1.2. Automatic Leak Test After System Self Test, the automatic Test starts. Follow instructions on the user interface. Select ― Continue‖ to perform Automatic Test. 2) Select ― Skip‖ to proceed to Manual Test. Fig.3-5 Select ― Continue‖, the system enter into the Automatic Test interface. ― Automatic Test„‖ appears in the user interface. Fig.3-6 77 These situations may appear during the automatic test, If these situations appear, please: 1. Do according to the prompt message on the user interface. 2. Select “Continue” and press the knob the system starts to re-test, The interface displays shown as above picture. 1. If the E-flowmeter isn’t closed, the message ― Please close the flowmeter‖ appears on the user interface. Select ― Continue‖ to perform Automatic Test again. 2) Select ― Skip‖ to proceed to Manual Test. Fig.3-7 2. If the bellows is not full, the message ― Push ― O2+‖ flush to completely fill the Bellows‖ appears on the user interface. 1) Select ― Continue‖ to perform Manual Test again. 2) Select ― Skip‖ to proceed to Manual Test. Fig.3-8 78 Automatic Test results 1. Automatic Test failed If the pressure sensor (Ambient pressure sensor and Airway pressure sensor) is disabled, the automatic test will fail and the prompt message will appear on the user interface. Fig.3-9 In the situation, only the manual ventilation is available. Select ― Manual‖ to enter into Standby screen. 2. Automatic Test failed If the safety valve in the gas module is disabled the automatic test will fail, and the interface as the picture on the right appears. Select ― Continue‖ to perform Manual Test, the automatic ventilation is disabled. Fig.3-10 79 3. Automatic Test failed If the pressure rises during automatic test, the test will fail and the interface as the picture on the right appears. 1) Select ― Retry‖ to do the Automatic Test again. 2) Select ― Skip‖ to proceed to Manual Test, the automatic Fig.3-11 ventilation is disabled. 4. If the leakage is more than 400ml/min, the interface shows as the picture on the right. 1) Select ― Retry‖ to perform the Automatic Test again. 2) Select ― Skip‖ to proceed to the Manual Test, the automatic ventilation is disabled. Fig.3-12 5. If the leakage is at the range of 200-400mL/min, the interface shows as the picture on the right. 1) Select ― Retry‖ to perform the Automatic Test again. 2) Select ― Skip‖ to proceed to the Manual Test, the automatic ventilation is disabled. Fig.3-13 80 6. If the safety valve is valid and the leakage is less than 200mL/min, the automatic test is passed and then the system proceeds to the Manual Test. Fig.3-14 81 3.3.1.3. Manual Test 1. If the automatic test is not done before performing the manual test, the user interface of manual test will display as the picture on the right. Follow the instructions on the user interface. Select ― Skip‖, the system will enter into normal interface. Fig.3-15 2. If system enters into the Manual Test when partial automatic test is done, the user interface will display as the picture on the right. Press ― O2+‖ button according to the instructions on the user interface during 60s. Select ― Skip‖, the system will enter into normal interface. 82 Fig.3-16 Manual test results 1. If the PAW gauge value is bellow 20 cmH2O, the interface will display as the picture on the right. During the 60s count time proceed the procedure according to the instructions on the user interface. Select ― Skip‖, the system will enter into Standby interface. Fig.3-17 2. If the manual test fails for three times, the interface displays as the picture on the right. Select “Skip”, the system will enter into Standby interface. Fig.3-18 3. If the Y-piece port and manual bag arm connector are not occluded, the interface after test is shown as the picture on the right. During the 60s count time proceed the procedures according to the instructions on the user interface. Or the system will enter into Standby interface automatically after 60s. Fig.3-19 Select “Skip”, the system will enter into Standby interface. 83 4. There is no operation of pushing ― O2+‖ to fulfill the bellows during the first 60s count time after manual test interface appears, the interface on the right follows. Select “Skip”, the system will enter into Standby interface. Fig.3-20 5. If no operation is done during the first two 60s count down after the Manual test interface appears, the interface displays shown as the picture on the right. Select “Skip”, the system will enter into Standby interface. Fig.3-21 6.Manual test success If the manual test succeeds, the interface displays as shown on the right. The system will enter into Standby mode automatically after 5s count time. Fig.3-22 84 3.3.2. Check In standby mode, when the ― Check‖ button is selected, the system test will be performed including Leak test and Compliance Test. CAUTION: Check can only be performed in standby mode. 3.3.2.1. Leak Test After the ― Check‖ button is selected, the interface is as shown in the figure on the right. Follow instructions on screen to perform test CAUTION: Leak Test can only be performed in standby mode. Fig.3-23 Select ― Start‖ to perform Leak Test after completing the procedures on the screen. Fig.3-24 85 If the Leak Test is success, the interface is shown as the picture on the right. Select ― Finish‖ to perform Compliance Leak Fig.3-25 If the Leak Test fails, the interface is shown as the picture on the right. Select ― Repeat‖ to perform the Leak Test again. Select ― Return‖ to enter into normal interface. Fig.3-26 3.3.2.2. Compliance Test Select ― Compliance Test‖ sub-menu, if the interface shown as the picture on the right, select the ― Leak Test‖ sub-menu to perform leak test. Select ― Return‖ to enter into normal interface. NOTE: Perform the Leak Test prior to the Compliance Test when starting the system test. 86 Fig.3-27 If the Leak Test is performed first, the interface as the picture shown on the right appears after selecting Compliance Test sub-menu. Follow instructions on screen to perform test Fig.3-28 Select ― Start‖ to perform Compliance Test after completing the procedures on the screen. Fig.3-29 If the Compliance Test is success, the interface is shown as the picture on the right. Select ― Return‖ to finish the test. Fig.3-30 If the Compliance Test fails, the interface is shown as the picture on the right. Select ― Repeat‖ to perform the Leak Test again. Select ― Return‖ to enter into normal interface. Fig.3-31 87 3.4. Gas Delivery System Tests 3.4.1. O2 Flush Verification 1. Attach the digital flow meter to the common fresh gas outlet. 2. Verify that the O2 flush flow is between 35~50L/min when pressing the O2 flush valve. 3.4.2. O2:N2O Ratio System 1. Set the O2 and N2O flow control valves to minimum. 2. Rotate the N2O flow control valve until the top of the O2 flow meter’s floater rise to 1L/min. 3. Verify that the N2O flow is not higher than 3.7L/min. 4. Lower the N2O flow to minimum. 3.5. Pneumatic Leak Tests 3.5.1. N2O Cylinder Leak Test 1. Remove the N2O line pressure hose form the line pressure inlet on ADS II Anesthesia Workstation. 2. Mount a full N2O cylinder to the rear panel yoke. 3. Open the N2O cylinder until its pressure gauge indicates cylinder pressure. 4. Close the N2O cylinder. 5. The N2O cylinder pressure gauge should not drop more than 10% of its initial pressure over 1 minute. 3.5.2. O2 Cylinder Leak Test 1. Remove the O2 line pressure hose form the line pressure inlet on ADS II Anesthesia Workstation. 2. Mount a full O2 cylinder to the rear panel yoke. 3. Open the O2 cylinder until its pressure gauge indicates cylinder pressure. 4. Close the O2 cylinder. 88 5. The O2 cylinder pressure gauge should not drop more than 10% of its initial pressure over 1 minute. 3.5.3. AIR Cylinder Leak Test 1. Remove the AIR line pressure hose form the line pressure inlet on ADS II Anesthesia Workstation. 2. Mount a full AIR cylinder to the rear panel yoke. 3. Open the AIR cylinder until its pressure gauge indicates cylinder pressure. 4. Close the AIR cylinder. 5. The AIR cylinder pressure gauge should not drop more than 10% of its initial pressure over 1 minute. 3.5.4. Line Supply Check Valve Test 1. Connect and open a full gas cylinder on each yoke. 2. Verify the cylinder gauges operate. 3. Remove each line pressure hose one at a time from the wall supply inlet. 4. Verify no gas is escaping from any of the three central supply high pressure hoses connected to ADS II Anesthesia Workstation using a digital flow meter. 5. Verify there is no external damage to the gas supply inlet coupling on ADS II Anesthesia Workstation. 6. Reattach each central supply gas hose to the wall supply inlets. 3.5.5. N2O Line Pressure Leak Test 1. Remove the N2O cylinder from ADS II Anesthesia Workstation. 2. Connect the N2O line pressure hose to the line pressure inlet on ADS II Anesthesia Workstation. 3. Pinch the N2O line pressure hose to stop AIR line flow. 4. Remove the N2O line pressure hose from the N2O line source. 5. The N2O line pressure gauge should not fall more than 2psi in 20 seconds. 6. Reconnect the N2O line pressure and remove the pinch in the hose. 89 3.5.6. O2 Line Pressure Leak Test 1. Remove the O2 cylinder from ADS II Anesthesia Workstation. 2. Connect the O2 line pressure hose to the line pressure inlet on ADS II Anesthesia Workstation. 3. Pinch the O2 line pressure hose to stop AIR line flow. 4. Remove the O2 line pressure hose from the O2 line source. 5. The O2 line pressure gauge should not fall more than 2psi in 20 seconds. 6. Reconnect the O2 line pressure and remove the pinch in the hose. 3.5.7. AIR Line Pressure Leak Test 1. Remove the AIR cylinder from ADS II Anesthesia Workstation. 2. Connect the AIR line pressure hose to the line pressure inlet on ADS II Anesthesia Workstation. 3. Pinch the AIR line pressure hose to stop AIR line flow. 4. Remove the AIR line pressure hose from the AIR line source. 5. The AIR line pressure gauge should not fall more than 2psi in 20 seconds. 6. Reconnect the AIR line pressure and remove the pinch in the hose. 3.5.8. Cylinder Supply Check Valve Test 1. Close and remove all gas cylinders from ADS II Anesthesia Workstation. 2. Verify the cylinder gauges return to zero. 3. Using the digital flow meter, verify that no gas is escaping from any of the three yoke connections on ADS II Anesthesia Workstation. 4. Verify there is no external damage to the gas cylinder or yoke pins. 5. Reconnect the cylinders as necessary. 3.6. Breathing System Checks 3.6.1. Internal Gas Connections Test 1. Close and remove all gas cylinders from ADS II Anesthesia Workstation. 2. Connect only the AIR line pressure hose to ADS II Anesthesia Workstation from the wall 90 supply. Leave all other line pressure hoses disconnected. 3. With ADS II Anesthesia Workstation powered OFF, rotate the AIR flow control knob to ensure a continuous flow increase throughout its full range. 4. Disconnect the AIR line pressure hose form ADS II Anesthesia Workstation, and connect the O2 line pressure hose from the wall supply. 5. Fully rotate the N2O flow control knob and verify that there is not flow. 6. Fully rotate the AIR flow control knob and verify that there is no flow. 3.6.2. Drive Gas Pressure Loss Alarm, N2O Cut off Valve Test 1. Set the O2 flow to 2L/min using the flow control valve. 2. Set the N2O flow to 2L/min using the flow control valve. 3. Set the AIR flow to 2L/min using the flow control valve. 4. Interrupt the O2 supply to ADS II Anesthesia Workstation. 5. Verify that the flow of N2O and O2 stops within 2 minutes and that the flow of AIR (if available) continues to flow at 2L/min. 6. Verify the following alarms are activated: O2 Supply Failure appears on the screen An alarm tone sounds 3.7. Vaporizers 3.7.1. Vaporizer Interlock Test 1. Attach two vaporizers to the vaporizer mounting manifold and lock them in place. 2. Rotate either of the vaporizer dial to 3%. 3. Verify that the other vaporizer dial cannot be rotated to a setting. 4. Set both vaporizer dials to 0. 5. Rotate the other vaporizer dial to 3%. 6. Verify that the first vaporizer dial cannot be rotated. 7. Rotate both vaporizer dials to T and remove both vaporizers. 8. Verify that the locking spring is intact. 9. Reconnect both vaporizers to the vaporizer mounting manifold. 91 3.7.2. Vaporizer Leak Test CAUTION Verify the system has passed the leak test without the vaporizers prior to this test. 1. Verify that vaporizers are mounted correctly. 2. Ensure that the gas pressure for O2, N2O and AIR are at 50±10psi. 3. Power ON ADS II Anesthesia Workstation. 4. Attach a reusable-silicone –rubber breathing circuit to the Breathing System. 5. Tightly connect the Y-piece to the breathing system test plug. 6. Attach a breathing bag to the bag arm. 7. Set the APL valve to the fully closed position (70cmH2O). 8. Rotate the O2 flow control valve until 50cmH2O pressure is observed on the airway pressure gauge. 9. Verify that the necessary flow to stabilize the pressure is less than 300mL/min. 3.8. Performance Verification 3.8.1. STANDBY Mode Ventilation Test NOTE For testing purposes always use a reusable breathing circuit. 1. Ensure that the gas pressure for O2, N2O, and AIR are at 50±10psi. 2. Power ON ADS II Anesthesia Workstation. 3. Perform the startup tests per the on-screen instructions. Ensure successful completion. 4. Attach a breathing circuit and test lung to the Y-fitting of the breathing circuit. 5. Set the APL valve to 15cmH2O. 6. Set the AIR flow to 5L/min using the flow control valve. 7. Squeeze the breathing bag once every 10 seconds to inflate and deflate the test lung to approximately 20cmH2O of pressure. 8. Verify the inflation and deflation of test lung. 3.8.2. Manual Mode Ventilation Test 1. 92 Set the ventilation mode to MANUAL. 2. Set the APL valve to approximately 25cmH2O. Push the O2 flush button to fill the breathing bag. 3. Set the AIR flow to 1L/min using the flow control valve. 4. Squeeze the breathing bag once every 3 seconds. 5. Verify the inflation and deflation of the test lung. 6. Verify that an airway pressure waveform and all numeric values appear on screen during bag compressions. 7. Stop squeezing the breathing bag and set the APL valve to the open position. 3.8.3. APNEA Alarm Test 1. While in the manual ventilation mode, stop ventilating the test lung. 2. Verify that the following APNEA alarm signals activates at approximately 60 seconds from the last bag compression. APNEA appears on the screen. An alarm tone sounds. 3.8.4. Alarm MUTE Test 1. While the APNEA alarm is sounding, press the MUTE key. 2. Verify the audio portion of the alarm stops and resumes after 2 minutes. 3.8.5. VCV Ventilation Mode Test 3.8.5.1. VCV Adult Ventilation Mode Test CAUTION For testing purposes always use a reusable breathing circuit. 1. Attach a breathing circuit and breathing bag. 2. Attach an adult test lung to the Y-fitting of the breathing circuit. 3. Attach a vent tester between the expiratory port and the expiratory hose. 4. Set the O2 flow to 2L/min and set the N2O and AIR flow rates to minimum flow. 5. Set the ventilation controls to: 93 Ventilator Controls Ventilator Settings Patient Type Adult Ventilation Mode VCV Tidal Volume-VT 600 Breath Rate-freq 8 I:E Ratio-I:E 1:2 Plateau -Tp 10 PEEP OFF Pmax 40 6. Select VCV again to start ventilation. 7. Verify that the pressure waveform, Tidal Volume, Mean or Plateau Pressure, Resp. rate and minute volume vales appear on the screen. 8. Verify the Tidal Volume display is within 15% of the set value within approximately 1 minute from the start of ventilation. 9. Verify the Tidal Volume display is within 15% of the delivered volume measured with the vent tester within approximately 1 minute from the start of ventilation. 10. Verify the measured O2 concentration is at least 97% after 5 minutes. 11. Set the AIR flow to 3L/min and set the N2O and O2 flow rates to minimum flow. 12. Verify the measured O2 concentration is 21% ±3% vol.% after 5 minutes. 94 3.8.5.2. VCV Child Ventilation Mode Test CAUTION Limit the volume in the test lung to provide sufficient airway pressure to satisfy the Low Peak Pressure alarm. Or reduce the Peak Pressure alarm limit to a lower value to prevent the alarm when using an adult test lung. 1. Attach a breathing circuit and breathing bag. 2. Attach an adult test lung to the Y-fitting of the breathing circuit. 3. Attach a vent tester between the expiratory port and expiratory hose. 4. Set the O2 flow to 2L/min and set the N2O and AIR flow rates to minimum flow. 5. Set the ventilation controls to: Ventilator Controls Ventilator Settings Patient Type Child Ventilation Mode VCV Tidal Volume-VT 120 Breath Rate-freq 20 I:E Ratio-I:E 1:2 Plateau-Tp 10 PEEP OFF Pmax 40 6. Select VCV to start ventilation. 7. Verify that the pressure waveform, Tidal Volume, Mean Pressure, Resp. rate and minute volume values appear on the screen. 8. Verify the Tidal Volume display is within 25mL or±15% of the delivered volume (whichever is greater) measured with the vent tester within approximately 1 minute from the start of ventilation. 9. Verify the delivered volume as measured by a vent tester at the expiratory port, is within 17% of the Tidal Volume set value within approximately 1 minute from the start of ventilation. 95 3.8.6. Airway Disconnect Alarm Test 1. While the ventilator is running, disconnect the expiratory limb from the expiratory port on the Breathing System. 2. Verify the following airway pressure disconnect alarm signals activate: APNEA message appears on the screen. Low Airway Pressure message appears on the screen. An alarm tone sounds. 3.8.7. PCV Adult Ventilation Mode Test CAUTION For testing purposes always use a reusable breathing circuit. 1. Attach a breathing circuit and breathing bag. 2. Attach an adult test lung to the Y-fitting of the breathing circuit. 3. Attach a vent tester between the expiratory port and the expiratory hose. 4. Set the O2 flow to 3L/min and set the N2O and AIR flow rates to minimum flow. 5. Set the ventilator controls to: Ventilator Controls Ventilator Setting Patient Type Adult Ventilation Mode PCV Target Pressure -PTARGET 20 Breath Rate -freq 8 I:E Ratio-I:E 1:2 PEEP OFF Inspiratory Slope-Tslope 0.5 6. Select PCV to start ventilation. 7. Verify the Peak Pressure reading of the display is within ±4cmH2O of the Peak Pressure measured with the vent tester. 8. Verify that the pressure waveform Tidal Volume, Resp. Rate and minute volume values appear on the screen. 9. Verify that the Peak Value reaches 20±4cmH2O within five breaths from the start of ventilation. 96 3.8.8. Pressure Support (PS) Ventilation Mode Test CAUTION For testing purposes always use a reusable breathing circuit. 1. Attach a breathing circuit and breathing bag. 2. Attach an adult test lung to the Y-fitting of the breathing circuit. 3. Attach a vent tester between the expiratory port and the expiratory hose. 4. Set the O2 flow to 1L/min and set the N2O and AIR flow rates to minimum flow. 5. Set the ventilator controls to: Ventilator Controls Ventilator Setting Patient Type Adult Ventilation Mode PS Differential Pressure -ΔP 5 PEEP OFF Flow Trigger -Trigger 3 Inspiratory Slope-Tslope 0.5 Minimum frequency -freqMIN 4 6. Set PS to start ventilation. 7. Try to trigger the machine by slightly squeezing the test lung and releasing. Maintain a continuous breath rate. 8. Verify that a pressure waveform and all ventilation parameters appear on the screen. 9. Verify that the Peak Pressure reading on the display is ±4 the value of ΔP+PEEP. 10. Stop triggering breaths. 11. Verify that after 30 the ventilator delivers a breath and displays the message APNEA BACKUP. 12. Verify the system ventilates with a frequency of 2bpm. 97 3.9. Alarms and Failsafe Functions 3.9.1. Set Up CAUTION For testing purposes always use a reusable breathing circuit. 1. Ensure that the gas pressure for O2, N2O and AIR are at 50±10psi. 2. Power ON ADS II Anesthesia Workstation. 3. Perform the Startup Tests per the on-screen instructions. Ensure successful completion. 4. Attach a breathing circuit and breathing bag. 5. Attach an adult test lung to the Y-fitting of the breathing circuit. 6. Set the O2 flow to 2L/min and set the N2O and AIR flow rates to minimum flow. 7. Set the ventilator controls to: Ventilator Controls Ventilator Setting Patient Type Adult Ventilation Mode VCV Tidal Volume -VT 600 Breath Rate -freq 8 I:E Ratio -I:E 1:2 Plateau -Tp 10 PEEP OFF Pmax 40 8. Select VCV to start ventilation. 3.9.2. Low FiO2 Alarm Test 1. Set the flow FiO2 Alarm limit to 50% O2. 2. Set the AIR flow control valve to 5L/min. 3. Set the FiO2 flow controller to minimum flow. 4. Verify the following Low FiO2 alarm signals activate, within three ventilation cycles: 5. 98 Low FiO2 message appears on the screen. An alarm tone sounds. Set the Low FiO2 alarm limit to 18%. 6. Verify the alarm signals cease. 3.9.3. High FiO2 Alarm Test 1. Set the high FiO2 Alarm limit to 49% O2. 2. Set the FiO2 flow control valve to 5L/min. 3. Set the AIR flow controller to minimum. 4. Verify the following High FiO2 alarm signals activate: High FiO2 message appears on the screen. An alarm tone sounds. 5. Set the high FiO2 alarm limit to the max setting. 6. Verify the alarm signals cease. 99 3.9.3.1. Peak Pressure Alarms Test 1. Set the PAW Low alarm to the lowest setting. 2. Set the PAW High alarm limit set point about 5 to 8 digits below the Peak Pressure displayed on the upper left of the screen. 3. Verify the following (high) peak pressure alarms activate: High Airway Pressure message appears on the screen. An alarm tone sounds. Inspiration ends and expiration starts as the pressure meets the high alarm limit. 4. Set the PAW High alarm limit set point to 65cmH2O. 5. Verify the alarms signals cease. 6. Set the PAW Low alarm limit set point to 50cmH2O. 7. Verify the following (low) peak pressure alarms activate: Low Airway Pressure message appears on the screen. An alarm tone sounds. 8. Set the PAW Low alarm limit to 12cmH2O. 9. Verify the alarm signals cease. 3.9.3.2. Minute Volume Alarm Test 1. Set the MV Low alarm limit set point to the highest value. 2. Verify the following alarms activate: Low MV message appears on the screen. An alarm tone sounds. 3. Set the MV Low alarm limit to minimum setting. 4. Verify the alarm signals cease. 5. Set the MV High alarm set point to the lowest value. 6. Verify the following alarms activate: 7. High MV message appears on the screen. An alarm tone sounds. Set the MV High alarm limit set point to the highest value. Verify that the alarm signals cease. 100 3.10. Miscellaneous Tests 3.10.1. 1. Test the Line Voltage Alarm Before starting this test, verify that the battery is fully charged. The battery icon in the upper right corner of the screen is solid when the battery is fully charged. 2. Interrupt AC line voltage. 3. Verify that the following alarms activate: An alarm tone sounds. AC Power Failure message appears on the screen. 4. Verify that a fully charged battery operates the ventilator for a minimum of 45 minutes. 5. Plug ADS II Anesthesia Workstation into AC line voltage. 6. Verify that the alarm signals cease. 7. Verify the presence of the battery charging icon in the upper right corner of the screen (status bar moving from right to left). 3.10.2. Wheel Brakes Test 1. Verify that each from wheel brake operates. 3.10.3. Work Light Test 1. Turn on the work light located on the bottom side of the top panel. 2. Verify that it lights in both on positions. 3.10.4. 1. Auxiliary Flow Meter Verify an AIR flow of 15L/min can be obtained by connecting the auxiliary AIR hose to the pressure source and opening the flow meter. 2. Verify an O2 flow of 15L/min can be obtained by connecting the auxiliary O2 hose to the pressure source an opening the flow meter. 101 4. Configuration menu This section describes the Service level function of the ADS II Anesthesia Workstation. The Configuration menu has three parts which are password protected, including ― Vent Defaults‖, ― Alarm Defaults‖ and ― Service Mode‖. CAUTION: Configuration button is effective only in standby mode. Click on ― ‖menu on the right column of the screen, the correspond sub-menu appears on the screen Fig.4-1 4.1. Vent Defaults Vent Defaults submenu is for super-user and service engineer. When the ― Configuration‖ button is selected, the Vent Defaults interface appears. Fig.4-2 102 Enter the password ― 2020‖and click on ― ‖, the interface shown as the picture on the right appears. If enter wrong password, click on ― ‖ to clear the entered number. There are four ventilation modes in the ― Vent Defaults‖ tab, including VCV, PCV, SIMV and PS. Fig.4-3 Select one ventilation mode, the interface shown as the picture on the right appears. There are two sections of ventilation parameters in the menu, one for adult and the other for child. The user can set the default parameters for each ventilation mode. Fig.4-4 Settings entered will be used as the default settings after unit power up. "Load Factory Settings" button when pressed , will change the default settings to the factory defaults 103 4.2. Alarm Defaults Vent Defaults submenu is for super-user and service engineer. Select the Alarm Defaults sub-menu, the interface shown as the picture on the right appears. Fig.4-5 Enter the password ― 2020‖and click on ― ‖, the interface shown as the picture on the right appears If enter wrong password, click on ― ‖ to clear the entered number. There are four alarm limits which can be set as needed in the ― Alarm Defaults‖ tab, including Adult Vent Alarm Limits, Child Vent Alarm Limits, Gas Alarm Limits and Agent Alarm Limits. Settings entered will be used as the default settings after unit power up. "Load Factory Settings" button when pressed, will change the default settings to the factory defaults. 104 Fig.4-6 4.3. Service Mode Service Mode submenu is only for the service engineer. Use the service-level password ― 2010‖ to access the Service menu, which including ― Calibration‖, ― SW Update‖, ― Optional Functions‖, ― Optional Language‖ and ― Setup‖ Select the Service Mode sub-menu, the interface shown as the picture on the right appears. Fig.4-7 Enter the right password and click on ― ‖, the interface shown as the picture on the right appears If enter wrong password, click on ― ‖ to clear the entered number. Fig.4-8 105 4.3.1. Calibration The calibration submenu including Flow Valve, Flow Sensor, Pressure Sensor, PEEP Valve and Cal Data. Select ― Calibration‖ submenu, the screen displays as bellow picture. Fig.4-9 106 4.3.1.1. Flow Valve Set flow meters to 0 Remove Bellows, Restore the cover Remove I and E valve disks, Disconnect hose from reinstall valve covers Insp. port Seal Exp. ports Fig.4-10 Flow valve calibration Diagram Select ― Calibration‖ -- ― Flow valve‖ to enter the flow valve calibration screen. Select ― start‖ to perform flow valve calibration, and select ― ‖ to return to Calibration menu. Fig.4-11 107 Do the procedure according to the screen displayed message and ― Flow valve calibration Diagram‖. Then select ― start‖ the screen shown as the picture on the right appears. Fig.4-12 Select ― start‖ to perform flow valve calibration, the system calibrating screen shows as the picture on the right. Fig.4-13 If calibration success, the screen shown as the picture on the right appears Select “ ‖ back to Calibration menu. Fig.4-14 108 If calibration failure, the screen shown as the picture on the right appears Select ― Repeat‖ to do the flow valve calibration again Select “ ‖ back to Calibration menu. Fig.4-15 109 4.3.1.2. Flow Sensor Remove Bellows, Restore the cover Close flow meter Remove I and E valve disks, reinstall valve covers Flow Monitor (TSI) Seal Exp. ports Flow Regulator Fig.4-16 Inspiratory flow sensor calibration diagram 1. Connect one tube of flow regulator to Auxiliary O2 port. 2. Connect the other tube of flow regulator to one end of drive gas tube, of which the other end is connected to breathing system bottom. 3. Connect flow monitor (TSI) to Insp. Port NOTE: Before connecting TSI to ADS II Anesthesia Workstation, please set ― Gas‖ of TSI to ― Oxygen‖, and set ― Flow Units‖ of TSI to ― Volumetric L/min‖. The TSI window have been set is shown as following picture. 110 TSI Window Select ― Calibration‖ -- ― Flow Sensor‖ to enter the flow sensor calibration screen. Select ― start‖ to choose the flow sensor to be calibrated, and select ― ‖ to return to Calibration menu. Fig.4-18 Select ― start‖, the screen shown as the picture on the right appears. There are two bars on the screen, one for inspiration sensor and the other for expiration sensor Select one sensor to calibrate. Fig.4-19 Select ― ‖ to return to Calibration menu. 111 Do the procedure according to the screen displayed message and ― Inspiratory sensor calibration diagram‖. Then select ― Start‖ the system enters into the calibration interface. Fig.4-20 Select ― Start‖, the screen shown as the picture on the right appears. Calibrate 0, 3, 12 and 30 in turns. If the calibration success, the calibrated character is grey, other while the calibrated character is black. Fig.4-21 Select ― Start‖, the system starts the total calibration procedure. Select ― ‖ to return to Calibration menu. Regulate the throttle valve to make the flow to 0L/min and then press ― 0‖ button. The system starts 0 L/min calibration. If the 0 L/min calibration success, the interface shown as the picture on the right appears. Regulate the throttle valve to make the flow to other values and then press the corresponding button to do other calibrations. 112 Fig.4-22 If the 0 L/min calibration failure, the interface shown as the picture on the right appears. Press ― 0‖ button to do 0 L/min calibration again. Select ― Start‖, the system starts the total calibration procedure. Fig.4-23 Select ― ‖ to return to Calibration menu. Select ― Start‖, the screen shown as the picture on the right appears. Select ― ‖ to return to Calibration menu. Fig.4-24 If all the calibrations of 0, 3, 12, 30L/min success, the total calibration is successful and the interface shown as the picture on the right will appear. Select ― ‖ to return to Calibration menu. Fig.4-25 113 If one of 0, 3, 12, 30 calibration failure, the total calibration will fail and the interface shown as the picture on the right will appear. Select ― Repeat‖ the system goes back to the flow sensor initialization calibration interface. Fig.4-26 Select ― ‖ to return to Calibration menu. 114 Expiratory flow sensor calibration Close flow meter Remove Bellows, And then restore the cover Seal Ins. ports Remove I and E valve disks, reinstall valve covers Tube connector opens to AIR Connect flow monitor to Exp. Port Fig.4-28 The flow monitor connector position 1. Connect one tube of flow regulator to Auxiliary O2 port. 2. Connect the other tube of flow regulator to flow monitor (TSI). 3. Connect flow monitor (TSI) to Exp. Port 4. Connect a tube longer than 1m to the drive gas port at the bottom of breathing system, and make the other connector of tube open to AIR NOTE: Before connecting TSI to ADS II Anesthesia Workstation, please set ― Gas‖ of TSI to ― Oxygen‖, and set ― Flow Units‖ of TSI to ― Volumetric L/min‖. The TSI window have been set is shown as following picture. 115 TSI Window Select ― Calibration‖ -- ― Flow Sensor‖ to enter the flow sensor calibration screen. Select ― Start‖ to choose the flow sensor to be calibrated, and select ― ‖ to return to Calibration menu. Fig.4-31 Select ― Start‖, the screen shown as the picture on the right appears. There are two bars on the screen, one for inspiration sensor and the other for expiration sensor Select expiration sensor to calibrate. Fig.4-32 Select ― ‖ to return to Calibration menu. 116 Do the procedure according to the screen displayed message and ― Expiratory sensor calibration diagram‖. Then select ― Start‖ the system enters into the calibration interface. Fig.4-33 Select ― Start‖, the screen shown as the picture on the right appears. Calibrate 0, 3, 12 and 30 in turns. If the calibration success, the calibrated character is grey, other while the calibrated character is black. Fig.4-34 Select ― Start‖, the system starts the total calibration procedure. Select ― ‖ to return to Calibration menu. Regulate the throttle valve to make the flow to 0L/min and then press ― 0‖ button. The system starts 0 L/min calibration. If the 0 L/min calibration success, the interface shown as the picture on the right appears. Regulate the throttle valve to make the flow Fig.4-35 to other values and then press the corresponding button to do other calibrations. 117 If the 0 L/min calibration failure, the interface shown as the picture on the right appears. Press ― 0‖ button to do 0 L/min calibration again. Select ― Start‖, the system starts the total calibration procedure. Fig.4-36 Select ― ‖ to return to Calibration menu. Select ― Start‖, the system starts the total calibration procedure and the screen is shown on the right. Select ― ‖ to return to Calibration menu. Fig.4-37 If all the calibrations of 0, 3, 12, 30 success, the total calibration is successful and the interface shown as the picture on the right will appear. Select ― ‖ to return to Calibration menu. Fig.4-38 118 If one of 0, 3, 12, 30 calibration failure, the total calibration will fail and the interface shown as the picture on the right will appear. Select ― Repeat‖ the system goes back to the flow sensor initialization calibration interface. Fig.4-39 Select ― ‖ to return to Calibration menu. 119 4.3.1.3. Pressure Sensor Set APL valve to 0 Close flow meter Disconnect any hoses from the inspiratory and expiratory ports Fig.4-40 Select ― Calibration‖ -- ― Pressure Sensor‖ to enter the pressure sensor calibration screen. Select ― start‖ to perform flow valve calibration, and select ― ‖ to return to Calibration menu. Fig.4-41 120 Do the procedure according to the screen displayed message and ― Pressure sensor calibration Diagram‖. Then select ― start‖, the screen shown as the picture on the right appears. Fig.4-42 If calibration success, the screen shown as the picture on the right appears Select “ ‖ back to Calibration menu. Fig.4-43 If calibration failure, the screen shown as the picture on the right appears Select ― Repeat‖ to do the flow valve calibration again Select “ ‖ back to Calibration menu. Fig.4-44 121 4.3.1.4. PEEP Valve Set Fresh Gas Flow to 1.0L/min Connect the breathing circuit and connect a 1L bag to Y-piece Push ― O2+‖ to full fill the Bellows Fig.4-45 Select ― Calibration‖ -- ― PEEP valve‖ to enter the PEEP valve calibration screen. Select ― start‖ to perform flow valve calibration, and select ― ‖ to return to Calibration menu. Fig.4-46 122 Do the procedure according to the screen displayed message and ― PEEP valve calibration Diagram‖. Then select ― start‖, the screen shown as the picture on the right appears. Fig.4-47 If calibration success, the screen shown as the picture on the right appears Select “ ‖ back to Calibration menu. Fig.4-48 If calibration failure, the screen shown as the picture on the right appears Select ― Repeat‖ to do the flow valve calibration again Select “ ‖ back to Calibration menu. Fig.4-49 123 4.3.1.5. Cal Data Select ― Calibration‖ -- ― Cal Data‖ to enter the Cal Data screen. The screen has five items; each item has some corresponding monitoring values which are just for reference. Select ― ‖ to return to Calibration menu. Fig.4-50 4.3.2. SW Update Select ― Service Mode‖ -- ―SW Update‖ to open the interface on the right. Do according to the promote message on the screen. The ― Start‖ button is invalid. Select ― ‖ to return to Service Mode menu. 124 Fig.4-51 Insert the USB in which has the newest software of ADS II Anesthesia Workstation. After connecting USB to machine the display shows as the right picture. Select ― Start‖ to start SW Update Fig.4-52 procedure, Select ― ‖ to close the sub-menu After selecting ― Start‖ the software update interface covers the full screen. The server can update all software. When doing the update do not break the update process. Select ― Update All Components‖ to repeat the update if the update process is broken abnormally. Fig.4-53 The interface displays ― Success!‖ or ― Failure!‖ in the running bar area after updating. The success color is green while the failure is red. Fig.4-54 125 The message ― Re-cycle to implement the update software‖ appears after updating software. The server should re-cycle the machine to perform the GUI in the Update Software. Fig.4-55 126 4.3.3. Optional Functions Select ― Service Mode‖ -- ―O ptional Function‖ to open the interface on the right. ― ‖ indicates that machine has this function. ― ‖ indicates that machine has no this function. Fig.4-56 Choose the needed function and press ― Activate function‖ to achieve the needed functions. Select ― ‖ to return to Service Mode menu. Press ― Activate function‖ to open the interface on the right. Remember the ID NO.: NEGD-I68Q-JTNL-GTID-RV produced by the machine according to its current configuration. Fig.4-57 Send the ID NO. and required function to manufacturer to ask for the register number. 127 Enter the register number from Function Configuration Software into the white blank on the machine interface shown as right picture. Press‖ ‖, if the register number is correct, the interface as the right picture appears. Fig.4-59 The message ― Application new configure after reboot‖ appears on the screen. If the register number is wrong, the interface as the right picture appears. The message ― The password is incorrect‖ appears on the screen. Fig.4-60 128 4.3.4. Optional Language Optional Language sub-menu has several language, for example, ― English‖ Before each language there is a □,Click on ― □‖to select the language or not. Shows the language has been Fig.4-61 selected. Select ― Save‖ to choose the needed language. Select “ ‖ back to Service Mode menu. Fig.4-62 129 4.3.5. Setup Select ― Setup‖ to enter the setup screen. There are three items in the setup screen, including Demo ,Flow Meters and Gas Standard Demo only has an ― OFF‖ menu. Fig.4-64 Flow Meters have three items, US, CE and CN. The gray spot following the item shows the current type of flow meter. Fig.4-65 Gas Standard has two items, ATP and BTPS. The gray spot following the item shows the current type of gas standard. Fig.4-66 130 5. Troubleshooting 5.1. General Troubleshooting The following table shows symptoms and corrective actions for problems when troubleshooting ADS II Anesthesia Workstation. The information given indicates failures during startup and runtime. 131 Trouble Occurrence Phase Cause Analysis Solutions 1. The power supply switch is turned to ON, 1.Turn the power supply switch to OFF and power on again immediately after be turned to OFF, which after waiting for 1~2seconds. makes the time too short for the BDU control board power to reboot. BDU Communication FAIL Startup test 2. The data wire is disconnected or 2. Check whether the data wire (signal wire at backside of damaged. display) is disconnected or is damaged. 3. The MCB is defective. 3. Check whether D10, D11 and D12 on MCB are flashing and D8 is lighting, if not, there is something wrong with MCB. Replace the MCB and perform each item of calibration and startup test again. 4. MCB crashes or resets. 132 4. Turn off the power supply and power on again. Trouble Occurrence Phase Cause Analysis Solutions 1. The power supply switch was turned ON, 1. Turn the power supply switch to OFF, wait 1~2 seconds, and OFF quickly. then power on again. 2. GUI, BDU and Keyboard are incompatible. 2. Update software version. Enter SERVICE manual to check out the real software version. If the version is 00.00, turn the power supply switch to OFF, and power on again. Software Version FAIL 3. The data wire is disconnected or 3. Check whether the data wire (signal wire at backside of damaged. display) is disconnected or is damaged. 4. MCB is defective. 4. Check whether D10, D11 and D12 on MCB are flashing and Startup test D8 is lighting, if not, there is something wrong with MCB. Replace the MCB and perform each item of calibration and startup test again. 5. The keyboard board is defective. 5. Check whether keyboard indicator is flashing when keyboard software is not suited to machine, There is something wrong with keyboard if indicator is not flashing. Replace the user interface assembly. 6. PC104 board is defective. 6. If all the software communication fail while keyboard and MCB works well; Replace PC104 board with the compatible software version. 133 Trouble BDU EEPROM Data FAIL Occurrence Phase Startup test Cause Analysis Solutions 1. Data stored in EEPROM on MCB is lost 1. Startup, and then perform each item of the calibration and (checksum error). startup test again. 2. MCB is defective. 2. Replace MCB. 1. The wire that connects to the vent/manual 1. Check whether the connection wire of the vent/manual valve is valve is disconnected or is damaged. disconnected or is damaged. 2. The vent/manual solenoid valve is damaged. 2. Measure the resistance of solenoid valve, if the resistance is not within the range of 200~400Ω, the solenoid valve is fail. Vent/Manual Valve Failure Startup test Replace the vent/manual solenoid valve. 3. MCB, interface board power supply cable 3. Check whether the connection of cable is correct with a failure Multimeter. Or measure the voltage of MCB yellow cable to earth. If the voltage is not beyond 22-25V, the cable is defective. 4. MCB is defective 4. Check the connection cable and replace MCB. Then perform each item of the calibration and startup tests again. Keyboard Communication Sensor FAIL 134 1. Check whether keyboard COM1 is correctly connected. 2. The keyboard board is defective. 2. Replace keyboard. 1. The connection wire of the MCB is 1. Check whether the connection wire of the MCB is disconnected or is damaged. disconnected or damaged. 2. The connection of the MCB is defective. 2. Check the power supply. Replace the MCB. Startup test FAIL Pressure 1. The data wire is disconnected or is damaged. Startup test Trouble Occurrence Phase Cause Analysis Solutions 3. The tubing kinked or occluded. 3. Check the tubing for kinks and remove any occlusions. 135 Trouble O2 Sensor FAIL Occurrence Phase Startup test Cause Analysis Solutions 1. The O2 concentration is below 16%. 1. Increase O2 concentration. 2. The O2 sensor is out of range. 2. Replace the O2 sensor. 3. The main unit O2 sensor cable is 3. Check whether the main unit O2 sensor cable id disconnected or damaged. disconnected or damaged. 4. The MCB is defective. 4. Replace the MCB, and then perform each item of the calibration and startup test again. PEEP Valve FAIL 5. Weeping occurs on O2 sensor. 5. Replace the O2 sensor. 6. The O2 sensor is not compatible with the 6. Replace the MCB. And then perform each item of the MCB. calibration and startup test again. 1. The connection wire of the inspiration 1. Check whether the PEEP valve is disconnected or valve is disconnected or damaged. damaged. 2. The PEEP valve is defective. 2. Replace the PEEP valve. 3. The MCB is defective. 3. Replace the MCB and then perform each item of the Startup test calibration and startup test again. 4. The PEEP valve calibration fails. 4. Clean the check valves inside the Breathing System, and then perform the flow sensor calibration and flow valve calibration. 5. The PEEP valve is blocked. 136 5. Clean or replace the PEEP valve. Trouble Inspiration Valve FAIL Occurrence Phase Startup test Cause Analysis Solutions 1. The connection wire of the inspiration valve 1. Check whether the inspiration valve s disconnected or is disconnected or damaged. damaged. 2. The inspiration valve is defective. 2. Replace the inspiration valve. 3. The MCB is defective. 3. Replace the MCB and then perform each item of the calibration and startup test again. 1. The flow sensor does not reach the 1. Reinstall the absorber canister. minimum value. Flow Sensor FAIL Startup test 2. The AD value of flow sensor is incorrect. 2. Check whether the flow sensor is correctly connected. 3 The flow meter leaks. 3. Replace the flow meter. 4. MCB is defective 4. Replace MCB and then perform each item of the calibration and startup test again. 137 Trouble Alarm Speaker FAIL Occurrence Phase Cause Analysis Solutions 1. The connection wire to the speaker is 1. Check whether the connection wire of the speaker is disconnected or damaged. disconnected or damaged. 2. The speaker assembly is not connected. 2. The communication board is not pretty welded, weld the communication board again. Startup test 4. The loop of the speaker is turned off. 4. Replace the speaker. 5. The communication board is defective. 5. Replace the communication board, and confirm the software version is compatible with the new one. 1. The pneumatic tube is disconnected. 1. Check whether the pneumatic tube is connected or damaged. 2. Gas cannot flow fluently in the Breathing 2. Adjust or replace the Breathing System. During manual System. leak test, the 3. The bellows moves downward. There are 3. Reduce the pressure on some ports, such as CGO port and leaks happened on some ports in the 1.75 pressure regulator. bellows moves Startup test when it Breathing System. The pressure of 1.75bar shouldn’t. pressure regulator is so high that leaks occur. 4. The bellows moves upward, the safety 4. Replace the safety valve. valve leaks. In leakage detection, the 138 1. The pressure gauge is defective. Startup test 1. Replace the pressure gauge. Trouble Occurrence Phase Cause Analysis Solutions APL valve 2. The Breathing System leaks in manual 2. Replace the APL valve or replace the Breathing System. detection mode. pressure displayed on the pressure gauge does not stay within 25~35cmH2O. 139 Trouble Occurrence Phase safety valve Solutions 1. The proportional valve on the airway 1. Calibrate the inspiration valve again. module fails. In leakage detection, Cause Analysis Startup test detection fails. 2. The safety valve in the airway module 2. Replace the safety valve or the airway module. fails. 3. The local altitude is above 4000 meters. 3. Replace the application software and pressure sensor board to adapt to the local altitude. In leakage 1. Check the connection on the tubing. 2. The absorber canister is not correctly 2. Check the installation of the absorber canister. connected. detection, the leakage 1. The tubing connection is not tight. Startup test volume is 400mL~1L. 3. The pressure gauge or oxygen sensor on 3. Check the installation of the pressure gauge or oxygen the circuit is not installed tightly. sensor on circuit. 4. There is a leakage in the fresh gas supply. 4. Check the fresh gas supply for leakage. 5. The bellows moves upward or downward. 5. Reduce the output pressure on circuit, or replace the safety valve. In leakage detection, the leakage volume is larger than 1L. 140 Startup test 1. The tubing connection is not tight. 1. Check the connection on the tubing. 2. The absorber canister is not correctly 2. Check the installation of the absorber canister. connected. 3. The pressure gauge or oxygen sensor on 3. Check the installation of the pressure gauge or oxygen the circuit is not installed tightly. sensor on circuit. 4. There is a leakage in the fresh gas supply. 4. Check the fresh gas supply for leakage. Trouble Occurrence Phase Cause Analysis Solutions 5. The gate valve on vaporizer mounting 5. Replace the gate valve. manifold is defective. 1. The Y-fitting is not sealed or the Breathing 1. Check the connection and leakage of respiration tubes. System has leakage. In compliance test, compliance test 2. The flow meter is set incorrectly. 2. Calibrate the flow meter again. 3. The respiration tubes are too long. 3. The respiration tubes cannot be too long, replace the long tubes. Startup test 4. The calibration of pressure sensor is fails. 4. Calibrate the pressure sensor again. inaccurate 5. The airway module is defective. 5. Replace the airway module. 6. The gas module is defective. 6. Replace the gas module. 1. Gas supply is not connected. 1. Check whether gas supply is connected or is switched on. Observe the gas supply pressure gauge to find whether the pressure is higher than 0.28Kpa. O2 supply fails. Startup test /Runtime 2. The gas supply sensor connection cable is 2. Replace the gas supply cable. damaged. 3. The MCB is defective. 3. Connect gas supply and make the pressure is higher than 28Kpa. Then test the voltage of T63 and T58, if the valve are lower than 0.83V, MCB is defective. Replace the MCB, and perform each item of calibration and startup. 141 Trouble Occurrence Phase AC Outlets are Startup test non functional /Runtime 142 Cause Analysis 1. AC outlets are not connected. 2. A fuse is tripped. Solutions 1. Check whether AC outlets are connected correctly. 2. Replace the fuse. Trouble Occurrence Phase Cause Analysis Solutions 1. Battery capacity is low. 1. Connect the battery to AC power. Make sure the battery is fully discharged and charged every 3 months. Low Battery Runtime icon always charging status. 2. Replace the battery. 3. The connection cables or power board are 3. Check the connection cables or replace the power defective. board. 1. Battery capacity is low. 1. Connect the battery to AC power. Make sure the battery is fully discharged and charged every 3 months. The battery shows 2. The battery is not functional. Runtime 2. The connection cable of battery is not 2. Check whether the battery connection cable is not connected or damaged. connected or damaged. 3. The battery is not functional. 3. Replace the battery. 4. The power board is defective or the 4. Replace the power board. surrounding environment is too high. 5. The cables on the power board are defective. 143 5. Reconnect the cables correctly. Trouble Occurrence Phase Cause Analysis Solutions 1. Mains outlet is not connected correctly. 1. Check whether mains outlet is connected correctly. 2. The connection cables of the Breathing 2. Replace the connection cables of the Breathing System. System are defective. The heating of the Breathing 3. The heating control board is defective. 3. Replace the heating control board or the output cable. 4. The circuit inside the breathing system is 4. Replace the breathing system. Runtime System fails. defective. 5. The light on the heating control board 5. Replace the heating control board. cannot be lighted or is always light. The O2 reading is out of Runtime tolerance. The pressure reading is out Runtime of tolerance. PEEP reading is out of tolerance. 144 Runtime 1. The O2 sensor calibration is incorrect, or the O2 sensor is defective. 1. The pressure sensor calibration is incorrect. 1. Calibrate the O2 sensor again or replace the O2 sensor. 1. Calibrate the pressure sensor again. 1. PEEP valve calibration is incorrect. 1. Calibrate PEEP valve again. 2. Pressure sensor calibration is incorrect. 2. Calibrate the pressure sensor again. 3. PEEP value is above the normal level. 3. Calibrate the PEEP valve again. 4. PEEP valve is not tightly connected. 4. Tighten the screw at the bottom of PEEP valve. Trouble Occurrence Phase Cause Analysis Solutions 1. The compliance test isn't accurate after 1. Perform the compliance test again. start-up. 2. The supply gas pressure is too low, so the 2. Advance the supply gas pressure. VT is inaccurate. 3. The inspiratory VT is too large or the 3. Examine the check valve for one direction character, clean expiratory VT is too small; The disk in check the check valve disk. becomes sticky, cleaning is needed. The Vt reading is out of tolerance. Runtime 4. The bellows does not move steadily. 3. Heating the bellows or replace the bellows. 5. The inspiratory VT is too small or the 5. Replace or reconnect the pneumatic hose, settle the expiratory VT is too large; When the airway pipeline to avoid it blocked; replacing O-ring of the connector to pressure is 0 and 30cmH2O, the value of avoid the leakage. Insp. /Exp. sensors in engineer mode AD monitoring is far away from 0.27V. 6. The Expiratory wave on screen is smaller 6. If the water in the circuit, use MANUAL Mode, block the or disappeared; it means there is some water outlets of circuit, disconnect the mainframe port of pneumatic in the circuit sensor part or in the mainframe hose. Press the O2 flush valve to blow the water out; If the pipeline. water is in the pipeline, use injector assembly to fix this. 7. The VT is inaccurate. 7. Clean the block in the Insp. /Exp. Airway. 8. The calibration of flow sensor is 8. Recalibrate the flow sensor again. inaccurate. 145 9. The calibration of pressure sensor is 9. Recalibrate the flow sensor again. inaccurate. 10. The calibration of inspiratory valve is 10. Recalibrate the inspiratory valve again. inaccurate. 11. MCB is defective.(No flow rate wave) 1. The flow of O2 flush is below the maximum O2 flush is defective. Runtime value, CGO assembly is inaccurate. 2. The O2 flush button cannot return to the normal position. 146 11. Replace MCB. 1. Replace CGO assembly. 2. Replace the O2 flush button. Trouble Occurrence Phase Cause Analysis Solutions 1. The power switch or the connection cable is 1. Replace the power switch or the connection defective. cable. non-functional. 2. The communication board is defective. 2. Replace the communication board. All or some of the 1. The key board is defective. 1. Replace the key board. The power switch on the main unit is keys are All All non-functional. The encoder is non-responsive. cable is defective. 1. The encoder is defective. All All non-functional. light is non-functional. 2. The communication board or COM 1 connection All 2. Check and replace the communication board. 1. The work light circuit board or the cable is 1. Replace the work light circuit board or check defective. the wire connection. 2. The flow meter drive backlight is overloaded, which leads to trigger protection. The flow meter 2. Check and replace the communication board. 1. Replace the encoder. cable is defective. All or some of the work lights are 2. The communication board or COM 1 connection 2. Decrease the flow meter backlight overload. 3. The work light switch is defective. 3. Replace the work light switch. 1. The power supply to the light is defective. 1. Replace the power supply to the light. 2. The foil of light is defective. 2. Replace the foil of light. 3. The inverter is defective. 3. Replace the inverter. 4. The flow meter light is still light after power off. 147 4. Replace the power board or replace the communication board. Trouble The flow meter is defective. Occurrence Phase Cause Analysis Solutions 1. The maximum value of flow meter is far too low. 1. Adjust the throttle. 2. The flow meter leaks. 2. Replace the flow meter. 3. The ratio of O2 and N2O is inaccurate. All is non-functional. The display screen All All is a solid color. Calibration fails. 148 All replace the flow meter. 4. The color of the flow meter back light is reversed. 4. Rotate the back light board. 5. The label of the rotation knob is damaged. 5. Replace the knob label. 6. There is basic flow in the flow meter. The Aux. AC outlet 3. Adjust the proportional gear, adjust pin valve or 6. Replace the O2 gas inlet, or adjust the O2 flow to 0. 1. The fuse is damaged. 1. Replace the fuse. 1. The GUI program has crashed. 1. Reboot the system. 2. The signal cable is disconnected. 2. Check the signal cable. 3. PC104, back light power, communication board 3. Check and replace PC104, back light power, or inverter is defective. communication board or inverter. 4. The display screen is damaged. 4. Replace the display screen. 5. The missing or incorrect of CMOS setting data 5. Recover CMOS default setting by short-circuit leads to main board inactivated. jumper JBAT1. 6. The connection cable of display screen is 6. Replace the connection cable of the display defective. screen. 1. The flow valve calibration does not pass. 1. Power off and power on, and then calibrate again, Trouble Occurrence Phase Cause Analysis Solutions or replace the gas module. 2. Prolong the silicone tube connecting to Insp. 2. AD difference is too large. Ventilation Mode test fails. All /Exp. ports. 3. The flow valve cannot be calibrated. 3. Replace MCB. 1. Ventilation test under VCV adult mode fails. 1. Clean the check valve. 149 Trouble Occurrence Phase There is noise coming out of the All machine. Cause Analysis Solutions 1. Noise arises as increasing AIR flow under VCV 1. Adjust the spring on the AIR port of the gas mode. inlet. 2. Noise arises as starting up the machine. 2. Replace the PEEP valve or flow valve. 3. Noise of high pressure gas supply leads to low 3. Replace the reducing valve of high-pressure pressure alarm. O2. 4. Noise arises at the N2O gas inlet. 4. Replace the N2O cutoff-valve. 5. Noise arises as the bellows moving downside under PCM mode. 5. Replace the PEEP valve. Other setting parameters are incorrect. 150 All 1. PTARGET is inaccurate in PCV mode. 1. Adjust the upper limit of pressure alarm. Trouble Occurrence Phase Cause Analysis Solutions 1. .Rotate the knob, if the screen works normally, 1. Panel is defective the panel is defective; Replace the panel. Panel is defective, 2. Rotate the knob, and there is no action on the including MUTE screen; Check whether PC104-Communication and All 2. Communication Board is defective. cable is connected well with a Multimeter, if the MANUAL/AUTO cable works well, the communication board is key defective. Replace communication board. 3. Cable connected to PC104 and communication Board is defective 3. Replace communication cable Speaker is invalid.(when 1. Remove the speaker assembly from Isolation alarm appears, the Board, measure the resistance between two alarm icon displayed on the screen while alarm connectors of speaker assembly, if the resistance 1. Speaker is defective value is not within the range of 6-10Ω, the speaker assembly is defective. Replace speaker All sound can’t be assembly, heard) 2. Communication Board- Isolation Board cable is disconnected or damaged. 2. Do the above operation, if the resistance value is within the range of 6-10Ω, power off machine and connect speaker assembly to Isolation Board, 151 Test the connectivity of T7 and T8 on communication board with Multimeter, if there is no connectivity between T7 and T8, the Communication Board- Isolation Board cable is defective. Replace Communication Board- Isolation Board cable 3. Do the above operation if there is connectivity 3. Communication Board is defective between T7 and T8, Communication Board is defective and replace it. 152 Trouble Occurrence Phase Cause Analysis Solutions 1. .Rotate the knob, if the screen works normally, 1. Panel is defective the panel is defective; Replace the panel. Panel is defective, 2. Rotate the knob, and there is no action on the including MUTE screen; Check whether PC104-Communication and All 2. Communication Board is defective. cable is connected well with a Multimeter, if the MANUAL/AUTO cable works well, the communication board is key defective. Replace communication board. 3. Cable connected to PC104 and communication Board is defective 3. Replace communication cable 1. Check whether the breathing system heating cable is disconnected or damaged with a Multimeter. 2. Remove breathing system cable from machine, Breathing system heating function is invalid All 1. The breathing system heating cable is connect AC power, and power on, check whether disconnected from heater cable socket. DS7 indicator of PSB is flashing or not. If not, the 2. PSB is defective. PSB is defective. 3. Breathing system heating assembly is defective. 3. The breathing system heating cable and PSB work normally, connect heating cable to machine, if DS7 indicator of PSB is still flashing or no longer alight, breathing system heating assembly is defective. 153 Trouble Occurrence Phase Cause Analysis Solutions 1. Close E-flowmeter, if there is gas flow at CGO outlet, E-flowmeter is leaking. Replace E-flowmeter. 1. E-flowmeter leaks E-flowmeter is defective 2. If E-flowmeter has no leakage and the displayed digit has no change when rotating flow All 2. E- flowmeter Board is defective. regulator clockwise, E- flowmeter board is defective. Replace E- flowmeter board. 3. Flow sensor is defective 3. If E-flowmeter has no leakage and the displayed digit increases when rotating flow regulator clockwise, flow sensor is defective. Replace flow sensor. 154 Trouble Occurrence Phase Cause Analysis Solutions 1. Measure the resistance of MANUAL/AUTO valve at its connector. If the resistance is not within the range of 200-400Ω, the connector of valve is disconnected or MANUAL/AUTO valve is defective. Reconnect valve cable or replace MANUAL/AUTO valve. 1. MANUAL/AUTO valve cable is loose. MANUAL/AUTO valve fails Startup test 2. MCB-Interface Board cable is defective. 3.MCB is defective, 2. Power on, and measure the voltage between T51 and T52 of PSB. If the voltage is not within the range of 22-25V, MCB-Interface Board cable is defective, replace MCB-Interface Board cable If the voltage is within the range of 22-25V, MCB is defective. Replace MCB. 155 Trouble Occurrence Phase Cause Analysis Solutions 1. Measure the resistance of expiratory valve at its connector. If the resistance is not within the range of 2-5Ω, the connector of valve is disconnected or expiratory valve is defective. Reconnect valve cable or replace expiratory valve. 2. Test the connectivity between connector and cover of expiratory 1. PSB is defective. valve with a Multimeter. If there is a good connectivity, the expiratory valve is defective, replace expiratory valve. 2. MCB is defective. Expiratory valve fails Startup test 3. Expiratory valve connector is loose. 3. Remove MCB-Interface Board signal cable from the machine. Power on, and measure the voltage between T7 and T16 of PSB. If the voltage is not within the range of 3-4.5V, PSB is defective, replace PSB. 4. Expiratory valve is defective. If the voltage is within the range of 3-4.5V, measure the voltage between T54 and T55 of MCB, If the voltage is not within the range of 3-4.5V, MCB-Interface Board power supply cable is defective. Replace MCB-Interface Board power supply cable 4. If all the above malfunctions are not existed, MCB is defective, replace MCB. 156 Trouble Occurrence Phase Cause Analysis Solutions 1. Measure the resistance of Inspiratory valve at its connector. If the resistance is not within the range of 70-80Ω, the connector of valve is disconnected. Reconnect valve cable. 1. PSB is defective. 2. MCB is defective. Inspiratory valve fails Startup test 2. Remove MCB-Interface Board signal cable from the machine. Power on, and measure the voltage between T5 and T17 of PSB. If the voltage is not within the range of 11-13V, PSB is defective, replace PSB. 3. Inspiratory valve connector is loose. If the voltage is within the range of 11-13V, measure the voltage between T56 and Ground of MCB, If the voltage is not within the range of 11-13V, MCB-Interface Board power supply cable is defective. Replace MCB-Interface Board power supply cable 3. If all the above malfunctions are not existed, MCB is defective, replace MCB. 157 Trouble Occurrence Phase Cause Analysis Solutions 1. Remove gas tube from pressure sensor, Measure the voltage between T42 and AGND of MCB, if the voltage is not 0.5V, regulate VR1 until T42 voltage gets to 0.5V. If the voltage can’t get to 0.5V or has no changes when regulating VR1, MCB is defective and replace MCB. 1. Ambient pressure board is Pressure sensor fails defective. Startup test 2. MCB is defective. 2. Skip startup test and enter into Manual Test interface, push ― O2+‖ button to make the airway pressure up to 30cmH2O, measure the voltage between T42 and AGND of MCB with a Multimeter. If the voltage is not within the range of 1.2-1.4V, MCB is defective and replace it. If the voltage is within the range of 1.2-1.4V, power on the machine again, and pressure sensor still fails after startup test, ambient pressure board is defective. Replace ambient pressure board. 158 Trouble Occurrence Phase Cause Analysis Solutions 1. Measure the voltage of pin of J4 to ground; 1 to Ground: 11-13V; 2 to Ground: 11-13V 3 and 4 have connectivity to ground. 1. LED is defective. 5 to Ground: 4-5V; 6 to Ground: 2-5V; 2. Backlight is defective. Black Screen All 3. PC104 is defective 4. Communication board is defective One of above condition can’t be satisfied, communication board is defective, replace the communication board. 2. All the above conditions can be satisfied, disconnect LED cable from PC104. If the screen is black, backlight is defective, replace the backlight. If the screen is white, the backlight is normal, LED or PC104 is defective, replace the invalid part. MCB. 159 160 5.2. General Troubleshooting Guide Problem 1 Something wrong with Startup Phenomenon: The display, top light and spotlight can’t light up while the E-flowmeter is normal. Action: The phenomenon above shows that there is something wrong with 24V power supply while other power supplies are normal. 1. Connect the AC power supply, rotate the switch to ― ON‖. 2. Open the lower panel of machine. 3. Check the indicating light Z2 (PWBUS STATE) on the PSB. The position of Z2 is shown as the picture bellow. If Z2 (DS2) indicator doesn’t light up, the PSB is with malfunction If Z2 (DS2) indicator lights up, there is something wrong with the cable connected to interface board, the cable is shown as the follow picture. 161 162 Problem 2 Something wrong with Startup when using the battery supply only Phenomenon Disconnect AC power supply to use the battery only, and rotate the switch to ― ON‖ to find that the machine can’t startup. Action: 1. Rotate main switch to ― OFF‖, Disconnect the AC power. 2. Remove the lower rear panel of the machine. 3. Disconnect the cable connected to the battery. 4. Test the voltage between the middle pin and upper pin; then the voltage between the lower and the middle pin; Shown as the following picture. 163 If both the two voltage are over 24V, that’s to say PSB is with a malfunction. If one or two voltage is less than 24V, that’s to say cable connected to the battery is with a malfunction. Problem 3 Automatic Leak Test failure--- Startup Self-test Phenomenon: The automatic leak test fails during the startup self-test. Action: 1. Observe the airway pressure gauge value during Automatic Leak Test. The normal airway pressure values changing during Automatic Leak Test: First, the airway pressure ascends to 80cmH2O, and then quickly descends to 50 cmH2O, and then descends to 30 cmH2O slowly and stays at 30 cmH2O for a while. 2. If the airway pressure ascends slowly or even doesn’t ascend, the flow valve needs calibration. 3. If the airway pressure descends from 30 cmH2O without staying, that to say the machine has a leakage. Problem 4 Flow valve calibration failure Phenomenon: The flow valve calibration in the Service Mode fails. Action: 1. Make sure the gas supply pressure is normal. 2. Make sure flowmeter is fully closed; the drive gas tube, CGO, absorber canister O2 sensor and airway pressure gauge are all well connected or installed. 3. Make sure the bellows and Insp./Exp. valve disks are removed and the bellows cover and Insp./Exp. Valve covers are installed. 4. 164 Seal the Expiratory port. If the flow valve calibration failure is displayed quickly after performing the calibration, at the same time, the threshold voltage and the maximum flow are very small, recalibrate the flow sensor. If the flow valve calibration failure is after a while, and the maximum flow rate is bellow 90L/min, replace the pressure regulator. Problem 5 Unsteady tidal volume (Vt) Phenomenon: It needs 5 periods to get to the set value after setting Vt value, and the Vt always changes in the ventilating process. Action: Enter into Service Mode and recalibrate the flow valve. Problem 6 High gas supply pressure Phenomenon: High O2 supply pressure over 0.5MPa in hospital may lead to the unsteady tidal volume. Action: Recalibrate flow valve if the O2 supply pressure is over 0.5MPa. 165 Problem 7 Detect the machine leakage Phenomenon: The machine has one or some leakage, the leakage place should be found. Action: 1. First do the manual leak test. Set to ― STANDBY‖ mode. Seal Insp. /Exp. Ports and bag arm port. Rotate the flowmeter knob to make the airway pressure up to 30cmH2O. Close the flowmeter, observe the airway pressure value to find if the value descends or not. 2. Second do the automatic leak test. Set to ― STANDBY‖ mode, open the ― Check‖ sub-menu and to perform the automatic leak test. If leakage is found both in manual and automatic leak test progress: Check absorber canister, O2 sensor interface, airway pressure gauge and Insp. /Exp. Ports valve covers. If leakage is only found in manual leak test process Check the APL valve and connector of the bag arm. If leakage is only found in automatic leak test process Check the bellows, bellows cover, U-shape sealing ring and drive gas tube. 166 Problem 8 Bellows move downwards abnormally Phenomenon: In the progress of automatic leak test during startup, the bellows falls rather than stays at the top of bellows cover after the bellows is full filled with gas when pressing ― O2+‖. The bellows falls abnormally by accident during normal ventilation, at the same time the leak test result is normal. Action: The phenomenon above indicates that there is something wrong with the bellows check valve. Replace the bellows check valve: 1. Remove the bellows cover, bellows and disconnect breathing system heating line, drive gas tube and corrugated hose. 2. Remove four M4 screws of breathing system shown as the follow picture. NOTE: The four screws are in the four deep holes. Don’t remove the breathing system from machine when disassembly breathing system. First, loose the screws and then remove them when disassembly. 167 3. Open the bellows fixing plate shown as the following pictures. 4. Replace the bellows check valve. NOTE: Insert the screwdriver into the check valve and then rotate to remove the check valve, don’t pull it up directly, shown as the following pictures. NOTE: Daub a little silica gel on the O-ring surface and push into the slot softly when installing bellows check valve. Install the bellows fixing plate 1. Put the expiratory valve into the bellows fixing board. 2. Make sure there are 5 O-rings and every surface of O-rings is glazed without any damage. 3. Put all the screws into the breathing system holes and the tighten them. 168 Expiratory valve 4. Connect drive gas tube, breathing system heating cable and corrugated hose. 5. Install the bellows and bellows cover. 6. Perform the leak test. Problem 9 Absorber canister ascend-descend assembly got stuck Phenomenon: Absorber canister ascend-descend assembly got stuck and can’t descend. Action: Absorber canister lock assembly needs to be replaced. 1. Open the lock assembly and remove absorber canister. 2. Disconnect corrugated hose and chain, and then remove ascend-descend assembly, shown as the following pictures. 3. Loose and remove the two M4 screws shown as the following picture and replace the lock assembly. 169 4. Install ascend-descend assembly 5. Connect corrugate hose and chain 6. Install the absorber canister and perform the leak test. Problem 10 Leakage from loose breathing system lock assembly Phenomenon: The loose breathing system lock assembly leads to the leakage from absorber canister. Action: Check the two screws on the suspender and two screws on the lock assembly to make sure whether the screws are loose or not, if so, tighten the screws and check the leakage; if not regulate the lock assembly again. 1. Remove the absorber canister, corrugated hose and ascend-descend assembly 2. Remove the two M4 screws on the lock assembly and then remove the lock assembly. 3. Loosen the screws on the suspender, rotate to regulate the suspender, make the length of the suspender 284mm~284.5mm, and then tighten the screws. 170 4. Reinstall the lock assembly, ascend-descend assembly, absorber canister and corrugated hose. 5. Perform leakage test. 171 6. Maintenance Information 6.1. Maintenance introduction This chapter of the Service Manual provides the necessary technical information to perform repairs to the system. The most important prerequisites for effective troubleshooting are a thorough understanding of the system's functions, as well as understanding its principles of operation. Warning : Whenever using anesthetic gases, nitrous oxide, oxygen, or any hospital gas always follow the appropriate agent evacuation/collection procedures. Use the hospital gas evacuation system. Caution This device uses high pressure compressed gas. When attaching or disconnecting backup gas cylinders, the user should always turn the cylinder valves slowly. Use ADS II Anesthesia Workstation flow meters to bleed down the pressure, watching the cylinder gauge indicate the depleting cylinder pressure, before disconnecting the cylinder from the yoke. Always open and close cylinder valves fully. Caution This device operates using compressed gas at high pressures from the hospital central supply. When connecting gas supply lines attach the hose connection to the machine before connecting the quick disconnect fitting to the hospital source. Disconnect the supply hose from the hospital source connection prior to disconnecting it from ADS II Anesthesia Workstation gas connection fittings. 6.2. Maintenance Guidelines Identify the problem—Due to the wide variety of potential symptoms, certain problems may be more subtle than others. Following the guidelines of the tests will help determine the problem, if one exists. Avoid shorting component leads together during repair procedures; it can be tempting to make a quick series of measurements. Always turn the power off before connecting and disconnecting the test leads and probes. The accidental shorting of leads can easily stress the components and cause a second failure (aside from the safety risk). Use the proper equipment—the equipment listed in "Special Tools Required" is suggested to fulfill a wide range of troubleshooting requirements. It is imperative to use the designated equipment in order to ensure proper results of any and all test procedures. 172 Clean up the repair area—after any repair, clean off the repair area. 6.3. Repair backup parts list No. Part No. Part Name Qty. Replacing Field Factory Period Repair Repair Remark Top light assembly 1 122003763 2 122003764 3 130007957 Top light backlight Asm. Top Light Switch Asm. Top Light Penetrable Board 1 Yes 1 Yes 1 Yes 1 Yes Screen assembly 5 210003389 8 210002616 9 122006839 10 210002615 Touch Screen Asm. PC104 Communication 1 As needed Yes 1 Yes Screen Controller 1 Yes E-flowmeter Asm.. 1 Yes 1 Yes 1 Yes board Controlled component Controlled component E-flowmeter Asm.. 11 122006793 Important component Auxiliary flowmeter assembly Auxiliary 12 130007947 Flowmeter Penetrable Board 13 122003737 Auxiliary Flowmeter Asm. Gas inlet module 173 No. Part No. 14 122003754 15 130007975 16 122003753 17 130007974 18 122003752 19 130007973 20 122005527 Part Name N2O Input Integrated Asm. N2O Input Connector AIR Input Integrated Asm. AIR Input Connector O2 Input Integrated Asm. O2 Input Connector Gas Supply Pressure Board Qty. Replacing Field Factory Period Repair Repair 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 2 Yes Drive Gas 21 122003757 Pressure-Relief Valve Asm. Single-Output 22 122003756 Pressure-Relief Valve Asm. Double-Output 23 122003755 Pressure-Relief Valve Asm. 24 130003930 Filter 3 3 years Pressure Gauge assembly High Pressure 25 122003071 N2O Gauge 1 Yes 1 Yes 1 Yes 6 Yes Assembly 26 122003070 27 122003069 28 130008025 174 High Pressure AIR Gauge Assembly High Pressure O2 Gauge Assembly Pressure Gauge Remark No. Part No. Part Name Qty. Replacing Field Factory Period Repair Repair Remark Bracket 29 122005495 30 122005496 31 122005497 Low Pressure N2O Gauge Asm. Low Pressure AIR Gauge Asm. Low Pressure O2 Gauge Asm. 1 Yes 1 Yes 1 Yes Knob assembly 32 122002061 Encoder Asm. 1 Yes 33 130000336 Knob 1 Yes Switch 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes Switch Assembly 34 210001743 35 210001744 Switch End Module, 1NO Outlet module 36 122003760 Outlet Module Asm. Interface board- 37 122006835 breathing system heating cable of outputting Power supply assembly 38 122006797 39 122006798 40 41 AC Power Asm. (E) AC Power Asm. (C) AC Power Asm. 122006799 (U) 122006840 Isolation Board Controlled 175 No. Part No. Part Name Qty. Replacing Field Factory Period Repair Repair Remark component 42 122006833 Speaker Asm. 1 Yes 43 210003583 Fuse 250V/10A 2 Yes 44 210003583 Fuse 250V/2A 8 Yes O2 Sensor assembly 45 210001975 O2 Sensor 1 1 Year Yes Five-Core Shield 46 210003053 Cable LE.BA106.ABE-16 1 Yes 898 47 130008105 304000101 O2 Sensor 1 Year Connector Yes O-shape silica gel sealing Cylinder gas inlet assembly N2O pressure 240000542 regulator 1 Assembly Air pressure 240000543 regulator 1 Assembly O2 pressure 240000541 regulator 1 Assembly Pneumatic Box Assembly 49 122006806 50 122005725 51 52 176 Pneumatic Box 1 Yes IP Valve Asm. 1 Yes 122006871 Gas Module Asm. 1 Yes 122000834 Safety Valve 1 Asm. Yes No. Part No. 53 240000097 54 122006848 55 240000129 56 122006838 57 122006836 58 210003567 59 122005710 Part Name Solenoid Valve AMISCO 24V Ambient pressure board Proportional valve 1350-5083 Main Control board PSB Switching power supply Battery Asm (OT-4). Qty. Replacing Field Factory Period Repair Repair 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 3 Years Remark Controlled component Controlled component Controlled component Controlled component Controlled component Controlled component Controlled Yes component Breathing System 60 122004128 61 122005509 62 122001761 63 122005511 64 122005512 65 130007762 66 130004102 67 122005513 68 130007763 69 122001737 AC200 Breathing 1 Yes Bag arm Asm. 1 Yes APL Valve 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes 1 Yes System Pressure Gauge Asm. Inspiratory Valve Asm. Inspiratory Valve Cover Valve Disk Expiratory Valve Asm. Expiratory Valve Cover Switch Asm. 1 Important component Yes 177 Part Name Field Factory Period Repair Repair Part No. 70 122005518 71 122005519 72 130004091 U-Type Gasket 1 73 130004086 Bellows Cover 1 74 122005548 Bellows Assembly 1 75 122005521 76 122003782 77 122003068 78 122003216 79 130004092 Corrugated Tube 1 1 Year Yes 80 130006719 Elastic Gasket 2 1 1 Year Yes 81 130004147 Valve Seal Gasket 1 1 Year Yes Expiratory Valve Asm. Bellow Check Valve Asm. O2 Concentration Plug Asm. Ascend-descend Assembly Lock Assembly Absorber Canister Asm. Qty. Replacing No. 1 Yes 1 Yes 3 Years Remark Yes Yes 3 Years Yes 1 Yes 1 Yes 1 Yes 1 Yes Used in O2 82 304000100 O-shape silica gel sealing 18×1.8 1 1 Year Yes concentrati on plug Asm. 83 304000096 O-shape silica gel sealing 9×1.8 Used in 1 1 Year Yes pressure gauge Asm. Used in O-shape silica gel 84 304000102 sealing 22×1.8 inspiratory 1 Yes valve Asm., expiratory valve Asm. 85 178 304000108 O- shape silica gel sealing t 42X1.8 Used in 1 Yes inspiratory valve Asm., No. Part No. Part Name Qty. Replacing Field Factory Period Repair Repair Remark expiratory valve Asm. Other components 86 304000044 Used in O-shape silica gel 1 Year sealing14×2.65 Yes mount Asm. 87 210003051 LED Signal Light 1 Yes 88 122003740 C·G·O Asm. 1 Yes 89 122003739 O2 Flush 1 Yes 90 122003738 1 Yes 91 130011896 Panel(C) 92 130011897 Panel(E) 93 122006843 Interface board 94 122003762 Spotlight Asm. 95 122003761 96 122003741 Auxiliary O2 Supply Asm. Auxiliary Work Table Asm. O2 Sensor Output Asm. vaporizer Controlled component 1 Yes 1 Yes 1 Yes Five core shielded 210003052 cable 1 LM.BA105.ABE 97 130010364 98 122001624 99 122005534 100 130003864 Integrated Silica Tube Host-breathing system Cable Vaporizer Mount(two kettles) Cylinder Bracket Gasket 1 3 Years Yes 1 Yes 1 Yes 3 Yes 179 No. Part No. 101 230000318 180 Part Name Silica gel screwed conduitφ17 Qty. 1 Replacing Field Factory Period Repair Repair 3 Years Yes Remark 6.4. Special Tools Required No. Part No. Name of Tools Quantity 1 --- Slotted Screwdriver (large, medium, 1 for each small) 2 --- Crisscross Screwdriver(large, 1 for each medium, small) 3 --- Inner Hexagon Spanner 1 4 --- Open spanner 1 5 --- Meter Screw driver 1 6 --- TSI 4043E 1 7 --- Multimeter 1 8 130004396 R15 hook spanner 1 9 240000460 TSI sensor of quality and flow 1 10 240000461 SS20 handheld pressure gauge 1 11 230000193 Silica gel corrugated pipe Φ22 1 (1000mm, light Green, standard) 12 230000189 Silica gel corrugated pipe Φ22 2 (600mm, light Green, standard) 13 230000188 Test lung 1L(Sponge lung) 1 14 230000075 Breathing bag(3L,black,4-piece) 1 15 122003766 O2 concentration ,monitoring kits 1 16 122002003 Throttle Assembly 1 17 122002002 Prolong tube block component 2 18 130006181 Test connector of expiratory valve 1 19 130005546 Connector of service and repair kit-2 1 20 130005547 Connector of service and repair kit-3 1 21 130005700 Connector of service and repair kit-4 1 22 122002946 Pressure sampling frock 1 23 130006182 Frock adapter of pressure sampling 1 frock 181 24 130006183 Pressure sampling connector 1 25 220000018 Straight-in flash-plug pipe tie-in 1 26 304000014 O- ring 10.6×1.8 1 27 301000347 Hexagon pattern countersunk nut 1 M4×6 28 220000080 German-style external angle hook 1 29 301000095 Plug Pan Head Screw M2×6 1 30 304000102 O- ring 22×1.8 1 31 122003112 Connect assembly of manual gas 1 seal test of integrated module 32 122003113 Two-connector assembly 1 33 304000097 O- ring 12×1.8 1 34 122003114 Four- connector assembly 1 35 122003115 Connector assembly-1 1 36 122003116 Connector assembly of expiratory 1 valve test 182 37 304000100 O- ring 18×1.8 1 38 304000125 O- ring 30×1.8 1 39 230000011 PU Tube 8/6(blue) 1 meter 40 230000273 High vacuum silica gel 1 6.5. Maintenance of machine WARNING : During installation, make sure the polarity and the plug-in connections are correct to avoid the risk of damage due to reversed polarity WARNING : Make sure not to kink or squeeze any hoses when reassembling units to avoid the risk of malfunction due to kinked or squeezed hoses. 6.5.1. Bleed gas pressure from the machine Before disconnecting pneumatic fittings, bleed all gas pressure from the machine. 1. Close all cylinder valves and disconnect all pipeline supplies from the source. 2. Set the main switch to ON. 3. Ensure that all cylinder and pipeline pressures read zero. 4. Establish a flow for the affected gas to bleed down the pressure. 5. Set the system to Standby mode 6.5.2. Disassembly the rear panels WARNINGS : Before removing rear panels 1. Bleed all gas pressure from the machine 2. Disconnect AC power cord and all electrical cables. 3. Disconnect all pipeline or cylinder gas source.. Disassembly the upper rear panel 1. Rotate and loosen the fixing screw anticlockwise with screwdriver, and then remove the six screws from the rear panel. 2. Remove the upper rear panel from the machine with much care. 3. Remove the screws on the gas inlet module panel and power supply panel shown as the following picture and open the two panels could repair the upper parts of ADS II Anesthesia Workstation. 183 Disassembly the lower rear panel 1. Remove the two fixing screws near battery box with screw driver. 2. Then remove the other ten screws around the panel. 3. Remove the lower rear panel from the machine with care. 184 Fig. Lower rear panel Disassembly the lower YOKE panel The YOKE panel has four screws on the each corner as shown in the following figure. 1. Rotate the screw driver anticlockwise and then remove the fixing screws on the panel. 2. Open the YOKE panel. 6.5.3. ADS II Anesthesia Workstation Upper Parts Repairing WARNING : During installation, make sure the polarity and the plug-in connections are correct to avoid the risk of damage due to reversed polarity 185 WARNING : Make sure not to kink or squeeze any hoses when reassembling units to avoid the risk of malfunction due to kinked or squeezed hoses. 6.5.3.1. Power supply panel repairing 1. Remove the screws on the power supply panel. (Right side of above picture) 2. Open the power supply panel Shown as the following picture.(Left side) 3. Loose four screws on the box and remove the cover. Shown as the following picture.(Right side) 4. Repair or replace any parts in the box as need. Note: It is only necessary to remove the AC Input Panel when replacing the flow sensor assembly. As necessary, proceed to next step. Fig. power supply box 186 1 ISB(Isolation Board) 3 AC power socket 2 Fuse 4 Power Switch 6.5.3.2. Gas inlet integration module panel repairing Gas inlet integration module includes O2 inlet integration module, AIR inlet integration module and N2O inlet integration module. Disassembly of O2 inlet integration module is an example of the replacement of gas inlet integration module Fig. O2 Inlet Integration Module Fig. O2 Inlet Integration Module O2 Inlet Integration Module Replacement 1. Disconnect all the gas tubes from the module. 2. Disconnect GSPB cable (W17) from J14 on Interface Board and GSPB. 3. Remove two screws securing GSPB to O2 Inlet Integration Module 4. Remove GSPB from the module. 5. Loosen and remove the two screws marked 1, 2 on the picture above. 6. Remove O2 Inlet Integration Module from the machine bracket. 7. Replace GSBP and O2 Inlet Integration Module as needed with a new one. 187 8. Reassembly GSBP and O2 Inlet Integration Module in the reverse order of disassembly. NOTE: The detail tubes connection and cables connection refer to chapter 2.1.2 and chapter 2.2.2. 6.5.3.3. Replacement of filter in gas inlet integration module Warning: The filter replacing period is 3 years in normal use. Warning: After replacing the filter, check and verify the sealing ability of gas inlet integration module. Warning: Daub proper glue to the screw when installing the filter to avoid the connector loosing in long term of use. Disassembly: 1. Remove two screws securing the gas connector to the gas inlet integration module. 2. Remove the gas connector from the module and put on a safe place. 1 O-ring sealing gasket 3. Pull out the O-ring sealing gasket (1) and 2 Filter filter (2). Replace with a new filter. 3 Fixing screw 188 Reassembly: 1. Put O-ring sealing gasket and filter into the module. Caution: Be careful when installing the filter to avoid O-ring and filter dropping out. 2. Daub proper glue to the screw surface. 3. Align the gas connector to other parts of the module, and secure the gas connector with two fixing screws. 4. Check the sealing ability of the gas inlet integration module. Refer to chapter 3.5.4~3.5.7 189 6.5.3.4. Drive Gas Pressure Regulator Replacement Drive Gas Pressure Regulator Position Pressure regulator 1. Disconnect all the gas tubes connected to the regulator. 2. Loose two screws securing the regulator bracket to panel. 3. Remove Regulator Assembly. 4. Remove nut securing bracket to Regulator. 5. Record the revision and serial number of the new regulator. 6. Reassembly the new regulator to bracket and secure with two nuts. 7. Secure Regulator Assembly with (2) screws to the panel. 8. Connect a gas tube to the upper side gas connector of regulator. 9. Attach a pressure meter to the other side of the regulator. 190 10. Verify regulator is 1.75 +/- 0.5 bar (adjust regulator as necessary). 11. Remove Pressure Meter and reinstall tube to the bottom gas connector of regulator. 6.5.3.5. Replacement of E-flow meter assembly W19 W31 Fig. E-flow meter Assembly 1. O2/N2O ratio controlled valve 2. Gas flow sensors 191 a: O2 flow sensor b: Air flow sensor c: N2O flow sensor Disassembly: E-flowmeter assembly 1. Disconnect gas tubes connected to gas regulators. 2. Disconnect gas tube connected to vaporizer. 3. Disconnect W19 connected to Interface Board for gas supply and communication. 4. Loose and remove four screws secured E-flowmeter assembly to machine on the four corners. 5. Remove E-flowmeter assembly from ADS II Anesthesia Workstation. Gas flow sensors 1. Disconnect all the gas tubes connected to gas flow sensors. 2. Disconnect W31 connected to EFM. 3. Loose and remove four screws secured gas flow sensors to E-flowmeter assembly. 4. Remove gas flow sensors from E-flowmeter assembly. O2/N2O ratio controlled valve 1. Disconnect gas tubes connected to O2/N2O ratio controlled valve. 192 2. Loose and remove two screws on the manifold that fixing O2/N2O ratio controlled valve to E-flowmeter assembly. 3. Remove O2/N2O ratio controlled valve from E-flowmeter assembly. . Assembly: 1. Replace the trouble parts as needed. 2. Record the serial number of the new parts. 3. Assembly the E-flowmeter assembly in reverse order of disassembly procedure 4. Secure E-flowmeter assembly to the machine. 5. Connect all the gas tubes and cable to E-flowmeter assembly. 193 6.5.4. Maintenance of electrical box 6.5.4.1. Replacement of MCB W13 W18 W15 W20 W14 Fig.MCB W11 W12 Disassembly and Reassembly: 1. Disconnect W13 from J3 connected to Solenoid valve 2. Disconnect W15 from J2 connected to IP valve 3. Disconnect W14 from J1 connected to Woodward valve 4. Disconnect W11 from J4 connected to Power Supply 5. Disconnect W12 from J5 connected to Interface board A side. 6. Disconnect W20 from J12 connected to LJ4 7. Disconnect W18 from J13 connected to Ambient Pressure Board. 8. Remove all the gas tube connected sensors. 9. Remove 4 screws fixing the MCB to machine 10. Replace new MCB and record the new version and serial number of new MCB. 11. Reassembly the new MCB in reverse order of disassembly procedure. 194 6.5.4.2. Replacement of PSB (PSB) Interface Board PSB Switching power supply Fig. PSB position 195 W10 W2 W4 W9 Fig. PSB Disassembly and Assembly: 1. Disconnect W10 from J4 connected to Interface Board A side 2. Disconnect W9 from P2 connected to Interface Board A side. 3. Disconnect W2 from J2 connected to Switching Power Supply 4. Disconnect W4 from J1 connected to Battery 5. Remove four screws fixing PSB to machine and remove PSB. 6. Replace the new PSB and record the new version and serial number. 7. Reassembly the new PSB in reverse order of disassembly procedure. 196 W1 W2 Switching power supply Disassembly and Assembly: 1. Remove 2 screws fixing Switching Power Supply to machine frame. 2. Disconnect W2 connected to PSB 2. Disconnect W1 from connected to Interface Board A side. 3. Disconnect W2 from J2 connected to LJ1 6. Replace the new Switching Power Supply 7. Reassembly the new one in reverse order of disassembly procedure. 197 6.5.4.3. WARNING Replacement of Gas Module : During installation, make sure the polarity and the plug-in connections are correct to avoid the risk of damage due to reversed polarity WARNING : Make sure not to kink or squeeze any hoses when reassembling units to avoid the risk of malfunction due to kinked or squeezed hoses. WARNING : In case of the risk from the wrong connection of tube, pay more attention when connecting the tubes. Fig. Gas Module 198 W18 Inspiratory Valve Solenoid Valve W14 W13 Fig. Gas Module Disassembly: 1. Remove the tubes on the right side of Gas Module 2. Remove two tubes which has bigger diameter from right side of Gas Module. 3. Remove four tubes from front side of Gas Module. 4. Disconnect one end of W18 from J13 on MCB, disconnect the other end from Ambient Pressure Sensor Board; 5. Disconnect W12(Insp.-Valve), W13(Solenoid Valve) cable from JJ1, JJ2 interface on MCB 199 6. Remove two screws securing Gas Module to the machine. 7. Remove the Ambient Pressure Sensor Board secured to the Gas Module with two screw 8. Record the new version and serial number of new Gas Module Assembly: 1. Fix the Ambient Pressure Sensor Board to the Gas Module with two screw 2. Fix Gas Module with two screws to the machine 3. Connect W12of Insp.-Valve, W13 of Solenoid Valve cable to JJ1, JJ2 interface on MCB 4. Connect one end of W18 to J13 on MCB , connect another end of W18 to Ambient Pressure Sensor Board 5. Connect two tubes to connectors on the left side of Gas Module 6. Connect two tubes which has bigger diameter to connectors on the right side of Gas Module. 7. Connect four tubes to connectors on the front side of Gas Module. 6.5.4.4. Replacement of proportion valve CAUTION : The screws fixing proportion valve have plastic gasket, please pay more attention when replacing the proportion valve to avoid the gasket missing. CAUTION : Line up the proportion valve and holes in the module when reinstalling the proportion valve to avoid the reverse installation. Proportion Valve Replacement: 1. Remove the gas module from machine. The detail disassembly procedure refers to the chapter 6.5.4.3 2. Remove the two fixing hexagon screws with hexagon screwdriver, see the figures as bellow. 200 3. Replace and the new proportion valve 4. Record the version and serial number of the new proportion valve. 5. Put the hexagon screws into the proportion valve holes. 6. Put the plastic gasket on the screws. 7. Line up the proportion valve and the module. 8. Rotate the screws counterclockwise with screwdriver and fix proportion valve. 9. Check the gas module sealing ability, refer to chapter 6.5.4.8. 6.5.4.5. Replacement of solenoid valve CAUTION : Do not forge the sealing gasket when reassembling the solenoid valve to insure the sealing ability. Solenoid valve 201 Sealing gasket Replacement: 1. Remove the gas module from machine. The detail disassembly procedure refers to the chapter 6.5.4.3 2. Rotate the fixing screws counterclockwise with a screwdriver, and then remove the solenoid valve from the module. See the picture shown on the right. 3. Remove the fixing screws of the solenoid valve and the remove the valve from the module. 4. Replace the solenoid valve. 5. Install solenoid valve use the reverse procedure of disassembly 6. Check the gas module sealing ability, refer to chapter 6.5.4.8. 202 6.5.4.6. Replacement of safety valve CAUTION : Check the sealing gasket when replacing the safety valve. If the sealing gasket is damaged on the surface or out of use, please replace it. Safety valve Disassembly 1. Remove the gas module from machine. The detail disassembly procedure refers to the chapter 6.5.4.3 2. Rotate the screws counterclockwise with the screwdriver and remove the two fixing screw shown as the picture on the right. 3. Remove the gas exhausted port 4. Pull out the old safety valve and replace it. 5. Install the new safety valve in the reverse order of disassembly. 6. Check the gas module sealing ability, refer to chapter. 6.5.4.8 203 6.5.4.7. WARNING Replacement of Ambient Pressure Board (APB) : Disconnect W15 cable before replacing APB. CAUTION : Replace APB directly when the ambient pressure sensor doesn’t work normally. CAUTION : The screws fixing APB have plastic gasket, please pay more attention when replacing APB to avoid the gasket missing. APB Disassembly and Installation 1. Remove the gas module from machine. The detail disassembly procedure refers to the chapter 6.5.4.3 2. Rotate the fixing screws counterclockwise with a screwdriver, and remove APB. The APB position seen the picture shown on the right. 3. Replace APB, and record the .version and serial number of the new APB. 4 Install APB using the reverse procedure of disassembly 204 6.5.4.8. Replacement of PEEP Valve IP Valve Disassembly: 1. Remove two tubes connected to left side of valve. 2. Remove one tube connected to front side of valve. 3. Remove one tube connected to right side of valve. 4. Disconnect W15 cable connected to J2 on MCB 5. Remove two screws (1) securing IP valve bracket to gas box. 6. Remove four screws (2) securing IP valve to bracket. 7. Replace the new IP valve and record its revision and serial number. Assembly: 1. Secure bracket to IP valve with four screws. 2. Secure IP valve assembly to gas box with two screws. 3. Connect W15 of IP valve to J2 on MCB 4. Connect tube to rear connector on left side of the valve. 5. Connect tube to front connector on left side of the valve. 6. Connect tube to connector on front of the valve. 7. Connect tube to connector on right side of the valve. 205 6.5.4.9. Replacement of battery Warning: Disconnect AC power supply before replacing the battery. Warning: Rotate main switch to ― OFF‖ to close the ADS II Anesthesia Workstation when replacing the battery. Caution: The disposal of used batteries must be conducted in accordance with local regulation requirements. Caution: The battery has the same specifications with ADS II Anesthesia Workstation is recommended Step 1 Step 2 Step 3 Step 4 206 Step 5 Replacement: 1. Disconnect the AC power supply. 2. Set the main switch to ― OFF‖ 3. Remove four screws fixing the battery assembly to machine frame. 4. Pull the battery assembly out. 5. Disconnect battery cable connected to LJ2. 6. Remove the two screws on the securing plate and then remove the securing plate. 7. Pull out the old battery and disposal of it in accordance with local regulation requirements. 8. Replace the old battery with a new one. 9. Reinstall the new battery in the reverse order of disassembly. 207 6.5.5. Screen Assembly Communication Board Touching screen controlling board 208 PC104 Isolation Plate Touch screen Replacement: 1. Disconnect cable connected to JJ1 and Isolation Board. 2. Disconnect cable connected to J6 and Interface Board. 3. Loosen and remove the four fixing screws on the corner of the screen assembly. 4. Remove the screen assembly from the machine frame. 5. Replace communication board, PC104 and touch screen controlling board, touch screen as needed. NOTE: Before replacing communication board, please disconnect all the cables connected to it and remove all the fixing screws. (Including PC104, touch screen and touch screen controlling board) 6. Record the version and serial number of the new communication board. 7. Reassembly and reinstall the screen assembly with the reverse procedure of disassembly. 209 6.5.6. Panel and Encoder assembly Step 1 Step 2 Step 3 Step 4 210 1. Disconnect the encoder cable connected to J3 on Communication Board. 2. Remove the two screws securing encoder fixing plate to the panel. 3. Remove the knob and encoder assembly from the panel. 4. Remove two nuts securing the panel to the machine frame. 5. Replace the damaged encoder assembly or panel with a new one as needed. 6. Reinstall the new encoder assembly or panel with the reverse procedure of disassembly. 6.5.7. Spotlight Replacement: 1. Disconnect the AC power supply. 2. Set the main switch to ― OFF‖. 3. Remove the upper rear panel. 4. Remove the two screws (circled). 5. Disconnect the cables as marked in the above figure. 6. Replace the spotlight with a new one. 7. Reinstall the new spotlight with the reverse procedure of disassembly. 211 6.5.8. Top light Disassembly: 1. Disconnect the AC power supply. 2. Set the main switch to ― OFF‖. 3. Remove the screws (circled) around the coping and then remove the coping. 4. Remove the four screws (circled) which fix the top light board on the top plate. 5. Replace the top light backlight board. 6. Record the version and serial number of the new top light board. 7. Reassembly and reinstall the top light board with the reverse procedure of disassembly. 212 6.5.9. Vaporizer Manifold 1. Remove the upper rear panel of machine. 2. Open the gas inlet integration module panel. 3. Pull out the two pipelines as the direction the arrows marked. 4. Remove the four screws (circled) with the socket wrench. 5. Pull out the vaporizer mount. 6. Replace the vaporizer mount. 7. Reassembly the vaporizer manifold with the reverse procedure of disassembly. 213 7. How to Get Help Infinium Medical maintains a network composed of professional maintenance personnel who have received factory trainings. Perform all the operation inspections to check appropriate control settings before requesting repair. If operation problem still exists, please contact Infinium Medical distributor or service department for help. Infinium Medical Inc. Tel: 1-727-531-8434 Address: 12151 62nd St. N #5 Largo, FL 33773 USA Website: Http:// www.Infiniummedical.com PN: AL9009, Version 1.00 May 4, 2014 214 File No: A10005 Rev 1