Atlas 100-30
Technical Manual
1-2 FLOOR, BUILDING 12, NO.28 YUHUA ROAD, AREA B,
BEIJING TIANZHU AIRPORT INDUSTRIAL ZONE, BEIJING, 101318, PRC
+86 10 6431 3433 FAX+86 10 6431 3185
Doc. 8660
Technical Manual
Index
Section 0
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Page 1 of 65
Technical Manual
INDEX
General index (doc. 9535)
Valid from 10th December 2008
Section 0 - Index
Page
Section 1 - General description
1
2
Introduction
8
1.1 Applications and used
8
1.2 Composition
8
1.2.1 Radiographic unit
8
1.2.2 Control panel
9
Technical Data
11
2.1 Classification of the device
11
2.2 Technical characteristics
11
2.2.1 Dimensions and weights
13
2.2.2 kV – mA Relationship
14
2.2.3 RX exposure time
15
Section 2 - Installation
1
2
3
Installation
18
1.1 Introduction
18
1.2 Electrical connections
19
Configuration
19
2.1 Changing the language for the unit console
19
2.2 Programming the anatomical techniques
20
Acceptance test
21
3.1 Checking cables and connectors
21
3.2 Electrical checks
21
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INDEX
Page
Section 3 – Safety and Maintenance
1
2
Safety
26
1.1 Introduction
26
1.2 Responsibility declaration
27
1.3 Compliance and reference address
27
1.4 System safety
27
1.4.1 Mechanical safety
27
1.4.2 Electrical safety
27
1.5 Protection against ionising radiation
28
1.6 Residual risks
29
1.7 Signals
30
1.7.1 Symbols used
30
1.7.2 Labelling
30
Maintenance
31
2.1 Routine maintenance
31
2.1.1 General racommendations
31
2.1.2 Frequent checks and inspections
32
2.2 General checks and inspections
32
2.3 Cleaning and disinfection
32
2.4 Special maintenance
33
2.4.1 Troubleshooting
33
2.4.2 Replacement of components
34
2.4.3 List potentiometers
35
2.4.4 List leds
36
2.4.5 List fuses
37
2.5 Spare parts
38
2.6 Disposal of device
38
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Technical Manual
INDEX
Page
Section 4 – Use of the unit
1
Transport
40
2
Switching on
40
3
Emission of X-rays
43
3.1 Emission of X-rays using the manual technique
44
3.2 X-ray emission using the anatomical technique
46
Operations after use
47
4
Section 5 – X-ray setting
1
Introduction
50
1.1 Dip switch
51
2
Rotating anode stator power supply adjustment
51
3
Set-up procedure
52
3.1 Service menu
53
kV adjustment
54
4.1 Adjustment of the “set-up” voltage
54
4.2 Adjustment of maximum kV setting safety
54
4.3 Checking maximum kV setting safety
55
Adjustment of the filament current
56
5.1 Adjustment of filament current
57
6
mAs adjustment
59
7
Adjustment of the battery voltage
60
8
Checking the radiografic parameter
61
8.1 Checking kV and mAs during radiography
61
4
5
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INDEX
Section 6 – Drawings
Annex 1 – Responsibility Declaration
Annex 2 – Labelling
Annex 3 – Test Sheet
Manuals of unit components
Declaration of conformity and test reports
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INDEX
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General
description
Section 1
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GENERAL DESCRIPTION
1 INTRODUCTION
1.1 APPLICATIONS AND USED
The equipment is part of a RADIOGRAPHIC UNIT for radiography on X-Ray film, that may be
used in different places and situations: operating theatre, orthopedics, intensive care, emergency
room.
1.2 COMPOSITION
1.2.1 RADIOGRAPHIC UNIT
1
2
3
1
Control electronics assembly
2
Control panel
3
X-ray tube head
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GENERAL DESCRIPTION
1.2.2 CONTROL PANEL
14
13
12
11
10
9
8
1
2
3
4
5
6
7
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GENERAL DESCRIPTION
1
2
kV
kV increase
mAs
HP/LP (1) Power selection
4
Prog
Unit ON
8
Unit OFF
9
Data storage in anatomical
technique
10
Potter-Bucky selection
11
X-Ray exposure
12
X-Ray ready
13
Alarm signalling
14
Display for Dates and Messages
mAs decrease
mAs increase
3
7
kV decrease
N° of exams memorized in Technique
Anatomical
5
Anatomical Technique Selection
6
Collimator light activation
(1) A change of the Power level involves a change of the used focal spot:
• High Power (HP) – Big Focus
• Low Power (LP) – Small Focus
In the following paragraphs the abbreviations HP and LP will be used.
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GENERAL DESCRIPTION
2 TECHNICAL DATA
2.1 CLASSIFICATION OF THE DEVICE
CLASSIFICATION – EN 60601 1 § 5
➠ Type of protection against short circuit: CLASS I
➠ Degree of protection against direct and indirect contact: TIPE B
➠ Use conditions: CONTINUOUS WORKING WITH INTERMITTENT LOAD
➠ Unit not to be used in the presence of an inflammable anaesthetic mixture with air or
nitrous oxide
CLASSIFICATION – 93/42/EEC DIRECTIVE
➠ In according with Annex IX: CLASS II b
2.2 TECHNICAL CHARACTERISTICS
Electrical characteristics
230 Vac (± 10%), 16 A
50/60 Hz
SINGLE PHASE VOLTAGE
FREQUENCY
CONTINUOS WORKING
1A
INTERMITTENT WORKING
12 A
MAX ABSORBED CURRENT
LINE COMPENSATION
LINE RESISTANCE
Automatic
< 2.5 Ω
Radiological characteristics
30 kW
LP (Low Power)
HP (High Power)
MAX POWER
7.5 kW
MAX CURRENT IN RADIOGRAPHY 150 mA
EXPOSURE TIME
WORKING FREQUENCY
RANGE KV
RANGE MAS
A.T. PILOTAGE
RIPPLE
TOTAL FILTRATION
RISING TIME
30 kW
425 mA
1.2 ms ÷ 1.0 s (chose from processor in
function of mAs)
100 kHz
40 ÷ 125 (Step of 1 kV)
0.5 ÷ 200 in 25 values
Inverter driven by IGBT
≤ 3% at Max Power
> 2.7 mmAl
≤ 1 ms
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GENERAL DESCRIPTION
X-Ray Tube Head
All information relevant to the X-Ray Tube Head and to the X-ray tube can be found in the X-Ray Tube Head Technical
Data Sheet
Rotating with speed 3000 RPM
TYPE OF ANODE
0.6 mm
FOCAL SPOTS
1.3 mm
Collimator (optional)
All information relevant to the Collimator be found in the relative Technical Data Sheet
SHUTTERS TO MULTIPLE PLANS
Parallels and perpendicular with manual movement
Dosimeter (optional)
MODEL
ACTIVE AREA
MINIMAL DOSE RESOLUTION
MAXIMAL MEASURABLE DOSE
Kermax-plus
146 x 146 mm2
1 mGycm2
9999.9999 mGycm2
VacuDap 2000 with printer optional
147 x 147 mm2
1 mGycm2
9999.9999 mGycm2
Operating modes and functionality
INTERFACE USER
OPERATING MODES
RADIOGRAPHY
X-RAY CONTROL
Polycarbonate flat keyboard with alphanumeric LCD display for all the operative
parameters and messages of possible anomalous conditions – administrated by a
microprocessor.
Two-points techniques (kV-mAs)
40 programmable anatomic technique (20 for LP and 20 for HP)
Distance control with double – click and extensible cable (≥4m)
mAmin and mAmax
Maximum exposure time
Temperature maximum X-ray tube head
SAFETY
Count thermal units X-ray tube head
Max kV, min kV, max ∆kV, max I
Anode rotation
Microprocessor self – test
Transport and storage conditions
MAXIMAL TEMPERATURE
RECOMMENDED TEMPERATURE
RELATIVE HUMIDITY
ATMOSPHERIC PRESSURE
–10°C ÷ 55°C
0°C ÷ 40°C
20% ÷ 90%
500 hPa ÷ 1060 hPa
Operating conditions
TEMPERATURE
RELATIVE HUMIDITY
ATMOSPHERIC PRESSURE
10°C ÷ 40°C
30% ÷ 75%
700 hPa ÷ 1060 hPa
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GENERAL DESCRIPTION
Mechanical Characteristics
WIDTH
LENGHT
HEIGHT
WEIGHT
260 mm
498 mm
568 mm
≅ 90 kg
NOTE: Upon your request it is possible to have a cable of 20m in order to position in a distance the
control console and the double – click pushbutton (with extensible cable ≥4m).
2.2.1 DIMENSIONS AND WEIGHTS
Drawing N°: 7465
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GENERAL DESCRIPTION
2.2.2 kV – mA Relationship
kV - mA Relationship in Radiogr aphy mode 30kW
470,00
420,00
mA Radiography
370,00
320,00
270,00
220,00
170,00
120,00
70,00
20,00
35
40
45
50
55
60
65
70
75
80
85
90
95
100 105 110 115 120 125
kV
kV - mA Relationship in Radiogr aphy mode 7.5kW
160,00
mA Radiography
140,00
120,00
100,00
80,00
60,00
40,00
20,00
35
40
45
50
55
60
65
70
75
80
85
90
95
100 105 110 115 120 125
kV
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GENERAL DESCRIPTION
2.2.3 RX EXPOSURE TIME
In the following tables the exposure times (s) associated to kV and mAs are reported. Since
the apparatus is a device functioning with a two point technique (kV and mAs) we remind that the
values indicated in the table are merely theoretical and can undergo a variation in relation to the
tolerance of the mA.
TABLE 1– 7.5KW POWER
mAs
0,5 1 1,3 1,6 2 2,5 3,2 4
5 6,3 8 10 13 16 20 25 32 40 50 63 80 100 130 160 200
kV
40
0,003 0,006 0,008 0,010 0,013 0,016 0,021 0,026 0,033 0,042 0,053 0,066 0,086 0,106 0,133 0,166 0,213 0,266 0,333 0,420 0,533 0,666 0,866 1,066 1,333
(150mA)
50
0,003 0,006 0,008 0,010 0,013 0,016 0,021 0,026 0,033 0,042 0,053 0,066 0,086 0,106 0,133 0,166 0,213 0,266 0,333 0,420 0,533 0,666 0.866 1.066
(150mA)
60
0,004 0,008 0,010 0,012 0,016 0,020 0,025 0,032 0,040 0,050 0,064 0,080 0,104 0,128 0,160 0,200 0,256 0,320 0,400 0,504 0,640 0.800 1.040
(125mA)
70
0,004 0,009 0,012 0,014 0,018 0,023 0,029 0,037 0,046 0,058 0,074 0,093 0,121 0,149 0,186 0,233 0,299 0,373 0,467 0,588 0.747 0.934
(107mA)
80
0,005 0,010 0,013 0,017 0,021 0,026 0,034 0,043 0,053 0,067 0,086 0,107 0,139 0,172 0,215 0,268 0,344 0,430 0,537 0,677 0.860 1.075
(93mA)
90
0,006 0,012 0,015 0,019 0,024 0,030 0,038 0,048 0,060 0,075 0,096 0,120 0,156 0,192 0,240 0,301 0,385 0,481 0,602 0.759 0.963
(83mA)
100
0,006 0,013 0,017 0,021 0,026 0,033 0,042 0,053 0,066 0,084 0,106 0,133 0,173 0,213 0,266 0,333 0,426 0,533 0,666 0.840 1.066
(75mA)
110
0,007 0,014 0,019 0,023 0,029 0,036 0,047 0,058 0,073 0,092 0,117 0,147 0,191 0,235 0,294 0,367 0,470 0,588 0.735 0.926
(68mA)
120
0,008 0,016 0,020 0,025 0,032 0,040 0,051 0,064 0,080 0,101 0,129 0,161 0,209 0,258 0,322 0,403 0,516 0,645 0.806 1.016
(62mA)
125
0,008 0,017 0,022 0,027 0,034 0,042 0,054 0,068 0,085 0,107 0,136 0,169 0,220 0,271 0,339 0,424 0,542 0,678 0.847 1.067
(59mA)
TABLE 2– 30KW POWER
mAs
0,5 1 1,3 1,6 2 2,5 3,2 4
5 6,3 8 10 13 16 20 25 32 40 50 63 80 100 130 160 200
kV
40
0,001 0,002 0,003 0,003 0,004 0,005 0,007 0,009 0,011 0,014 0,018 0,023 0,030 0,037 0,047 0,058 0,075 0,094 0,117 0,148 0,188 0,235 0,305 0,376 0,470
(425mA)
50
0,001 0,002 0,003 0,004 0,005 0,006 0,008 0,010 0,012 0,015 0,020 0,025 0,032 0,040 0,050 0,062 0,080 0,100 0,125 0,157 0,200 0,250 0,325 0,400
(400mA)
60
0,001 0,002 0,003 0,004 0,005 0,006 0,008 0,010 0,013 0,016 0,021 0,026 0,034 0,042 0,053 0,066 0,085 0,106 0,133 0,168 0,213 0,266 0,346
(375mA)
70
0,001 0,002 0,003 0,004 0,005 0,007 0,009 0,011 0,014 0,017 0,022 0,028 0,036 0,045 0,056 0,070 0,090 0,112 0,140 0,177 0,225 0,281
(355mA)
80
0,001 0,002 0,003 0,004 0,005 0,007 0,009 0,011 0,014 0,018 0,023 0,029 0,038 0,047 0,059 0,074 0,094 0,118 0,148 0,186 0,237 0,296
(337mA)
90
0,001 0,003 0,004 0,005 0,006 0,007 0,010 0,012 0,015 0,019 0,025 0,031 0,040 0,050 0,062 0,078 0,100 0,125 0,156 0,197 0,25
(320mA)
100
0,001 0,003 0,004 0,005 0,006 0,008 0,010 0,013 0,016 0,021 0,026 0,033 0,043 0,053 0,066 0,083 0,106 0,133 0,166 0,21 0,266
(300mA)
110
0,002 0,004 0,006 0,007 0,009 0,012 0,015 0,019 0,024 0,030 0,039 0,049 0,063 0,078 0,098 0,122 0,156 0,196 0,245 0,308
(204mA)
120
0,003 0,007 0,009 0,011 0,014 0,017 0,022 0,028 0,035 0,044 0,056 0,070 0,092 0,113 0,141 0,177 0,226 0,283 0,354 0,446
(141mA)
125
0,004 0,008 0,010 0,013 0,016 0,020 0,026 0,032 0,040 0,050 0,063 0,079 0,103 0,127 0,159 0,198 0,254 0,317 0,397 0,500
(126mA)
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GENERAL DESCRIPTION
Section 1
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Installation
Section 2
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INSTALLATION
1 INSTALLATION
1.1 INTRODUCTION
The installation procedure consists of different operations to be carried out in the order shown in
the flow chart below.
Electrical connections
Acceptance Test
The various operations indicated are described in detail in the following paragraphs.
The installation process can only be considered completed after the TEST SHEET regarding the
acceptance tests provided with this manual has been filled in.
NOTE: the radiological system is normally pre-installed and configured in the factory according to
the specific requirements of the customer. Certain adjustments may, however, be necessary when
components are replaced.
The whole machine parameter adjustment procedure is described in detail in this manual (SECTION
5).
After 30 minutes of non-use, the equipment automatically switches into stand-by
mode, that means the capacitors battery is unloaded; the words “Stand By”
appears on the display of control console and the value of the battery voltage is
!
zero. Pressing any key of control console, the battery reloads to the maximum
value and it is possible to make X-Ray exposure. During capacitors battery
loading the words “Waiting” will appear on control console display, as explained
in SECTION 4 - § 2.
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INSTALLATION
1.2 ELECTRICAL CONNECTIONS
The apparatus must be supplied with 230 V single-phase alternating power supply.
The maximum absorbed current is reported on label of the unit and on technical data (SEE SECTION
1 - § 2.2).
Make sure that the power supply socket is approved for 230 Vac – 16 A.
!
2 CONFIGURATION
2.1 CHANGING THE LANGUAGE FOR THE UNIT CONSOLE
The signalling on the unit console can be displayed in Italian, English, French or Spanish.
Selection of the language is made when the system is turned on as shown below.
➠ Turn the unit on using the ON/OFF button: the initial test of the
unit will be activated automatically, during which the display will
show the version of the control software installed (SEE SECTION 4 -
§ 2).
➠ Keep immediately the relevant button pressed until the word
"WAITING" appears on the display in the language selected.
ENGLISH
ITALIAN
FRENCH
SPANISH
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INSTALLATION
2.2 PROGRAMMING THE ANATOMICAL TECHNIQUES
Programming an ANATOMICAL TECHNIQUE means associating the KV and mAs values
considered suitable with the identifier (i.e. with the name, such as "SKULL", "SHOULDER"…). It
will then be possible to call up an ANATOMICAL TECHNIQUE by means of its name and immediately
find the radiographic parameters already set to the values memorised previously. To associate the
KV and mAs values with an identifier, proceed as follows.
➠ Press the ANATOMICAL TECHNIQUE SELECTION button: the LED
in the corner of the button itself will light up
➠ using the PROGRAM SELECTION up-down type buttons, select the
ANATOMICAL TECHNIQUE for which the KV and mAs values are to
inserted; also select the power LP or HP where the values will be
memorised
➠ select the KV and mAs values considered suitable for that type of
examination using the KV SELECTION and mAs SELECTION
buttons (if necessary see the SECTION 4 - § 3.2)
➠ Press the DATA MEMORISATION button until the acoustic signal is
heard. At this point, the KV and mAs values relative to the selected
ANATOMICAL TECHNIQUE have been memorised
➠ It is therefore possible to select a new ANATOMICAL TECHNIQUE to
associate specific radiographic parameters to, by repeating the
same procedure
➠ For exit to the programming the ANATOMICAL TECHNIQUES press
the ANATOMICAL TECHNIQUE SELECTION button
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INSTALLATION
3 ACCEPTANCE TEST
The ACCEPTANCE TEST includes all the control and checking operations listed on the TEST SHEET.
These operations must be grouped together under two general categories:
➠ checking cables and connectors
➠ electrical checks
Each operation is identified by a code which is then used on the TEST SHEET.
3.1 CHECKING CABLES AND CONNECTORS
Visually control each cable and each connector, checking that there are no interruptions and/or
crushing.
A.1
Power supply cable of the unit
A.2
Radiography control pushbutton cable
A.3
Connection cable between unit/X-ray tube head
3.2 ELECTRICAL CHECKS
With regard to the electrical part, correct operation of the following must be checked:
➠ SAFETY DEVICES
➠ SIGNALS
NOTE: Remove the carters to carry out the electrical checks.
The procedure is described below:
B.1
POWER SUPPLY: connect the unit to the mains power supply;
B.2
INITIAL TEST: check that the initial automatic test is correct of the unit;
B.3
SOFTWARE: check that the visualization of installed software;
B.4
LOADING: check that the switching on the unit appears the increment of voltage on
display until 320 V. The complete loading of the capacitors battery is ready in about
40/45 sec;
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INSTALLATION
B.5
DISCHARGING: switch the unit off and check the complete discharging of the
capacitors battery by means the switching off the LD3 led mounted on S25 board;
Do not carry out switching the unit On and Off
!
B.6
SET-UP DATES IN MEMORY: enter on SET-UP (SEE SECTION 5 - § 3) and check that the
SET-UP dates are in according with dates selected (SEE SECTION 5 - § 3 – TABLE 7);
B.7
X-RAY TUBE FORMATION: when not in used the unit for a long time, before to use the
unit normally, carry out the “formation” of the X-ray tube with a serial of exposure
using the following dates (carry out for each value of kV and mAs 10 exposure and
keep a pause of 1 minute between an exposure and another one):
40 kV
100 mAs
50 kV
80 mAs
60 kV
63 mAs
70 kV
63 mAs
80 kV
50 mAs
90 kV
50 mAs
100 kV
40 mAs
110 kV
40 mAs
120 kV
40 mAs
During this formation check with oscilloscope the value of kV [S19/B board Tp11 (-);
Tp3 (+) ] and mA [S19/B board: Tp11 (-); Tp6 (+) ] on inverter. Select the
oscilloscope in the following way:
CHANNEL A:
1 V/DIV ( 1V read is equal to 50 mA)
CHANNEL B:
1 V/DIV ( 1V read is equal to 20 KV)
BASE TIME:
25ms/DIV
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INSTALLATION
In case of kV wave form presents of high voltage discharge or you hear discharge
inside X-ray tube interrupt the sequence, wait few minutes before starting again;
repeat the initial formation checking that the fuse F7 is interrupted (100A) (See.
Electrical Draw);
Warning: presence of 320 Vdc voltage!
!
B.8
EXPOSURE TIME: check that during exposure time the X-ray passage led until the end
of exposure the display shows the real exposure time in second (SEE SECTION 1 - §
2.2.3)
B.9
STAND BY: let the equipment switched on in “Stand by” mode, that means without
make X-Ray exposure, and verify that after 30 minutes the capacitors battery is
unloaded, as explained in § 1.1. Press any key of control console to restore the
capacitors loading and repeat the whole procedure for a total time of at least 4 hours.
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INSTALLATION
Section 2
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Safety and
Maintenance
Section 3
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SAFETY AND MAINTENANCE
1 SAFETY
1.1 INTRODUCTION
The aim of this manual is to provide qualified radiology technicians, medical and paramedical
staff with operating instructions to make use of the RADIOGRAPHIC UNIT simple and safe.
This apparatus emits X-RAYS and must only be used in compliance with the safety instructions
indicated in this manual and must not be used for any other purposes than those foreseen.
The system must only be used by personnel with the necessary knowledge in the field of radiation
protection and with the necessary training in use of X-ray apparatus.
We remind that the device is assembled inside a X-ray finished equipment, therefore the final user
has to apply the unit safety indications. Some warnings are anyway hereby listed:
➠ the apparatus must not be used when there are any electrical and/or mechanical faults;
➠ do not use the system when any signalling or alarm device of the system is not working
properly;
➠ under no circumstances work with the unit in places saturated with vapours and/or
flammable gases or explosives;
➠ any modification to the system must be authorised in writing by the MANUFACTURER;
➠ if you want to use the apparatus in combination with other equipment, components or
modules, and when compatibility with the latter is not certain, it is indispensable to make
sure that there is no danger to the patients and/or operating personnel. In this case, consult
the manufacturer of the apparatus in question or an expert in the sector;
➠ like any other apparatus, the System must be used correctly. It also need PERIODIC
CHECKS AND MAINTENANCE as specified under § 2.1 in this section;
➠ all maintenance, repair and/or modification work must be carried out by PERSONNEL
QUALIFIED AND AUTHORIZED by the Manufacturing Company. The latter declines any
responsibility for malfunctions caused by unauthorised interventions;
➠ the MANUFACTURING COMPANY of the apparatus declines any responsibility for damage
to people and/or things caused by its improper use.
Section 3
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SAFETY AND MAINTENANCE
1.2 RESPONSIBILITY DECLARATION
Enclosed to the present manual the MANUFACTURER RESPONSIBILITY DECLARATION (SEE
ANNEX 1).
1.3 COMPLIANCE AND REFERENCE ADDRESS
For information relevant to the compliance make always reference to ANNEX 1.
1.4 SYSTEM SAFETY
1.4.1 MECHANICAL SAFETY
We remind that the device is assembled inside a X-ray finished equipment, therefore the final
user has to apply the unit mechanical safety indications.
1.4.2 ELECTRICAL SAFETY
➠ Make sure that the power supply socket where the apparatus is to be connected is
approved for the foreseen voltage and current for use of the system
➠ the radiology system must not be used in rooms where there is the risk of explosion
➠ disconnect the installation from the mains before carrying out any cleaning, disinfection
and/or sterilisation
➠ always turn the apparatus off after use.
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SAFETY AND MAINTENANCE
1.5 PROTECTION AGAINST IONISING RADIATION
Before carrying out any X-ray exposure, make sure that all the necessary precautions against
radiation have been taken.
During radiation emission, the personnel in the X-ray room must respect the regulations in force
regarding protection against radiation. For this, bear in mind the following rules:
➠ where necessary, use protective accessories against radiation;
➠ always use the special X-ray protective coats: an X-ray protective material equivalent to
0.35 mm of lead (0.35 mm Pb) attenuates the radiation produced at 50 kV by 99.95%
and at 100 kV by 94.5%;
➠ the best protection against radiation is distance: therefore keep as far away as possible
both from the source of radiation and from the exposure object, also by using the suited
exposure-push-button with its extensible cable;
➠ avoid moving or standing in the path of the rays;
➠ always use the smallest exposure range possible: the radiation dispersed largely depends
on the volume of the object X-rayed;
➠ keep the patient’s examination area the furthest away as possible from X-ray source.
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SAFETY AND MAINTENANCE
1.6 RESIDUAL RISKS
The system is designed and constructed according to the strictest principles of compliance with
safety requirements. However, there are residual risks due either to incorrect use of the apparatus
or to deficiencies in the protective measures taken.
With regard to the risks due to incorrect use of the apparatus, please see the instructions and
recommendations given in the points above.
For the residual risks due to any defect in the protection measures taken, it must be remembered
that:
➠ Protection against electric shocks is carried out by means connecting the metallic
covering parts of the apparatus to earth: it is therefore necessary to periodically check –
according to the NORMAL MAINTENANCE PLAN described under § 2.1 of this section –
correct operation of the whole earthing circuit.
Not taking notice of the unit alarms could cause overheating of the X-RAY TUBE
!
HEAD: this overload could lead to loss of the means of insulation in the X-ray tube
head itself at very high temperatures.
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SAFETY AND MAINTENANCE
1.7 SIGNALS
1.7.1 SYMBOLS USED
Apart from the symbol on the CONTROL CONSOLE, others have been used on the unit, as
illustrated below.
SYMBOL
MEANING
POSITIONING
CAUTION: SEE THE ATTACHED
DOCUMENTATION
Unit label, protection panel of the electronic
group
PHYSIOLOGICAL EFFECTS
Unit label, control panel
CLASS B EQUIPMENT (IEC-601-1
STANDARD)
Unit label
EQUIPMENT THAT REQUIRES A
CORRECT DISPOSAL (2002/96/EC)
Unit label
PROTECTIVE EARTH
Equipotential bar
RADIOGRAPHY
Radiography pushbutton
X-RAY FOCUS POSITION
X-ray tube head covering
1.7.2 LABELLING
Sample of the IDENTIFYING LABELS sticked on the X-ray unit is attached to the present
manual (SEE ANNEX 2).
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SAFETY AND MAINTENANCE
2 MAINTENANCE
2.1 ROUTINE MAINTENANCE
2.1.1 GENERAL RACOMMENDATIONS
The radiological system requires regular checks and maintenance. The following
recommendations have the aim of helping the operator to keep the apparatus in good working and
safe conditions during service.
Correct adjustment of the electrical and electronic systems has a direct influence on the operation
of the system, on the quality of the image and on the electrical safety of the system, as well as on
the level of exposure to radiation the operators and patients are subjected to.
The MAINTENANCE PROGRAMME, described in the following paragraphs, consists of controls and
interventions to be carried out by specialised personnel authorised by the manufacturer. All
maintenance operations are the responsibility of the owner of the apparatus.
Should it be necessary to replace components or parts which may in any way
!
condition the safety of the machine, only use original spare parts.
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SAFETY AND MAINTENANCE
2.1.2 FREQUENT CHECKS AND INSPECTIONS
The operating personnel must be suitably trained to be able to carry out the daily and weekly
checks indicated in TABLE 3.
The other controls described in this chapter and the interventions described in the following
chapters are reserved for qualified and authorised personnel of the technical assistance service.
TABLE 3
INTERVAL
CHECK
DAILY
Check operation of the signals, displays and LEDs
Check that the warning and danger labels are intact
CHECKS
Check that there are no oil leaks from the X-ray Tube Head
Check there is no unusual noise in the X-ray Tube Head during X-ray emission
WEEKLY
CHECKS
6-MONTHLY
CHECKS
Check the correct operation and the value of the whole earthing circuit.
Check the power supply voltage value
Check the value of the continuous voltages generated inside the system
Check fixing and general state (dust and corrosion) of the boards
2.2 GENERAL CHECKS AND INSPECTIONS
Every six months, and in any case according to local legislation in force, the procedures
indicated in the ACCEPTANCE TEST REPORT must be carried out completely. The results obtained
are noted down on the TEST SHEET together with the description of any interventions carried out.
The checks listed below must be added to those contained on the Test Sheet:
Power supply voltage check
DC power supply check
Protection earth check
Internal earth connection check
2.3 CLEANING AND DISINFECTION
The end user has to apply.
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SAFETY AND MAINTENANCE
2.4 SPECIAL MAINTENANCE
2.4.1 TROUBLESHOOTING
Troubleshooting can be facilitated by the indications given in TABLE 4, which illustrates the
most common incorrect operating conditions, showing their probable causes. In the presence of the
following alarms visualized on the display, the X-ray exposition is disqualified and the console’s
alarm red led light up. In case it is also present after the execution of the suggested intervention,
please contact the service assistance department.
TABLE 4
N°
FAULT NOTED
LIKELY CAUSE
RECOMMENDED INTERVENTION
The unit doesn’t switch on (on key LED No power supply on input
Check / Replace the S22-F2 or TR2switched on)
F24V fuse
The unit doesn’t switch on (on key LED No power supply on input
Check / Replace the S22-F1 or F1
switched off)
fuse (on input)
Check the Radiography pushbutton
2 The apparatus works but does not emit Radiography pushbutton fault
rays – No alarm on the unit display
cable and connector
+15V or –15V fault of the S22 Check power supply (+15VA/3 Alarm: “SUPPLY FAULT”
board supply
15VA/+24VA voltage on S22
voltage)
400 Hz power supply absent
Check / Replace TR2-F130V0 fuse
4 Alarm: “FILAMENT FAULT”
X-ray tube filament interrupted
Replace the X-ray tube head
S15 board fault
Replace the board
If the indication appears on stand- Carry out set-up as in Section 5 - §
5 Alarm: “INVERTER FAULT”
by: P1 Set-Up on S22 board faulty 4.2
If the indication appears while Switching off the unit, switching it on
carrying out X-ray: faulty on X-ray and repeat the X-ray
power circuit
F2 and F3 fuses blown
Replace F2 and F3 fuses
F6 and F7 fuses blown on the Replace F6 and F7 fuses
Power circuit
During a radiograph the effective Switching off the unit, switching it on
6 Alarm: “KV FAULT”
kV are less than 85% of those set: and repeat the X-ray
fault on the power circuit
During an exposure the mA value Switching off the unit, switching it on
7 Alarm: “mA FAULT”
is lower than the allowed limit
and repeat the X-ray
X-ray tube head overheated
Do not carry out any X-rays and wait
8 Alarm: “THERMIC SAFETY”
for the X-ray tube head to cool down
Breakage of the thermal sensor
Replace the thermal sensor located on
the X-ray tube head and/or check the
relevant wiring on S22 board
During a radiograph with cassette, Repeat the radiography
9 Alarm: “MAN STOP RX”
the control pushbutton for X-ray
command has been released early
Error in the high voltage generation Switching off the unit, switching it on
10 Alarm: “X-RAY LACKING”
circuit
and repeat exposure
1
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SAFETY AND MAINTENANCE
N°
FAULT NOTED
LIKELY CAUSE
11 Alarm: “MAX TIME”
RECOMMENDED INTERVENTION
14 Alarm: “BATTERY FAULT”
The radiography time has exceeded Check that the mA are correct
the concurred limit
Check the mA reading on board S22Tp1 or S19/B-Tp6
During anode preparation it was Check the fuses on board S21ACheck
not put into rotation
the stator winding of the X-ray tube
head
Fault on board S21/A
Replace board S21/A
Fault on board S20
Replace board S20
Capacitors bank still loads
With the unit off wait 1 minute before
switching it on
Power Circuit Fault
Contact technical service
15 Alarm: “OVERVOLTAGE BATTERY”
Battery Circuit Fault
16 Alarm: “X-RAY COMMAND ACTIVE”
The operator has pressed the Release the radiography pushbutton
radiography command before the and wait until the system is ready
system had finished the initial
control stage
It is not possible to begin exposure Wait for the X-ray tube to cool down.
since the remaining thermal units
available are too few
The
keyboard
does
not Switching off the unit, switching it on
communicate with the unit
and repeat exposure
Potter Fault
Check the F4 - F5 fuses of the Potter
power supply and the K3 relè
12 Alarm: “STARTER FAULT”
13 Alarm: “SWITCH OFF FOR 1 MIN”
17 Alarm: “X-RAY TUBE TOO HOT”
18 Alarm: “WAIT CONNECTION”
19 Alarm: “POTTER FAULT”
(only with Potter installed)
Contact technical service
2.4.2 REPLACEMENT OF COMPONENTS
Replacement of a component can mean the need to carry out checks and adjustments in order
to reset correct operation of the radiological unit. TABLE 5 shows typical situations where an
adjustment is necessary.
TABLE 5
COMPONENT REPLACED
15 BOARD
S19/B BOARD
S20 BOARD
ADJUSTMENT AND CHECKS
S25 BOARD
Verify mA set up in SET UP
Check of kV e mA
Check Run voltage
Check start 800 ms
Check max Set kV (P1)
Check max exposure time (P2)
Check max voltage of battery
S62 BOARD
Check LCD Display contrast (P1)
S22 BOARD
REFERENCE
SECTION 5 - § 5
SECTION 5 - § 5.1 and 8
SECTION 5 - § 2
SECTION 5 - § 4.3
SECTION 5 - § 4.1 and 4.2
SECTION 5 - § 7
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SAFETY AND MAINTENANCE
2.4.3 LIST POTENTIOMETERS
BOARD
POTENTIOMETER VALUE
NAME
NOTE
S15
5K
5K
5K
10K
10K
10K
10K
2K
2K
2K
MANUAL SET I FIL (ONLY FOR TEST)
MAX I FG
MAX I FP
S25
P1
P2
P3
P1
P2
P3
P4
P1
P2
P3
R66
P1
P2
P1
P2
P1
1K
1M
2K
100K
5K
MAX CURRENT
FREQUENCY SET
MA FLUORO OFFSET ADJ.
FEEDBACK MA ADJ
RUN VOLTAGE
START 800MS
MAX SET KV
MAX TIME RAD
MAX V CAPACITORS BANK
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
N.U.
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
Only factory adjustment
S62
P1
20K
LCD CONTRAST
Only factory adjustment
S17
S19/B
S20
S22
FEEDBACK KV+
FEEDBACK KV-
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SAFETY AND MAINTENANCE
2.4.4 LIST LEDS
BOARD
LED
COLOR
NAME
S15
LD1
LD2
LD3
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8
LD9
LD10
LD1
LD2
LD3
DL1
DL2
DL3
DL4
DL5
DL6
DL7
DL8
DL9
DL10
DL11
DL12
DL13
DL14
DL15
DL16
DL17
DL18
DL19
DL20
DL21
DL22
DL23
DL25
DL26
DL27
DL28
DL29
DL30
DL31
YELLOW
GREEN
RED
YELLOW
RED
RED
RED
RED
YELLOW
YELLOW
YELLOW
GREEN
GREEN
YELLOW
GREEN
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
GREEN
YELLOW
GREEN
YELLOW
YELLOW
YELLOW
YELLOW
GREEN
GREEN
YELLOW
GREEN
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
YELLOW
+24V
+15VA
SAFETY MAX I FIL
COM-RX
∆ KV MAX
KV > 110%
KV MIN
I MAX
COM. 1
COM. 2
PRE-RX
+15V
-15V
STARTER ON
STARTER OK
FLUORO PREP (N.U.)
N.U.
N.U.
N.U.
N.U.
N.U.
N.U.
N.U.
N.U.
STARTER OK
PREP K1A
RAD
KV 85%
POTTER OK
THERMIC
KV OK
FIL OK
PRE RX
RX
PREP K1A
START POTTER
+24VA
+24VA
ON/OFF
+24VA
CAPACITORS BANK CHANGE
CAPACITORS BANK CHARGE
OUT_WD
PREP STARTER
FP
CORR MA
S19/B
S20
S22
NOTE
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SAFETY AND MAINTENANCE
2.4.5 LIST FUSES
BOARD
NAME
TYPE
LOADING BATTERY
F2
F3
F6
F7
F1
F230V
F115V
F135V
F24V
F12V
F4V
F5V
F1
F2
F3
F1
F2
F1
F1
F2
F3
F4
F5
F6
F7
F8
F9
16A
16A
63A
63A
200MA-T
2A-T
3.15A-T
1A-T
2A-T
10A-T
2A-T
2A-T
10A-T
10A-T
500MA-T
1A-T
2A-T
80mA-T
200mA-T
200mA-T
200mA-T
200mA-T
200mA-T
200mA-T
200mA-T
200mA-T
315mA-T
INVERTER
TR1 TRANSFORMER
TR2 TRANSFORMER
POTTER BUCKY
S21/A
S22
S25
S29
NOTE
Input power supply protection
Protection Inverter
Protection TR1 Transformer
Protection TR2 Transformer
Protection Potter Bucky (Optional)
Input power supply protection S21/A Board
Protection TR1 Transformer S21/A Board
Protection Bridge Rectifier (24Vac)
Input power supply protection S25 Board
Protection Bridge Rectifier Group 1 (24Vac)
Protection Bridge Rectifier Group 2 (24Vac)
Protection Bridge Rectifier Group 3 (24Vac)
Protection Bridge Rectifier Group 4 (24Vac)
Input power supply protection S29 Board
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SAFETY AND MAINTENANCE
2.5 SPARE PARTS
In case of replacing of parts that can be negative for the safety of the machine, use only original
parts. For the list of the spare parts and relative codes to make reference to the SECTION 6 –
EXPLODED DRAWINGS.
NOTE: When you require spare parts ,it is necessary to tell the code of the piece and the serial
number of the unit too.
2.6 DISPOSAL OF DEVICE
Once the product is at the end of its use it must be disposed following the enforced rules
concerning the separate collection of waste and it cannot be treated as a simple urban waste.
The symbol
indicates that the product has the requirements requested by new directives introduced for the
environmental protection (2002/95/EC, 2002/96/EC, 2003/108/EC) and it must be disposed
properly once its life cycle is ended.
When the device has reached the end of its life it must be disposed at the proper centres for the
separate collection of electrical and electrical wastes, or it must be returned to the reseller or to the
manufacturer in case you want to replace the product with another equivalent new one.
The proper separate collection helps to avoid possible negative effect on the environment and on
health and it facilitates the second use and the re-cycle of materials of which the device is
composed of. Ask for further information to the local authorities about the areas dedicated to the
wastes disposal.
Who does not dispose the product following what here above mentioned will be responsible for the
enforced rules.
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Use of the
unit
Section 4
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USE OF THE UNIT
1 TRANSPORT
We remind that the device is assembled inside a X-ray finished equipment, therefore the final user
has to apply the indications about the transport of the unit.
2 SWITCHING ON
To connect the unit to the power supply mains, only use 16A sockets with
!
earthing terminal.
!
Do not carry out continuous switching on and off of the unit.
To make the system operational, follow the indications given below:
➠ connect the unit to the power supply mains: on unit the LED of the
control console remain lit
➠ turn the unit on
➠ the initial automatic Test of the unit will be activated immediately:
• for about 4 seconds, the display shows the version of control
software installed; all the leds light up in sequence
30 E100
R. X.XX
UNIT CONTROL CONSOLE – MESSAGES SHOWN ON SWITCHING ON
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USE OF THE UNIT
➠ successively will appear on the display the message WAITING until
the capacitors battery loading are ready, the value of the battery
voltage and the job technique.
NOTE: Before carrying out any other operation, wait until the wording “WAITING” disappears
from the display.
WAITING
250V
MAN
UNIT CONTROL CONSOLE – MESSAGES SHOWN ON SWITCHING ON
➠ the display shows the preset radiography values and the working
technic (technic preset manual), indicates the percentage of thermal
units still available (when the X-ray tube head is under starting
conditions, the display will indicate a percentage of H.U. of 100%)
➠ in this situation the machine is ready for X-ray command
➠ select the type of exposure required according to the description on
the following pages.
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USE OF THE UNIT
40
0.5
100% MAN
UNIT CONTROL CONSOLE – MESSAGES SHOWN WHEN SYSTEM IS READY
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USE OF THE UNIT
3 EMISSION OF X-RAYS
Before carrying out any exposure, make sure that all the necessary precautions
!
against radiation have been taken.
Whatever the exposure mode chosen, X-ray passage is signalled
!
by the LED lighting up.
After 30 minutes of non-use, the equipment automatically switches into stand-by
mode, that means the capacitors battery is unloaded; the words “Stand By”
appears on the display of control console and the value of the battery voltage is
!
zero. Pressing any key of control console, the battery reloads to the maximum
value and it is possible to make X-Ray exposure. During capacitors battery
loading the words “Waiting” will appear on control console display, as explained
in § 2 of this Section.
STAND BY . . .
0V MAN
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USE OF THE UNIT
3.1 EMISSION OF X-RAYS USING THE MANUAL TECHNIQUE
➠ After being switched on (SEE § 2 of this section), the unit
automatically goes into MANUAL TECHNIQUE on Low Power LP; if
you like select High Power HP use the button
➠ the preset KV and mAs values appear on the display
➠ using the KV SELECTION and mAs SELECTION up-down buttons,
set the required values for these parameters
(1)
➠ pull out the X-ray Control Push Button. This device is a doubleclick button (Click A and Click B – see figure) and must be used as
indicated below
A
B
➠ use the X-RAY CONTROL pushbutton and make the first click (A);
keep the button in this position until on the display appears the
wordings READY FOR RADIOGRAPHY and the X-ray ready LED
lights up
➠ make the second click (B) with the X-RAY CONTROL pushbutton
and keep it in that position. At that moment X-ray emission starts
and the X-ray on LED lights up
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USE OF THE UNIT
➠ at the end of X-ray emission, the X-ray ON LED turns off and the
acoustic signal stops. At this point both of the X-ray control clicks
can be released and the display shows the actual emission time.
Releasing the first click (A) too soon has no effect.
Releasing the second click (B) too soon interrupts X-ray emission; the display will
!
show the message “MAN STOP RX” for about 10 seconds and the unit will give an
alarm sound.
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USE OF THE UNIT
3.2 X-RAY EMISSION USING THE ANATOMICAL TECHNIQUE
The X-ray unit allows up to 20 anatomical techniques to be memorized for each power (LP
and HP). ANATOMIC TECHNIQUE means preset KV and mAs values which have been assigned a
more easily understood name for the user. The identifiers (i.e. the names) of each of the 20
Anatomical techniques which can be programmed on the unit are shown in table.
Programmable anatomical techniques
N°
Exam
KV
mAs
1
SKULL
75
40
2
CERVICAL
65
16
3
BACK-BONE
90
50
4
LUMBAR
95
50
5
LUNG
110
1
6
SHOULDER
70
20
7
COLLAR-BONE
70
10
8
HUMERUS
50
10
9
ELBOW
48
10
10
INFERIOR ARM
46
10
11
W RIST
42
10
12
FINGER
40
5
13
PELVIS
75
20
14
FEMORAL JOINT
70
25
15
ABDOMEN
85
16
16
FEMUR
70
16
17
KNEE
60
6.3
18
INFERIOR LEG
55
10
19
ANKLE
55
8
20
FOOT
48
6.3
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USE OF THE UNIT
It is possible to select one of the ANATOMICAL TECHNIQUES programmed previously at any time
and to use the memorized radiographic parameters. This procedure is described in the following
steps:
➠ select the power and consequently the filament which you desire to
use
➠ press the ANATOMICAL TECHNIQUE TELECTION: the LED in the
corner of the button itself will light up
➠ using the PROGRAMME SELECTION up-down type buttons, select
the anatomical technique to be used
NOTE: to make a radiography is possible to use the stored dates or change the value using the KV
SELECTION and mAs SELECTION up-down buttons. If you desire to memory the variation of the
value compare with SECTION 2 - § 2.2; differently, when you go out from the modality “Anatomical
technique” the value variation will be lost.
➠ make the exposure as described in § 3.1 X-RAY EMISSION IN
MANUAL TECHNIQUE starting from point (1).
4 OPERATIONS AFTER USE
We remind that the device is assembled inside a X-ray finished equipment, therefore the final user
has to apply the indications about the operations to effect once ended to use it.
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USE OF THE UNIT
Section 4
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X-ray settings
Section 5
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X-RAY SETTINGS
1 INTRODUCTION
The radiological system is fully regulated in the factory: it is therefore only necessary to install it in
order to use it.
All the information contained in this section and SECTION 3 of this manual must be used when
extraordinary maintenance is necessary.
In the case of any intervention, it is essential for the adjustment operations to be
!
carried out in the sequence indicated.
In TABLE 6 indicates the potentiometers which do not require any further
!
adjustments since they have already been regulated and sealed in the factory.
TABLE 6
BOARD
POTENTIOMETER
DESCRIPTION
S15
P1
P2
P3
P1
P2
P3
P4
P1
P2
P1
P2
P1
Manual Setting of the filament current
Maximum current of large focus
Maximum current of small focus
S17 (X-ray tube head)
S19/B
S22
S25
Return of the kV+
Return of the kVMaximum current
Frequency setting
Maximum kV setting
Maximum exposure time
Maximum battery voltage
NOTE : Jumper S19/B-J2A and J2B ON: safety kVmax set up for rotating anode
Jumper S19/B-J2A and J2B OFF: safety kVmax set up for stationary anode
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X-RAY SETTINGS
1.1 DIP SWITCH
Here follows the function of the dip-switch S22-SW1 pins:
1 – Only factory adjustment
6 – Only factory adjustment
2 – Only factory adjustment
7 – Only factory adjustment
3 – ON – It doesn’t display the name when switched on
8 – Only factory adjustment
4 – Only factory adjustment
5 – ON – Small Focus when switched on
2 ROTATING
ANODE
STATOR
POWER
SUPPLY
ADJUSTMENT
➠ Connect an AC voltmeter (true RMS if possible) with full-scale set
fs: 300V
at 300 V between the TB3-2 and TB3-3 test points of board S21/A
(power supply of the main winding);
TB3-2
TB3-3
➠ connect the probe of an oscilloscope between IC2-8 (+) and Dz1
Anode (-) of board S20 and prepare the instrument to read a time
of 800 ms;
➠ take the Radiography Command pushbutton.
For maximum operator safety, at this point it is advisable to temporarily disable
!
the X-ray command signal by disconnecting the wire coming from S22-X4-3.
➠ only press the first click of the Radiography Command
pushbutton (preparation pushbutton);
➠ check that the stator is supplied with a voltage of about 230 Vac
for approximately 0.8 seconds. If necessary, adjust this time
interval using potentiometer P2 of board S20;
➠ check that once the 0.8 seconds have passed the stator is supplied
with a voltage of about 70 Vac. If necessary, adjust this value by
using poten-tiometer P1 of board S20.
Section 5
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X-RAY SETTINGS
3 SET-UP PROCEDURE
To access the modality of SET-UP procedure to follow what underneath reported:
➠ press the keys of the console indicated to side at the same time
➠ the wording "SET-UP PROCEDURE ?" will appear on the display;
YES
to confirm selection, press the key indicated at the side marked
with "YES", whereas to cancel the procedure, press the key
NO
marked "NO".
NOTE: In the Set-up procedure, the functions for editing the content of the fields shown on the
display have been assigned to the keys as indicated below.
YES
+
kV
mAs
NO
-
TABLE 7 – MINIMUM, MAXIMUM AND OF DEFAULT VALUES OF SET-UP ADJUSTMENT
FUNCTION
DIRECTORY
VALUE
FILE
MINIMUM
MAXIMUM
DEFAULT
KV40
300
600
380
kV120
1000
1500
1190
150 mA (40 kV)
1000
2000
1600
75 mA (100 kV)
900
2000
1360
425 mA (40 kV)
1000
2000
1750
300 mA (100 kV)
900
2000
1560
MAS ADJ
kV 050 (50 mAs)
250
1000
530
BATTERY
V = 320
kV ADJUSTMENT
SMALL FIL. ADJ
LARGE FIL. ADJ
7.5 kW
30 kW
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X-RAY SETTINGS
3.1 SERVICE MENU
When the unit is off, pushing both the keys underneath you enter the SERVICE MENU of the unit
which subsequently visualizes the following data:
➠ name of the device and software version
➠ chosen anatomical program
➠ X-ray tube model
➠ total number of radiographic exposures
➠ total mAs accumulated.
k
mA
V
s
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X-RAY SETTINGS
4 KV ADJUSTMENT
4.1 ADJUSTMENT “SET-UP” VOLTAGE
The SET KV voltage is supplied by the microcomputer and must be adjusted according to the
relationship kV/20 (i.e.: 1V = 20kV).
➠ First of all, enter the SET-UP procedure, following the instructions
indicated in the previous paragraph;
➠ On board S19/B connect the probes of a Vdc digital multimeter
between CP1-10 (+) and TP11 (-);
➠ in Set-up select "kV ADJ at 40 kV";
kV ADJ a 40 kV
2,00 V
➠ adjust the value until a reading of 2,00 V is obtained on the
+
-
CP1-10
TP11
voltmeter;
➠ in SET-UP select "kV ADJ at 120 kV";
kV ADJ a 120 kV
6,00 V
➠ adjust the value until a reading of 6,00 V is obtained on the
voltmeter;
➠ exit the SET-UP procedure by using the key;
+
-
CP1-10
TP11
➠ then select 100 kV, 80 kV and 60 kV, checking that the voltage
read on the voltmeter is Vread = (KvSET/20) ± 25 mV.
4.2 ADJUSTMENT OF MAXIMUM KV SETTING SAFETY
The maximum parameter value of SET KV under operating conditions must be 6 V,
corresponding to 120 kV. The MAX SET KV safety device intervention is normally set to 130 KV.
➠ connect the probes of a Vdc digital voltmeter between test points
TP10 (+) and TP9 (-) of board S22;
➠ turn the system on and use potentiometer P1 until a reading of 6,5
V ± 0,1 V is obtained.
6,5 V
+
-
TP10
TP9
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4.3 CHECKING MAXIMUM KV SETTING SAFETY
➠ Connect the voltmeter to test points TP10 (+) and TP9 (-) of board
S22
➠ lower the MAX SET KV safety intervention to 100 kV adjusting
potentiometer P1 until a reading of 5 V ± 0,1 V is obtained on the
voltmeter;
5V
+
-
TP10
TP9
➠ checking that by setting the kV to a higher value than 100 kV the
"KV FAULT" alarm goes off;
6,5 V
➠ put the MAX SET KV safety intervention back to 130 kV using
potentiometer P1 again until a reading of 6.5 kV ± 0,1 V is
obtained.
+
-
TP10
TP9
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X-RAY SETTINGS
5 ADJUSTMENT OF THE FILAMENT CURRENT
The following tables indicate the mA anode values associated with the kV and the typical filament
currents determined on a sample X-ray tube head for 30 kW and 7.5 kW power.
TABLE 8
RADIOGRAPHY – 30 KW
Set kV
kV
mA
IFilament
S22: TP10 – TP9
on display
S19/B: TP6 - TP11
S15: CP6-2
[V]
[kV]
[1V=10mA]
[mA]
2
40
425
870
2,5
50
400
817
3
60
375
822
3,5
70
355
803
4
80
337
814
4,5
90
320
806
5
100
300
795
5,5
110
204
769
6
120
141
753
Pre-switching:
466
TABLE 9
RADIOGRAPHY – 7.5 KW
Set kV
kV
mA
IFilament
S22: TP10 – TP9
on display
S19/B: TP6 - TP11
S15: CP6-2
[V]
[kV]
[1V=10mA]
[mA]
2
40
150
826
2,5
50
150
777
3
60
125
757
3,5
70
107
747
4
80
93
737
4,5
90
83
727
5
100
75
716
5,5
110
68
706
6
120
62
696
Pre-switching:
471
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X-RAY SETTINGS
5.1 ADJUSTMENT OF FILAMENT CURRENT
NOTE: by Filament Current the current which runs through the primary winding of the
transformer supplying the power to the filament itself is intended (Coolidge Transformer).
➠ MEASUREMENTS
• To measure the Filament Current, connect an ammeter with true
fs: 1 A
RMS reading in series with terminal CP6-2 of board S15. Set
the full-scale to 1A in AC.
• to measure the anode mA in RADIOGRAPHY, connect the probe
CP6
1V=50mA
of an oscilloscope between test points TP6 (+) and TP11 (-) of
+
-
board S19/B to display the wave form of the mA (reading
TP6
TP11
correspondence is 1V = 50 mA) and between test points TP3 (+)
and TP11 (-) of board S19/B to display the wave form of the
kV (reading correspondence is 1V = 20 kV).
1V=20kV
+
-
TP3
TP11
➠ PROCEDURE (example with Small focus LP 7,5 kW)
• activate the SET-UP procedure;
• select "SMALL FIL ADJ";
• adjust the "DAC" value set until a filament current, displayed on
the digital voltmeter, equal to the one indicated in TABLE 9 for
40 kV (826) is obtained – Typical DAC 1600 – FIGURE 1;
• give the X-ray command and check that the anode mA are 150.
If necessary, adjust the SET-UP until the desired value is
obtained;
• proceed with SET-UP;
• adjust the set value of the "DAC" until a filament current,
displayed on the digital voltmeter, equal to the one indicated in
TABLE 9 for 100 kV (716) is obtained – Typical DAC 1360 –
FIGURE 2;
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X-RAY SETTINGS
• give the X-ray command and check that the anode mA are 75;
if necessary, adjust the SET-UP until the desired value is
obtained;
• proceed with SET-UP by selecting "LARGE FIL ADJ";
• Repeat the same operations described for "SMALL FIL ADJ"
with 40 kV and 100 kV. For the anode and filament current mA
values, refer to TABLE 8.
• Exit SET-UP.
826 mA
150mA
(40kV)
1600
FIGURE 1 – DAC (40 KV) ADJUSTMENT
716 mA
75mA
(100kV)
1360
FIGURE 2 – DAC (100 KV) ADJUSTMENT
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X-RAY SETTINGS
6 mAS ADJUSTMENT
➠ MEASUREMENTS
• Remove the bridge between terminals CP3-1 and CP3-3 of
board S19/B
• connect a mAsmeter between the above-mentioned terminals.
➠ PROCEDURE
• activate the SET-UP procedure
• select "mAS ADJ" and give the X-ray command
• check that the mAs value on the instrument is really the one set
(50 mAs – Typical DAC 0530); If necessary, adjust the SET-UP
until the desired value is obtained
50 mAs
+
-
CP3-1
CP3-3
• exit SET-UP.
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X-RAY SETTINGS
7 ADJUSTMENT OF THE BATTERY VOLTAGE
➠ MEASUREMENTS
• To measure the battery voltage, connect a voltmeter with true
RMS reading between terminals CP2-1 (+) and CP2-3 (-) of
board S25.
320 V
+
-
CP2-1
CP2-3
Warning: presence of 320 Vdc voltage
!
➠ PROCEDURE
• activate the SET-UP procedure;
• select "V BATTERI ADJ";
• Adjust the Set-up until the point in which the battery voltage
measure value, reaches the battery voltage set value (tip. 320V);
• exit SET-UP.
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X-RAY SETTINGS
8 CHECKING THE RADIOGRAFIC PARAMETER
After having completed the operations indicated in the previous paragraphs (§ 2, § 4, § 5), it is
necessary to check the values of the signals proportional to the kV and to the mA which come from
the INVERTER. The tolerance for the kV signal is ± 5% whereas for the mA it is ± 15%.
NOTE: If the kV value is not correct, it is necessary to repeat the SET kV adjustment.
NOTE: An oscilloscope with two channels is required for the checks below.
8.1 CHECKING KV AND mAs DURING RADIOGRAPHY
➠ Connect the probe of the oscilloscope as indicated below:
Ch. A
CHANNEL A: TP3 (+) – TP11 (-) of board S19/B (REAL kV);
TIME BASE: 10 ms
+
-
TP3
TP11
➠ If necessary, connect the probe of the oscilloscope as indicated
Ch. B
below:
CHANNEL B: TP6 (+) – TP11 (-) of board S19/B (mA);
+
-
TP6
TP11
TIME BASE: 10 ms
➠ set the minimum value of the kV (40 kV – 425 mA)
➠ give the X-RAY command and check that the values read on the
oscilloscope correspond with those indicated in TABLE 10;
(FIGURE 3 shows an example of a 100 kV wave form)
➠ repeat the previous operations, setting the kV values to 80 kV and
120 kV for 7.5 kW power.
TABLE 10 – 30KW
kV
mAs
mA
Time (s)
Set
Acceptance range
S19: TP3 - TP11
[1V = 20 kV]
Set
Acceptance range
(±10%)
40
38 ÷ 42
16
14.5 ÷ 17.5
425
0.037
80
76 ÷ 84
16
14.5 ÷ 17.5
337
0.047
120
114 ÷ 126
16
14.5 ÷ 17.5
141
0.113
Theoretical Theoretical
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X-RAY SETTINGS
TABLE 11 – 7.5KW
kV
mAs
mA
Time (s)
Set
Acceptance range
S19: TP3 - TP11
[1V = 20 kV]
Set
Range di accettazione
(±10%)
40
38 ÷ 42
8
7.2 ÷ 8.8
150
0.053
80
76 ÷ 84
8
7.2 ÷ 8.8
93
0.086
120
114 ÷ 126
8
7.2 ÷ 8.8
62
0.129
Theoretical Theoretical
FIGURE 3 – ACQUISITION OF THE KV WAVE FORMS DURING RADIOGRAPHY [100 KV – 16 MAS – 30 KW]
FIGURE 4 – ACQUISITION OF THE MA WAVE FORMS DURING RADIOGRAPHY [100 KV – 16 MAS – 30 KW]
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Drawings
Section 6
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DRAWINGS
Index
Document n°
Electrical diagrams
Electronic group 100
8795
S15 board – filament power supply
7616
S17 board – X-ray tube head interface
7548
S19/B board – inverter control
7617
S20 board - X-ray tube stator starter
7618
S21/A board – X-ray tube stator rotation
7619
S22 board – microprocessor
7620
S25 board – capacitors bank control
7621
S62/A board – keyboard interface
8202
S29 board – inverter control
7623
Topographic diagrams
S14 board – line filter
630
S15 board – filament power supply
7961
S17 board – X-ray tube head interface
4617
S19/B board – inverter control
7822
S20 board - X-ray tube stator starter
46
S21/A board – X-ray tube stator rotation
457
S22 board – microprocessor
1401
S25 board – capacitors bank control
1419
S62/A board – keyboard interface
8203
S29 board – inverter control
1420
Exploded views
Mechanical
7698
Electrical
7862
Section 6
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Section 5
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