Ⅴ 、 The Installation Instruction Of Temperature And Humidity Sensor`s Shielded Wire When the sensor is being installed, the following two methods are recommended to achieve reliable connection between the sensor`s shielded ground and the cabinet. The detailed process is shown in following pictures. Method 1: The earth terminal is mounted directly on the surface of the cabinet,using self-tapping screw. CG239CD-TH Digital Temperature And Humidity controller CG239CD-TH digital temperature and humidity intelligent control instrument is a kind of special equipment designed to control temperature and remove moisture for electric power equipment in the cabinet. It is especially suitable for requipment required to be higher temperature and humidity control quality, such as relay protection tank, meter boxes, measurement, etc. The equipment digitally displays the temperature and humidity in the interior of the controlled cabinet. With the buttons on the panel, we can set the two temperature control point value (t1L, t2L) and two humidity control point value (H-1,H-2), and then we can automatically start or stop the heater. The instrument shows the current state by the indicator lights on the panel. Ⅰ、The Main Technical Characteristics Method 2: Put the screw through the earth terminal and the sensor`s installation hole. Then fasten the screw in the surface of the cabinet. 1. 2. 3. 4. 5. CHANGZHOU CHANGGONG ELECTRONIC INSTRUMENT CO. LTD. 6. 7. CHANGZHOU PACIFIC AUTOMATION TECHNIQUE CO., LTD.. Address: Innovation and Technology Building North B2 , Changzhou National Hi-Tech District Zip Code:213022 Telephone(Fax) : 0519-85103968,85109809 Foshan Office:0757-83380187 E-mail:sales@tpy.cn Http://www.tpy.cn 8. Temperature indicators:-20℃~100℃,±1℃ Humidity indicators:20%RH~99%RH,±5%RH Heating start-up conditions:Temperature display value≤Temperature low limits or Humidity display value≥Wet and heat setting value Heating exit conditions: Temperature display value≥Temperature low limits+10℃ and Humidity display value < Wet and heat setting value-10%RH;when the temperature is higher than 50℃,stop heating Output contacts : Two pairs load output AC220V/3A (It can work with heater or Ac fan) Work environment : Temperature: -10~50℃; Humidity : <95%RH Power supply :AC100V~AC250V/60HZ/50HZ; Power consumption :≤10VA Serial communication Interface standards:RS485; half-duplex; The largest network:255; Communication rate:4800 bit/s; Distance:≤1000m; 9. Dimension: 96×96×113 mm 10. Hole size: 92×92 mm 11. Sensor: Temperature sensor, Linear humidity sensor (Usually, they are installed together. But,according to the customen needs,they can installed separately.) 12. Sensor dimension : 75×55×18mm,Cable length: 2.5m(It can be chosen by users) 7. 8. Ⅱ、Instructions 1. 2. 3. 4. 5. 6. Fixed instrument and Wired according to the wiring diagram, Power-confirmation, After self-diagnosis display "8", the LED displays Temperature and humidity. If the temperature and humidity sensor connection is error, it display "---". Set the temperature and humidity sensor 1 temperature Lower limit value t1L. Press and hold the SET button for 2 seconds to enter the set t1L state, all bright lights, then the humidity line display t1L can set the temperature Lower limit. Press △ or ▽ to change the lower limit, to achieve the required values. (Temperature limit setting range is-20℃~50℃) Set the temperature and humidity sensor 2 temperature Lower limit value t2L. After setting t1L, press the SET button to enter the set t2L state, then the temperature line display t2L ,press △ or ▽ to change the lower limit. (Temperature lower limit setting range is -20℃~50℃) Set the temperature and humidity sensor 1 humidity upper limit value H-1. After setting t2L, press the SET button to enter the set H-1 state, then the humidity line display H-1, press △ or ▽ to change the humidity setting. (Humidity upper limit setting range is 20%RH~99%RH) Set the temperature and humidity sensor 2 humidity upper limit value H-2. After setting H-1, press the SET button to enter the set H-2 state, then the humidity line display H-2 ,press △ or ▽ to change the humidity setting. (Humidity upper limit setting range is 20%RH~99%RH) Set the machine number Add. After setting H-2, press the SET button to enter the set machine number state, then the downlink display Add ,press 9. △ or ▽ to change the machine number setting. (Machine number limit setting range is 1~255) Exit the set state. After set the required parameters, press and hold the SET button to exit the set state into the monitoring state. The instrument will perform temperature control, dehumidification automatically based on the setting values. Indicator: temperature and humidity 1 indicator light shows currently displayed sensor 1 data; temperature and humidity 2 indicator light shows currently displayed sensor 2 data; Heating 1 lamp light indicates the measured temperature is less than the t1L, or the measured humidity 1 is greater than the H-1, heat 1 is turned on; heating 2 lamp light indicates that the measured temperature is less than t2L, or measured humidity greater than H-2, heat 2 open. Instrument factory set initial values : t1L is 5 ° C, t2L is 5 ° C, H-1 is 80% RH, H-2 is a 80% RH, machine number (Add) is 1. Ⅲ、Panel Diagram Ⅳ、The Wiring Diagram of the Back Panel ※Note:Users can make special requirements on the length of the sensor cable or control mode in advance, in order to change the design in accordance with them.