WHD72-22 Smart Temperature and Humidity Controller
General
WHD series smart temperature and humidity controller is suitable for adjustment and control of temperature and humidity in equipment of high voltage switchgear, terminal box, ring network panel, box transformer substation etc. It can effectively protect relevant equipment from faults resulting from excessive low or high temperature, creepage or flashover etc.from humidity or condensation.
Features
Wiring Mode
Typical connection
Site installation pictures
Technical parameter
|
Technical parameter |
Value |
|||
|
Measuring range |
Temperature |
-40.0℃～99.9℃ | ||
|
Humidity |
0%RH～99%RH | |||
|
Precision |
Temperature |
±1℃ | ||
|
Humidity |
±5%RH | |||
|
Transmitting output |
DC 4～20mA或DC 0～20mA | |||
|
Set range of controlling parameter |
Heating for Temperature rising |
-40.0℃～40.0℃ | ||
|
Blowing for temperature decreasing |
0.0℃～99.9℃ | |||
|
Humidity control |
20%RH～90%RH | |||
|
output contact capacity |
5A/AC250V | |||
|
Start/stop gap |
5 | |||
|
Communication port |
RS485,MODBUS(RTU)协议 | |||
|
Auxiliary power |
Voltage |
AC 85～265V
DC 100～350V |
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|
Consumption |
Basic power consumption(≤0.8w)；
relay power consumption(each channel≤0.7w) |
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|
Insulation resistance |
≥100MΩ | |||
|
power-frequency withstand voltage |
power with shell,touchable metal parts/
power with other terminal group 2kV/1min(AC,RMS) |
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|
average work time without stoppage |
≥50000h | |||
|
Working condition (controller) |
Temperature |
-20℃～+60℃ | ||
|
Humidity |
≤95%RH，without condensation and corrosive gas | |||
|
Altitude |
≤2500 m | |||
