Customization: | Available |
---|---|
Brand: | Acrel |
Display Type: | LED |
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WHD series smart temperature and humidity controller is suitable for adjustment and control of temperature and humidity in equipments 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.
Technical Parameter
|
Value
|
|
Measuring Range
|
Temperature
|
-40.0ºC~99.9ºC
|
Humidity
|
0%RH~99%RH
|
|
Precision
|
Temperature
|
±1ºC
|
Humidity
|
±5%RH
|
|
Transmitting Output
|
DC 4-20mA or DC 0~20mA
|
|
Ser range of controlling parameter
|
Heating for Temoerature rising
|
-40.0ºC~40.0ºC
|
Blowing for temperature decteasing
|
0.0ºC~99.9ºC
|
|
Humidity control
|
20%RH~90%RH
|
|
Output Contact Capacity
|
5A/AC250V
|
|
Start/stop gap
|
5
|
|
Communication port
|
RS485,MODBUS(RTU) treaty
|
|
Auxiliary Power
|
Voltage
|
AC/DC 85-265V
|
Consumption
|
Basic power consumption(≤0.8w)+relay power consumption(each channel≤0.7w)
|
|
Insulation Resistanced
|
≥100MΩ
|
|
Power-frequency withstand voltage
|
power with shell,touchable metal parts/power with other terminal group 2kV/1 min(AC.RMS)
|
|
Average work time without stoppage
|
≥50000 houts
|
|
Working condition(controller)
|
Temperature
|
-20ºC~+60ºC
|
Humidity
|
≤95%RH,without condensation and corrisive gas
|
|
Altitude
|
≤2500m
|
Product Name | Function Description | Optional Functions |
WHD48-11 | LED display; Measure display and control 1 channel temperature and humidity |
/C:RS485 communication |
WHD72-11 | LED display; Measure display and control 1 channel temperature and humidity |
/J: relay alarm output /C:RS485 communication /M: analog output(DC4-20mA) /UT:Utility Tunnel (M & C cannot be select at the same time) |
WHD72-22 | LED display; Measure display and control 2 channels temperature and humidity |
|
WHD20R-11 | LED display; Din rail mount Measure display and control 1 channel temperature and humidity |
/J: relay alarm output /C:RS485 communication (C&J can be selected at the same time) |
WHD20R-22 | LED display; Measure display and control 2 channels temperature and humidity |
|
WHD46-11 | LED display; Measure display and control 1 channel temperature and humidity |
/J: relay alarm output /C:RS485 communication /M: analog output(DC4-20mA) (Choose one from above three) |
WHD46-22 | LED display; Measure display and control 2 channels temperature and humidity |
|
WHD46-33 | LED display; Measure display and control 3 channels temperature and humidity |