| Accuracy: | Temperature ±1℃, Humidity ±5%RH |
| Advertisement: | LED display |
| Communication: | RS485 (Modbus RTU) |
| Auxiliary power supply: | AC 85–265 V, DC 100–350 V |
| Consumption: | Base power consumption (≤ 0.8 W), relay power consumption (each channel ≤ 0.7 W) |
| Dimensions (L x W x H): | Panel size (L x W): 75 x 75 mm Cutout size (L x W): 67 x 67 mm Housing (L x W x H): 66 x 66 x 92 mm |
| Installation: | Panel mounting |
WHD72-22 Temperature and Humidity Controller
The Acrel WHD72-22 temperature and humidity controller is a digital controller for relative humidity and temperature. Its two relay outputs can be independently configured as control or alarm, either for temperature or relative humidity. The features of a specific model (mains connection, digital communication, etc.) are indicated on the label on the thermostat housing.
Product info
Technical data
| Technical parameters |
Value
|
|
| measuring range |
temperature
|
-40.0℃～99.9℃
|
| moisture |
0%RH～99%RH
|
|
| precision |
temperature
|
±1℃
|
| moisture |
±5%RH
|
|
| Transmit output |
DC 4～20mA or DC 0～20mA
|
|
|
Setting the control parameter range
|
Heating to increase temperature |
-40.0℃～40.0℃
|
| Bubbles to reduce temperature |
0.0℃～99.9℃
|
|
| Humidity control |
20%RH～90%RH
|
|
| Output contact capacity |
5A/AC250V
|
|
| Start/stop gap | 5 | |
| communication port |
RS485, MODBUS (RTU)
|
|
| Auxiliary energy | voltage |
AC 85-265V
DC 100～350V
|
| consumption | Base power consumption (≤ 0.8 W); relay power consumption (each channel ≤ 0.7 W) | |
| Insulation resistance |
≥100MΩ
|
|
| Power frequency withstand voltage | Performance with housing, accessible metal parts/ Power with other connection groups 2 kV/1 min (AC, RMS) |
|
| Average working hours without interruption |
≥50000h
|
|
|
Operating state (controller))
|
temperature
|
-20℃～+60℃
|
| humidity |
≤95%RH, relative humidity, without condensation and corrosive gases
|
|
| Height |
≤2500 m
|
|
Product display
