| 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): 48*48 mm Cutout size (L x W): 45*45 mm Housing (L x W x H): 44*44*86.7 mm |
| Installation: | Panel mounting |
WHD48-11 Temperature and Humidity Controller
The Acrel WHD48-11 temperature and humidity controller can simultaneously control both temperature (heating or cooling) and humidity (humidification or dehumidification). Simply plug the power cords of your heater/cooler and/or humidifier/dehumidifier directly into the controller's power outlets.
Product info
Technical data
A notice:
(1) The number of temperature, humidity or temperature sensors to be connected to WHD48, WHD72, WHD20R and WHD46 is 1, 2 or 3 respectively.
(2) Each sensor has two (passive) control output contacts, each connected to a heater and a fan. The heater is used to increase the temperature or remove moisture, and the fan is used to decrease the temperature.
(3) Additional functions of the WHD46: RS485 communication, alarm output, and transmission function. Only one function can be selected.
Additional function of the WHD48: RS485 communication.
Additional functions of the WHD72 include alarm output, RS485 communication, and transmission function. Only the latter two functions can be selected.
Additional functions of the WHD2OR include RS485 communication and alarm output. Both functions can be selected simultaneously.
“-C” for communication, “-J” for alarm and “-M” for transmission.
(4) The connecting cable between the sensor and the controller must be a four-wire, shielded cable. The maximum length must not exceed 20 m.
| 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
