WHD20R-22 Digital Temperature & Humidity Controller
The controller for temperature and humidity 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. These products meet the requirements of GB/T 15309-1994.
Technical Parameters of WHD20R-22 Digital Temperature and Humidity Controller
How to Wire a WHD20R-22 Digital Temperature & Humidity Controller
WHD20R-22 Digital Temperature & Humidity Controller Applications
|
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 or DC 0~20mA |
|
|
Ser range of controlling parameter |
Heating for Temperature rising |
-40.0℃~40.0℃ |
|
Blowing for temperature decreasing |
||
|
Humidity control |
20%RH~90%RH |
|
|
Output Contact Capacity |
5A/AC250V |
|
|
Start/stopgap |
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 Resistance |
≥100MΩ |
|
|
Power-frequency withstand voltage |
power with shell, touchable metal parts/power with other terminal groups 2kV/1 min(AC.RMS) |
|
|
Average work time without stoppage |
≥50000 hours |
|
|
The working condition(controller) |
Temperature |
-20℃~+60℃ |
|
Humidity |
≤95%RH, without condensation and corrosive gas |
|
|
Altitude |
≤2500m |
|
As a power meter manufacturer, we can provide kinds of dc power meterfor sale, if you are interested, please leave us a message.
在线联系供应商
Other supplier products
 |
ADL400 | Acrel ADL400 din rail 3 phase energy meterhas the functions of measure U, I, P, Q, S, PF and F. ADL400 can be widely used in EV charging pile appli... |
 |
AM5 Medium Voltage Motor Protection Relay | AM5 Medium Voltage Protection Relays Acrel middle voltage protection relay has the protection functions of power distribution system such as lin... |
 |
ADL200 | Single phase bidirectional electrical din rail energy meter220V output RS485 Modbus.The ADL200single phase energy meter with rs485adapts to wide vo... |
 |
DC Power Meter | DC current meters support bi-directional current measurement making it an exceptional tool for monitoring solar PV inverter and wind turbine power ... |
 |
Split Core Current Transformer | Split Core Current Transformer The appearance is nice and the installation and wiring are convenient. AKH-0.66/K-Φ series split type cttrans... |
Same products
 |
CNC Machining | 卖方: Changzhou Fenglan New Materials Co., Ltd. | CNC precision parts machining is a core technology in modern manufacturing. It uses computer nu... |
 |
Wireless Temperature Measurement | 卖方: Acrel Co.,Ltd. | ARTM-Pn wireless temperature measurement device: ARTM-Pn wireless temperature measurement device ... |
|
|
WHD20R-22 Digital Temperature & Humidity Controller | 卖方: Acrel Co.,Ltd. | The controller for temperature and humidity is suitable for adjustment and control of temperature... |
 |
Temperature & Humidity Controller | 卖方: Acrel Co.,Ltd. | Digital Temperature and Humidity Controller for Sale The WHD series temperature and humidity con... |
 |
Prepayment Energy Meter | 卖方: Acrel Co.,Ltd. | The electronic prepaid electric energy meter adopts a guide rail installation structure and has t... |
