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 |
0.0℃~99.9℃ |
|
|
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 meter for sale, if you are interested, please leave us a message.
Contact : rel Ac, 86 21 69156352
Good deal: buying from seller
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
|
This page is about importers and exporters of WHD20R-22 Digital Temperature & Humidity Controller Search in a category : Craft Search in a category : temperature, digital, humidity, whd20r, controller |
334 Equipment goodsReport abuse
Tuesday, March 03, 2026
Quantity : 50
Tabletop Tablet / Capsule Counting Machine TC-100 is design for accurate counting and bottle filling of all kinds of tablets and capsules. FEATURES: - PLC control system. Easy operation by Touch screen - Highly accurate Counting Speed - Flap Nozzle for Non-Stop counting - Dust...
Autopack Co.,Ltd
- autopacker
- 33454 - Taoyuan City
- +88 6 33 68 98 06
Cosmetics and beautyReport abuse
Saturday, January 03, 2015
Mega Power Dampfbesen 5in1 H20 Technologie Apfelgrün/Weiss 5 in 1 Steam Cleaner Böden Teppichen Fenster Höhepunkte: Sie erhalten hier von uns einen effizienten sowie hochqualitativen Steam Cleaner. Mit Wasser füllen, das spezielle Mikrofaser-Reinigungstuch anbringen und das Gerät...
Euro-Sino
- - Thun
214000 Equipment goodsReport abuse
Monday, May 05, 2014
Wuxi Hengtong Petrolic Machinery is founded in 1997 and located in beautiful Taihu lake of Wuxi province. Hengtong concentrates research, manufacturing and sale as one whole. Now, it has assets of 50 million yuan, more than 200 employees, of which 20 engineers and technicians and...
Wuxi hengtong petrolic machinery Co.,LTD
- andy.liang
- 214000 - Wuxi
- +86 15906185129
