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.
Auxiliary power supply
AC 85-265V, DC 100-350V
Auxiliary power supply:
Basic power consumption(≤0.8w)
Relay power consumption(each channel≤0.7w)
Pannel size (L×W): 75*75mm
Cutout size (L×W): 67*67mm
Housing (L×W×H): 66*66*92mm
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 Set 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/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 hours Working condition(controller) Temperature -20℃~+60℃ Humidity ≤95%RH,without condensation and corrosive gas Altitude ≤2500m
Q: Connect users between the sensor and the controller,Can it be matched?How long is the length in meters?
A: The user can wire,but it is required to use a 4-core shielded wire,and a 2.5-meter shielded wire is attached to the factory.
The longest distance between the sesor and the controller is 20 meters.
Q: Can WHD Switch control manually and automatically?
A: Yes,but be sure to explain to the customer service before placing an order,it is an unnormal operation.
Q: User have their own sensor,can they buy a controller?
A: No,the sensor and controller need to be used together,2 device can not sold seperately.
Package dimensions(1 PC)
Pakage Weight(2 PC)
WHOLE BOX PAKAGE
Pakage Weight(48 PCS)
PRODUCT HS CODE
The above packing and weight data are only refer to model WHD72-22.
For other models or optional functions, please contact the salesman for details, thank you for your cooperation!
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