
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.
| Parameter | Value |
|---|
Ask us about this model. Send us the rated values of your circuit and the supply voltage; we confirm the ordering code, wiring diagram and register list within one working day.
| 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 | |
| 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) | |
| Auxiliary power | Voltage | AC 85~265V, DC 100~350V |
| 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 group 2kV/1min(AC, RMS) | |
| Average work time without stoppage | ≥50000h | |
| Working condition (controller) | Temperature | -20℃~+60℃ |
| Humidity | ≤95%RH, without condensation and corrosive gas | |
| Altitude | ≤2500 m | |