PD319-WHD series Temperature & Humidity Controller adopt digital temperature and humidity sensor, LED display temperature and humidity value, fitted with fan contact and heater contact, heater (fan) broken wire alarm, sensor faults display function etc. Fitted with RS485 communication port or alarm switch value output, to realize remote transmitting parameters of ambient temperature, humidity, working condition to the supervisory computer, this product is suitable used for the unattended substation. Customer can set the limits of temperature, humidity; switch display mode setting, communication parameter etc by using the button in the panel.    PD319-WHD series products have advantages of strong anti-interference capacity, high reliability and meet the requirements of GB/T 15309-1994. the button in the panel.

Technical Data

Measuring range Temperature -40.0℃~+99.9℃ Humidity 1%~99% Accuracy Temperature ±1℃ Humidity ±4% Technical Specifications Data Control parameter setting range Heating for temperature rising -40.0℃~+40.0℃ Blowing for temperature decreasing 0.0℃~+100.0℃ Temperature control 1%-99% Balance value 0~40(℃or %) Capacity of contact output AC250V/5A Communication interface RS485, MODBUS(RTU) protocol Insulation resistance ≥100MΩ Power frequency voltage withstand Power and the metalwork of case/power and connectors 2kV/1min (AC, RMS) Mean time between failures ≥50000 h Operation ambient (controller) Temperature -10℃~+55℃ Humidity ≤95%RH, no dew, no corrosive gas Height above sea level ≤2000 m