WHD Series Smart Temperature and Humidity Controller Meter
1. Overview
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.Products are divided into: WH general series, WHD intelligent series.
The ordinary temperature and humidity controller is made of imported polymer temperature and humidity sensor,combined with stable analog circuit and switching power supply technology.The working status of relay action,heater fault power supply and so on are all indicated by LED.The user can see at a glance,the product is stable and reliable,and can work in harsh environment such as strong electromagnetic field for a long time.
The intelligent temperature and humidity controller displays the temperature and humidity values in digital tube mode.It has heater,sensor fault indication,transmission function,and RS485 communication interface for remote monitoring.Users can set system parameters by button programming.The instrument set integrates measurement, display,control and communication ,with high precision and wide measuring range.It is a temperature and humidity measuring and controlling instrument suitable for various industries and fields.
These products meet the requirements of GB/T 15309-1994.
2. Model Description
Notes：
1.Every sensor match with two control output contacts(passive), connected with heater and fan respectively,the heater is used for rising temperature or removing moisture,the fan is used for decreasing temperature;
2.RS485 communication,alarming output function and analog output function.Only one can be selected.
3.The maximum length of the connecting wire between the sensor and the controller should not exceed 20m.
3. Technical Data
Start/stop gap: In the control process,for the execution part (heater or fan) , the difference between starting temperature( humidity) and stopping temperature (humidity).
4. Product Functions
Note:WH-M measurement range is temperature -25.0℃～+80.0℃,humidity 20%RH～90%RH.
5. Accessories
Temperature and humidity sensor
Heater
6. Wiring
WHD48
WHD72
WHD96
WHD46
WHD10R
