Dehumidification control temperature and humidity controller

Dehumidification control temperature and humidity controllerThe product is mainly used for medium and high voltage switchesThe internal temperature of equipment such as cabinets, terminal boxes, ring main units, and box transformersHumidity regulation control. Can effectively prevent damage caused by low and high temperaturesThe occurrence of equipment failures, as well as creepage and flashover accidents caused by moisture or condensation.

The temperature and humidity controller mainly consists of sensors, controllers, and additivesThe heater (or fan, etc.) consists of three parts, and its working principle is shown in the following figure:

Dehumidification control temperature and humidity controllerSensors detect temperature and humidity information inside the box and transmit it toThe controller analyzes and processes the temperature and humidity inside the boxWhen the degree reaches or exceeds the pre-set value, the relay in the controllerThe electrical contacts are closed, and the heater (or fan) is powered onStart working, heating or blowing air inside the box, etc; a period of timeAfterwards, if the temperature or humidity inside the box deviates from the set value, the controller willRelay contacts open, heating or blowing stops. Except for basic skillsDifferent models also come with wire breakage alarm output and transmission outputAuxiliary functions such as output, communication, and forced heating and blowing.

Model Description:

Note:

WHD48, WHD72, WHD2OR, and WHD46 can be connected to up to 1, 2, and 3 temperature and humidity sensors respectively;

2. Each sensor corresponds to two control output contacts (passive), which are respectively connected to a heater and a fan. The heater is used for heating or coolingWet, fans are used for cooling;

The auxiliary functions of WHD46 include RS485 communication function, alarm output function, and transmission function, and only one of the three can be selected;The auxiliary functions of WHD48 include: RS485 communication function;The auxiliary functions of WHD72 include alarm output function, RS485 communication function, and transmission function, and only one of the latter two can be selected;The auxiliary functions of WHD2OR include RS485 communication function and alarm output function, both of which can be selected simultaneously;- C "represents communication," - J "represents alarm, and" - M "represents transmission;

4. The connection wire between the sensor and the controller must use a four core shielded wire, with a maximum length of no more than 20 meters.