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WH (D) series temperature and humidity controller
时间: 2018-10-23 16:02 浏览次数: 来源:澳客比分直播即时比分

  1. Overview of temperature and humidity controller

  The temperature and humidity controller products are mainly used for the adjustment and control of the internal temperature and humidity of medium and high voltage switchgear, terminal box, ring network cabinet, box change and other equipment. It can effectively prevent equipment failure caused by low temperature and high temperature, as well as creepage and flashover accidents caused by moisture or condensation. Products are divided into: WH common 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. There are heaters, sensor fault indications, transmission functions, 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 measurement and control instrument suitable for various industries and fields.

  2, temperature and humidity controller product introduction

  2.1 WH series ordinary temperature and humidity controller

  2.1.1 Model Description


  Note 1: “Combination external connection” means that when there is temperature and humidity control at the same time, the sensor is placed in the same casing, and temperature and humidity information are collected from the same point.

  2.1.2 Technical Specifications



  Note: The control parameters are not adjustable, but can be specified by the user.

  2.1.3 Product Specifications

  WH common temperature and humidity controller


  Note: 1. “□” is type 03, type 48, type 46 temperature and humidity controller;

  2. The heater or fan is not included after the selected model of the controller, and must be purchased separately;

  3. The connecting wire between the controller and the sensor can be used with ordinary wires, and the length must not exceed 20 meters.

  2.1.4 Shape and size (unit: mm)

  ●WH03 ordinary temperature and humidity controller


  ●WH48 ordinary temperature and humidity controller


  ●WH46 ordinary temperature and humidity controller


  2.1.5 Terminal Blocks

  ●WH03 ordinary temperature and humidity controller




  ●WH46 ordinary temperature and humidity controller



  Note: Terminals 3 and 4 are terminals for relay output.

  2.2 WHD Series Intelligent Temperature and Humidity Controller

  2.2.1 Model Description


  2.2.2 Technical Specifications


  2.2.3 Product Specifications


  Note: 1. Each sensor corresponds to two sets of control output contacts (passive), which are respectively connected to heaters and fans;

  The heater is used to warm or dehumidify, and the fan is used to cool down;

  2. The length of the connecting line between the sensor and the controller must not exceed 20 meters.

  2.2.4 Shape and size (unit: mm)

  ●WHD48/72/96 temperature and humidity controller


  ● WHD46 temperature and humidity controller

  ●WHD90R temperature and humidity controller

  2.2.5 Terminal Blocks

  ●WHD46 temperature and humidity controller

  Note 1: Instrument terminals 30, 31, 32 are optional function output terminals: fault alarm, communication, and transmission output are selected.

  ●WHD48/72/90R temperature and humidity controller

  Note 1: Instrument terminals 30, 31, 32 are optional function output terminals: one of fault alarm, communication, and transmission output, except for WHD48.

  ●WHD96 temperature and humidity controller

  Note 1: Instrument terminals 30, 31, 32 are optional function outputs: one of fault alarm, communication, and transmission output.

  3, accessory sensor

  3.1 Overview

  The WH series common temperature and humidity controller and the WHD intelligent temperature and humidity controller are all connected externally. The sensor part adopts a special outer casing, which has good ventilation effect and exquisite appearance, which can effectively protect internal components, improve service life, and facilitate installation and wiring.

  3.2 Model Description

  3.2.1 WH series ordinary temperature and humidity controller sensor

  3.2.2 WHD Series Intelligent Temperature and Humidity Controller Sensor

  4, accessory heater

  4.1 Overview

  ALW series heaters are made of special aluminum alloy heat sink profiles and high-quality nickel-chromium alloy heating wires. They are small in size, beautiful in appearance, uniform in heat dissipation, fast in heat conduction, large in heat dissipation area and long in life. The products conform to GB/ T15470-1995.

  4.2 Technical Specifications

  4.3 Product Specifications

  4.4 Selection recommendations

  The aluminum alloy material has large heat dissipation area and high efficiency, and is suitable for completely automatic control of heating or dehumidification. The selection suggestions are as follows:


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