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About constant temperature and humidity test chamber | testing machine

  • 2017-05-10
  • 2050

First, about the test box constant temperature and humidity

Constant temperature and humidity testing machine (box): It is a test box that combines high temperature, low temperature and damp heat. The high and low temperature wet heat alternating test chamber is more difficult to repair than other environmental testing equipment. Let's take the high-low temperature damp heat alternating test chamber as an example. Let's talk about the structure of the constant temperature and humidity test chamber and some common faults and troubleshooting methods.

Second, the construction of constant temperature and humidity test chamber:

The constant temperature and humidity test chamber is composed of a box body, a wind circulation system, a refrigeration system, a heating system and a humidity control system. The air circulation system generally adopts a structure that can adjust the direction of air supply; the humidification system adopts two types of boiler humidification and surface evaporation; the cooling and dehumidification system adopts an air conditioning working condition refrigeration structure; the heating system adopts electric heating fin heating and electric furnace direct heating. Structure; temperature and humidity test method adopts dry and wet ball test method, and also uses humidity sensor direct measurement method; control and display operation interface adopts temperature and humidity separation independent and temperature and humidity combination controller.

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