The constant temperature and humidity box is a high-precision instrument. Be sure to pay attention when buying.

First, the size of the choice of general temperature and humidity size to determine the size of the test product Second, constant temperature and humidity box power supply selection whether it is 220V or 380V are three-phase or more power interface, if the temperature is below -40 degrees, and the box in Above 225L, it is recommended to select the 380V four-phase power interface, because it is relatively stable for the entire laboratory, and it is also good for the life of the equipment itself;

Third, the air-cooled and water-cooled options: constant temperature and humidity boxes generally use air cooling is sufficient, using water-cooled is generally a large constant temperature and humidity chamber or large box of rapid temperature tester, general cold and hot shock test box water-cooled There are many; Fourth, the use of environmental humidity testing constant temperature and humidity environment, especially reliability test, the test cycle is long, the test object is sometimes a very high value of military products, testers, testers often have to operate around the scene Or test work, therefore requires environmental testing equipment must have the characteristics of safe operation, easy operation, reliable use, long working life, etc., to ensure the normal operation of the test itself. All kinds of protection and alarm measures and safety interlock devices of the test equipment shall be perfect and reliable to ensure the safety and reliability of the test personnel, the tested products and the test equipment itself.

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