What are the functions of the constant temperature and humidity test chamber?

First, cooling capacity. An important part of the constant temperature and humidity test chamber is also an important parameter for judging the performance of the test chamber. It includes four major components: compressor, condenser, throttling device and evaporator. The compressor is the heart of the refrigeration system. It inhales low-temperature and low-pressure gas, turns it into high-temperature and high-pressure gas, condenses into liquid and releases heat, which is taken away by a fan. Therefore, the hot air is the reason for the hot air under the test chamber, which is then throttled into a low pressure liquid, then passed through the evaporator to become a low temperature and low pressure gas, and then returned to the compressor. The refrigerant absorbs heat in the evaporator to complete the gasification process, and then absorbs heat to achieve the purpose of refrigeration, completing the cooling process of the test chamber.

 Second, the heating capacity. The heating device is the key link to control whether the constant temperature and humidity test chamber is heated or not. After the controller receives the heating and heating command, it will output voltage to the relay, and the solid-state relay will apply a DC current of about a few volts; its AC end is equivalent to a wire connection; the contactor is also pulled in at the same time, and there is a voltage at both ends of the heater to make it warming up. The circulating fan drives heat into the chamber to warm up the constant temperature and humidity test chamber. That temperature will soon reach your set point; the controller adjusts by turning the solid state relay on and off. Adjust the heat output by watching the heat output on the screen in the test chamber; this is the temperature controlled above 89 degrees. How to control the temperature to stabilize below 89 degrees? The constant temperature and humidity test chamber is heated by a solid-state relay on one side; in addition, the dynamic balance is achieved by cooling the compressor refrigeration cycle; the constant temperature state is maintained.

Third, the humidification and dehumidification ability, the dehumidification system is also completed by the refrigeration system, and the evaporator is placed in the test chamber; it will be a little cold, and the high humidity in the test chamber will see cold objects condense into liquid; The high humidity of the body will be less, so as to achieve the purpose of reducing the humidity.