Constant temperature and humidity test chamber has three capabilities
The constant temperature and humidity test chamber is an essential test equipment for aviation, automotive, home appliances, scientific research, etc., used to test and determine the temperature environment changes of electric, electronic and other products and materials for high temperature, low temperature, damp heat or constant test. Parameters and performance. The following explains the constant temperature and humidity test chamber with four major capabilities:
First, heating capacity
1. The heating device is the key to control whether the small constant temperature and humidity test chamber is heating up.
2. It is the controller that outputs the voltage to the relay when it receives the temperature rise command. About 3-12 VDC is added to the solid state relay; its AC terminal is equivalent to the wire connection; the contactor is also attracted at the same time. The voltage causes it to heat up, and the heat is brought to the tank by the circulating fan to warm the constant temperature and humidity tester.
3. The temperature reaches your set value quickly; the controller adjusts the on-off by adding the solid state relay
4. We adjust the heat output in the constant temperature and humidity test chamber to adjust the heat output; this is the temperature control above 89 degrees, how to control the temperature stability below 89 degrees? The constant temperature and humidity test chamber is on one side through the solid state relay How much heat is generated; the temperature is reached by the compressor refrigeration cycle to achieve dynamic equilibrium; the temperature is constant.
Second, cooling capacity
1. The important part of the constant temperature and humidity test chamber is an important parameter for judging the performance of a constant temperature and humidity machine. It consists of four components: compressor, condenser, throttling device and evaporator.
2. The compressor is the heart of the refrigeration system. It sucks low-temperature and low-pressure gas, turns into high-temperature and high-pressure gas, releases heat by condensing into liquid, and removes heat through the fan. Therefore, the temperature of the constant temperature and humidity machine is caused by hot air, and then by throttling The low pressure liquid passes through the evaporator to become a low temperature and low pressure gas and finally returns to the compressor;
The refrigerant absorbs heat in the evaporator to complete the gasification process and absorb heat, so as to achieve the purpose of refrigeration, and complete the cooling process of the constant temperature and humidity machine.
Third, humidification and humidity reduction capacity
The dehumidification system is also completed by the refrigeration system, and the evaporator is placed in the small constant temperature and humidity test chamber; relatively cold, the high humidity gas in the constant temperature and humidity test chamber will see the cold object condense into liquid; thus repeating the high humidity gas of the tank Rarely, to achieve the purpose of dehumidification.
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