The constant temperature and humidity test box is placed in the specified temperature and humidity to see the product's high temperature resistance, low temperature resistance, and humidity resistance. Therefore, the constant temperature and humidity test box has the functions of heating, cooling, humidifying and dehumidifying.
The heating device is the key to controlling the constant temperature and humidity test box; it is the output voltage to the relay when the controller receives the heating 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 sucked at the same time, the heater has a voltage at both ends to make it heat, and the heat is brought to the box by the circulating fan, so that the constant temperature and humidity test box is heated, and the temperature reaches your set value quickly; the controller By adding and adjusting in the solid state relay; we can adjust the heat output by watching the heating output on the screen in the constant temperature and humidity test box; this is the temperature control above 89 degrees, how to control the temperature stability below 89 degrees? Constant temperature and humidity test The box is powered by the solid state relay on one side; the other is cooled by the compressor refrigeration cycle to achieve dynamic equilibrium; the temperature is constant.
Cooling is an important part of the constant temperature and humidity test chamber. It is an important parameter for determining the performance of a constant temperature and humidity test chamber. It consists of four components: compressor, condenser, throttling device and evaporator. 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 and humidity test box is under the cause of hot air, and then throttling to low pressure. The liquid, secondly, passes through the evaporator to become a low-temperature low-pressure gas and finally returns to the compressor; the refrigerant absorbs heat in the evaporator to complete the gasification process and absorbs heat, thereby achieving the purpose of cooling, and completing the cooling process of the constant temperature and humidity test chamber.
The humidification system is roughly the same as the heating system; it is a process in which the heater heats the water into a steam; the purpose of humidifying the constant temperature and humidity test box is completed.
The dehumidification system is also completed by the refrigeration system. The evaporator is placed in the constant temperature and humidity test chamber; the cold, constant humidity and humidity test chambers contain high-humidity gas and the cold objects are condensed into liquid; thus the high-humidity gas of the tank is repeated. Less, achieve the purpose of reducing humidity.
?
Seagrass Basket,Seagrass Storage Baskets,Storage Baskets With Lids,Large Seagrass Basket
Guangxi Pubei Jinliang Arts and Crafts Co.,ltd , https://www.arts-manufacturers.com