The four functions of the constant temperature and humidity test chamber: The constant temperature and humidity test chamber we have been using is a simple and cost-effective product. Because of its advantages of affordability and mutual benefit, this product is becoming more and more popular. The basic function of the test chamber is to conduct tests in a simulated environment. In order to better conduct the test, we should pay more attention to the safety of the equipment when purchasing it, and whether it is suitable for your use.
The main function of the constant temperature and humidity test chamber is to control temperature and humidity. There are different series for various requirements and fields of use.
The constant temperature and humidity test chamber can achieve ultra-high temperature accuracy, even if the chamber is full and used for a long time.
Four functions of the constant temperature and humidity test chamber: Since the constant temperature and humidity test chamber is so powerful, what is its temperature and humidity
control principle? The editor will explain it to you.
1. Heating capacity:
1. The heating device is the key link to control whether the small constant temperature and humidity test chamber is heated
2. When the controller receives the heating command, it will output voltage to the relay. About 3-12 volts of DC is added to the solid relay; its AC end is equivalent to the wire connection;
the contactor also absorbs the platform at the same time, and there is voltage at both ends of the heater to make it heat up, and the heat is brought into the box through the circulating
fan to make the constant temperature and humidity test machine heat up
3. The temperature is about to reach your set value. The controller adjusts the on-off of the solid-state relay
4. We adjust the heat output by looking at the heating output on the screen in the constant temperature and humidity test chamber; 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 to control the heat output through the solid-state relay on one side;
and to achieve dynamic balance through the compressor refrigeration cycle cooling; the temperature is constant.
2. Cooling capacity can be said to be one of the core of the constant temperature and humidity test chamber. The compressor is the core component of the refrigeration system.
It converts the inhaled low-temperature gas into high-temperature gas, releases heat by condensing the gas into liquid, and then uses a fan to take away the heat, turning it into
a low-pressure liquid, and then passes through the evaporator to become a low-temperature and low-pressure gas and finally returns to the compressor; the refrigerant in the
evaporator absorbs heat to complete the gasification process, achieves the purpose of refrigeration, and completes the cooling of the test chamber.
3. Humidification capacity: Shallow trough humidification method, equipped with a super-large water tank for water storage, not only humidification is fast, but also long-term stable testing.
4. Dehumidification capacity
The dehumidification method of the constant temperature and humidity test chamber is cooling and dehumidification. The evaporator is at the back of the studio and is separated from the
studio by a sealing plate. The high-humidity gas condenses into liquid when it encounters a cold object; this is repeated and the high-humidity gas in the box will be reduced, achieving the
purpose of dehumidification.
In summary, the constant temperature and humidity test chamber has these four capabilities, which basically meet the material performance testing in any field and provide constant
temperature and humidity conditions.
Constant temperature and humidity test chamber is an essential test instrument in the fields of aviation, aerospace, automobile, electronics, electrical engineering, scientific research,
universities, etc. It is used to detect and develop parameters and performance of electrical, electronic and other products and materials after high temperature, low temperature, humidity
or constant temperature environment changes.
