The working principle of the walk-in constant temperature and humidity test box:

The walk-in constant temperature and humidity test box consists of two parts: temperature regulation (heating, cooling) and humidification. Through the rotating fan installed on the top of the box, the air is discharged into the box to realize gas circulation and balance the temperature and humidity in the box. The data collected by the built-in temperature and humidity sensor in the box is transmitted to the temperature and humidity controller (micro Information processor) to edit and process, and issue temperature and humidity control instructions, which are completed by the air heating unit, the condenser tube and the heating and evaporation unit in the water tank.

The humidity adjustment of the constant temperature and humidity test box is to collect data through the built-in humidity sensor in the body, adjust the humidity controller (micro information processor), connect the heating element of the water tank, and increase the humidity in the box by evaporating the water in the water tank. The refrigeration solenoid valve is used to achieve the dehumidification effect, and the humidity required for control has been achieved.

The temperature adjustment of the constant temperature and humidity test box is to collect data through the built-in temperature sensor in the box, adjust the temperature controller (micro information processor), and connect the air heating unit to increase the temperature or adjust the refrigeration solenoid valve to reduce the temperature of the box. , so as to reach the controlled temperature.

The constant temperature and humidity test box is equipped with multiple protection measures; the temperature system is equipped with an over-temperature protector under the condition that the maximum safe allowable temperature can be set, and the air heating element can be automatically powered off when the rotating fan stops; the humidification system can be connected with the humidification tank. The power supply is stopped when the water level drops; the refrigeration system also stops working when the temperature of the box rises (over 40°C) or the humidity increases.

The walk-in constant temperature and humidity test box is an upgrade on the basis of the constant temperature and humidity test box. It has a larger test space, and the staff can operate the test products in the laboratory. Products are widely used in materials, electrical, electronic products, aerospace products, information electronic instruments, various electronic components in high and low temperature or humid and hot environments, to test their performance indicators.

Several precautions for the use of walk-in constant temperature and humidity test box:

1. Avoid switching on and off the refrigeration unit within three minutes to affect the life of the compressor.

2. The correct installation of wet ball gauze can ensure the correct relative humidity.

3. When humidifying the water supply, pure water and distilled water must be used, and groundwater is prohibited to keep the water cool and smooth.

4. The quality of the test object is subject to the air volume loop, otherwise it will affect the performance of the machine.

5. Please read the instructions of the walk-in constant temperature and humidity test box carefully before operating.

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