The principle of constant temperature and humidity test chamber - Database & Sql Blog Articles

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Constant temperature and humidity test chamber

It consists of two parts: temperature adjustment (heating, cooling) and humidification. Through the rotating fan installed at the top of the box, the air is discharged into the box to realize the gas circulation, balance the temperature and humidity in the box, and the data collected by the temperature and humidity sensors built in the box is transmitted to the temperature and humidity controller (micro The information processor performs editing processing, and the temperature adjustment and humidity adjustment command is issued, and is completed by the air heating unit, the condensation tube, and the heating and evaporation unit in the water tank.

The constant temperature and humidity test chamber temperature adjustment is through the built-in temperature sensor, collecting data, adjusting by the humidity controller (micro information processor), connecting the water heater heating element, and increasing the humidity or adjusting the humidity in the water tank by evaporating the water in the water tank. The refrigeration solenoid valve is used to achieve dehumidification to achieve the desired humidity. The constant temperature and humidity chamber is provided 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 follow the humidification tank water level The power supply is reduced and stopped; the refrigeration system also stops working as the temperature of the cabinet rises (over 40 ° C) or the humidity increases.

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