How is the temperature and humidity inside the high and low temperature test box controlled?

The heating device is an important part of controlling whether the high and low temperature machine raises the temperature; this is when the control board obtains the temperature raising command to output the working voltage to the automobile relay, about 3-12 volts AC is added to the top of the intermediate relay; its communication terminal is equal to the connection of the transmission line.
The AC contactor is also pulled in separately.
There is a working voltage on both sides of the electric heater to make it hot.
According to the centrifugal fan of the circulation system, the heat is sent to the box to increase the temperature of the high and low temperature machine, and the temperature will be as fast as yours.
The preset value; the control board is adjusted according to the conduction of the added intermediate relay; people adjust the calorific value by looking at the heating load rate on the display screen of the high and low temperature machine; it is temperature controlled at about 89 degrees, and the temperature is stable below 89 degrees How to manipulate it? The high and low temperature machine is based on the heating load rate of the intermediate relay on the one hand; on the other hand, it is based on the cooling compressor refrigeration cycle system to achieve a stable balance; the temperature is stable
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Cooling is a key step in a high and low temperature machine, and it is the key main parameter to judge the characteristics of a high and low temperature machine.
It includes four major components: refrigeration compressor, cooler, throttling device, and air conditioner evaporator
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The refrigeration compressor is the cardiovascular system of the refrigeration unit.
It sucks in the ultra-low temperature bottom-pressure gas and turns it into an ultra-high-pressure gas.
It releases the calorific value into liquid according to the condenser, and takes the calorific value according to the centrifugal fan.
Therefore, there is warm air under the high and low temperature machine.
For this reason, the bottom pressure liquid is then changed according to the throttle valve, and then the air conditioner evaporator becomes ultra-low temperature bottom pressure gas and finally returns to the refrigeration compressor; the refrigerant digests and absorbs heat in the air conditioner evaporator for the whole process of vaporization.
Digestion and absorption Heat generation, achieve the purpose of cooling, and carry out the whole process of high and low temperature cooling
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The humidification system software is about the same as the heating system software; this is the whole process of the electric heater heating water into steam; the purpose of humidifying the high and low temperature machine
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The dehumidification system software is carried out by the refrigeration unit, and the air conditioner evaporator is placed in the high and low temperature machine; it is relatively cold, and the high and low temperature vapor in the high and low temperature machine meets the cold block condenser to form a liquid; in this way, the high temperature of the shell is continuously There is very little moisture feeling, and the purpose of dehumidification is achieved
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