Defrost function of high and low temperature alternating test chamber

The high and low temperature alternating test chamber will produce frost during the test product test, which will have certain impact on the test, but the high and low temperature alternating test chamber has the defrosting function during the test.

What is the function of defrosting in the high and low temperature alternating test chamber, and how is the equipment defrosting? Why is defrosting during the test operation?

The defrosting of the high and low temperature alternating test chamber is mainly performed by the compressor to refrigerate, and the moisture in the air is condensed into ice crystals, and the frost for defrosting in the high and low temperature alternating test chamber is mainly on the energy storage component in the pre-cooling zone.

The high and low temperature test chambers exchange heat mainly by mutual conversion of airflow in the tank. Moreover, the air inside the box is isolated and sealed from the air outside the box. Since the tank is closed, the moisture in the tank is quantitative. From a theoretical point of view, it is impossible to add some water to form a frost body. Then, where is this extra moisture formed? At the time, the user opens the box door of the high and low temperature test chamber, and the air of the box forms an air exchange with the outside, and the moisture in the air enters the box. Therefore, when using the high and low temperature test chambers for product testing, it is not allowed to open the door of the box, which will not only increase the frost, but also the uncertainty of the test data.

高低温交变试验箱的除霜功能

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