- Issue Time
When testing, the constant temperature and humidity test chamber may need to be defrosted.
What is the defrost? How to defrost the constant temperature and humidity test chamber? Why is it necessary to defrost during testing?
The defrosting of the constant temperature and humidity test machine is mainly that the water in the air is cooled and changed into crystals, which become a kind of small ice crystals. The constant temperature and humidity test machine defrosts the frost mainly on the energy storage components in the pre-cooling zone.
The constant temperature and humidity test chamber mainly exchanges heat through the mutual conversion of the airflow in the three complementary boxes. Moreover, the air in the three boxes is isolated from the air outside the box.
Since these three boxes are closed, the moisture in the box is quantitative. From a theoretical point of view, it is impossible to add some moisture out of thin air to form frost.
Then where does this extra moisture form?
It is not difficult to know where the moisture comes from. During the test, the user opens the cabinet door of the constant temperature and humidity testing machine, and the moisture in the air enters the cabinet. Therefore, it is not allowed to open the door of the chamber when the constant temperature and humidity testing machine is testing. It will not only increase the cream, but also the authenticity of the test data, and may also cause unnecessary failures.
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