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Your location: Home > Related Articles > QINSUN interprets five reasons for the slow cooling of alternating high and low temperature test chamber-

QINSUN interprets five reasons for the slow cooling of alternating high and low temperature test chamber-

Author:QINSUN Released in:2023-05 Click:118

There are five reasons for the slow cooling of the alternating high and low temperature test chamber. Let\'s look at the five reasons:
1. There is too much dust in the condenser and the dust in the condenser needs to be cleaned.
2. The room temperature is too high If the room temperature is too high, it is necessary to find a way to reduce the room temperature, such as installing an air conditioner in the room or installing an air conditioner in the room. opening the bottom baffle and blowing with a fan, so as to achieve the cooling effect.
3. Heavy load
Check if the part under test is live test and measure the heat generation of the part during the live test. If the heat generation is less than 300W, it will not affect the test chamber, but if the heat generation is too large, the chamber will be damaged. The internal temperature drops slowly and cannot reach thee meter setting or does not cool.
4. Fan does not spin
Observe whether the fan can start during test chamber operation. If the fan can be started during the operation of the test chamber, it means the fan is normal.
5. Refrigeration System
To check the refrigeration system, first check that the exhaust and suction pressures of the low temperature (R23) compressors of both groups of refrigeration groups are lower than the normal value, and the suction pressure is released. indicating that the refrigerant amount of the main refrigeration unit is insufficient. Hand touch the exhaust and suction lines of the R23 compressor of the main unit and find that the temperature of the exhaust line is not high and the temperature of the suction line is not not low (no frost), which also showsMain unit Compressor R23 Insufficient refrigerant.

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