What are the reasons for the slow cooling and cooling of high and low temperature testing machines?
The high and low temperature test chamber needs to gradually recover the temperature after the test, but some users find that the equipment has a slow cooling and heat dissipation. It is not easy to find this situation when the temperature is low in winter. What causes the low and low temperature test chamber to cool down slowly? The low temperature and low temperature of the high and low temperature test chamber will affect the normal use of the equipment. It is necessary to find out the reasons for processing in time. The following Shanghai Bao test introduces two major reasons from the outside and inside the equipment:
1. External factors:
The external temperature environment will have a large impact on the high and low temperature alternating test chamber, so the high and low temperature test chambers are not suitable for placement in places with excessive temperature. It is usually recommended to be placed in a cool place. The indoor air conditioning is equipped with air conditioning. In order to cool down, otherwise the indoor temperature is too high, which may cause the heat pipe of the device to dissipate slowly. If the heat value is too large, the temperature in the box will decrease slowly, and it is difficult to achieve the set temperature in a short period of time.
2. Internal factors:
The low temperature and low temperature of the high and low temperature alternating test machine are mostly caused by internal faults. It is a common situation that the centrifugal fan of the equipment does not work or the abnormality of the refrigeration unit is abnormal. First check whether the centrifugal fan is operating and can hear the sound of the centrifugal fan rotating. Also check the cryogenic refrigeration compressor of the refrigeration unit. If the standard values ​​of the exhaust pipe and the breathing working pressure are both low, indicating that the refrigerant capacity of the main refrigeration unit is insufficient, this situation needs to fill the refrigerant immediately.
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