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The high and low temperature test box may not be refrigerated during us.
Liuqin Technology explains the reasons why the high and low temperature test box is not refrigerated:Since the temperature cannot be maintained, observe whether the refrigeration compressor is in the operation of the test bo.
It can be started, and the compressor can be started during the operation of the environmental test equipment, indicating that the electrical circuit from the main power supply to each compressor is normal, and there is no problem with the electrical syste.
Touch the exhaust and suction pipelines of the compressor of the main engine unit by hand, and find that the temperature of the exhaust pipeline is not high, and the temperature of the suction pipeline is not low (not frosted), which also shows that the main engine group Lack of refrigeran.
There is no problem with the electrical system, continue to check the refrigeration syste.
First, check that the exhaust and suction pressures of the low-temperature stage compressors of the two sets of refrigeration units in the high and low temperature test chamber are lower than normal values, and the suction pressure is in an evacuated state, indicating that the amount of refrigerant in the main refrigeration unit is insufficien.
If the cause of the failure is not determined, further confirm the cause of the failure in combination with the control process of the test chambe.
Liuqin Technology explains the reasons why the high and low temperature test box is not refrigerated:Since the temperature cannot be maintained, observe whether the refrigeration compressor is in the operation of the test bo.
It can be started, and the compressor can be started during the operation of the environmental test equipment, indicating that the electrical circuit from the main power supply to each compressor is normal, and there is no problem with the electrical syste.
Touch the exhaust and suction pipelines of the compressor of the main engine unit by hand, and find that the temperature of the exhaust pipeline is not high, and the temperature of the suction pipeline is not low (not frosted), which also shows that the main engine group Lack of refrigeran.
There is no problem with the electrical system, continue to check the refrigeration syste.
First, check that the exhaust and suction pressures of the low-temperature stage compressors of the two sets of refrigeration units in the high and low temperature test chamber are lower than normal values, and the suction pressure is in an evacuated state, indicating that the amount of refrigerant in the main refrigeration unit is insufficien.
If the cause of the failure is not determined, further confirm the cause of the failure in combination with the control process of the test chambe.
