Common faults and elimination methods of fast temperature change test chamber
The rapid temperature change test chamber in the high temperature test:
Fault 1: The temperature change does not reach the test temperature value, you can check the electrical system and eliminate the fault one by one.
Fault 2: If the temperature rises very slowly, it is necessary to check the wind circulation system to see whether the adjustment baffle of the wind circulation is opened normally, otherwise, check whether the motor of the wind circulation is operating normally.
Fault 3: If the temperature overshoot is severe, then the PID setting parameters need to be adjusted.
Fault 4: Temperature rises directly, over-temperature protection, then, if the controller fails, the control instrument must be replaced.
In the low temperature test of the fast temperature change test chamber:
Failure: Low temperature can not reach the test index,
Remedy: Observe the temperature change, whether the temperature drops slowly, or the temperature has a tendency to rise after the temperature reaches a certain value, the former should check whether the studio is dried before the low temperature test, and keep the studio dry Then put the test sample into the working room and then conduct the test. Whether the test sample in the working room is placed too much, the wind in the working room cannot be fully circulated. After eliminating the above reasons, it is necessary to consider whether it is a failure in the refrigeration system In this case, the professional personnel of the manufacturer should be asked to carry out maintenance. The latter phenomenon is caused by the poor use environment of the equipment. The ambient temperature of the equipment and the location (the distance between the back of the box and the wall) must meet the requirements (as specified in the equipment operation instructions).
When the temperature rapid change test box suddenly fails during the test operation, the corresponding fault display prompt appears on the control instrument. The operator can quickly check which type of fault belongs to the chapter of troubleshooting in the operation and use of the device, and then you can ask a professional to quickly troubleshoot to ensure that the test is carried out normally. There will be other phenomena in the use of other environmental test equipment, then specific phenomena, specific analysis and elimination are required.
The environmental test equipment should also be regularly maintained, the condenser of the refrigeration system should be cleaned regularly, the moving parts should be lubricated and lubricated according to the instructions, and the electrical control system should be regularly maintained and inspected. These tasks are indispensable.
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