Troubleshooting: high and low temperature test chambers can not meet the high and low temperature requirements

Even the best products have failures. How to quickly judge faults and keep the test machine in a good working condition has always been the subject of environmental test equipment manufacturers. In order to quickly determine problems and solutions by themselves, Based on years of experience in after-sales service, we have sorted out some solutions for high and low temperature test chambers that do not meet the high temperature and low temperature requirements.
In the high temperature test, if the temperature change does not reach the test temperature value, the electrical system can be inspected and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to check the air circulation system to see if the regulating baffle of the wind cycle is normal. On the contrary, check whether the motor of the wind cycle is running normally. If the temperature is too high, you need to set the PID setting parameters. If the temperature rises directly and the temperature is over-protected, then the controller fails and the control instrument must be replaced.
If the low temperature does not reach the test index, then you must observe the temperature change, the temperature drop is very slow, or the temperature has a tendency to rise after the temperature reaches a certain value. The former should check whether the studio will be used before the low temperature test. Drying, keeping the studio dry, then putting the test sample into the working room and then testing it. If 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 fault in the refrigeration system, the rotor pump should be inspected by the professional of the manufacturer. The latter phenomenon is caused by the poor use of the equipment. The ambient temperature at which the equipment is placed and the location where it is placed (the distance between the back of the cabinet and the wall) must meet the requirements (as specified in the operating instructions for the equipment).
Common faults and solutions for high and low temperature test chambers: maintenance should be carried out regularly, the condenser of the refrigeration system should be cleaned regularly, the moving parts should be lubricated according to the instructions, the electrical control system should be regularly maintained and checked, etc. These tasks are essential. of.

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