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1.In high-temperature tests, if the temperature can't reach set value, the electrical system can be inspected and the faults can be eliminated one by one. If temperature increases very slowly, it is necessary to check the air circulation system to see if the regulating baffle of the wind cycle is turned on normally. Otherwise, check whether the motor of the wind cycle is running normally. If temperature is too high, you need to set PID parameters.
2. When the climatic chamber suddenly fails during operation, the fault will display promptly in controller, and there is an audible alarm promptly. The operator can quickly check which type of fault belongs to in fault diagnosis chapter, and then ask the professional to quickly eliminate the fault to ensure the normal operation of the test. Climatic chamber should also be regularly maintained, 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 indispensable.
3. If the climatic chamber can not reach the set value, then you have to observe the temperature change whether temperature change is very slow, or the temperature has a tendency to rise after the temperature reaches a certain value. If it's the former problem, you need to check the following points: 1. If the chamber is dry before perform test? The chamber should be dry before test. 2. If too many samples are placed inside the chamber at one time? If so, the wind in the working chamber cannot be fully circulated. 3. Besides above two points, it is necessary to consider whether the refrigeration system is normal, it's better to consult a test chamber 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 chamber and the wall) must meet the requirements (as specified in the operating instructions for the equipment).