Explain the maintenance of the high and low temperature alternating heat and humidity test chamber and the maintenance method of the test box
Long-term loss will result in a complete constant temperature and humidity chamber where maintenance is needed, just as skin that has been damaged needs to be protected. Some faults that may occur in different time periods will be different. For temperature problems, they are all emphasized in a long period of time. Let's talk about them.
In the high temperature test, if the temperature change does not reach the test temperature value, you can check the electrical system first and troubleshoot it one by one. If the temperature rises very slowly, it is necessary to first check the system of the wind cycle, and then see if the regulating baffle of the wind cycle is turned on normally. Otherwise, it is necessary to check whether the motor of the wind cycle is operating normally. If the temperature is too high, then it is necessary to set the parameters of the PID. If the temperature rises directly, the over-temperature protection will cause the controller to malfunction, and the constant temperature and humidity chamber will need to replace the control instrument.
If the low temperature does not reach the test index, then you need to observe the temperature change. Is the temperature drop very slow, or the temperature has a rising trend after the temperature reaches a certain value? The former is to check whether it will be used before the low temperature test. The studio is dried, so that the studio is kept dry, and then the test sample is put into the working room and then tested. Whether the test sample in the working room is placed too much, the wind in the working chamber cannot be fully circulated, and the above is excluded. After the reason, it is necessary to consider whether it is the cause of the failure in the refrigeration system.
This requires the professional staff of the manufacturer to carry out maintenance. The latter phenomenon is caused by the poor use environment of the equipment. The ambient temperature where the equipment is placed and the position where it is placed (the distance between the back of the cabinet and the wall) are to meet the requirements (there are regulations in the operating instructions for the equipment). ). Equipment loss and failure are all areas to pay attention to, maintenance measures and timely handling of problems are in the process of extending life for our good partners constant temperature and humidity chambers.
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