High-performance electronic products must be tested in high-temperature and harsh environments to improve product stability and reliability. High-temperature aging rooms are ideal experimental instruments. Mainly used in power electronics, computers, communications, biology and other fields. There are mainly the following types of faults when using high temperature aging rooms: 1. 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. 2, the low temperature can not reach the test index, then you have to observe the temperature change, the temperature is very slow, or the temperature has a tendency to rise after the temperature reaches a certain value, the former should check, whether it will be before the low temperature test The studio is dried, the studio is kept dry, and then the test sample is placed in the working room for testing. The test sample in the working chamber is placed too much, so that the wind in the working chamber cannot be fully circulated. 3. In the damp heat test, the actual humidity will reach 100% or the actual humidity will be very different from the target humidity. The value is much lower. The former phenomenon may be caused by the drying of the gauze on the wet bulb sensor. Whether the water in the water tank of the ball sensor is lacking, the water level in the water tank is automatically controlled by a water level controller. Check whether the water supply system of the water level controller is normal and the water level controller works normally. Another possibility is that the wet ball gauze will be hardened due to the long use time or the purity of the water supply, so that the gauze can not absorb moisture and be dry. The above phenomenon can be eliminated by replacing or cleaning the gauze. The latter phenomenon is mainly because the humidification system does not work. Check the water supply system of the humidification system, whether there is a certain amount of water in the water supply system, whether the water level control of the humidification boiler water level is normal, and whether the water level in the humidification boiler is normal. 4. When the equipment suddenly fails during the test operation, the corresponding fault display prompt appears on the control instrument and there is an audible alarm prompt. The operator can quickly check which type of fault belongs to the fault diagnosis chapter in the operation of the equipment, and then ask the professional to quickly eliminate the fault to ensure the normal operation of the test.
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