Comprehensively explain the failure maintenance method of high and low temperature test cases When users are using high and low temperature test cases, the following failure phenomena may occur. As an amateur, how do you deal with the failure of high and low temperature test cases? Below by the test box expert Hongda Tian moment for your comprehensive analysis.
For troubleshooting of high and low temperature test chambers, please refer to the following:
1, when the high-low temperature test, the actual humidity will reach 100% or the actual humidity and the set humidity is very different, the value is much lower, the former phenomenon: may be caused by dry gauze wet bulb sensor, it Check whether the water tank in the wet ball sensor is short of water. 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 whether the water level controller is working properly. Another possibility is that the wet ball gauze may cause the gauze to become hard due to the long use time or the purity of the water supply, so that the gauze cannot absorb moisture and dry, and the above phenomenon can be eliminated only by replacing or cleaning the gauze. The latter phenomenon is mainly due to the fact that the humidification system of the test chamber is not working, check the water supply system of the humidification system, whether there is a certain amount of water in the water supply system, control whether the water level of the humidifying boiler water level is normal, and whether the water level in the humidifying boiler is normal. If all of the above is normal, then check the electrical control system, which requires professional maintenance personnel to perform maintenance.
2. When the high temperature test is performed, if the temperature does not reach the test temperature, the electrical system can be checked and the faults can be eliminated one by one. If the temperature of the test chamber rises very slowly, it is necessary to look at the air circulation system and see if the adjustment baffle of the air circulation is normally open. Conversely, check whether the motor operation of the air circulation is normal. If the temperature overshoots badly, then you need to set the PID setting parameters. If the temperature rises directly, over-temperature protection, then the controller fails and the control instrument must be replaced.
3. When the high-low temperature test box suddenly fails during the test operation, the control instrument displays a corresponding fault display prompt and a voice alarm. The operator can quickly check which type of fault belongs to in the troubleshooting chapter of the operation of the equipment, and then the professional can quickly eliminate the fault to ensure the normal operation of the test. Other environmental test equipment will have other phenomena in use, it must be specific phenomena, specific analysis and exclusion.
4, when the test box low temperature can not reach the test set the index, it would have to observe the temperature changes, the temperature drop is very slow, or the temperature rises after a certain temperature, the former must check, do low temperature Whether the studio is to be dried before the test, so that the studio is kept dry, and then the test sample is put into the work chamber and then tested. Whether the test sample in the work chamber is placed too much or not, the wind in the work chamber cannot be sufficiently circulated, eliminating the above After the reason, it is necessary to consider whether it is a fault in the refrigeration system. In this case, it is necessary to ask the factory's professionals to perform the repair. The latter phenomenon is caused by the poor use environment of the test chamber equipment. The ambient temperature of the equipment and the location of the equipment (the distance between the cabinet and the wall) must meet the requirements (in the operating instructions of the equipment).
The above is about the troubleshooting of high and low temperature test cases. The test box expert, Beijing Hongda Tianji Test Equipment Co., Ltd. (http://) hopes to fully help you, if your equipment does not have the above symptoms, We will analyze the causes and solutions of the high and low temperature test chamber for you.
silicone free antifoams,silicone powder free antifoams,non silicone defoamer,non silicone antifoam
NINGBO LUCKY CHEMICAL INDUSTRY CO. LTD , https://www.luckychemical.com