With the rapid development of modern industrial technology, the application fields of electric and electronic products in constant temperature and humidity test chambers are becoming more and more extensive, and the environmental conditions experienced are becoming more and more complicated. Only by properly stipulating the environmental conditions of the product and correctly selecting the environmental protection measures of the product can the product be protected from damage during storage and transportation, and safe and reliable during use. Therefore, the artificial simulation of environmental testing of electricians and electronic products is an essential part of ensuring the high quality. The artificial simulation environmental test is a scientific summary of the actual environmental impact, which is characterized by typicalization, standardization, convenient use and easy comparison. The diversification of environmental conditions and the importance of environmental testing also place stricter requirements on environmental testing equipment. What problems will the constant temperature and humidity test chamber encounter during the test? The following is a brief explanation of the four problems commonly found in the constant temperature and humidity test chamber by Beijing Hongda Tianmo Test Equipment Co., Ltd. and the solution. 1. When the constant temperature and humidity test chamber 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. Other environmental testing equipment will have other phenomena in use, and it will be specific phenomena, specific analysis and elimination. 2. 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 of the constant temperature and humidity test chamber rises very slowly, it is necessary to check the air circulation system to see if the regulating baffle of the air circulation is normal. On the contrary, check whether the motor of the wind circulation is running normally. If the temperature is too high, you need to set the PID setting parameters. If the temperature rises directly, the controller fails and the control instrument must be replaced. Third, the constant temperature and humidity test chamber in the damp heat test, the actual humidity will reach 100% or the actual humidity and the target humidity are very different, the value is much lower, the former phenomenon: may be caused by the drying of the gauze on the wet ball sensor, It is necessary to check whether there is water shortage in the water tank of the wet bulb sensor. 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 caused by the humidification system of the constant temperature and humidity test chamber not working. 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. . If everything above is normal, then check the electrical control system, which should be repaired by professional maintenance personnel. Fourth, the constant temperature and humidity test chamber low temperature can not reach the test index, then you must observe the temperature change, it is clear that 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 is dried before the low temperature test, so that the studio is kept dry, then the test sample is put into the work room and then tested. Whether the test sample in the work room is placed too much, so that the working room is too The wind cannot be fully circulated. After eliminating the above reasons, it is necessary to consider whether it is a fault in the refrigeration system. Therefore, the professional personnel of the manufacturer should be inspected. The latter phenomenon is caused by the poor use environment of the constant temperature and humidity test chamber equipment. The ambient temperature where the equipment is placed and the position to be placed (the distance between the back of the cabinet and the wall) must meet the requirements (there are provisions in the operating instructions for the equipment). ). 3+2+1 leather recliner sofa includes one single sofa, one loveseat sofa, and one single sofa, you can choose any sofa you like. The cover material of the 3+2+1 leather recliner sofa is leather which is soft, breathable and with good toughness, and easy to clean and anti water, it is also eco-environmental. Leather Manual Recliner Sofa,3+2+1 Leather Recliner Sofa,Leather Reclinable Sofa,Leather Reclining Sofa Kaifeng Lanwei Smart Home Co., Ltd , https://www.manualrecliner.com