How much do you know about environmental equipment maintenance skills?

Anyone who knows the high-low temperature heat and humidity alternating test chamber knows that the high-low temperature heat and humidity alternating test chamber is a test chamber integrating a high-low temperature test chamber and a wet heat function. Its structure is different from other environmental test chambers, so maintenance is necessary. It will also be complicated. After years of developing a maintenance method for a high-low temperature heat and humidity alternating test machine, Ai Siwei will discuss several major aspects of the troubleshooting and maintenance of the high-low temperature heat and humidity alternating current:

First, the high and low temperature alternating damp heat test box In the high temperature test, if the temperature change cannot reach the test temperature value, the electrical system can be inspected to eliminate the fault one by one. If the temperature rises very slowly, it is necessary to look at the wind turbine system and see if the adjusting baffle of the wind turbine is turned on normally. On the contrary, check whether the motor operation of the wind turbine is normal. If overheating is severe, 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.

Second, the high-low temperature heat and humidity alternating test chamber low temperature can not reach the test index, then you have to observe the temperature changes, the temperature drop is very slow, still is the temperature to a certain value after the temperature has picked up the trend, the former must check Do you want to dry the studio before the low-temperature test, make the studio dry, and then put the test sample into the work chamber and do the test. The test sample in the work chamber is placed too much, so that the wind in the work chamber cannot be fully cycled. After eliminating the above reasons, it is necessary to consider whether it is a fault in the refrigeration system. The rotor pump must be checked by the factory's professional staff. The latter phenomenon is caused by the poor use environment of the equipment. The temperature of the equipment and the location of the equipment must meet the requirements.

Third, the high and low temperature heat and humidity alternating test chamber in the heat test, the actual humidity will reach 100% or the actual humidity and target humidity vary greatly, the value is much lower, the former phenomenon: may be wet bulb sensor When the gauze dries, it is necessary to 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 level controller water supply system 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 the moisture and dry, and the above phenomenon can be eliminated simply by replacing or cleaning the gauze. The latter phenomenon is mainly because the humidification system is not working. Check the water supply system of the humidification system. Check if 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. This should be checked by a professional maintenance staff.

Fourth, when the equipment suddenly appears fault during the test operation, the control instrument displays a corresponding fault display prompt and a voice alarm. The operating personnel can quickly check which type of fault is in the troubleshooting chapter of the control equipment and can ask the professional staff to quickly eliminate the fault to ensure the normal operation of the test. Other environmental test equipment will have other phenomena in use, it is necessary to explain the phenomenon in detail, analyze and solve in detail.

Ai Sihao popular sales products: two-box cold and heat shock, three-box cold and heat shock, walk-in constant temperature and humidity test chamber, impact test bench, electric vibration test bench and other reliability test equipment. Twenty-five years old brands provide one-on-one quality professional services, so that you can buy them with confidence and use them with confidence.