What are the common faults in the rapid temperature change test chamber?

This series of rapid temperature change test chambers can provide a simulation environment for users to inspect and test electronic and electrical components, spare parts or related industries, providing the necessary conditions for the accuracy and consistency (repeatable) of test data. The product has simple operation performance and reliable equipment performance, advanced and convenient operation measuring device, temperature controller, advanced Chinese liquid crystal display screen touch screen, can carry out various complicated program settings, and the program setting adopts dialogue mode. The operation is simple and quick.

First, 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.

Second, 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 there is water shortage in the sink 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 gauze is hardened due to the long use time or the purity of the water supply, so that the gauze becomes hard and the gauze can not absorb moisture and is 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. If everything above is normal, then check the electrical control system, which should be repaired by professional maintenance personnel.

Third, when the equipment suddenly fails during the test operation, a corresponding fault display prompt appears on the control meter and an audible alarm prompt is displayed. The operator can quickly check which type of fault is involved in the troubleshooting chapter of 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.

Fourth, the low temperature can not reach the test index, then you must 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 must check, before the low temperature test Dry the working chamber, keep the working chamber dry, and then put the test sample into the working room and then test it. If the test sample in the working room is too much, the wind in the working room cannot be fully circulated. After eliminating the above reasons, It is necessary to consider whether it is a fault in the refrigeration system, so it is necessary to ask the professional of the factory for maintenance. The latter phenomenon is caused by the poor use of the equipment. The ambient temperature at which the equipment is placed and the location where it is placed (the distance between the back of the cabinet and the wall) must meet the requirements (as specified in the operating instructions for the equipment).