Troubleshooting methods for impact testing machines

The impact tester will encounter various problems during use, and the following methods can be adopted:
1. In high temperature test, if the temperature change does not reach the test temperature value, you can check the electrical system one by oneTroubleshooting. If the temperature rises very slowly, check the air circulation system and see if the air circulation adjustment baffle is used.Turn on normally, otherwise, check whether the motor of the wind circulation is running normally. If the temperature is overshooting, it is necessarySet the settings parameters of the PID. If the temperature rises directly and is overtemperature protection, then if the controller fails, it must be replacedControl the instrument.
2. If the low temperature does not meet the test indicators, then you have to observe the change in temperature. Is the temperature drop very slowly?After the temperature reaches a certain value, the temperature tends to rebound. For the former, check whether it will work before performing the low temperature test.Dry the room, keep the studio dry, then put the test sample into the studio and then do the test, the test in the studioCheck whether the sample is placed too much so that the wind in the studio cannot be fully circulated. After eliminating the above reasons, you mustConsider whether it is a fault in the refrigeration system, so professionals from the manufacturer must be asked to carry out maintenance. The latter's presentationIt is caused by the poor use environment of the equipment, the ambient temperature of the equipment, the position of the equipment (behind the box and the wallDistance) must meet the requirements (there are specified in the equipment operation instructions).
3. In the humid and heat test, the actual humidity will reach 100% or the actual humidity will be very different from the target humidity.Large, the value is much lower. The former phenomenon: it may be caused by the dry gauze on the wet ball sensor, so it needs to be checked.Check whether the water level in the wet bulb sensor is lacking in water. The water level in the trough is automatically controlled by a water level controller.Whether the water level controller water supply system is normal, and whether the water level controller is working normally. Another possibility is wetDue to the long use of the ball gauze or the purity of the water supply, the gauze will harden and make it impossible to absorb.The moisture is dry, and the above phenomena can be eliminated by replacing or cleaning the gauze. The latter phenomenon is mainly humidification systemNot working, check the water supply system of the humidification system, whether there is a certain amount of water in the water supply system, and control the humidification boilerIs the water level control normal and the water level in the humidification boiler normal? If all of the above is normal, thenTo check the electrical control system, professional maintenance personnel must be asked to perform maintenance.
,Impact testing machinePay attention to daily maintenance.