The temperature impact tester tests the material's repeated resistance to high and low temperatures, chemical change or physical damage to the product due to thermal expansion and contraction, and confirms the quality of the product, from precision ICs to heavy mechanical components. When the temperature shock test box fails, how to deal with it calmly, Kunshan Haida technicians give you how to solve the problem in the high temperature test, when the temperature does not reach the test temperature value, and help you solve related problems.
In the high temperature test, if the temperature does not reach the test temperature value, the electrical system can be checked and the faults can be eliminated one by one. If the temperature rises very slowly, it is necessary to look at the air circulation system and see if the adjustment baffle of the air circulation is normal.
1, the low temperature can not reach the test indicators Observe the temperature change, is the temperature drop is very slow, or the temperature has risen after a certain value of the trend, the former must check, do low temperature test before the studio drying, After the studio is kept dry, the test sample is put into the working chamber and tested again. The test sample in the working chamber is placed too much, so that the wind in the working chamber cannot be fully circulated. If it is not a similar situation, you can ask professional manufacturers to repair.
2. When the temperature impact test box is used for the damp heat test, the actual humidity will reach 10 or the actual humidity will differ greatly from the 0% target humidity, and the value will be much lower. It may be caused by the drying of the gauze on the wet-bulb sensor. Check the wet-bulb sensor for water shortage. 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 works normally. You can change a wet ball gauze or try again with purified water. Or ask a professional electrician to overhaul the circuit control system. In addition to the correct operation of the test personnel according to operating procedures, it should also understand its structure. The temperature impact test box is composed of a box body, an air circulation system, a refrigeration system, a heating system and a humidity control system.
3. The cause of the temperature shock test box failure may also be due to poor ambient temperature. The manufacturer recommends that the optimum temperature be 5-28 degrees (24 hours average temperature is around 24 degrees), the humidity can be about 95%, any precision Instruments need to have a good place to plant to ensure that the instrument performs its best. Ensure the product's service life. This maintenance tips should be known to any laboratory manager or machine operator.
4, the temperature impact test box ring water pressure is insufficient: 3 kinds of inspection methods:
1 If the circulating water pressure is insufficient, is the fault indicator red? The indicator lights up and does not flash. This condition occurs for a number of reasons. Check the following items one by one: a. Check that the cooling tower power is on? b. Check the cooling tower Whether the water cooling tower water pump motor is damaged or not? d If the power supply is sent, no action, it represents the motor damage cooling tower is maintained once a year?
2 Is the red light indicating the flashing state of the part where the circulating water pressure is insufficient?
Solution:
3 There are many reasons for this condition. Please eliminate them one by one according to the following items: a. Please turn on the power of the cooling tower! b. Please check whether there is any problem with the cooling water tower make-up system or if the water inlet part is open! c. Please inform the hydropower company to replace the motor. d. If not, please perform maintenance. It is recommended that you go outside to clean and wash!
On behalf of this period of time, the following a and b situations have occurred. However, the fault signal has been automatically excluded at this time.
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