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Precautions for operation of cold and hot shock test chamber!

The cold and hot shock test chamber is divided into two box type and three box type according to the test requirements and test standards. The difference lies in the different test methods and internal structures. The three box type is divided into cold storage chamber, heat storage chamber and laboratory. The products are placed in the laboratory during testing. The two box type is divided into a high-temperature chamber and a low-temperature chamber. The high-temperature and low-temperature switching is realized by the movement of the basket driven by the motor. The product is placed in the basket and moves with the basket.

In order to ensure the correct use of the cold and hot shock test chamber, avoid the damage caused by improper use of instruments and products, and improve the effectiveness, authenticity and accuracy of product test data. The equipment operator shall pay attention to the spot check of daily instruments and the following operation specifications:

matters needing attention 

1. during the operation of the cold and hot shock test chamber, please do not open the chamber door unless necessary.
2. avoid turning off and then on the refrigeration unit within three minutes.
3. do not connect the power supply used for testing the sample to the power supply of the machine.
4. the lamp shall be turned off at other times except when necessary.
5. during the test, do not start the refrigerator when the temperature of the low-temperature box exceeds 55 ℃.
6. please check the circuit breaker and over temperature protector regularly.
7. before low temperature, the working room shall be wiped dry and dried at 60 ℃ for 1 hour.
8. it is forbidden to test explosive, flammable and highly corrosive substances.
9. the basket guide rail and rack shall be lubricated regularly.
10. on any section perpendicular to the prevailing wind direction, the sum of the cross-sectional areas of the test load shall not be greater than one third of the working section.
11. the tested sample shall be fixed in the middle of the sample rack as far as possible, and shall not be placed at one side at will, which will cause the basket to tilt.

 

Cold and hot shock test chamber service field 

      The cold and hot shock test chamber is applicable to the high and low temperature shock test of the complete machine and parts of aviation, aerospace, military, naval, electrical, electronic and other products, as well as the storage and test under high or low temperature environment. It is available for users to conduct corresponding climate environment accelerated tests on the whole machine (or parts), electrical appliances, instruments, materials, coatings, coatings, etc., so as to evaluate the test object or test behavior of the test object.