Precautions for the operation of the thermal shock test chamber

Thermal shock test chamber according to the test requirements and test standards are divided into two-box and three-box type, the difference lies in the test mode and internal structure. The three-box type is divided into cold storage room, heat storage room and test room, the product is placed in the test room. The two-box type is divided into high greenhouse and low greenhouse, which is driven by the motor to realize the movement of the basket to switch between high and low temperatures, and the product is placed in the basket, which is moved together with the basket. 

In order to ensure the proper use of the thermal shock test chamber, to avoid damage caused by improper use of instruments and products, and to improve the validity, authenticity and accuracy of product test data. Equipment operators should pay attention to the daily inspection of the instrument, and at the same time pay attention to the following operating specifications: 

Precautions 

1. Thermal shock test chamber in the operation, unless necessary, do not open the door. 

2. Avoid turning off and on the refrigeration unit within three minutes. 

3. Do not connect the power supply for testing samples to the power supply of the machine. 

4. Turn off the lighting except when necessary. 

5. During the test, if the temperature of the cryostat exceeds 55℃ or more, do not turn on the freezer. 

6. Circuit breaker and over-temperature protector should be checked regularly. 

7. Before doing low temperature, the studio should be dried, 60 ℃ drying 1 hour. 

8. Prohibit the test of explosive, flammable and highly corrosive substances. 

9. The basket guide and rack should be lubricated regularly. 

10. In any cross-section perpendicular to the prevailing wind direction, the sum of the test load cross-section area should not be greater than one-third of the working cross-section. 

11. The sample to be tested should be fixed in the center of the sample holder as far as possible, and should not be put to one side at will, resulting in tilting of the basket. 

Thermal shock test chamber service areas

Thermal shock test chamber for aviation, aerospace, military, naval, electrical, electronic and other products and parts of the high and low temperature impact test and storage and testing in high or low temperature environment. For users of the whole machine (or components), electrical appliances, instruments, materials, coatings, plating, etc. for the corresponding climate environment accelerated test, in order to test the test product or test product test behavior to make an evaluation.