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Scope of application:
This standard specifies the conditions of use, technical requirements, test methods, inspection rules and signs, test rules, signs, signs, signs, signs, signs, and signs, testing rules and signs, testing rules and signs, testing methods, testing rules, and signs. Packaging, transportation, storage and other requirements. It is suitable for test boxes for low -temperature tests for electronics and electronics and other products, parts and materials. 1. Environmental temperature requirements
1. Temperature: 15 ~ 35 ℃;
2. Relative humidity: not greater than 85%;3. Atmospheric pressure: 86 ~ 106kPa;
4. There is no vibration around;
5. Direct irradiation or other cold and heat sources directly radiated without sunlight;
6. There is no airflow around At the time, the airflow should not be blown directly to the box;
7. There is no electromagnetic field effect around;
8. There is no high concentration around the surroundings. Dust and corrosive substances.2. Test procedures
1. At
fast temperature change test box The temperature can Within the range, the low -nominal temperature is selected as the test temperature.
2.在工作空间几何中心点的温度第一次达到测试温度并稳定2h后，每隔2 min测试所有测试点的温度值1次，共测5 Second-rate.
3. The calculation and evaluation of the test result; 4. Correct the measured temperature value according to the correction value of the test instrument;
5. Calculate the arithmetic average of each test point temperature respectively;
6. Essence
Scope of application:
1. Fast temperature change test box
It is suitable for various types of electronic and electronic products and other products, components and materials for high -low temperature constant and gradient, mutation, damp heat test and other environmental simulation reliabilitytest.2. In addition, the use may cause injuries and machine equipment damage!
Test sample limit:
1. Test and storage of flammable, explosive, volatile substance samples 2. Tests or storage of the test of corrosive substance samples and storage of biological samples
3. Test and storage of electromagnetic transmission source samples
Temperature fast change test box
Refrigeration system and compressor:
For the sake To ensure the cooling rate and low temperature of the test box, this test box adopts a dual -decorative cooling refrigeration system composed of a set of Taikang fully closed compressors. The decorative refrigeration system contains a high -temperature refrigeration cycle and a low -temperature refrigeration cycle. Its connecting container is evaporative condenser. The evaporation condenser is also the effect of energy transfer. the goal of. The design and application of the energy regulation technology of the refrigeration system can ensure that the energy consumption and refrigeration capacity of the refrigeration system can be effectively adjusted without the normal operation of the refrigeration unit, so that the operation cost of the refrigeration system can be The failure rate drops to a more economical state.
