The rapid temperature change test box is suitable for the safety performance test of electronic components, providing reliability tests, product screening tests, etc. At the same time, through this equipment test, the reliability of the product and the quality control of the product can be improved.
During the test of the rapid temperature change test box, the operation door should not be opened for a long time to avoid water mist in the box.
1. The rapid temperature change test box improves the control precision of the test box and reduces the temperature fluctuation, thereby reducing the temperature deviation.
2. Reduce the supply air temperature and increase the supply air volume: the supply air temperature difference and supply air volume depends on the size of the cooling load (for low temperature test box) or heat load (for high temperature test box).
3. Improve the rationality and perfection of the structure design of the test box: the equipment structure should be symmetrical, such as left and right, upper and lower air ducts; if two fans are used, one left-handed and one right-handed should be used to make the wind even. It is necessary to install a wind regulating plate at the air outlet to adjust the wind direction to make the temperature inside the box even.
4. Increase the wind speed under the conditions allowed by the test method standards to enhance the flow of air in the box, avoid dead zones, and make the temperature in the box even.
5. When using the test box, pay special attention to the volume and weight of the sample, as well as the placement in the working space of the test box.
6. Adjust the median of the temperature field to reduce the temperature deviation.
7. There should be a good ventilation space behind the test box, so that the condenser can play the role of heat dissipation. And avoid direct sunlight, do not approach heating elements such as stoves, so as not to affect the freezing effect.
8. Although the internal and external materials of the test box are made of high-grade stainless steel, the place where the water is wet can easily cause the machine parts and the electronic control center to produce adverse effects and reduce efficiency, and should be avoided as much as possible.
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