The high and low temperature test chamber is suitable for the reliability test of high and low temperatures of industrial products. The components and materials of electronic products, aerospace, marine weapons, universities, scientific research units and other related products are cyclically changed at high and low temperatures (alternating) Under the circumstances, check its performance indicators. The product has a wide temperature control range, and its performance indicators have reached the national standard high and low temperature test chamber technical conditions. It is applicable to GB2423.1 and GB2423.2 "Electrical and Electronic Products Environmental Test Test A: Low Temperature Test Method, Test B: High Temperature Test Method "conducts low-temperature and high-temperature tests and constant temperature tests on products. The main characteristics of the high and low temperature test chamber and the calculation of the air supply rate
The high and low temperature test box has a perfect shape design: arc shape and surface spray treatment, high texture appearance, and the use of flat non-reaction handles, easy to operate, safe and reliable. The observation window of the high and low temperature test chamber uses a three-layer vacuum-coated window and Philips energy-saving fluorescent lamps, without the need to wipe the fog and maintain a clear observation effect, and can observe the status of the sample at any time. The pipeline of the humidification system of the high and low temperature test chamber is separated from the control circuit: the pipeline of the humidification system is separated from the power supply, the controller, and the circuit board, which can avoid the leakage of the pipeline and affect the circuit and improve safety.
The air circulation in the box of the high and low temperature test box is driven by the motor to generate wind, and the air is sent to all corners of the box through the vertical delivery method, and the temperature of each point is guaranteed to be balanced. Therefore, each damaged and stressed environment of the tested product is the same, and the product test results are very accurate.
The wind speed of the high and low temperature box in the standard is calculated as follows:
V = (VA + VB + …… + VM) / n
In the formula: V——wind speed, m / s;
(VA, VB…, VM) —— wind speed at each measuring point, m / s;
n——the number of measuring points.
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