The main function of the constant temperature and humidity test chamber is to conduct high and low temperature impact tests on the tested products through the instantaneous conversion of high and low temperatures, and to test the product's resistance to natural extreme cold and extreme heat. Perhaps some customers will ask, is there any rule to follow for the temperature change of the machine? Let our company briefly introduce it to you:

There are two ways to describe the rapid temperature change of the constant temperature and humidity test chamber. One is the average temperature rise and fall speed throughout the process, and the other is the linear temperature rise and fall speed, which is actually the average speed every 5 minutes. The average speed throughout the process refers to the ratio of the difference between the highest temperature and the temperature to time within the temperature change range of the test chamber. At present, the technical parameters of the temperature change rate provided by various foreign environmental test equipment manufacturers all refer to the average rate throughout the process.

The linear temperature rise and fall speed of the constant temperature and humidity test chamber refers to the temperature change rate that can be guaranteed within any 5-minute time period. In fact, for the high and low temperature test chamber with rapid temperature change, the difficulty of ensuring the linear temperature rise and fall speed is the greatest and most critical section. The vortex flowmeter can achieve a cooling rate of the test chamber in the last 5-minute time period of the cooling section. Therefore, the test equipment is best to have two parameters: the average heating and cooling speed throughout the process and the linear heating and cooling speed (average speed every 5 minutes). Generally speaking, the linear heating and cooling speed (average speed every 5 minutes) is 1/2 of the average heating and cooling speed throughout the process.