High and low temperature test chambers are suitable for high and low temperature reliability tests of industrial products. They are used to test the performance indicators of parts and materials of related products such as electronics and electrical engineering, automobiles and motorcycles, aerospace, ship weapons, colleges and universities, scientific research institutions, etc. under high and low temperature cycle changes. It is precisely because of its wide range of applications that its sales in the market are also increasing day by day.
In fact, the sales of high and low temperature test chambers are good, and as a manufacturer, Shanghai Daohan Industrial Co., Ltd. should be happy. However, recently we often hear that customers have reported to us that they were injured due to improper use of high and low temperature test chambers, which makes us very sorry. Therefore, we take this opportunity to introduce to you the knowledge of using the constant temperature and humidity test chamber.
First. High temperature burns. The temperature inside the small high and low temperature test chamber is very high when doing high temperature tests. During the test or just after the test, if you need to open the door, be especially careful to avoid burns.
When the refrigerator is working, the exhaust copper pipe temperature is very high. Do not touch it during operation to avoid burns.
Second, low temperature frostbite. The temperature inside the small high and low temperature test chamber is very low during the low temperature test. During the test or just after the test, if you need to open the door, be especially careful to avoid frostbite.
Third, electric shock. Although the equipment has sound anti-electric shock measures, you still need to pay attention, especially the electrical control system. Do not touch the electrical parts when working.
High and low temperature test chamber The test chamber is used for high and low temperature reliability tests of industrial products. It is used to test the various performance indicators of parts and materials of related products such as electronics and electrical engineering, automobiles and motorcycles, aerospace, ship weapons, colleges and universities, scientific research institutions, etc. under high temperature and low temperature (alternating) cycle changes. The test chamber consists of a refrigeration system, a heating system, a control system, a humidity system, an air circulation system and a sensor system. The above systems belong to two aspects: electrical and mechanical refrigeration.
The average speed throughout the process refers to the ratio of the difference between the highest temperature and the lowest temperature to time within the temperature range of the test chamber. The technical parameters of the temperature change rate provided by various foreign environmental test equipment manufacturers for high and low temperature chambers refer to the average speed throughout the process.
Linear heating and cooling speed refers to the temperature change rate that can be guaranteed within any 5-minute time period. In fact, for high and low temperature test chambers with rapid temperature changes, it is most difficult to ensure the linear heating and cooling speed. The most critical section is the cooling rate that the test chamber can achieve within 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.
