Many customers do not have a high degree of awareness of high-low Temperature Test Chambers, and think that the high-low Temperature Test Chambers on the market are similar and there will be no difference. It is precisely because of this idea that many customers have purchased Test Chambers and found that the parameters of the test results are very different from the requirements. So, how to choose a high-low Temperature Test Chamber? We suggest that you can start from the following aspects.
1. What are the precautions for purchasing high-low Temperature Test Chambers?
The high-low Temperature Test Chamber has one or more high-low temperature changes and cycle degrees. The whole test process can be completed according to the pre-prepared curve, and the temperature can be precisely controlled within the capability range of the maximum heating and cooling rate. The heating and cooling rate is controlled according to the set curve, and the high-low temperature alternating humidity and heat Test Chamber can also preset the temperature and humidity curve according to the control ability.
It is difficult to completely and accurately reproduce the environmental conditions existing in nature in the laboratory. However, within a certain tolerance range, one can accurately and approximately simulate the external environmental conditions experienced by engineering products during use, storage and transportation. This paragraph is summarized in engineering language: the environmental conditions created around the tested product (including the platform environment) should meet the environmental conditions and tolerance requirements specified in the product test specification.
According to the high temperature and low temperature test values and test time specified for different types of products, the requirements for temperature field uniformity and temperature control accuracy in the test specifications should also be met. Only in this way can the reproducibility of the environmental conditions in the environmental test be guaranteed.
2. What is the key to purchasing a high-low Temperature Test Chamber?
(1) The temperature control instruments of the high-low Temperature Test Chambers are imported instruments.
(2) The box door, working room, and shell are all equipped with high-temperature sealing strips and pressing devices, which can effectively ensure the sealing and heat insulation performance of the box.
(3) The refrigeration system adopts a fully enclosed compressor to ensure the low temperature stability of the high-low Temperature Test Chamber.
(4) The material of the working room and the test sample rack is made of stainless steel, and the outer box is made of good cold-rolled plate sprayed with plastic.
(5) With over-temperature protection, short-circuit protection and control circuit overload protection functions, it is safe and reliable to use.
A high-quality high-low Temperature Test Chamber needs to meet the above conditions. A high-quality high-low Temperature Test Chamber can be used for more than ten years in normal use. Some low-quality products will often break down or be scrapped for maintenance due to major failures that cannot be resolved after two or three years of use.
