The constant temperature and humidity chamber is a kind of equipment for testing the performance in terms of heat resistance, cold resistance, dry resistance, moisture resistance of various materials (such as electronics, electrical appliances, communications, instruments, vehicles, plastic products, metal, food, chemistry, building materials, medical, aerospace, etc.).
The high and low temperature test chamber is a kind of equipment for testing the reliability in high and low temperature or other performance indicators of industrial products under the condition of high and low temperature (alternating) cyclic changes.
(1) From the temperature of tests in the high and low temperature test chamber and the constant temperature and humidity chamber:
① The tests in the constant temperature and humidity test chamber are generally carried out with the temperature of 15 degrees to 85 degrees, and the humidity can be 20% to 98% R.H. Of course, it can also be carried out with lower humidity according to requirements. We call it a low temperature and low humidity test chamber.
② The temperature of the high and low temperature test chamber will generally be -20 degrees or lower, and humidity can be set (only limited to 15 to 85 degrees).
The humidity and heat alternating test mainly means: in a certain period of time, the test is carried out under the condition that temperature remains constant and the humidity is at the rate of change you set before, or vice versa. There are also tests that require simultaneous changes in temperature and humidity at a set rate. The general constant temperature and humidity test is to control the humidity after the temperature is reached (alternating means that the temperature and humidity are controlled at the same time).
(2) If you want to achieve the cycle of high temperature, low temperature and humidity at the same time, the high and low temperature alternate humidity and heat test chamber, the constant temperature and humidity test chamber, etc., should be used;
(3) The high and low temperature test chamber is only used for the cycle of high temperature and low temperature, without humidity;
(4) The general constant temperature and humidity test chamber can do the "alternate humidity and heat test", but it depends on the alternating test conditions. If you want to buy equipment, you should inform the supplier of the requirements before purchasing the equipment. So that the equipment can be designed and debugged according to the requirements. Of course, according to the requirements you have mentioned, the price is not the same.
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