In various test chambers, it is often impossible to distinguish between high and low temperature test chambers and constant temperature and humidity test chambers, even thinking that they are the same equipment. Today, Xiaobian will tell you about these two kinds of equipment.
First let's take a look at what the two devices do.
1. High and low temperature test chamber: This is a device for testing the reliability of industrial products and other performance indicators for industrial products in the case of alternating high and low temperature cycles.
2. Constant temperature and humidity test chamber: It is used for the tests of various materials (electrical appliances, instruments, metals, chemicals, vehicles, medical, aerospace, building materials, etc.) in terms of heat resistance, cold resistance, dry resistance and moisture resistance.
Let's take a look at the difference in temperature at the time of the experiment.
1. High and low temperature test chamber: the general temperature will be -20 ° C or lower, and the humidity can be done (only 15 ~ 85 ° C limit).
The damp heat alternation test is mainly: during a certain period of time, the temperature remains constant and the humidity is tested according to the rate of change you set, or vice versa. There are also tests that require temperature and humidity to vary simultaneously at a set rate. The general constant temperature and humidity test is to control the humidity after the temperature is reached first (alternative refers to simultaneous control of temperature and humidity).
2. Constant temperature and humidity test chamber: the general temperature is between 15 °C and 85 °C, and the humidity can be 20%~98% R.H. Of course, lower humidity can be made according to requirements.
In addition, the general constant temperature and humidity test chamber can do the "wet heat exchange test". It depends mainly on the alternating test conditions you have to do. When you purchase the equipment, you can inform the supplier of your requirements to comply with your requirements. Design and debug. Of course, depending on the conditions you mention, the price of the manufacturer is different.