When selecting the constant temperature and humidity test chamber, you must pay attention to the following points:
First, the choice of studio size:
The selection of the size of the working room of the constant temperature and humidity test chamber is determined according to the size of the test workpiece. Generally speaking, the selection of the size is based on the test of the largest workpiece volume accounting for one-third of the volume of the test chamber, not more than two-thirds The size of the test chamber is about 5CM before, after, during, and after constant temperature and humidity tests, to ensure that the circulation system of the test chamber can work normally, thereby ensuring the temperature uniformity and fluctuation of the test chamber during operation.
Second, the power supply selection:
There are two kinds of domestic voltages, which are 220V for civilian use and 380V for industrial use. The voltage of the standard test box is 380V. If the customer does not have 380V voltage and the temperature is below -40 degrees, 220V voltage can be used. Other models If you want to change the voltage requirements of the test chamber, you can contact the manufacturer directly (contact phone). The manufacturer recommends to choose the 380V four-phase power interface, because it is more stable for the entire laboratory, and it is also good for the life of the equipment itself;
3. Selection of air-cooled and water-cooled compressors:
Constant-temperature and constant-humidity test chambers are generally air-cooled, and water-cooled ones are generally large-scale constant-temperature and constant-humidity test chambers or rapid rise and fall temperature test chambers of large boxes. Generally, cold and heat shock test chambers use water cooling more;
4. Safety protection system:
Especially the reliability test, the test period is long, and the object of the test is sometimes a high-value military product. During the test, the test personnel often have to perform operations or test work around the site. Therefore, the environmental test equipment must have safe operation and operation. Convenient, reliable use, long working life and other characteristics to ensure the normal conduct of the test itself. The various protection, warning measures and safety interlocks of the test equipment should be perfect and reliable to ensure the safety and reliability of the test personnel, the tested product and the test equipment itself.
Foshan Gruwill Hardware Products Co., Ltd. , https://www.gwwirebasket.com