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Second, the power supply selection constant temperature and humidity box whether it is 220V or 380V are three-phase power interface, if the temperature is below -40 degrees, and the box is above 225L, it is recommended to choose 380V four-phase power interface, because this is the whole The power consumption of the laboratory is relatively stable, which is also good for the life of the equipment itself;
Third, air cooling and water cooling options:
The constant temperature and humidity chamber is generally air-cooled. Water-cooled is generally a large-scale constant temperature and humidity chamber or a large-box rapid temperature-rise test machine. Generally, the cold-hot shock test chamber is water-cooled.
Fourth, the constant temperature and humidity box use environment (1). Allowable use temperature range 0 ~ 35 ° C
(2). Performance guarantee range: 5~35°C
(3) Relative humidity: no more than 85%
(4). Atmospheric pressure: 86 ~ 106Kpa
(5). There is no strong vibration around (6). Direct sunlight or direct exposure to other heat sources (7). Natural drain: ※ There should be no bumps in the middle of the drain, and the floor of the house must not have extreme inclination.
Constant temperature and humidity box means to set the temperature and its corresponding humidity point within a certain range!! (The range is usually small, the temperature is 0~70 degrees humidity 40~95%RH)
How to choose constant temperature and humidity test chamber
First, the size selection Generally, the size of the constant temperature and humidity chamber is determined according to the size of the test product. According to the requirements of GB2423, the size of the test studio is greater than or equal to 3 times that of the test product. The effect of such a test is ideal for Zui. If your product is 300 wide 250 long and 180 high MM, if the number of test products is not much, 408L (studio 600X850X800MM) will suffice, of course, you can choose bigger, you can test in multiple layers;