common problem
1. The high-low temperature chamber door is still at high temperature, which may cause burns.
2. Make sure that the case needs to be safely grounded to prevent tip discharge.
3. Prevent continuous opening and closing of the refrigeration unit within 3 minutes.
4. If the hot test sample is built in a high-low temperature box, please use an additional switching power supply to operate the switching power supply of the sample. Do not immediately use the switching power supply of the equipment.
5. The power circuit isolating switch and overheating protection device are for the safety maintenance of the equipment and its operators, please maintain it regularly.
Definition of Ambient Humidity
The ambient humidity of the constant temperature and humidity Test Chamber refers to the composition of water vapor in the steam. The common air humidity, absolute humidity and moisture content indicate the ambient humidity. They are related to each other and can be converted according to formulas. Below is a description of the different definitions of air humidity, absolute humidity and moisture content.
Air humidity: Under the same temperature and working pressure standard, the ratio of the mole fraction Xv of water vapor in the human body water to the mole fraction Xsv of water vapor in the saturated state. The mark U means U=(Xv/Xsv)100%.
