Precautions for wet-bulb gauze in constant temperature and humidity test chambers

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1. If only a temperature test is to be conducted, remove the wet-ball gauze； 2. If the wet ball gauze becomes hard and has poor water absorption, it should be replaced promptly; otherwise, it may lead to inaccurate humidity readings ； 3. There are two sensors inside the constant temperature and humidity test chamber (a temperature sensor and a humidity sensor); the wet wadding should be hung on the lower one of these sensors ； 4. In the absence of wet ball gauze, regular wet wipes can be used as a substitute ； 5. Before starting the test, it is necessary to check the placement of the wet ball gauze to prevent difficulties in maintaining a stable humidity level ； 6. Wet ball gauze should generally be cleaned once a month, with a new one replaced every three months ； 7. Wash your hands before replacing the wet ball gauze to prevent contaminating it (the wet ball gauze has been sterilized before leaving the factory).