The internal and external conditions of the constant temperature and humidity test chamber and its maintenance.
1. The internal impurities should be removed before operation in the constant temperature and humidity test chamber.2. The power distribution room should be cleaned at least once a year. When cleaning, vacuum can be used to remove the indoor dust.3. The external of the box should be cleaned more than once a year.4. Check and maintain the humidifier in the constant temperature and humidity test box. The water stored in the humidifier should be replaced every month to ensure the water quality is clean.5. Constant temperature and humidity test chamber check constant temperature and humidity test chamber operation overtemperature protection, overtemperature protection set a high value added 20 ℃ ~ 30 ℃.Test of temperature rise to overtemperature protection in the set point, the power supply of heater is stopped, "OVERHEAT" overtemperature warning lights but the fan is still running, if long time and unattended operation, please do check before running overtemperature protector, if set is in order [of wet ball overtemperature protector set to 120 ℃].6. The cleaning of the condenser dust in the constant temperature and humidity test chamber shall be maintained regularly and monthly, and the dust adhering to the condenser's heat net sheet shall be sucked and removed by vacuum cleaner or by high-pressure air spraying to remove the dust.7. The replacement of the wet ball test cloth by the constant temperature and humidity tester. The test cloth must be replaced when the surface of the test cloth is not clean or hard, or when the temperature control is completed and the wet ball control is continued.The test cloth should be replaced about once every three months. When replacing, the temperature measuring body [sen-sor] should be wiped with a clean cloth. When replacing the test cloth, it should be cleaned first.8. Check and adjust the water level of the wet ball in the constant temperature and humidity test box. The water level of the wet ball shall not be too high, so that the water overflows the reservoir or is too low.The water level of the reservoir can be adjusted.