1, constant temperature and humidity test chamber casing cleaning and maintenance of internal and external: internal impurities,should be taken before operation, power distribution room clean at least once a year or more, can use a vacuum cleaner when cleaning will indoor dust gettering, casing external should also wash once a year of above, can wipe when cleaning with soap and water first, constant temperature and humidity test chamber inspection and maintenance of humidifier and water within the humidifier should be replaced once a month, to ensure the water quality clean, humidification water dish should be cleaned once every month, to ensure the water flow.
2. Check and adjust the water level of the wet bulb in the constant temperature and humidity test chamber: the water level of the water accumulator shall not be too high, so that the water overflow of the water accumulator or too low, so that the wet bulb test cloth absorbs water abnormally, affecting the accuracy of the water bulb, the water level of the water accumulator shall be kept about 6 minutes full. The water level of the water accumulator shall be adjusted to adjust the height of the water accumulation box.
3. Replacement of wet bulb test cloth in the constant temperature and humidity test chamber: when the surface of the test cloth is not clean or hard, or after the temperature control, the test cloth must be replaced before the temperature and humidity bulb control.The test cloth should be replaced once every three months. Clean the temperature measuring body with a clean cloth and clean it first when replacing the new test cloth.
4, constant temperature and humidity test chamber check overtemperature protection device: constant temperature and humidity test chamber, running of overtemperature protection * to set a high value of the temperature test box to the set point of overtemperature protection, the power supply of heater is stopped, "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 (the set of wet ball overtemperature protection device).
5. Dust of the condenser in the constant temperature and humidity test chamber: the condenser should be maintained regularly and monthly. Use vacuum cleaner to remove dust attached to the condenser heat mesh or spray dust with high-pressure air.