People who have been in contact with the environmental testing industry are not unfamiliar with constant temperature and humidity test chambers and machines, as they are the main force of industry products. In addition to standardized operation and use, maintenance and upkeep of equipment are also important. The following are several maintenance and upkeep summarized by Gao Tian

1. Cleaning of dust on the condenser of the constant temperature and humidity test chamber and constant temperature and humidity machine: The condenser should be maintained regularly every month. Use a vacuum cleaner to remove the dust attached to the condenser cooling mesh or use high-pressure air to spray the dust.

2. Cleaning and maintenance of the inside and outside of the constant temperature and humidity test chamber and the constant temperature and humidity machine: Before operation, internal impurities should be removed. The distribution room should be cleaned at least once a year, and a vacuum cleaner can be used to remove indoor dust during cleaning. The outside of the box should also be cleaned more than once a year, and soapy water should be used to wipe it before cleaning. For the inspection and maintenance of the constant temperature and humidity test chamber and the constant temperature and humidity machine humidifier, the water stored in the humidifier should be replaced once a month to ensure clean water quality. The humidification water tray should be cleaned once a month to ensure smooth water flow.

3. Inspection and adjustment of the water level in the constant temperature and humidity test chamber and the constant temperature and humidity machine: The water level in the water tank should not be too high, causing water to overflow from the tank, or too low, causing abnormal water absorption of the wet ball test cloth and affecting the accuracy of the wet ball. The water level should be kept about six tenths full. The adjustment of the water level in the water tank can adjust the height of the water tank.

4. Constant temperature and humidity test chamber, constant temperature and humidity machine inspection over temperature protector: When the constant temperature and humidity test chamber and constant temperature and humidity machine are running, the setting of the over temperature protection is highest. When the temperature inside the test chamber rises to the set point of the over temperature protection, the power supply to the heater stops, and the over temperature warning light is on but the fan still runs. If it runs for a long time without supervision, please make sure to check the over temperature protector before operation to see if it is properly set (setting of the wet bulb over temperature protector).

5. Replacement of constant temperature and humidity test chamber and constant temperature and humidity machine wet bulb test cloth: When the surface of the test cloth is not clean or hardened, or after temperature control is completed, the test cloth must be replaced before continuing with temperature and humidity bulb control. The test cloth should be replaced about every three months. When replacing, the temperature measuring body should be wiped with a clean cloth. When replacing the new test cloth, it should be cleaned first.