As a precision environmental simulation device, the stable operation of a small constant temperature and humidity testing machine is crucial for ensuring the accuracy and reliability of test data. It is particularly necessary to develop a scientific and reasonable daily maintenance plan in order to extend the service life of equipment and improve testing efficiency. The following is a detailed daily maintenance plan for a small constant temperature and humidity testing machine.

1、 Equipment cleaning and maintenance

Cleaning of shell and control panelRegularly use a cleaning cloth or hair dryer to remove dust and debris from the equipment casing and control panel, keeping the appearance of the equipment clean. When cleaning, avoid using cleaning agents containing corrosive chemicals to prevent damage to the surface of the equipment.

Internal cleaning: After each test, promptly clean the impurities and accumulated water inside the test chamber to prevent any impact on the test results. Use neutral detergent and soft cloth for cleaning, and strictly prohibit the use of acidic, alkaline or rough cleaning tools.

Filter replacement: For testing machines equipped with air circulation systems, filter replacement is crucial. It is recommended to replace the filter element every three months. If the frequency of use is high, the replacement cycle should be appropriately shortened. The filter element can effectively filter dust and particles, ensuring the cleanliness and normal circulation of the air inside the test chamber.

2、 Key component inspection and maintenance

Power cord inspection: Regularly check whether the power cord is worn, aged, or has safety hazards such as damage. If there is any abnormal situation, the power cord should be replaced in a timely manner to ensure the normal power supply of the testing machine.

Calibration of temperature and humidity sensors: The performance of temperature and humidity control directly affects the accuracy of test results. It is recommended to perform temperature and humidity calibration once a year to ensure the accuracy and stability of the test chamber. During the calibration process, it is necessary to strictly follow the calibration specifications for operation.

Humidifier and water tank maintenance: The water stored in the humidifier should be replaced once a month to ensure clean water quality. At the same time, clean the humidification water tray once a month to prevent scale blockage from affecting the humidification effect. In addition, regularly check whether the water tank and pipes are leaking or blocked, and promptly repair or replace them.

3、 Operating Environment and Operating Standards

Operating environment: The testing machine should be placed in a dry and well ventilated environment to avoid moisture and dust. At the same time, pay attention to the operating temperature and humidity range of the equipment, and do not exceed its designed working conditions.

Operating standards: Strictly follow the equipment operating procedures to avoid others violating regulations. During the experiment, real-time monitoring of temperature and humidity changes inside the test chamber is carried out to ensure the stability of the test conditions. After the experiment is completed, set the temperature near the ambient temperature and work for a period of time before cutting off the power.