Electronic industry, national defense technology, chemical electronics, machinery manufacturing, aerospace and other fields have been widely used. The constant temperature and humidity test chamber produced by it adopts the perfect modeling design of Germany, which is the international leader. Arc modeling and surface spray treatment, high texture appearance, and the use of plane non reaction handle, easy to operate, safe and reliable. And won the unanimous praise of the majority of users. Shangzhongtian instrument obtained the international ISO90001 quality system certification in 2003.

So how to maintain, clean and maintain the constant temperature and humidity test chamber in daily work?

1. Cleaning and maintenance of the inside and outside of the constant temperature and humidity test chamber

1) The internal impurities of the constant temperature and humidity test chamber shall be removed before operation.

2) The power distribution room shall be cleaned at least once a year. During cleaning, the indoor dust can be removed by vacuum cleaner.

3) The outside of the box must also be cleaned more than once a year. When cleaning, wipe it with soapy water first.

2. Inspection and maintenance of humidifier in constant temperature and humidity test chamber

The water storage in the humidifier shall be replaced once a month to ensure that the water quality is clean. The humidifying water tray shall be cleaned once a month to ensure smooth water flow.

3. Check the overtemperature protector in the constant temperature and humidity test chamber

When the constant temperature and humidity test chamber is running, the maximum setting value of overtemperature protection shall be increased by 20 ℃ ~ 30 ℃. When the temperature in the test chamber rises to the set point of overtemperature protection, the power supply of the heater will stop, "overtemperature warning light" is on, but the fan is still running. If it runs for a long time and is unattended, be sure to check whether the overtemperature protector is properly set [the setting of wet bulb overtemperature protector is 120 ℃].

4. Dust removal of condenser in constant temperature and humidity test chamber

The condenser shall be maintained regularly every month, and the dust attached to the heat dissipation net of the condenser shall be absorbed by vacuum cleaner or sprayed by high-pressure air.

5. Replacement of wet ball test cloth in constant temperature and humidity test chamber

When the surface of the test cloth is not clean or hardened, or after the temperature control is completed, the test cloth must be replaced before the temperature and humidity sphericity control is continued. The test cloth shall be replaced once every three months. When replacing, the temperature measuring body [sensor] shall be wiped with a cleaning cloth. When replacing a new test cloth, it shall be cleaned first.

6. Inspection and adjustment of wet bulb water level in constant temperature and humidity test chamber

The water level in the water tank shall not be too high, so that the water overflows the water tank or is too low, so that the water absorption of the wet ball test cloth is abnormal, which affects the accuracy of the wet ball, and the water level can be kept at about six points. The height of the ponding box can be adjusted by adjusting the water level of the ponding drum.