10 correct high and low temperature laboratory maintenance work

The walk-in high and low temperature laboratory also needs maintenance, so what does the maintenance work of the walk-in high and low temperature laboratory include?

 

1. The suction and exhaust ports of the test products placed in the walk-in temperature and humidity test system away from the air conditioning channel should have over-temperature protectors. Set the temperature of the over-temperature protector to be lower than the temperature of the cabinet. If an alarm and buzzer appear, it means that it functions normally. After completing the above test, the set value of the temperature protection should be properly reset, otherwise it may cause inappropriate suspension.

3. Once a year, use a vacuum cleaner to remove the dust in the power distribution room and the water circuit room. Once a month, use a dry cloth to clean up the water in the drip tray of the freezing unit.

4. Carry out the action test of the main power switch (leakage circuit breaker) once a month regularly to ensure that the switch functions as a leakage protector under the load capacity. The specific steps are: first, please confirm that the main power switch is turned "ON", that is, the system is powered on, and then press the test button. This function is normal if the switch lever of the earth leakage circuit breaker falls down.

5. The main box of the walk-in temperature and humidity test system should be protected during use, and should not be subjected to strong collisions with sharp or blunt objects.

6. The temperature and humidity test system of the walk-in high and low temperature (humid heat) laboratory must be operated and maintained by special personnel. Strictly abide by the system operating procedures to prevent others from operating the system illegally.

7. The long-term shutdown of the walk-in high and low temperature laboratory will affect the effective service life of the system. Therefore, the system should be turned on at least once every 10 days; do not repeatedly stop the system in a short period of time, and start it every hour. The number of times should be less than 5 times, and the time interval between each start and stop should not be less than 3min; do not open the door of the walk-in temperature and humidity test system at low temperatures to prevent damage to the door seal.

8. A system usage file should be established to facilitate the maintenance of the system. The use file should record the start and end time (date) of each operation of the system, the type of test, and the ambient temperature; when the system fails, the failure phenomenon should be described in as much detail as possible; the maintenance and repair of the system should also be as much as possible. Record in detail.

9. In order to ensure the normal and clean water supply of cooling water, clean the cooling water filter of the refrigerator and the cooling water tower of the water supply every 30 days. Clean the cooling tower reservoir.

10. During the use of the laboratory, various electrical accessories should not be adjusted arbitrarily, so as not to affect the performance; after the leakage switch is disconnected due to a short circuit, it is necessary to check the contacts. If the main contact is severely burned or has pits, it needs to be repaired in time.

 

The above are the 10 important tasks for the maintenance of the walk-in high and low temperature laboratory, leave a message to us for more knowledge!