1. Daily maintenance
Regular inspection: Check the operating status of the filter every day, observe the reading of the differential pressure gauge, and record the trend of differential pressure changes.
Clean the surrounding environment: Keep the installation area of the filter and the interior of the air duct clean to avoid dust accumulation that may affect the filtration effect.
Leak detection test: Conduct a PAO leak detection test on the filter every quarter to check for any leakage. If leakage is found, it should be repaired or replaced in a timely manner.
2. Replacement cycle
Regular replacement: When the pressure difference of the filter reaches twice the initial pressure difference or exceeds 500Pa, it needs to be replaced in a timely manner.
Regular replacement: Even if the pressure difference has not reached the upper limit, it is necessary to replace it regularly according to the usage conditions (usually 6-12 months, and 3-6 months under harsh conditions).
Special circumstances replacement: When the filter is damaged, deformed or fails the leak test, it must be replaced immediately.
3. Replacement precautions
When replacing, the relevant air supply system should be turned off, and clean gloves, masks and other protective equipment should be worn to avoid contamination of the filter by human hair and dust.
When disassembling the old filter, it should be wrapped in a sealed bag and properly handled to prevent the spread of dust.
Before installing a new filter, it is necessary to check whether the appearance of the filter is intact and whether there are any defects such as damage or gle leakage.b