To determine whether the stud filter cartridge needs to be replaced, you can refer to the following methods:
It can be judged by looking at the differential pressure gauge on the dust collector to see the resistance value.
Judgment of use time: The service life of the stud filter cartridge is usually about a few months to a year, and the specific time depends on the brand and specification of the filter cartridge. It is possible to tell if the cartridge is nearing the end of its life by recording the time it has been in use, such as the date of purchase or the time each filter is replaced. If it has been used longer than the recommended replacement time, the cartridge may need to be replaced.
Air detection: The main function of the stud filter cartridge is to filter the impurities and harmful substances in the air, so the detection of air can preliminarily judge the effect of the filter cartridge. The air can be tested using specialized air testing instruments or by using commercially available air test strips. If the test results show that the air is not significantly improved compared to before the cartridge was applied, there may be a problem with the cartridge filtration and the cartridge may need to be replaced.
Filter cartridge use feeling: During use, you can also judge whether the filter cartridge needs to be replaced by observation and feeling. For example, if the air velocity is significantly slower before and after use, there may be more impurities accumulated inside the filter cartridge and needs to be replaced. In addition, if there is a significant difference in air odor or color before and after use, it may also be a sign that the cartridge needs to be replaced.
Appearance inspection of filter cartridge: Regularly checking the appearance of the filter cartridge is also one of the important indicators to judge whether the filter cartridge needs to be replaced. If the surface of the filter cartridge is dark or black, and there is obvious sediment or dirt, it means that the filter layer inside the filter cartridge may be blocked and cannot filter the water properly. At this point, it is necessary to replace the filter cartridge with a new one.
You can also make a comprehensive judgment based on the actual situation and the recommendations of the device manufacturer. If you are unsure about the replacement time of the filter cartridge, you can consult a professional.