High efficiency filter leak detection external test method
2014/2/17 Viewers:
High efficiency filter leak detection external test method
Due to external particle content is not stable, so the test method is not desirable, air filterLeak detection, high efficiency filter price, high efficiency filter factory --High efficiency filter leak detection external test method, external test basically is used when testing the efficient air conditioning phase surface mesh, the external air inhaled directly because of the filter, if the upstream again casting particle is a bit of a waste, so use of external particles, as a challenge in the screen surface directly for leaks.
Test equipment
External test method most used in air conditioning box, use the instrument depends on the primary system, as long as related to the FDA, must use aerosol photometer, and semiconductor related, must be used particle counting gas.
The test way
External test method test steps are as follows.
1. Record mesh on the surface of the figure number and serial number.
2. Determine the air conditioning system normal operation and is available for testing, wind speed and air volume it is necessary to adjust the balance.
3. The use of aerosol photometer or particle counter test upstream particle concentrations.
4. The upstream particle concentrations after confirmation, can be in the screen surface scan, check the leakage.Scanning mode in accordance with the different instruments, please refer to the first and second quarter.
5. Found leaking, need to repair or replace the strainer.
6. Border part also want to scan.
Acceptance of the benchmark
1. Read all continuity value more than 0.01 ﹪ as leak, every piece of mesh is not allowed for leaks, testing and repairing in border also can not have leakage.
2. Every piece of mesh repair area shall not be greater than the screen area 3 ﹪.
3. The length of any repair shall not be greater than 38 ㎜ (1.5 inches).
Test equipment
External test method most used in air conditioning box, use the instrument depends on the primary system, as long as related to the FDA, must use aerosol photometer, and semiconductor related, must be used particle counting gas.
The test way
External test method test steps are as follows.
1. Record mesh on the surface of the figure number and serial number.
2. Determine the air conditioning system normal operation and is available for testing, wind speed and air volume it is necessary to adjust the balance.
3. The use of aerosol photometer or particle counter test upstream particle concentrations.
4. The upstream particle concentrations after confirmation, can be in the screen surface scan, check the leakage.Scanning mode in accordance with the different instruments, please refer to the first and second quarter.
5. Found leaking, need to repair or replace the strainer.
6. Border part also want to scan.
Acceptance of the benchmark
1. Read all continuity value more than 0.01 ﹪ as leak, every piece of mesh is not allowed for leaks, testing and repairing in border also can not have leakage.
2. Every piece of mesh repair area shall not be greater than the screen area 3 ﹪.
3. The length of any repair shall not be greater than 38 ㎜ (1.5 inches).
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