The Automated Filter Scanner test system AFS 150 is designed to meet the requirements of testing air filters according to EN1822-4 = leackage test/filterscan and EN 1822-5 = integral separation efficiency test (analogous ISO 29463-4/ -5) with a high grade of automatisation. Main components of the test rig for testing high efficiency particulate air filters (EPA, HEPA, ULPA) are:
Air flow system with flow rate measurement and inlet filter
Filter holder cabinet
Upstream particle instrumentation (Aerosol Generator ATM, particle counter with Aerosol Dilution System DIL 550)
Scanning traverse with downstream sampling probe, particle counter (optional air velocity probe)
Electrics, PLC control and Windows software
Advantages
Constant test conditions acc. to guideline EN 1822-4 by automated test procedure
Effective testing of bigger quantities
Automatic issue of a test report as quality assurance during filter production process – also available for cost-effective test rig version with manual test
Flexible use for varying filter dimensions
Costumer-specific data reports/ test reports possible
Easy-to-use control and data acquisition software AFS150Win
Principle
The test filter clamped in the filter holder is passed by a test volume flow and charged with a test aerosol. Leak detection and filtration efficiency measurement is performed automatically. The relevant test data and results are logged.