TOPAS i® Sries AFC Particle Filter Media Test Rig Filter Tests with the Automated Test Rig AFC 131 Testing Filter Media This is important for the development and optimization of filter materials as well as for quality assurance during the production process. Differential pressure drop, particle size dependent filtration efficiency and dust loading capacity are of most interest for filter material characterization. For these tasks Topas developed the series AFC test rig which facilitates filter tests in accordance to with international standards. Dust loading tests and dust capacity tests in accordance with the general requirements of EN 779 and ISO 11 155-| can also be performed in small scale. Due to its compact and lightweight design this test rig can be used in the laboratory. Only single-phase mains power and compressed air are needed to run filter tests. The Topas control software runs under Windows on a standard PC. Special Advantages Flexible design facilitates modification and future extension 镕 Test rig is fully computer controlled by user-friendly PAFWin 3.0 software Wide variety of test aerosols possible (atmospheric, dust or droplets) Օ Combination of Topas instruments ensures best performance at optimum price Applications Dust loading tests Օ Small scale filter tests along the general lines of other standards - Air cleaning filters EN 779, - Cabin air filters ISO 11155-1 Development and optimization of filter media Օ Quality assurance

Filtration Efficiency Filtration Efficiency Fractional efficiency from 0.3 up to 20 pm is measured with an optical particle sizer. A switching valve controls aerosol sampling upstream and downstream of the filter. The particle counter is purged with particle free air between upstream and downstream samples. The sampling time is selectable from the software. T 10 OPC dsao 0,3-20,0|jm R.S232<h> | \7 RS485<-> 11 Solenoid valve 12 Pressure tank 13 Membran valve 14 Blow tube 15 Dust protection cover 16 HEPA filter capsule 17 HEPA filter 305x305mm 18 Frequency converter 19 Controller 20 Pressure regulator...

Testing Filters Control and Data Acquisition Software PAFWin The test rig control and data acquisition software PAFWin has been developed by Topas engineers. This software controls the whole test stand and records test data. This software runs under Windows3.x/95/NT and is easy to handle. The main parts of the test rig are displayed graphically. When started in an administrator mode the test rig can be operated manually using mouse clicks. Further main features are: Automatic test procedures in accordance with issued standards Օ Manual control for service, calibration procedures and research...

Spcifications Spcifications Air flow Face velocities Diff. pressure Cross section Sensors Tank pressure Blow time Optical particle counter Test aerosols 2...64 m3/h ±2% 0.05...1 m/s 0...1250 Pa ±2% 176 cm2 (0150 mm) Temperature, relative humidity 0.2...0.6 Mpa 50..150 ms LAP 321, Topas 0.3...20 |jm (<105 Particles/cm3) Dusts: AC fine, AC coarse, soot, calcite, lime stone, ... Droplets: DEHS, DOP; paraffin, Emery 3004 Salt aerosols PSL aerosols 3 x 230 VAC, 16 A 2800 x 800 x 1500 mm approx. 120 kg PAFWin Window of the Grade Efficiency Dust Loading Test According to EN 779 (Air Filters) Power supply...