Quality control and development of flat media starting at 200 nm

Fig. 1: MFP 2000

1. Variable aerosol generation Thanks to the use of different dispersers for dust, KCl/NaCl, DEHS, etc.; shortened measurement times are possible e.g., through increased dust concentration

2. Corona discharge (optional): Adjustable ion stream for different mass flows. Mixed air, adjustable for inflow speeds from 0.05 to 1 m/s. Optional: Transient inflow.

3. Mobile pneumatic filter holder for fast removal and loading of the test rig.

4. Light scattering spectrometer Promo^® system for clear particle measurements in high concentrations of up to 1000 mg/m³ (SAE Fine) with integrated Windows test rig software.

5. Easy to operate even for untrained personnel, thanks to the automated sequence programs for the performance of filter testing. The test rig can be controlled fully automatically.

The MFP 2000 has integrated mass flow controllers that it uses to control the volume flow; these can be automatically monitored and controlled via the FTControl filter test software. The integrated sensor data, such as the filter's volume flow and differential pressure, are also recorded automatically during the filter test.

Fig. 2: Example: Comparison of fraction separation efficiencies

• Clear demonstration of the separation efficiency of your filter medium throughout the entire measurement range from 0.2 to 40 µm with the Promo^® system
• With its maximum sensitivity, particle measurement technology can highlight even fine differences in separation efficiency.
• Short measurement times of around 2 minutes per separation efficiency measurement thanks to an optimized aerosol application
• Simple comparison of separation efficiency curves, and calculation of mean values are also possible

The strictly vertical layout of the MFP 2000 test system with just one sampling probe delivers clear measurements even for larger particles of up to 40 µm, as sedimentation losses can be ruled out. This enables reliable determination of the separation efficiency across the entire measurement range for all particle sizes.

Fig. 3: Example: Hold time measurement

• Performance of measurements of the fraction separation efficiency during dust application; pressure loss or measurement time can be pre-selected as the abort criterion
• Determination and representation of the pressure loss curve and retention curve in a diagram and table form The representation of the particle diameters at 80% and 95% separation efficiency provides additional information.
• Comparison of the fraction separation efficiencies during the different burdening steps
• Shortening of the measurement times, e.g., through increased dust concentration

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Extensions/Accessories

Aerosol generation
Thanks to the modular design, various test aerosols can be generated, depending on the aerosol generator used: DEHS, oils, kerosene oil, NaCl or KCl, and test dust such as ISO A2 Fine.

• RBG 1000
• AGK 2000 with drying length
• PLG 1000

Aerosol discharge
Depending on the application, the aerosol is discharged via the electrical corona discharge CD 2000 or the X-ray source XRC 049, which is not subject to approval.