MFP 4000 with two Promo® aerosol spectrometers for simultaneous determination of fraction separation efficiency
Benefits
Description
Application
Benefits
Simultaneous particle measurement in the raw gas and clean gas
Particle size measurements from 0.2 – 40 µm
Measurement of Cn max= 106 particles/cm3 without dilution
Internationally comparable measurement results
Widespread distribution of the measurement system
High reproducibility of the testing method
Easy use of different test aerosols, e.g. SAE Fine and Coarse, NaCl/KCl, DEHS
Highest raw gas concentrations of up to > 1000 mg/m3 (ISO Fine) or > 5000 mg/m3 (ISO Coarse) with measurement of the fraction separation efficiency for burden tests
Flexible filter test software FTControl
Sequence programs for pressure loss measurements, measurements of fraction separation efficiency and burden measurements
Easy to operate, even untrained personnel can be instructed quickly in the use of the equipment
Short set-up times
Cleaning and calibration can be performed autonomously by the customer
Easy use of the measurement technology components – even in other applications
Mobile setup, easy to move on castors
Reliable operation
Validation of the clear function of individual components and
the overall system during pre-delivery acceptance testing and upon
delivery
Low-maintenance
The unit will reduce your operating costs
Description
MFP filter test rigs from Palas® have already proved
themselves many times over all around the world in practical
applications in development and quality control.
The MFP filter test rig is a modular filter testing system for flat filter media and small mini-filters.
This enables you to determine the
pressure loss curve on the medium without a dust coating,
fraction separation efficiency, or
burden and fraction separation efficiency during application of the burden
and the gravimetric separation efficiency
within shortest times – reliably and therefore cost-effectively.
The MFP 4000 operates in suction mode. This ensures a particularly
uniform formation of the dust cake even at high inflow speeds.
With the new FTControl test rig software of the MFP 4000, the aerosol spectrometer Promo® 1000/2000 is used for clear and reliable determination of the aerosol concentration and particle size and therefore clear determination of the fraction separation efficiency.The use of one aerosol spectrometer Promo® 1000/2000 in raw gas and one in clean gas within simultaneous operation offers the following advantages:
Fully-automatic simultaneous measurement of fraction separation efficiency
Faster determination of the beginning fraction separation efficiency because of bisection of the testing time for the fraction seperation efficiency.
Higher temporal resolution for the measurement of fraction seperation efficiency during loading.
Using the testing system for very high and very low aerosol concentrations.
The largely automated setup of the test sequence in conjunction
with the clearly defined individual components and the individually
adjustable sequence programs of the filter test software FTControl
combine to deliver the high reliability of our measurement results.
Our quality in detail
Fig. 2: MFP 4000 (old image)
1. Variable aerosol generation Thanks to the
use of different dispersers for dusts, 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. Light scattering spectrometer Promo® 1000/2000 for clear particle measurements in high concentrations of up to 5000 mg/m3 (SAE Fine) and low concentrations for the determination of the initial fraction separation efficiency
4. Mobile pneumatic filter holder for fast removal and loading of the test rig.
5. Gravimetric filter holder for simple and fast evaluation of the gravimetric separation efficiency.
6. Raw gas sensor
7. Clean gas sensor
Automation
The MFP 4000 has an integrated mass flow controller that it uses to
control the volume flow. The volume flow rates are automatically
monitored and controlled by the FTControl filter test software. The data
from the integrated sensors – such as the volume flow, temperature,
relative humidity and differential pressure at the filter – are also
recorded automatically during the filter test.
Measurement of the fraction separation efficiency
Fig. 3: Example: Comparison of fraction separation efficiencies
Fully-automated measurement of the fraction separation efficiency
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
Highest measurement reproducibility and repeatability highlight even fine differences in the separation efficiency
Short measurement times of around 2 minutes per separation efficiency measurement thanks to optimized aerosol application
Simple comparison of separation efficiency curves, calculation of mean values also possible
Sampling and layout
The vertical layout allows even large particles (up to 40 µm) to
make their way onto the filter medium. On the raw and clean gas side,
isokinetic sampling probes are provided for the raw and clean gas
sensor.
Burden / hold time measurement and record of the pressure loss curve
Fig. 4: 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
Pre-selectable burden application steps in relation to pressure loss or time
Gravimetric determination of the separation efficiency
Determination and representation of the pressure loss curve and
retention curve in 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 aerosol concentration
Application
For filter media and small filter elements
product development/ during production monitoring.
Testing based on ISO 11155-1 / DIN 71460-1 (cabin air
filters)
Testing based on ISO 5011 (engine pre-air filters)
Testing based on ISO 16890 (room air
filters)
Other standards in
various versions.
To enquire about the MFP 4000 MFP system and the options available contact us now.
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