The Dust Disperser SAG 440 has been especially developed to meet the requirements as defined by the guidelines ASHRAE 52.2 and DIN 16890-3, EN 779 for testing the performance of particulate air filters.
Standards
ISO 16890-3
ASHRAE 52.2
EN 779
Due to the particular physical properties of ASHRAE test dust the instrument was adapted to this material. The dust feeder SAG 440 is particularly suited for feeding / dosing dusts containing a certain proportion of fibres and provides excellent results when producing test dust to check separation efficiencies.
Benefits
- constant and reproducible dosing rate over a wide concentration range makes it suitable for several applications
- refillable during operation – ideal for long term tests
- optional remote control unit for manual or computer control
Applications
- ideal for testing the separation efficiencies of filters
- aerosol preparation for the determination of the filter dust holding capacity according to ISO 16890-3, EN 779, ASHRAE 52.2
- evaluation and calibration of dust samplers and monitors
| Parameter title | Unit | Value |
|---|---|---|
| setting parameter 1 | - | dispersion pressure |
| setting range 1 | bar | 1 ... 6 (dispersion pressure) |
| setting resolution 1 | - | continously adjustable |
| setting parameter 2 | - | belt velocity |
| setting range 2 | mm/min | 0,3 ... 30 |
| setting resolution 2 | mm/min | 0,1 |
| setting parameter 3 | - | relative rotational frequency of paddle wheel |
| setting range 3 | % | 0 ... 100 (relative rotational frequency of paddle wheel) |
| setting resolution 3 | continously adjustable | |
| aerosol, mass flow rate (aerosol substance) | g/h | 4 ... 350 (for ASHRAE 52.2 Test dust) |
| aerosol, volumetric flow rate | L/h | 1500 ... 8000 |
| operating medium, aerosol substance | - | ASHRAE 52.2 test dust and other - in particular fibre containing - test dusts (e.g., DMT dust type 8) |
| operating medium, aerosol substance - filling volume | mL | < 250 |
| operating medium, gas/air | - | dry, particle-free compressed air or technical inert gas |
| operating medium, gas/air - compressed air supply | bar | 0,5 ... 6,0 |
| power supply | - | 100 ... 240 VAC, 50 ... 60 Hz, 2 x 4A fuse |
| connector, compressed air | - | compressed air coupling NW 7.2 |
| dimensions (w × h × d) | mm | 290 × 400 × 1150 (generator); 300 × 185 × 130 (control unit) |
| weight | kg | 33,5 |
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