The DDS 560/C is an aerosol conditioning system that serves for free-adjustable and defined reduction of the particle number concentrations. Moreover, the dilution system can be passively operated by various aerosol sample flow rates.
Standards
VDI 3491-15
VDI 3491-6
Aerosol conditioning by dilution is one basic measure for analyses of aerosols. For example, numerous aerosol-analytical instruments are limited to specific concentration levels. Too high concentrations can cause a false estimate of aerosol characteristics due to the re-entrainment of deposited particles, coincidence effects within optical particle counters or insufficient bipolar neutralisation during differential mobility analyses.
Benefits
- free adjustable dilution factor over wide range (approx. one decade)
- compatible with various aerosol-analytical instruments (i.e., variable flow rate)
- automatic readjustment of setting value of dilution
- stand-alone or remote-controlled operation with parameter monitoring
Applications
- calibration of aerosol-analytical instruments
- indoor aerosol analyses
- occupational safety measurements
- fundamental research
Accessories
- antistatic hose (7,9 mm)
- HEPA fitler
| Parameter title | Unit | Value |
|---|---|---|
| setting parameter | - | dilution factor |
| setting range (depending on flow rate) | - | 5 ... 200 (@ 0,5 L/min); 10 ... 370 (@ 1,0 L/min); 30 ... 190 (@ 3,0 L/min) |
| setting resolution | - | stepwise by 1 or 10 |
| volumetric flow rate, inlet | L/min | 0,5 ... 3,0 (continously variable) |
| power supply | - | 24 V DC (power adapter) |
| operating medium | - | air (others on request) |
| communication interface | - | RS232 (M9 IP67, 5 pole) |
| user interface | - | touch screen |
| set up time | s | max. 10 |
| power consumption | W | max. 25 |
| noise emission | dB(A) | not relevant |
| hose connector | mm | Ø 8 (outer diameter) |
| dimensions (w × h × d) | mm | 140 × 285 × 200 |
| weight | kg | 3,3 |
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