In practice, the aerosols to be measured often have to be rendered measurable in terms of particle concentration by dilution.

The ejector principle is the classic among the dilution systems and is described in VDI 3491-15. It is particularly characterized by the combination (cascading) of the individual dilution steps, whereby dilution factors of 10, 100, 1,000, 100,000 and 1,000,000 can be set.

Depending on the model variants, the dilution steps can be configured for isothermal dilution of hot aerosols up to 200°C. Models made of stainless steel can be configured pressure-resistant up to 10 bar overpressure and are used successfully worldwide for measuring chemically aggressive aerosols.

The "partial flow dilution system" VDD is recommended for diluting large droplets (approx. > 5 µm).

The Palas® dilution systems are built to be robust, simple to operate and provide a clearly defined dilution factor. The dilution factors can be checked by the users themselves on-site

Differences in the dilution systems

  DC 10000
DC 10000 freigestellt.png
KHG 10
KHG 2010
PMPD 100
PMPD-100_horizontal_freigestellt.jpg
VKL 10
VKL 10
VKL 100
VKL 100
Power supply 115 – 230 V, 50 – 60 Hz 115 - 230 V, 50 - 60 Hz 115 - 230 V, 50 - 60 Hz - -
Dimensions Approx. 500 • 230 • 150 mm (H • W • D) - - 100 • 245 • 100 mm 100 • 245 • 100 mm
Weight Approx. 10 kg - - About 4.0 kg About 4.0 kg
Dilution factor 1 : 10
1 : 100
1 : 1000
1 : 10000
1 : 10 1 : 100 1 : 10 1 : 100
Maximum particle size < 5 µm < 20 µm (for dusts) < 10 µm < 20 µm (for dusts) < 2 µm (for dusts)
Special features - Heatable till 150 °C, cascadable, chemical resistant evaporation of volatile elements for exhaust emission measurements according to VPR Calibration Procedure AEA/ED 47382/Issue 5 (Volatile Particle Removal Efficiency), chemical resistant, heated to 200 °C Cascadable Cascadable