In practice, the aerosols to be measured very often have to be made measurable for the particle measurement devices with regard to the 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 (cascadability) of the individual dilution levels, which means that dilution factors of 10, 100, 1,000, 100,000 and 1,000,000 can be set reliably.

Depending on the model variant, the dilution levels for isothermal dilution of hot aerosols can be heated up to 200 °C. Stainless steel models can be designed pressure-resistant up to 10 bar overpressure and are used worldwide with great success for the measurement of chemically aggressive aerosols.

The Palas® dilution systems are robust, easy to use and provide a clearly defined dilution factor. The dilution factors can be checked by the user on site.

Differences between 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

approx. 4 kg

approx. 4 kg
Dilution factor

1 : 10
1 : 100
1 : 1,000
1 : 10,000
1 : 10 1 : 100 1 : 10 1 : 100
Maximum particle size < 5 µm < 20 µm (für Stäube)

< 10 µm
< 20 µm (for dusts) < 2 µm (for dusts)
Special features
Heatable until 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
Volume flow (suction flow) 2 – 5 l/min 2 – 5 l/min 2 – 5 l/min 2 – 5 l/min 0.15 - 0.5 l/min
Compressed air supply 4 – 8 bar 4 – 8 bar 4 – 8 bar 4 – 8 bar

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