PAP 612 Aerosol Photometer

Process Aerosol Photometer PAP 612 for analysis of particle concentration in aerosols, extinction/scattering light for twi wavelength, best for blow by testing

The Process Photometer PAP 612 is a combined in-line extinction and scattered-light photometer (ES) for blow-by measurements (aerosol concentration determination) with double-running test sections and two wavelengths, which can operate in over- or underpressure.

The device is primarily designed for investigations of crankcase ventilation of combustion engines. Thus it should support the development and testing of filter systems. Due to its compact design, its use is conceivable on test rigs for engines, on swivelling test rigs, under lab conditions as well as for test drives in field use.

download

product sheet PAP 612

Interested?We will gladly advise you

+49 (351) 2166 430

contact form

Benefits

transmission and scattered-light measurements of 2 wavelength with high time resolution
low uncertainty of measurement through two different measuring lengths
compact design for the use at laboratory, engine and tilt test stands and for field use
operation in over- and underpressure
software PAPWin for calibration, configuration and data acquisition

Applications

detection of unwanted fluids in pipe systems for gas transport (e.g. gushes of oil or detection of condensation)
in-line characterisation and concentration monitoring of blow-by aerosols
concentration measurements in aerosols
determination of mean particle sizes of submicron aerosols

Principle

The instrument is based on a dual extinction and scattered-light measurement, which are offset at an angle of 90°. By an alternating circuit of the lighting unit (switching of the LEDs) the two extinctions and the two scattered-light intensities are measured successively. The PAP 612 records measuring signals which are internally evaluated. It can be used with the software PAPWin by a USB interface.

Technical data

Parameter title	Unit	Value
measurand(s)	-	extinction, scattering light
measuring range, concentration	g/m³	min. 2
power supply	-	12 V DC; 100 mA (power supply via USB)
wave length of light source	nm	470 (blue), 630 (red)
hose connector, inlet/outlet	mm	28 (nominal diameter)
weight	kg	1,2

Reference

Sauter H, Mathiak D, Müller J, List S Kurbelgehäuseentlüftung - direkte Messung von Ölaerosolen MTZ - Motorentechnische Zeitschrift 73 (2012) 0, 140-145
dx.doi.org/10.1365/s35146-012-0249-x