PAP 612 Process Aerosol Photometer
Combined in-line extinction and 90° scattered-light photometer with two wavelengths and two measuring lengths for high-concentration blow-by aerosols and liquid-carryover detection.
Model Overview
| Model | Group | Positioning | Core fit |
|---|---|---|---|
| PAP 612 | Combined extinction/scattered-light photometer | Dual-wavelength, dual-length in-line measurement for concentrated blow-by aerosols. | Crankcase ventilation, gush-oil detection, condensation detection and field or tilt-test operation. |
Key Features
Four optical signals
Alternating illumination records two extinction values and two 90° scattered-light intensities at high time resolution.
Two measuring lengths
Dual optical path lengths reduce measurement uncertainty across concentrated aerosol conditions.
Pressure-capable in-line operation
The compact measuring tube can operate under overpressure or underpressure in engine, laboratory and field setups.
PAPWin integration
USB-connected PAPWin software supports calibration, configuration and data acquisition.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| MEASUREMENT | ||
| Measurands | — | Extinction and 90° scattered light |
| Concentration range | g/m³ | From 2 |
| Light-source wavelengths | nm | 470 blue and 630 red |
| Optical arrangement | — | Two measuring lengths with dual-wavelength extinction and scattered-light detection |
| PROCESS CONNECTION | ||
| Inlet/outlet hose connection | mm | 28 nominal diameter |
| Operating pressure | — | Suitable for overpressure and underpressure operation |
| POWER AND SOFTWARE | ||
| Power supply | — | 12 V DC, 100 mA via USB |
| Interface/software | — | USB with PAPWin for calibration, configuration and data acquisition |
| PHYSICAL | ||
| Weight | kg | 1.2 |
Manufacturer-published values are shown for model selection. Confirm the current configuration, accessories and calibration scope before ordering.
Applications
Blow-by aerosol monitoring
Characterise concentrated aerosols in crankcase-ventilation systems during engine and separator development.
Gush-oil and wall-film detection
Detect unwanted oil, wall films or condensation in gas-transport pipe systems.
Engine and tilt-rig measurements
Use the compact pressure-capable measurement tube in laboratory, engine and swivelling test rigs.
Concentration and mean-size assessment
Combine extinction and scattered-light signals to investigate concentrated and submicron aerosols.
