GMS 141 Gravimetric Sampling System
Heated gravimetric sampling system for reproducible determination of oil content downstream of blow-by oil-mist separators at engine test stands, using flat-sheet or cartridge absolute filters.
Model Overview
| Model | Group | Positioning | Core fit |
|---|---|---|---|
| GMS 141 | Heated gravimetric sampling system | Sampling system for oil-content determination in blow-by gases downstream of oil-mist separators | Engine-test stands, separator benchmarking and oil-aerosol calibration |
Key Features
Reproducible gravimetric oil measurement
The system captures oil carried in blow-by gas on an absolute filter, supporting time-saving and repeatable determination of oil content or concentration.
Heated sampling path
A heatable sample adapter with a maximum temperature of 120 °C helps minimise unintended condensate separation before the collection filter.
Flexible filter formats
The sampling assembly can use flat-sheet filters with a diameter of 110 mm or cartridge filters with a diameter of 65 mm and length of 93 mm.
Stabilisation bypass
An integrated bypass section allows operating conditions to stabilise before the gravimetric sampling period begins.
Automatic test termination
Measurements can stop automatically after a defined time or when the differential pressure across the loaded filter reaches a specified condition.
Test-stand integration
Analogue and digital ports, TCP/IP connectivity and optional flow-rate sensing support integration into engine and separator test systems.
Technical Specifications
| Parameter | Unit | Value / Description |
|---|---|---|
| SAMPLING | ||
| Purpose | — | Aerosol sampling on a heatable filter, maximum 120 °C |
| Maximum aerosol flow | L/min | 300 |
| Filter media | — | Filter sheets Ø 110 mm or cartridge filter Ø 65 mm × 93 mm |
| Compressed-air supply | bar | 6 |
| ELECTRICAL & COMMUNICATION | ||
| Power supply | — | 110–230 V AC; 3 × 200 W; 3 A |
| Communication | — | Analogue and digital ports; PC connection via TCP/IP |
| Sensors | — | Temperature sensors; optional flow-rate sensor |
| CONNECTIONS & PHYSICAL | ||
| Hose connectors | mm | Ø 28 and Ø 32 |
| Compressed-air connector | — | Coupling plug NW 7.5 |
| Dimensions | mm | 520 × 350 × 240 |
| Weight | kg | 14.0 |
Specifications are based on Topas GmbH published product information. Confirm the current configuration, accessories and calibration scope before order placement.
Applications
Blow-by oil-content determination
Gravimetric measurement of oil content in crankcase gases downstream of oil-mist separators at engine test stands.
Oil-mist separator benchmarking
Comparison of separator performance together with pressure-drop and oil-flow measurements.
Aerosol-generator calibration
Reference gravimetric sampling for calibration and verification of oil-aerosol generation and optical monitoring systems.
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