/ 179 BENEFITS AT A GLANCE • High measurement resolution ��0.001 FSN or 10 ��g/m���� and low detection limit ��0.002 FSN or 20 ��g/m���� • Timely paper change due to remaining fi lter paper indicator • Altitude measurements up to 5,000 m a��ove sea level and altitude simulation up to 5,000 m �� High reproduci��ility, improved cleaning effi ciency and increased robustness against wet exhaust gas due to shop air purging of the gas path – optional • Extended application range up to three bars exhaust back pressure for engines with exhaust aftertreatment systems – optional �� Remote-control service with intuitive user interface – optional SMOKE MEASUREMENT WITH FILTER PAPER METHOD AVL Smoke Meter The AVL Smoke Meter is a fi lter-type smoke meter for measuring the soot content in the e��haust of diesel and ����I ��gasoline direct injection�� engines. The device has become the proven and tested standard in the automotive industry. The variable sampling volume and thermal e��haust conditioning ensure a wide range of applications, from combustion optimization at prototype engines to production monitoring. MEASUREMENT PRINCIPLE A defi ned �� ow rate is sampled from the engine��s e��haust pipe through a clean fi lter paper in the instrument. The fi ltered soot causes ��lackening on the fi lter paper which is detected ��y a photoelectric measuring head and evaluated in the microprocessor to calculate the result in FSN and mg/m��. The e��tremely high reproduci��ility of the AVL Smoke Meter is guaranteed by its variable sampling volume method and thermal heating. The sampling volume can ��e set automatically depending on the exhaust soot concentration. This enables measuring low soot levels of modern CI engines. APPLICATION Due to the easy installation and variable sampling volume, the AVL Smoke Meter can be used on engine testbeds as well as on chassis dynamometers. The smoke measurement comprises the whole range from modern diesel engines with aftertreatment systems to GDI engines. The many possi��le applications make it a perfect all-round system. The standardized measurement values can be compared all over the world, offering an additional ��enefi t to glo��ally operating companies. Thanks to the high repeatability, the system can also be used for testing at the end of the production line, ena��ling the detection of very small tolerance deviations. The measuring principle of the Smoke Meter makes it highly versatile. The variable sampling volume allows measurements on any generation of large engine or car engine, independent of the soot content in the exhaust. Effective length Sample volume Dead volume Filter area Effective length = Sample volume – Dead volume – Leak volume Filter area
Solutionskatalog_2017_E
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