Conventional analyzers
The Flame Ionisation Detector (FID) is the industry-standard method of measuring engine exhaust hydrocarbons. Conventional FIDs have response times of 1-2 seconds, and are typically used to measure "bag emissions" where the concentration changes very slowly.
A need for fast emissions analyzers
During the 1-2 seconds it takes a conventional FID to respond, an engine will undergo many firing cycles. The conditions inside the combustion chamber can vary significantly between successive firing cycles- particularly when the engine conditions are changing rapidly such as during engine start or speed/load transients. The Cambustion HFR500 has a time response as low as 0.7ms T10-90. This allows the HFR500 to distinguish between two adjacent firing cycles, and even offer information about the variation in HC concentration during a single exhaust stroke.
Benefits of fast emissions analyzers
Accurate measurement of exhaust emissions brings valuable insights into engine operation, and assists calibration engineers in reducing the engine out emissions. This can assist in emissions compliance while reducing after-treatment costs.
The fast FID is carefully designed and calibrated to be linear to well above misfire HC levels (e.g. 42,000 ppm C3 for a complete stoichiometric misfire in a gasoline engine) so that accurate concentrations during these important events can be recorded.
This ability to record HC emissions data on such a fast time scale has opened up a wide range of study areas. (See Applications & Sample data.)
The brochure may be downloaded here.
Please contact Cambustion for more information and prices.