SEMTECH FEM0 pages

Emissions
Measurement
Solutions

sensors

SEMTECH - FEM
®

FUEL ECONOMY METER - A SEMTECH® ECOSTAR Product

On Board
Emissions
Analyzers

Test Cell
Emissions
Analyzers

The SEMTECH®-FEM is an all-new fuel economy meter with unsurpassed accuracy and
ease of use. This patent pending design combines our high speed, high performance,
exhaust flow meter with a CO/CO2 gas analyzer, packaged into an integrated system,
providing accurate, real-time fuel economy measurements using the carbon balance
method.
Emissions
Testing
Services

Sample handling is integrated into the system, with an internal sample probe, heated
filter, water trap, and Nafion dryer. The dried and filtered sample then passes through a
non-dispersive infra-red analyzer for measurement of CO, CO2 and HC as hexane. An
electrochemical oxygen sensor, or an optional paramagnetic oxygen sensor, completes
the gas analysis.
The system is easily controlled through an intuitive graphical touch screen on the
electronics module, or through the host software. Gas concentrations and exhaust flow
can be monitored live, along with exhaust pressure and temperature.

Environmental
Applications

Rev. 20140611

The system accommodates standard flow tube sizes from 1 in. (25 mm) through 6 in. (152
mm) diameters, and is also scalable, enabling custom sizes upon request. The module can
operate as a stand-alone analyzer, or as part of the SEMTECH® ECOSTAR mobile test
system.
The SEMTECH®-FEM is compliant with UN-ECE. R-49 and Commission Regulation (EU)
No. 582-2011 and US-EPA 40CFR part 1065 for the gases regulated under these rules.