SEMTECH LAMBDAMASTER0 pages
semtech
LAMBDAMASTER
®
SEMTECH LAMBDAMASTER
®
ON-BOARD, IN-USE AIR FUEL RATIO ANALYZER
ON-BOARD, IN-USE AIR FUEL RATIO ANALYZER
Product Specifications:
MEASUREMENTS RANGE
7-100 AFR
ACCURACY
± 0.04% volume of O2
STABILITY
Better than ± 0.02% volume O2 over 2 hour measurement period
RESOLUTION
± 0.01% volume O2
REPEATABILITY
Better than ± 0.02% volume O2. Typically equivalent to better than ±
0.05 AFR, ± 0.003λ (Over range 7-100 AFR)
RESPONSE RISE TIME
Air to Nitrogen; 90% change in less than 100 milliseconds.
EXHAUST SAMPLE FLOW
Approximately 5 liters per minute
WARM UP TIME
60 minutes
TYPICAL CATALYST LIFE
500 hours unleaded fuel, 50 hours leaded fuel
OPERATING TEMPERATURE
0 to 50ºC
RECORDER OUTPUTS (STANDARD)
0 to 1V : 0 to full scale for λ/AFR/O2 ; 0 to 1V : 0 to 10% O2
HC RATIO ADJUSTMENT RANGE
0.00 to 4.00
OC RATIO ADJUSTMENT RANGE
0.00 to 1.00
HEATED SAMPLE LINES
3 meters length standard, 1, 5, 8 or 10 meters options directly
interchangeable
CONNECTING CABLE - CONTROL UNIT TO
SAMPLE HANDLING UNIT
17 way x 6 meter long. 1 to 25 meters; Optional
SAMPLE FILTER
19 mm x 90 mm Whatman extraction thimble
ELECTRICAL POWER REQUIREMENTS
Electronics Module: <200W + 12V DC Cart: 1KW
DIMENSIONS (IN; W x H x D)
Control Unit : 10.5 x 6.5 x 3.5
Transducer : 13.5 x 3.0 x 3.0
WEIGHT
Control Unit : 6.50 lbs
Transducer : 4.25 lbs
The semtech lambdamaster has been redesigned to meet the
needs of automotive engineers through the next decade, understanding that
very fast (less than 100ms) monitoring of air fuel ratio values is critical in the
engine design process.
The lambdamaster offers both compactness and pure simplicity of
operation which is achieved by the integration of a state-of-the-art transducer
that remains with a sophisticated electronic host. The unique transducer
design incorporates three sensors for oxygen, pressure and temperature,
measurement, together with sonic jeweled orifices and filters. The only
connections to the sensor are the vacuum source, and the power and signal
cables. Because of the very fast response requirements, the transducer
operates under vacuum and with exceptionally low dead volume. The
sample flow is nominally 500ccs/min and the speed of response is less than
100ms. Access to the sample filter is quick and simple and involves no major
disassembly of the transducer. User maintenance is only limited to the
routine changes of the filter and periodic cleaning of the sample and bypass
orifices.
The Lambdamaster electronics have been redesigned to take
advantage of the latest advances in electronic component and design, further
reducing size and power requirements, while enhancing the system’s ability
to control, monitor and interact with the transducer, and to calculate oxygen
equivalence ratio and air fuel ratio values. The values of oxygen, pressure
and temperature are updated every 4ms, with each update being an average
of ten readings. The electronics control power to the transducer heater,
maintaining a temperature of 710ºC . The new electronics offer several
communications options, including DAC output, serial/CAN, and RS232.
Note: Specifications are subject to change without notice. While due caution has been exercised in the production of this
document, errors and omissions can occur.
The system operates in a wide variety of automotive applications, i.e. a cold
start testing engine cylinder development, etc.
Last Revision 09/08
Sensors, Inc. ▫ 6812 State Road ▫ Saline, Michigan ▫ USA ▫ +1 (734) 429 – 2100 ▫ www.sensors-inc.com
Sensors Europe GmbH ▫ Feldheider Str. 60 ▫ 40699 Erkrath ▫ Germany ▫ +49-(0)2104-14188-88
Sensors, Inc. ▫ 6812 State Road ▫ Saline, Michigan ▫ USA ▫ +1 (734) 429 – 2100 ▫ www.sensors-inc.com
Sensors Europe GmbH ▫ Feldheider Str. 60 ▫ 40699 Erkrath ▫ Germany ▫ +49-(0)2104-14188-88