
1
Introduction
The Fuel-Air Ratio Monitor
The ECM Fuel-Air Ratio Monitor (F/A Monitor) was designed for the professional
calibration of fuel-injection or carburetor systems. Using a wide-range UEGO (Universal
Exhaust Gas Oxygen) sensor, the F/A Monitor provides unmatched measurement range,
accuracy, and speed-of-response in a compact, lightweight package. Suitable for
dynamometer or in-vehicle applications, the F/A Monitor is an essential tool for any engine
development program.
F/A Monitor features:
•
Measurement range of 0.055 to 0.125 F/A (gasoline
1
)
•
Easy calibration in air
•
0 to 5 volt linearized output for use with data acquisition or engine control
systems
•
SMB (Serial Measurement Bus) Interface on F/A1500
•
Simulated O
2
sensor output
•
11 to 28 VDC operation
2
F/A Monitor Components List
The following items are included with an F/A1000 or F/A1500 Kit:
Item No.
Description
Part Number
1.
Control Module (F/A1000)
1001A-1
Control Module (F/A1500)
1501A-1
2.
UEGO Sensor
1001A-2
3.
Wiring Harness, 20’ or
1001A-3a
3
Wiring Harness, 10’ or
1001A-3b
3
Wiring Harness, 3’
1001A-3c
3
4.
SMB/PC Cable, 6’ (F/A1500)
1500A-16
5.
SMB/PWR Cable, 1’ (F/A1500)
1500A-17
6.
Calibration Screwdriver
2400E-35
7.
Sensor Mounting Boss and Plug (M18X1.5mm)
1000A-5
8.
Instruction Manual
1001A-6
1
Assumes fuel H:C ratio of 1.85. For other fuels, see “Fuel Type Compensation”.
2
An AC/DC Power Supply (P/N 1000A-7) is available.
3
ECM offers custom harness solutions. Contact ECM for more information.
Summary of Contents for F/A1000
Page 1: ...F A1000 F A1500 Fuel Air Ratio Monitor Instruction Manual 02 06 Part Number 1001A 6...
Page 4: ...ii Supplementary Information 15...
Page 19: ...15...
Page 20: ...16...
Page 21: ...17...
Page 22: ...18...
Page 23: ...19 State Diagram for SMB Communication...
Page 24: ...20...
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Page 26: ...Los Altos CA 94023 0040 USA 408 734 3433 Fax 408 734 3432 www ecm co com...