Introduction
The Air-Fuel Ratio Combustion Monitor (AFM1040/AFM1540)
The ECM Air-Fuel Ratio Combustion Monitor (AFM) was designed for the professional
calibration of fuel-injection or carburetor systems. Using a state-of-the-art, broadband
lambda (
λ
) sensor, the AFM provides unmatched measurement range, accuracy, and speed-
of-response in a compact, lightweight package. Suitable for dynamometer or in-vehicle
applications, the AFM is an essential tool for any engine development program.
AFM features:
•
Measurement range of 8 to 18 AFR (gasoline
)
•
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 AFM1540
•
Can work with Bosch LSU 4.9, LSU 4.2, or NTK UEGO sensor
(user-selectable only with AFM1540)
•
11 to 28 VDC operation
AFM1040/AFM1540 Components List
The following items are included with an AFM1040 Kit:
Item No.
Description
Part Number
1.
Control Module (AFM1040)
1040A-1
2.
Lambda LSU 4.9 Sensor and
1049E-2a
Sensor Adapter or
1049E-2b
Lambda LSU 4.2 Sensor or
1042A-2
NTK TL UEGO Sensor
1001A-2
3.
Wiring Harness, 6m or
1002A-3a
Wiring Harness, 3m or
1002A-3b
3
Wiring Harness, 1m
1002A-3c
3
4.
Calibration
Screwdriver
2400E-35
5.
Sensor Mounting Boss and Plug (M18X1.5mm)
1000A-5
6.
Instruction
Manual
1040A-6
1
Assumes fuel H:C ratio of 1.85. For other fuels see the “Fuel Type Compensation” section.
2
An AC/DC Power Supply (P/N 1000A-7) is available.
3
ECM offers custom harness solutions. Contact ECM for more information.
1
Summary of Contents for AFM1040
Page 1: ...AFM1040 AFM1540 Air Fuel Ratio Combustion Monitor Instruction Manual 02 06 Part Number 1040A 6...
Page 4: ...Supplementary Information 17 ii...
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Page 25: ...State Diagram for SMB Communication 21...
Page 26: ...22...
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Page 30: ...Los Altos CA 94023 0040 USA 408 734 3433 Fax 408 734 3432 www ecm co com...