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Summary of Contents for ECM afm1000
- Page 1 ™ AFM1000 Air-Fuel Ratio Combustion Monitor Instruction Manual 7/02 Part Number 1000A-6...
- Page 2 No part of this manual may be photocopied or reproduced in any form without prior written consent from ECM: ENGINE CONTROL AND MONITORING. Information and specifications subject to change without notice. AFM1000 is a trademark of ECM: ENGINE CONTROL AND MONITORING. Printed in the United States of America.
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Page 3: Table Of Contents
Table of Contents Introduction The Air-Fuel Ratio Combustion Monitor (AFM1000) AFM1000 Components List Important Operation Notes How to Use Hooking-up the AFM1000 Power Warm-up Analog Output Calibration Fuel Type Compensation Pressure Compensation Specifications and Limits Measurement Range and Accuracy Exhaust Operating Limits... -
Page 5: Introduction
UEGO (Universal Exhaust Gas Oxygen) sensor, the AFM1000 provides unmatched measurement range, accuracy, and speed-of-response in a compact, lightweight package. Suitable for dynamometer or in-vehicle applications, the AFM1000 is an essential tool for any engine development program. AFM1000 features: •... -
Page 6: Important Operation Notes
Important Operation Notes 1. Before installing the UEGO sensor, apply a small amount of non-lead containing antiseize compound to its threads. Do not get the compound on the sensor's tip. 2. Do not operate an engine for more than three minutes with the UEGO sensor in the exhaust and the control module’s power off. -
Page 7: How To Use
How to Use Hooking-up the AFM1000 Location of the UEGO Sensor The UEGO sensor should be located approximately 12" from the exhaust valve(s) of the engine. A location further from the engine may be used as long as it is at least ten times the exhaust pipe diameter upstream of the end of the exhaust system. -
Page 8: Power
Water can thermally shock the UEGO sensor. Analog Output The AFM1000 has a 0V to 5V linearized output suitable for input into a data acquisition or engine control system. The relationship between the analog output (Vout) and the AFR for gasoline AFR = 2.0 x Vout + 8.0 (for gasoline only) -
Page 9: Fuel Type Compensation
CAL LED is off then the sensor is bad. Fuel Type Compensation The AFM1000 assumes a fuel H:C ratio of 1.85 and an O:C ratio of zero. If a fuel of a different composition (H:C=m, O:C=p) is used, Equation 2 can be used to compensate (i.e. - Page 10 C = 0.000627 for AFR < 14.57 (rich). C = 0.000830 for AFR ≥ 14.57 (lean). P = the exhaust pressure in mmHg above the pressure at which the sensor was calibrated (using the CAL POT on the AFM1000 while the sensor is held in air).
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Page 11: Specifications And Limits
Specifications and Limits Measurement Range and Accuracy • Range: 8 to 18 AFR (gasoline) • Accuracy: 1.5% Exhaust Operating Limits Maximum Exhaust Gas Temperature: 950 deg. C, 1742 deg. F. Exhaust Gas Pressure Range: 0.8 - 1.3 atm. Sensor Installation Thread Size: M18X1.5mm. -
Page 12: Troubleshooting
3. The AFM1000 must be returned to the factory for repair. There are no user- repairable components inside the control module. The warranty is void if the control module is opened or wiring harness is modified. -
Page 13: Safety Warnings
Never work on a running engine. When installing the AFM1000's cabling and sensor on a stopped engine, it is best to think- out your moves before you make them. Route and cable-tie all cables away from hot, moving, sharp, high energy (spark), and caustic objects. -
Page 14: Warranty And Disclaimers
Warranty and Disclaimers WARRANTY The products described in this manual, with the exception of the UEGO sensor, are warranted to be free from defects in material and workmanship for a period of 365 days from the date of shipment to the buyer. Within the 365 day warranty period, we shall at our option replace such items or reimburse the customer the original price of such items which are returned to us with shipping charges prepaid and which are determined by us to be defective. - Page 16 Los Altos, CA 94023-0040 • USA • (408) 734-3433 • Fax: (408) 734-3432...