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Innovate MotorSports LM-1 Basic Kit with LMA-2 RPM Converter
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Tuning an engine for maximum power previously required long trial-and-error sessions on a dynamometer. With the LM-1, precise AFR measurement allows the user to correctly adjust many variables- including carburetor jetting, fuel injection, turbo fuel curves, etc.- without long and expensive dyno sessions. The meter’s digital signal processing technology provides data on exactly how rich or lean an engine is running at any load. The LM-1’s self-calibrating circuitry also compensates for changes in temperature, altitude, and sensor condition.
The instrument can sample and store the air-fuel-ratio and the other sensor data internally in operation for later analysis on a personal computer. At a sampling rate of 12 samples/second the instrument can store up to 44 minutes worth of data in non-volatile memory. The data can be downloaded to a personal computer using a standard serial port and viewed/analyzed by the included software or any standard spreadsheet program:
Added Functionality with the LMA-2 RPM Converter
The LMA-2 expands the LM-1 aux. input connector to 6 wire terminals (5 auxiliary inputs & 1 ground).
The LM-1 Aux Input Cable #2 (LMA-2 RPM-converter) is an auxiliary device for the LM-1 Lambda Meter. The Aux Input Cable allows the connection of up to 5 analog inputs for data logging to the LM-1. The RPM converter converts RPM pulses from various sources to an analog 0-5V voltage and allows the connection of up to 4 additional analog inputs for data logging to the LM-1. For details on the analog signal inputs see chapter 7 of the LMA2 Manual located here.
The RPM-converter can either be used with an inductive clamp (similar to an ignition timing light clamp) or with a pulsed RPM signal from other sources (like tach output signals from ECU's or electronic ignition systems).
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