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PLM Kit
Professional Lambda Meter
The MoTeC Professional Lambda Meter (PLM) is intended for the Professional tuner who may wish to use his meter in a racing environment. The Professional Lambda Meter offers no gimmicks or hype. Race engines are tuned to the apex of performance and Professional tuners agree that accuracy and rugged design are the key to success. The Professional Lambda Meter from MoTeC was designed to be as accurate as the laboratory grade Horriba meters used by major race engine manufacturers. Proper control circuitry is essential and the Professional Lambda Meter is the only hand held lambda meter on the market which is manufactured to ISO 9001 specs which is why companies such as Toyota Racing Development and Mercury Marine rely on the Professional Lambda Meter from MoTeC to help tune their engines. If you are a professional tuner, this is the meter for you.
The Backlit LCD features easy to read ½ inch tall numbers and is completely configurable with a PC, a standard RS-232 serial cable and MoTeC software. It is capable of interpreting and displaying Air Fuel Ratio’s between 10.3:1 and 470:1(gasoline), .7 to 32 Lambda or 0% to 22% Oxygen. The software, which comes with the PLM contains configuration tables to read Air/Fuel ratios on Gasoline, Diesel, Natural Gas and Methanol and allows the user to develop additional tables to suit other fuels. The PLM has an accuracy of +/- 1.5% depending on the type of Oxygen sensor that is used. The display rate is programmable and can provide up to 10 updates per second. The filtering of the value displayed is also adjustable.
Additionally the PLM is capable of communicating over a CAN (Controller Area Network) Bus which is a high-speed serial bus common in today’s data acquisition and engine management systems. The PLM can instantly output the sensor signal changes as often as 50 times per second which is the exact rate at which the sensor is able to change itself. The PLM contains a fully programmable 0 to 5 volt analog output, which could be used as an input for a data acquisition system on an engine dynamometer or on a race vehicle. This would allow a non-Lambda capable system to display and record the air fuel ratio during the race. Multiple PLMs (up to 12) can be connected together in several ways, to form a multi-cylinder Air/Fuel Analyzer, which would allow individual cylinder Air/Fuel ratios to be monitored.
The PLM is encased in an attractive aluminum housing, which is approximately 4.125 by 1.625 by 1 inch and weighs just 135 grams. There are two 5mm by .8 pitch mounting studs affixed to the meter and it requires a supply voltage of 7 to 16 volts DC.
