Tuning Tip - When to Perform a Heater Calibration

Released on = September 21, 2006, 3:59 pm

Press Release Author = John Cecil

Industry = Automotive

Press Release Summary = The LM-1 has two calibrations- one for the sensor heater and
one for free air.

Press Release Body = The LM-1 has two calibrations- one for the sensor heater and
one for free air. In general, it's only necessary to calibrate the sensor heater the
first time you use a new sensor, while the free air calibration is required more
frequently. Free air calibration will correct for: 1) A change in atmospheric
pressure (i.e. going from sea level to 6,000 ft. above for a race); or 2) Sensor
wear (i.e. regular use for hundreds of hours).

Heater calibration detects and stores the impedance characteristics of a new sensor.
Generally these characteristics don't change with wear, however some forms of
carbonization can impact the impedance of the sensor. The most common problematic
carbonization comes from the use of leaded gas. If you see an error #4 (Pump cell
circuit open) after using the LM-1 with leaded gas, you probably need to perform a
heater recalibration. If you use LM-1 regularly with race gas, we recommend keeping
a backup sensor in your tool box, and performing heater recalibrations more
frequently.

To clear the heater calibration data, simply connect the LM-1 to 12V and power it on
for 10 seconds without the sensor connected. Then turn it off, connect the sensor
and power up again. The LM-1 detects the sensor as new and performs a full heater
calibration. Of course don't calibrate the heater with the sensor in very hot
exhaust or in an overheated state.

For more details, Please visit : http://www.innovatemotorsports.com/press.php

Web Site = http://www.innovatemotorsports.com/

Contact Details = Innovate! Technology, Inc.
5 Jenner
Suite 100
Irvine, CA 92618
TEL: 949-502-8400
FAX: 949-502-8439
Email : innovatemotor@gmail.com

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