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Use'). The heater calibration data in the LC-1 will be reset when the device is operated from 12V
without a sensor connected for at least 5 seconds. You can force a reset by doing this, and then
recalibrate by turning the unit off, reconnecting the sensor, and turning the unit on.
After the sensor is warmed up the meter automatically calibrates the sensor heater controller to
the particular sensor. During this 20-second period the LC-1 collects and calculates sensor-
specific data required to quickly reach operating temperature in the future.
Note: When using the Bosch Sensors the LC-1 may perform multiple calibration passes.
This is normal and need not cause concern. When it completes, the LC-1 also will perform
a free air calibration. Make sure the sensor is operating in free air for the heater and free
air calibration.
4.3 Calibration Schedule
Normally aspirated daily driver:
- Calibrate before installation of new sensor
- Calibrate new sensor again after 3 month of use
- Thereafter calibrate once a year or every 20,000 miles, whichever comes first
Turbo car, daily driver (tuned rich):
- Calibrate before installation of new sensor
- Calibrate new sensor again after 3 month of use
- Thereafter calibrate twice a year or every 10,000 miles, whichever comes first
Race car
- Calibrate before first installation of new sensor
- Calibrate once per race weekend
Dyno use
- Calibrate a new sensor
- Calibrate every 2-3 days, depending on usage
5 Remote display and recording of Lambda and/or AFR
In many applications it may be desirable to monitor the air-fuel data remotely using a dash-
mounted instrument. The LC-1 provides two options for that application.
5.1 Analog Lambda/AFR instrument.
There are many analog lambda/AFR displays on the market. They are essentially voltmeters for a
voltage between 0 and 1 V and measure the analog voltage of a narrow band oxygen sensor.
Some are true analog instruments while others provide a LED bar. Because of the very limited
sensing range of a narrow band sensor they are essentially useless as true AFR meters. With the
LC-1, connecting these meters to the second analog output of the LC-1 allows them to be used
as true remote AFR meters, provided the LC-1 analog output is programmed to the
characteristics of the used meter. The LC-1's analog output 2 is factory programmed to provide a
linear output between 0V and 5V for an AFR of 7.35 to 22.39. Any other linear output range
between 0 and 5V can be programmed. See chapter 6.5: Programming the analog outputs for
details.
