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exhaust pipes. This condensation water could then be blown by the exhaust
stream against the hot sensor when the car is started. The resulting heat shock
can permanently damage the sensor.
2.5 How to fabricate a copper heat sink
Use a 4” x 4” (10cm x 10 cm) sheet of copper sheet metal 14ga (1.5mm) thick. Drill a hole in the
center with the same diameter of the oxygen sensor threads ~3/4” (19mm).
Fold the sides up 45 deg and mount it between the sensor and the bung like you would a big
washer. Orient it such that the sides are exposed to good airflow.
3 First Time Use
1. Do not connect the sensor yet.
2. Switch 12V supply to the LC-1 on and wait for 10 seconds.
3. Switch the 12V supply off after 10 seconds.
4.
Connect the sensor to the sensor interface connector.
The sensor must be exposed to air
for the first time calibration.
5. Switch the LC-1 on and wait for 2 minutes.
If you connected a LED to the calibration button, you will at first see the LED blink slowly and
steadily. If it blinks for a fixed number of pulses, then switches off for 2 seconds and then repeats,
you have an error code. See Appendixfor details.
Slow and steady blinking indicates that the sensor is warming up to its optimum operating
temperature. The warm-up period will last for about 30 seconds for a cold sensor, depending on
the sensor type used.
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. After the first time use
