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Lifeloc FC10
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If successful, the display will read “CAL COMPLETE”.
If no alcohol is detected, display reads “INVALID CALIBRATION”. Please check gas level
on your tank regulator and replace tank if empty. Repeat dry gas calibration instructions
on page 19.
Disconnect the equipment and wait at least two minutes before conducting a Cal Check.
Note: Following calibration, a Cal Check is required before the unit allows you to conduct
any tests.
(Calibration display fl ow chart is shown on p. 26)
Performing a Dry Gas Calibration Check
Prepare the dry gas tank according to its instructions on page 19.
Turn FC10 on. Attach a mouthpiece to the back of the unit.
Press the Function button until display reads “CALIBRATION”.
Press the Execute button. Display reads “DRY CHECK”.
Verify the Calibration Standard is set to the corrected BAC.
Using the Altitude Correction Factor (ACF) chart on the dry gas tank, calculate the
corrected BAC.
Corrected BAC = (tank BAC) x (ACF)
To select a new Calibration Standard, see page 16.
Attach the FC10 mouthpiece to the regulator by sliding it over the mouthpiece adapter,
ensuring a snug fi t.
Be prepared to press the Gas Tank Regulator button for up to 10 seconds.
Start pressing (gas fl ow will start)
• Press the Execute button to proceed and start a 3 second countdown.
• Press the Execute button again to take a sample.
• Continue holding the Regulator button for another 3 seconds.
Stop pressing (gas fl ow will stop)
Read the result. It should be within +/- .005 BAC of the corrected standard used. If your
solution is greater than .100 BAC, accurate results will be within +/- 5%.
Example: A .082 BAC corrected standard should read between .077 and .087 BAC.
Dry Gas Calibration
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