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Lifeloc FC10
Plus
www.Lifeloc.com | 303-431-9500
Performing a Dry Gas Calibration Check
Prepare the dry gas tank according to its instructions on page 24.
Turn the FC10
Plus
on. Attach a mouthpiece to the back of the unit.
Press the Function button until the 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 19.
Attach the FC10
Plus
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, accurate results will be within +/- 5%.
Example: A .082 BAC corrected standard should read between .077 and .087 BAC.
If no alcohol is detected, display reads “INVALID CHECK”. Please check gas level on your
tank regulator and replace tank if empty. Repeat dry gas calibration check instructions.
(Calibration display fl ow chart is shown on p. 33)
Dry Gas Calibration
How to Check Status
This function allows you to check the status and internal conditions of your FC10
Plus
.
Press the Function button until display reads “STATUS”.
Press the Execute button. Display shows Model, Serial Number, Software Version, and
Software Release Date.
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