Page 46
CALIBRATION CHECK (Dry Check)
Dry Gas Calibration
Verify the Standard Type is set to Dry Gas.
Turn FC20 ON. Attach a mouthpiece to the back of
the unit.
Press Function button until display reads
“CALIBRATION”.
Press Execute button. The display will read “DRY
CHECK”.
Attach the FC20 mouthpiece to the regulator by
sliding it over the mouthpiece adapter, ensuring a
snug fit.
Press and hold down the regulator button to deliv-
er a gas sample.
After the gas flows for 3 seconds, press and re-
lease the Execute button to take the sample.
After 3 more seconds release the regulator button
to discontinue the flow of gas from the tank.
The display will read a result that should be within
+/-.005 BAC of the standard (if .100 BAC or less).
Check your result against the actual tank standard,
not the corrected standard.
Page 46
CALIBRATION CHECK (Dry Check)
Dry Gas Calibration
Verify the Standard Type is set to Dry Gas.
Turn FC20 ON. Attach a mouthpiece to the back of
the unit.
Press Function button until display reads
“CALIBRATION”.
Press Execute button. The display will read “DRY
CHECK”.
Attach the FC20 mouthpiece to the regulator by
sliding it over the mouthpiece adapter, ensuring a
snug fit.
Press and hold down the regulator button to deliv-
er a gas sample.
After the gas flows for 3 seconds, press and re-
lease the Execute button to take the sample.
After 3 more seconds release the regulator button
to discontinue the flow of gas from the tank.
The display will read a result that should be within
+/-.005 BAC of the standard (if .100 BAC or less).
Check your result against the actual tank standard,
not the corrected standard.
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