Calibration is performed to adjust the sensitivity levels of
sensors to ensure accurate responses to gas.
This calibration procedure is written as the procedure is intended.
If an error or alarm screen displays, refer to Calibration
Troubleshooting in the GasAlertQuattro Technical Reference
Calibrate only in a safe area that is free of hazardous gas
in an atmosphere of 20.9% oxygen.
If performing single gas calibration, calibrate O
The maximum hose length for calibration is 3 ft. (1 m).
The following steps are written for use with a standard
quad gas cylinder.
Calibration can only be aborted after the sensors have
been zeroed. If C is pressed to abort, CALIBRATION
Aborting the calibration procedure after applying gas may
result in an undesired calibration being saved.
BW recommends calibrations be verified following an
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1. Press and hold
as the detector
performs the Powering off countdown.
displays and the detector briefly
2. The detector activates again and
performs the calibration countdown.
Continue holding until Starting
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