Honeywell BW GasAlertMicro User Manual page 55

Press C to confirm the pass code and to proceed
to the auto span.
Do not apply the calibration gas until K displays.
Auto Span
Press C to bypass the calibration and proceed to
alarm setpoints.
5. When the LCD displays K, attach the calibration cap
and apply the gas to the sensor at a flow rate of
250 to 500 ml/min.
The auto span function begins calibrating the gases
(maximum four). The audible alarm beeps once
when the detector senses a sufficient gas
concentration.
The detector then spans the sensor(s) for
approximately 2 minutes. When the span is
complete, the audible alarm beeps three times.
Note
Note
Calibration and Setting Alarm Setpoints
6. Remove the calibration gas.
Auto Span Successful
If the calibration is successful, the following screen displays.
The LCD then displays the alarm setpoints screen.
If the span adjustment is large (more than 20%), the LCD
displays a warning message: SPAn AdJuSt unuSuALLY
LArgE - chEck thAt thE cAL gAS IS cOrrEct.
The following screens also display:
7. Press C YES to accept the calibration or press H
NO to reject the values.
GasAlertMicro
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