BW Technologies GasAlertMicroClip XT - Auto Zero and Oxygen Sensor Calibration; Auto Span

GasAlertMicroClip
User Manual
40
Auto Zero and Oxygen Sensor Calibration
Note
Do not apply calibration gas until APPLY GAS displays,
otherwise the auto zero function will fail.
3. flashes while the detector zeroes the combustible and
toxic sensors, and calibrates the oxygen sensor.
When auto zero is complete, the detector beeps twice.
Auto Zero Successful: If the sensors successfully zero, the detector
proceeds to the Auto Span
function.
Auto Zero Unsuccessful: If the sensors fail auto zero, an error
message displays showing which sensor failed. Refer to Calibration
Troubleshooting.
Auto Span
4. When auto zero is complete, APPLY GAS displays.
5. Attach the calibration cap to the detector. Refer to Figure 7.
Open
the valve on the regulator and apply gas at a flow rate of
250-500 ml/min.
flashes and displays