Unsuccessful Span - Honeywell GasAlertMicro 5 User Manual

Unsuccessful Span

If the sensor(s) did not span successfully, refer to the following sections
for possible solutions:
• Failed Span
• No Gas Detected
• Did Not Reach Target Span
• Large Span
Failed Span
If a sensor fails the span, the following error message displays.
If the sensor is not calibrated, it displays as FAIL in normal operation the
next time the detector is activated.
Calibration and Setting Alarm Setpoints
If all sensors fail the span, the following screen displays.
1. Ensure the regulator valve is open and that the gas cylinder
is not past the expiration date. Replace the gas cylinder and/
or regulator if required.
2. Replace the sensor(s) and sensor filter if required.
3. Press A to exit and then calibrate again in a safe area that
is free of hazardous gas in an atmosphere of 20.9% oxygen.
4. If the span fails a second time, reactivate the detector to test
the sensors.
If all sensors fail the span, the calibration due dates cannot be reset. The
following screens display.
GasAlertMicro 5/PID/IR
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