GasAlertMicro 5/PID/IR
User Manual
58
No Gas Detected
If the detector does not detect any gas within 30 seconds, the following
screens display.
1. Ensure the regulator valve is open and the calibration hose is
free of debris.
2. Replace the gas cylinder and/or regulator if required.
3. Replace the sensor(s) and sensor filter if required.
4. Press
G
to reapply gas or press
H
to end the span.
Did Not Reach Target Span
If the target span was not achieved, as defined in the
Span Gas Value
option, the following screens display.
Not reaching the target span can result from
• a problem with the span gas,
• the gas cylinder being past the expiry date, or
• a problem with the sensor.
Accept Current Span:
If the gas cylinder, regulator, and sensor
are operating correctly, press
C
to accept the current span.
Reject Current Span:
Press
A
to reject. Verify the gas cylinder,
detector settings, and sensor are operating correctly. Calibrate the
sensor again.
Large Span
If the span adjustment is unusually large (more than 15%), the following
screens display.
Ensure the correct gas cylinder being used and that the span concentra-
tion value(s) of the detector matches the span concentration value(s) of
the gas cylinder. Refer to
Span Gas Value
.
Adjustment Expected:
If the calibration adjustment is expected,
press
C
to accept the span.
Adjustment Not Expected:
If the calibration adjustment is not
expected or the span gas value does not match the gas cylinder,
press
A
to reject the span and calibrate that sensor again.
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