GasAlertMicro
Calibration and Setting Alarm Setpoints
•
Calibrate a new sensor before use. Install the sensor,
activate the detector, and allow the sensor to stabilize
before starting calibration (used: 60 seconds; new: 5
minutes).
•
Calibrate the detector on a regular basis, depending
upon use and sensor exposure to poisons and
contaminants. BW recommends at least once every 180
days (6 months).
•
Calibrate the detector if the ambient gas display varies
at start-up (readings are above or below zero).
•
It is advisable to calibrate the sensor before changing
the alarm setpoints.
•
Calibrate only in a clean atmosphere that is free of
background gas.
•
To disable an alarm, set the corresponding alarm
setpoint to zero.
•
The combustible sensor is factory calibrated from
0-100% LEL using methane. If monitoring a different
combustible gas in the 0-100% LEL range, calibrate the
sensor using the appropriate gas.
•
The oxygen sensor can be automatically calibrated each
time upon activation (if this feature is enabled). Activate
the detector in a normal (20.9% oxygen) atmosphere.
•
If a certified calibration is required, contact
.
•
Prior to calibration or a bump test, the detector must
stabilize after activation for 1 minute.
Diagnostics Protection
The detector tests the ambient air (Auto Zero) and the test
gas that is applied (Auto Span) to ensure it meets expected
values.
In auto span, if any target gas is not present or does not
meet expected values, the LCD will display an error message
and exit calibration mode. The previous value(s) will be
retained.
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