GasAlertMicroClip
Calibration
9
Calibration
Procedure
Display
Procedure
Display
a
Caution
Calibrate only in a safe area that is free of
hazardous gas in an atmosphere of 20.9%
oxygen.
1. Press and hold
C
as the detector
performs the
OFF
countdown. Continue
holding
C
when the LCD briefly
deactivates.
4. When
is displayed and
flashes, connect the gas cylinder (refer to
page 10) and apply gas at a flow rate of
250 to 500 ml/min.
After a sufficient amount of gas has been
detected (approximately 30 seconds), the
detector beeps,
is displayed, and
flashes while the detector
completes the calibration.
2. The LCD then activates again and
performs the
CAL
countdown. Continue
holding
C
until the countdown is complete
to enter calibration.
5. The LCD displays
CAL DUE
. Next, a
screen displays showing the number of
days remaining before calibration is due
for each sensor. The LCD then displays
the earliest calibration due date, as some
sensors require more frequent
calibrations.
3.
flashes while the detector
zeroes all of the sensors and calibrates the
oxygen sensor. If a sensor fails to auto
zero, it cannot be calibrated. When auto
zero is complete, the LCD displays
APPLY
GAS
.
Note: Only use the calibration cap during the calibration
span process and for bump tests.
Wind currents may cause false readings and poor calibrations.
Do not calibrate the detector during or immediately after
charging is complete.
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