GasAlertMicroClip
User Manual
Calibration
x
Calibrate the detector at least once every 180 days,
depending on use and sensor exposure to poisons and
contaminants.
Guidelines
When calibrating the detector, adhere to the following
guidelines:
x
Calibrate the detector if the ambient gas display varies
at start-up.
x
Recommended gas mixture:
CO: 50 to 500 ppm balance N
2
H
2
S: 10 to 100 ppm balance N
2
LEL: 10 to 100% LEL or 0.5 to 5% by vol. methane
balance air
O
2
: clean air, 20.9 % (or 20.8%)
x
It is best to calibrate the sensor before changing the
alarm setpoints.
x
Calibrate only in a safe area that is free of hazardous
gas.
x
Do not calibrate the detector during or immediately after
charging is complete.
x
CG-Q58-4 and CG-Q34-4 calibration gas (4-gas mix)
are available from BW Technologies by Honeywell. See
the section,
Replacement Parts and Accessories
.
x
The oxygen sensor can be automatically calibrated each
time upon activation (if this feature is enabled). Activate
the detector in a normal (20.9%/20.8% oxygen)
atmosphere.
x
Calibration accuracy is never better than the calibration
gas accuracy. BW Technologies by Honeywell
recommends a premium-grade calibration gas. Gases
with the National Institute of Standards and Technology
(NIST) traceable accuracy improve the validity of the
calibration. Do not use a gas cylinder beyond its
expiration date.
x
The detector should be allowed to stabilize for 1 minute
after activation, prior to calibration or bump test.
x
If you require a certified calibration, contact
BW Technologies by Honeywell
.
x
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).
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