
The gas identifier icon will flash with the associated alarm
icon when a gas reading exceeds its alarm threshold
Warning: Us ers mus t familiarize thems elves with the icons in
both non-alarm and alarm s tates .
Warning: I f the dis play is mis sing icons or cannot be clearly
read, dis continue us e and contact GCT.
Warning: The IRLEL sensor will notdetecthydrogen(H2) or
acetylene(C2H2)gases.However,dueto their cross-sensitive
nature,the CO sensor will gointoalarmwell below10%LEL.
Turning On the Detector
Press and hold down the button. Once activated, the unit
will begin to display each sensor’s readings. A chasing “O”
indicates sensor stabilization:
Stabilization Fully operational
Turning Off the Detector
Press and hold the button until the OFF countdown
completes before releasing the button:
Battery Information
Low Battery Warning: With 20 minutes remaining run
time, the detector will beep, flash and display LOW BAT.
These warnings will continue until the unit performs an
automatic shutdown when the battery expires.
Charging: The instrument will cycle the battery icons and
display an approximate charge percentage (4-6 hours).
DO NOT charge the ins trument in a combus tible atmos phere.
DO NOT charge the ins trument in temperatures above or below
the s pecif ied range of 0°C to 40°C
Calibrating the Detector
Press and hold the button through the OFF countdown and
the C AL countdown. When prompted, apply gas using the
calibration cap provided:
Bef ore each us e,
check that all s ens ors
and alarm indicators
are clear of any
obs tructions