GT-FIRE
PORTABLE GAS DETECTOR
67816
Revision D
22
4.2.5. Button Operation
Action
Button
Note
Invert Display
Press
Max/Min
1
Press and Hold
1st press and hold - Maximum gas readings since the
mode was selected.
2nd press and hold - Minimum O
2
gas reading since
the mode was selected.
To return to live readings, press and hold again or
wait 30 seconds.
Alarm
Acknowledging
Press and Hold
Available when monitor is in alarm.
Refer to
for more details.
Lights
Press and Hold
1st press and hold - backlight ON
2nd press and hold - flashlight ON
3rd press and hold - backlight/flashlight OFF
Backlight / flashlight automatically switch OFF after
two minutes.
Manual Log
Press
‘LOG’ briefly appears on the display to confirm
manual log has been stored.
Clear Flow Fault
Press
Available only when monitor has a flow fault alarm.
Refer to
for more details.
Mode Selection
2
Press and Hold
Release 1s after the mode selection menu appears.
Use the UP
or DOWN
buttons to select
desired mode.
Note: The Max/Min function cannot be used until the alarm is acknowledged.
Note: To prevent inadvertently switching monitor OFF or changing mode while alarms
are active, the user must press and hold both the LH and RH buttons simultaneously
for an additional 5 seconds before the mode menu appears.
4.2.6. Logging
• Automatic datalogging is active for all ranges in this mode. By default, these logs are
recorded every minute.
• Manual log - can be taken at any time.
