GT-FIRE
PORTABLE GAS DETECTOR
67816
Revision D
19
Figure 18: M CO
4.1.4. Button Operation
Action
Button
Note
Invert Display
Press
Max
1
Press and Hold
Displays the Maximum readings 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.
Range
Selection
2
Press
Toggle between “Methane” and “Methane & CO”
displays.
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.
Pump ON/OFF
Press
Clear Flow Fault
Press
Available only when monitor has a flow fault alarm.
Refer to
for more details.
Zero
Press and Hold
Zero the Methane PPM range.
Pump must be switched ON.
Mode Selection
Press and Hold
Release 1s after the mode selection menu appears.
Use the UP
or DOWN
buttons to select
desired mode.