GMI GT series - Description of Csm Button Operation

5-4
CONFINED SPACE MODEUSER HANDBOOK
5.5 DESCRIPTION OF CSM BUTTON OPERATION
5.5.1 Lights
To switch ON the backlight:
• Press and hold the Centre button .
To switch ON the ashlight:
• Press and hold the Centre button again.
The backlight and ashlight are both timed to switch OFF after
two minutes or can be switched OFF by a third press and hold the
Centre button .
5.5.2 Min / Max
To show the Maximum gas readings:
(since the current mode was selected)
• Press and hold the LH button .
To show the Minimum gas readings:
(since the current mode was selected)
• Press and hold the LH button again.
A third press and hold the LH button returns to the live reading.
Note1: If the instrument is in alarm, the Min / Max function cannot
be used until the alarm is Acknowledged.
Note 2: If no button is pressed, after 30 seconds the display reverts
to live reading.