MSA GasGard XL Manuel D'utilisation page 26

(3) Use control push buttons to select required parameter.
Right button [  ]
Up Button [  ]
Left button [ ESC ]
Down button [  ]
(4) Press [ENTER] to confirm the selected parameter.
(5) Use the control push buttons to change parameter value.
(6) Press [ENTER] to accept the changes.
NOTE: Pressing [ESCAPE] toggles to the upper menu.
If FlameGard is selected from the sensor list, the Setting menu changes to the following single screen:
(7) Use control push buttons to:
Accept changes and leave menu
Do not accept changes and leave menu
Return to the System menu.
GasGard XL
Configuration
US
26