3.4. Button Definetions
Device has four buttons which are F1, F2, F3 and F4 buttons. These buttons have different functions on
different pages.
Up/Down buttons: Used to go up and go down in menus and lists and also
used to increase/decrease parameter's value.
Left/Right buttons: Used to go left or right in menus.
Confirm button: Used to go in to selected page, to make parameter's cell available to
change and to confirm parameter’s change.
Return button: Used to go back to previous menu and to cancel parameter's change.
Alarm button: Used to suspend alarms.
Erase button: Used to erase logs on the screen.
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