Operation
Pushbuttons
Thermo Fisher Scientific
Model 42
i
Trace Level Instruction Manual
3-3
Table 3–1
lists the front panel pushbuttons and their functions.
Table 3–1.
Front Panel Pushbuttons
Key Name
Function
= Soft Keys
The
(soft keys) are used to provide shortcuts that
allow the user to jump to user-selectable menu screens. For
more information on processing soft keys, see “Soft Keys”
below
= Run
The
is used to display the Run screen. The Run
screen normally displays the NO, NO
2
, and NO
x
concentrations.
= Menu
The
is used to display the Main Menu when in the
Run screen, or back up one level in the menu system. For
more information about the Main Menu, see “Main Menu”
later in this chapter.
= Help
The
is context-sensitive, that is, it provides
additional information about the screen that is being
displayed. Press
for a brief explanation about the
current screen or menu. Help messages are displayed using
lower case letters to easily distinguish them from the
operating screens. To exit a help screen, press
or
to return to the previous screen, or
to
return to the Run screen.
= Up, Down
= Left, Right
The four arrow pushbuttons (
,
,
, and
) move the cursor up, down, left, and right or
change values and states in specific screens.
= Enter
The
is used to select a menu item, accept/set/save
a change, and/or toggle on/off functions.
The Soft Keys are multi-functional keys that use part of the display to
identify their function at any moment. The function of the soft keys allows
immediate access to the menu structure and most often used menus and
screens. They are located directly underneath the display and as the keys'
functions change this is indicated by user-defined labels in the lower part of
the display, so that the user knows what the keys are to be used for.
To change a soft key, place the menu cursor “>” on the item of the selected
menu or screen you wish to set. Press
followed by the
selected soft
key within 1 second of pressing the right-arrow key. The edit soft key
prompt will be displayed for configuration for the new label.
Soft Keys
