Thermo 42i, Instruction Manual

Page: 31 / 314

Operation
Pushbuttons
Thermo Electron Corporation Model 42
i
Low Source Instruction Manual 3-3
Pushbuttons
The Pushbuttons allow the user to traverse the various screens/menus.
Figure 3-2. Front Panel Pushbuttons
Table 3-1. Front Panel Pushbuttons
= 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.