BNC SAM 935 Portable Gamma Spectroscopy System - Manual (Page 31)

SAM 935™ Instruction Manual 27
4.6.2 Function Keys
The labels just above the function keys show what function each key will perform.
Some function keys perform a single defined function, such as R ETURN , which always appears over F1
when available. R ETURN is used to exit from the current screen when done. C ANCEL is used to abort from a
step, typically without saving any of the changes that might have been made.
Other function keys, such as E NABLE , are toggles; the meaning of the button will change each time it is
pressed (E NABLE becomes D ISABLE , for instance).
4.6.3 Scrolling Through Long Menus
Many of the screen modes allow (or require) you to select an
item from a list of alternatives, such as the list of isotopes
shown here. To scroll through this list, use the
↑
and
↓
arrow
keys to highlight an item, and the E NTER key to select it.
Some lists are too long to be displayed on one screen—sim-
ply keep scrolling with the down arrow key. When you scroll
down past the last item displayed, it will jump to the next
screen of the menu. Or use the
←
or
→
arrow keys to more
quickly turn to the previous or the next menu screen,
respectively.
4.6.4 Editing Instructions
A few screen modes require a text description or a numerical value to be entered. Since the SAM 935 key-
board has only 10 keys, entering this information requires some care. However, all data in the SAM 935 is
battery-backed-up so most information of this type will have to be edited only once during the life of the
instrument.
When new entries are created, the SAM 935 may automatically enter a default value, such as “Name”. You
will want to delete this entry before entering your data.