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DSM250 User’s Manual
Page 8 Revision 1.4.16a
Power Key ( ) – turns the DSM250 off (see Section 3.1 on page 6 for details).
Back Key ( ) – returns to the next higher-level menu. If already at the top-level menu, exits
menu mode returns to favorite screens mode. Menu levels are indicated with indentation of the
text within the menus.
Scroll Up Key ( ) – changes the currently selected (or highlighted) menu item from the
presently selected one to the one immediately above it. If the top menu item is already
selected, the selection wraps to the bottom menu item.
Scroll Down Key ( ) – changes the currently selected (or highlighted) menu item from the
presently selected one to the one immediately below it. If the bottom menu item is already
selected, the selection wraps to the top menu item.
Enter Key ( ) – if the currently selected menu item has a submenu, opens that submenu. If the
currently selected menu item has an editable value (indicated by a colon (:) followed by the
data value, moves the selection to the editable value and changes the keys to edit mode.
3.3.2 Choosing a Value from a List
When editing a value chosen from a list, the keys on the DSM250 keypad have the following
functions:
Power Key ( ) – turns the DSM250 off (see Section 3.1 on page 6 for details).
Back Key ( ) – aborts the edit and restores the editable value to its previous value
Scroll Up Key ( ) – changes the currently selected editable value from the presently selected
one to the one immediately above it in the list of possibilities. If the top menu item is already
selected, the selection wraps to the bottom menu item.
Scroll Down Key ( ) – changes the currently selected editable value from the presently
selected one to the one immediately below it in the list of possibilities. If the bottom menu item
is already selected, the selection wraps to the top menu item.
Enter Key ( ) – Accepts the currently displayed value and stores it.
3.3.3 Entering a Numeric Value
When editing a numeric value, the keys on the DSM250 keypad have the following functions:
Power Key ( ) – turns the DSM250 off (see Section 3.1 on page 6 for details).
Cancel Ke
y ( ) – aborts the edit and restores the editable value to its previous value
Increase Key ( ) – increases the editable value
Decrease Key ( ) – decreases the editable value
Accept Key ( ) – Accepts the currently displayed value and stores it.
3.3.4 Entering a Textual Value
When entering a text string, the following menu will be presented: