XITRON 2000I, User Manual

Page: 15 / 96

Front Panel Controls and Connections 15
output level, these keys initiate a numeric entry of a new output level, this
entry will be completed by pressing the required units key.
+/– Key
The change sign
(+/–)
key may be used during a numeric entry to change the
polarity of the entered data. If this key is pressed while the actual output level
is being displayed (i.e., when not in a numeric entry) then the output level is
reversed (i.e., the output polarity is changed).
Arrow Keys
During a menu selection, and during the “Adjust” mode, the “2, 4, 6 and 8”
keys are arrow keys, which scroll through various actions that show in the
display.
4 key has a
3
(left arrow)
These keys are used to select the previous
displayed action.
2 key has a
6
(down arrow)
6 key has a
4
(right arrow)
These keys are used to select the next
action.
8 key has an
5
(up arrow)
To abort the selection of an activity and return the instrument to its previous
condition, press the MNU key.
Multiplier Keys
The “m” (milli) key and µ (micro) key are used during a numeric entry to
select the required multiplier for the entered data. If the m key is pressed then
the entered numeric is divided by one thousand. If the
µ key is pressed then
the entered data is divided by one million.
Note that prior to selecting the required units key, an entered multiplier may
be changed by pressing the other multiplier or cleared by pressing the
multiplier key a second time.Pressing a multiplier key while an actual output
level or measured input level is being displayed (i.e., not during numeric
entry) changes the display.
•
If the multiplier key is different from the display, then the display format
changes to use the selected multiplier.