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Keyboard and Displays
Entering setpoints
34
Examples of possible displays are provided where appropriate throughout
the manual.
If a particular function is not installed in your instrument, an
appropriate message is displayed when the key corresponding to the
function is pressed. For example, if no heated zone controlled by
DET B TEMP
is installed, pressing
DET B TEMP
gives the display:
ACTUAL SETPOINT
DET B NOT INSTALLED
Typical Display, a Function NOT Installed in the Instrument
Figure 2-3
Entering setpoints
To enter a setpoint value for a particular instrument function, the
function is first displayed by pressing the appropriate key(s).
Once the chosen HP 5890 function is displayed, a new setpoint value can
be entered at any time by pressing appropriate keys
0
through
9
,
.
,
-
, or possibly
A
,
B
,
ON
,or
OFF
. For a numeric value,
ENTER
is pressed to terminate the entry. Figure 2•4summarizes the two steps
involved.