Displaying Setpoints - HP 5890 Series II Plus Reference Manual

Keyboard and Displays

Displaying setpoints

HP 5890 SERIES II (hereafter referred to as HP 5890) operation is
monitored and controlled through its front panel keyboard, and
alphanumeric and LED displays.
Some instrument functions are monitored continuously: signal levels,
temperatures, carrier gas flow rates (if electronic flow sensing is
installed), and inlet purge valve status (if a split/splitless capillary inlet
is installed).
There are two general display areas:
Alphanumeric Display. Echoes keys pressed at the HP 5890
keyboard show current setpoint values for instrument functions;
actual values of continuously monitored instrument functions; and
warning, error, information, and diagnostic messages.
LED Display. Consists of two parts: the left half (OVEN) displays
oven status during a run; the right half (STATUS) gives overall
instrument status at any given time.
Displaying setpoints
Any particular instrument current value and/or setpoint is displayed at
the alphanumeric display simply by pressing the appropriate instrument
function key followed possibly by additional modifier" keys necessary to
further define the function (i.e.,
TIME
Figure 2-2
Example, a Typical Alphanumeric Setpoint Display
The name of the function key pressed is always displayed, along with the
current setpoint and/or measured values.
). For example, pressing
OVEN
or ,
A B
might give the display:
OVEN MAX
ACTUAL
MAXIMUM
or ,
SIG 1 SIG 2 ON
SETPOINT
400
or ,
OFF
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