HP 3468A Operator's Manual page 18

Another of the unique features of the 3468A is the 12 character alphanumeric
display with 12 dedicated annunciators. The alphanumeric display may be used in
one of three modes: NORMAL, MESSAGE, or USER GENERATED MESSAGE. The
annunciators are used to indicate the current state of the multimeter's features
(SRQ, autozero, 2- or 4- wire ohms, etc.).
Do This
press:
Normal
This puts the 3468A in its SELF TEST
mode. For now, just watch the display
and notice the 12 characters in the
display and the 12 annunciators.
In the NORMAL mode of operation the display is used to indicate the results of the
measurement, whether dc voltage or ohms, etc. The measurement is displayed in
the 2nd through 7th characters in the display. The first digit displays the polarity
(+ or —) of the reading. The measurement function (and, in some instances, an
indication of range) is given in the last four characters of the display. The max-
imum display is 301000 with the decimal point appropriately placed for the range.
Do This
press:
This puts the meter in the dc volts
function, manual range mode. Note the
M RNG annunciator in the display.
Press these keys several times and
watch the display as the decimal point
moves across, and as the display in-
dicates VDC for Volts DC. The display
is always read directly. Do the same in
the 2-wire ohms mode. Watch as the
display indicates OHM, KOHM {kil-
ohms) and MOHM (Meg-ohms).
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