HP 3468A - Page 11

Display
12 character alphanumeric display
with 12 dedicated annunciators.
The display is read directly
engineering units, i.e.,
DC Volts, MOHM for Meg-ohm
resistance, etc.
Range Keys
keys are used to select the
f range for the measure-
Press any of the keys to
the manual range mode.
the M RNG annunciator in
splay.
]
5
]
]
Pressing this key tog-
gles between Auto and
Manual ranging.
Upranging.
Downranging.
Blue Key
ishitt] pressed before another key
executes the function shown
above that key.
These keys are used to select
special operating features of the
3468A. The next two chapters
provide a detailed explanation of
these keys. The blue shift key
allows for selecting the
” SHIFTED” functions of the bot-
tom row of keys. You can always
tell when you have pressed the
Shift key; the SHIFT annunciator
will appear in the display. It will
disappear when the function is
executed or shift is pressed
again.
Internal Trigger is selected by this
key. In this mode, the 3468A
triggers itself for the fastest
possible reading rate.
OSense
These terminals are use
voltmeter sense leads w
ing 4-wire ohms measur
OQ
SENSE
INPUT
(aire)
(2
WIRE)
©;o
Kk
3A/250\
FUSE
Additional Fea
Keys
Autozero is a function th
you to enable or disable
nal zero-correction circuit
ing Autozero off incre
reading rate with a tra
long term stability.
Pressing the Single Tri
causes the 3468A to |
reading and wait for the |
ger. Note the S TRG an
in the display.
Test/Reset performs an inte
test then resets the 346!
turn-on state. Any error
self test are noted in the