TRIG triggers a new reading.
Enabled in external trigger mode.
EXT TRIG toggles betmen internal
and external trigger modes.
I
OFFSET stores the displayed reading as an
offset, which the 8840A subtracts from all
subsequent readings in the function
presently selected. Readings in the other
functions remain unaffected. Pressing
OFFSET again cancels the offset, or stores
RATE cycles between slow, medium and
fast reading rates. Automatically
selects the optimum filter for each
'
reading rate.
SRQ generates a service request over the IEEE-
488 bus if enabled by the SRQ mask (IEEE-488
lnterface option only). When pressed for
3
seconds, SRQ initiates diagnostic self-tests.
NOTE: Leave inputs disconnected during self-
tests or the 8840A may indicate errors.
If the
8840A is in remote, LOCAL returns it
\to local control. If the 8840A is in local, the
LOCAL button causes the
884049 to display
its
bus address for two and one half
seconds. Ignore if the IEEE-488 lnterface is
not installed.
a new offset if in a different function.
Error Condition
overrye
/
,n
b.44
Enabled
Reading Rate: Slow, Medium,
and Fast. Blinks off when a
Autorange On
reading is triggered.
\
Offset on
External Trigger
'Ode
Enabled
\-EX
TRIG
STF
OJER
ER/OR
CA<
AUT~
OFFSE~
Self-Test Enabled
TEST
m
A
REMOTE
a
1
1-1
1-1
n
n
1-1
mv
;i;c
1
Function and Units
I
EEE-488 Interface
(LA%
1.
17 17 17 17 17
4WIRE.
Annunciators
Annunciators
SRQ
-.- .-..I.-.
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