Fluke 8502A - Sample Rate Setting; Filter Mode Selection; External Reference Input

8502/
SAMPLE
1.
Press SAMPLE to toggle between
sampies/reading rates
5
and 7.
2.
Alternately, any rate between 0 and
17 may be programmed
from the front panel. Press:
STORE
—
NUMERIC -^SAMPLE
-^(rate number)
ENTER
The
new rate will go
Into effect
as soon as
ENTER
is
pressed.
3. To
display the samples/reading rate, press:
RECALL
^
SAMPLE
The rate will be displayed as long as
SAMPLE is held depressed.
4.
The SAMPLE LED will flash at the
samples/reading rate selected. With more than 128 samples/
reading (rate
7)
there will be no
distinguishable rate difference
from the
LED's
indications
at rate
7.
FILTER
1.
Press
FILTER
to toggle
between filter modes
F and FO. The
FILTER
LED
will
come
on
for
F (slow filter).
2. Use the
following switches to select
filter modes F1, F2, or
F3:
STORE -^NUMERIC
-^FILTER
—
(1,2,
or
3)
ENTER
3.
Display the filter mode in
effect
by
pressing;
RECALL
—
FILTER
The mode
will
be
displayed as long as
FILTER is held depressed.
4. If modes
FI
or
F3 are in effect, subsequent
use of
FILTER
will tt^gle the
8502A back to mode F.
If
mode
F2 is in
effect, pressing FILTER will toggle
back to mode FO.
EXTERNAL
REFERENCE
1.
Press EXT REF to enter the External Reference mode (EXT
REF LED will flash). The external
reference voltage applied at the rear panel terminals
will be displayed as
long
as EXT REF
is
held
depressed.
Release of the switch enters the 8502A
into
the
External Reference mode.
2.
For proper external reference operation; the resistance
between SENSE LO on the front panel and
external reference HI or
LO
on the rear panel must be
less than
20
Kohms. Apply a direct connection
between these two
points
to
insure correct operation.
REMOTE
1. Use
REMOTE
to toggle
between local and remote operation with
either the RS
232 (Option
—06)
or
or the
Parallel (Option -07) Interface installed.
2.
.
Use
REMOTE
to
toggle into local only if in remote with the
IEEE
(Option
—05) installed.
Figure
2-5.
Modifiers (cont)
1
2-1