8505A
2.)
Any of 18 different reading rates can
be
specified using the following
push button
sequence:
STORE
(0-17)
SAMPLE
The SAMPLE annunciator now flashes at a specified rate.
For settings of 0-7, this rate
is the reading
rate. For the slower settings of 8-17, a single rate is
preset to indicate a reading in
progress.
Two methods are available for filter selection.
1
.
)
By toggling the FILTER push button, the
operator can select mode F (no mode
number)
or
FO
(mode
number
0).
2.
)
The following sequence can be
used to select any of the
five
filter modes:
STORE (mode
number) FILTER
MODE
NUMBER FILTER
TIMEOUT
FILTER
LED
(blank)
slow
none
on
0 fast
none
off
1
bypass
none
off
2
slow
550 ms
on
3
fast
50
ms off
(No Mode Number
is used for slow
filter
without
timeout. Push STORE FILTER.)
The
OFFSET
push button can
be
used to toggle into/out of the Offset mode (OFFSET annunciator
lights). Two methods are available
for simultaneously entering an offset
value
and activating the
Offset mode.
1.
)
A numeric
value may be entered using a store sequence. For example, store an offset of
1.25
as follows:
STORE 1.25 OFFSET
2.
)
A displayed reading
can be stored as the
offset
value. Use the
following
sequence:
STORE OFFSET
NOTE
In some
instances,
the displayed value may not be an
appropriate offset value. For
example,
if the displayed value is being
used
to zero the multimeter, it is important to
verify that no other mathematic operations are in effect.
In
such a case,
check
that
OFFSET, SCALING, and EXT REF annunciators are all off before storing a new offset
value.
Figure
2-2.
Front
Panel Push Buttons (cont)
2-11
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