Fluke 8506A Instruction Manual page 298

necessary,
recall
the
uncorrected reading
for
comparison by
using the
RECALL
(CAL COR)
sequence.
9.
Manually
select
the
100
mV
range, apply an appropriate
reference value
(190.00000
mV),
allow the
multimeter
to take
one
reading,
push
STORE
(reference
numerics)
(CAL COR)
once again,
and
verify the
result.
Repeat
this
procedure
in
sequence
for
each higher
VDC
range.
The
following reference values
are
recommended:
a.
IV
range:
1.9000000
b.
10V
range:
19.000000V
c.
10GV
range:
120.00000V
d.
1000V
range: 1000.
0000
10.
The
following steps store
negative gain corrections
for
each range.
Reverse
the
input connections to the multimeter.
11.
Now
return the reference source to the value used
for the
I0V
range
(1
9.000000V),
and manually
select the
IQV
range
on
the multimeter.
12.
First
allow the multimeter
to
take
at least
one
reading,
then
push
STORE
(reference
numerics)
(CAL
COR).
Ignore
polarity
when
entering
numerics
for the
reference
value.
13.
The
gain correction
is
automatically applied
to the
next reading
in
this range.
Verify
proper
reference value entry
by
observing
that
subsequent readings
of the
reference value equal
that
known
value
±
multimeter accuracy
specifications.
If
necessary,
recall
the
uncorrected reading
for
comparison by
using
the
RECALL
(CAL COR)
sequence.
14.
Manually
select
the 100
mV
range,
apply an appropriate
reference value
(190.00000
mV),
allow
the
multimeter
to
take
at
least
one
reading,
push
STORE
(reference
numerics)
(CAL COR)
once
again,
and
verify
the
result.
Using
the
preferred reference values
mentioned
above, repeat
this
procedure
in
sequence
for
each higher
VDC
range.
15.
Set the reference
output
to zero,
and remove
connections between
the
reference source and
the
multimeter.
16.
Front panel dc voltage calibration
is
complete once zero values
and
positive
and
negative gain corrections
have been
entered
for
each of the
five ranges.
17. If
no
further calibration
is
required, disable the Calibration
mode
by
sliding
the rear
panel switch
to
OFF.
7B-24.
REMOTE PROCEDURE
Remote
calibration
employs
the
same
sequence
as that
used
for local calibration.
The
Calibration
mode
must be enabled
when
the
multimeter
is
in
local
control
(REMOTE
annunciator
off).
The
rear
panel Calibration switch can then be positioned
to
ON
(front
panel
AVG/(CAL)
annunciator
flashes)
and remote
control
selected.
Remember
never to
cycle input
power
to the
multimeter
when
Calibration
mode
is
on.
The
full
calibration
procedure
is
as follows: