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d.
Set
4708
OUTPUT
OFF,
and
reconnect
the
test
circuit
for Verification
(Fig.
2).
e
.
Set
the
4708
OUTPUT RANGE
to
lOOmV
and
adjust
the
OUTPUT
Display
to
1
00.0000m
V.
f.
Set
4708
OUTPUT
ON.
Adjust
OUTPUT
ti keys
for
a
DVM
reading of
VI.
g
.
Record
the
4708
OUTPUT
Display
setting in the
last
column
of
RSI
Table
4(a).
h
.
Repeat
(a) to
(g),
but
setting
the
4708,
IVD
ratio
and
DVM
as
required
to verify the
lOmV
and
ImV
Full
Range
outputs;
still
using the corrected
IV
Full
Range
output
at
step
(b).
Record
the
results
on
RSI
Table
4(a).
j
.
Sum
the Verification
setup
uncertainties
and
record
in
the
Us
column
as voltage deviations.
(Refer
to
Appendix
2).
Validity
Tolerance
Limit
Calculations:
Refer
to
Appendix
1
page
7-Al-l, para
1.
k
.
Calculate
the
Lower
and Upper
Validity
Tolerance
Limits:
Use
Calculation
A
if
the
4708 was
last
calibrated
by
Datron.
Use
Calculation
B
if
the
4708 was
last
calibrated
against the standards
being used
for
verification.
l
.
The 4708
mV
Full
Ranges
are verified
if
each of
the
4708
OUTPUT
Display
settings
recorded
at (g)
are
at
or
between
the
corresponding
Validity
Tolerance
Limits.
7-18
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