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Section V
,
Paragraphs 5-7 to 5-8
5-7. ACCURACY
T E S T.
5-8. A voltmeter calibrator (-hp- Model 738BR Vo l t -
meter Calibrator) is
r e q u i r e d f o r
a.
Connect voltmeter
403A input a s shown i n F i g u r e
VOLTMETER CALIBRATOR
hp738BR
Figure
5-3. Accuracy
b. Set Model 403A FUNCTION to 15 C P S - 1 M C .
c. Set voltmeter calibrator output to
400
r m s . Model 403A should indicate
cps
300 V +3% (Table 5-2).
5-2
Figure
5-2.
Model
the accuracy test.
calibrator outputto Model
5-3.
403A
hp
VOLTMETER
Te s t
300
V,
.
403A
Bottom View
d. Check the other ranges using the voltmeter
c a l i b r a t o r outputs andModel 403A indications
listed in Table 5-2.
Table 5-2. Accuracy Te s t
Voltmeter C a l i b r a t o r
Output
(400
r m s )
cps
Model 403A
Model 403A
Indication
f u l l scale)
(4 3% of
00125-4
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