TB 9-6625-1314-35
Table 10. Dc Volts
Dc voltage standard indications
Test instrument
(V dc)
RANGE
switch setting
Indication
Min
Max
10 V
9.999
9.9930
10.0050
10 V
8.000
7.9950
8.0050
10 V
7.000
6.9955
7.0045
10 V
6.000
5.9960
6.0040
10 V
5.000
4.9965
5.0035
10 V
4.000
3.9970
4.0030
10 V
3.000
2.9975
3.0025
10 V
2.000
1.9980
2.0020
10 V
1.000
0.9985
1.0015
100 V
99.99
99.930
100.050
1000 V
999.9
999.30
1000.50
b. Adjustments
(1) Set rear panel ZERO adjustment to its mechanical midposition.
(2) Adjust A2R70 COMPARATOR BALANCE ADJ (fig. 1) to obtain an indication of
0.000 on TI (R).
(3) Adjust rear panel ZERO adjustment to obtain an indication of 0.000 on TI with
+ (plus) and - (minus) indication lights flashing alternately.
(4) Remove short from INPUT terminals.
(5) Adjust A2R40 CHARGE RESTORER ADJ (fig. 1) to obtain an indication of
0.000 on TI with + (plus) and - (minus) indicator lights flashing alternately (R).
(6) Set SAMPLE RATE control for a TI indication of approximately one sample per
second. If TI indication does not remain at 0.000 repeat a(2) and b(1) through (5) above.
(7) Repeat a(2) and (3) above.
(8) Set INT CHECK 8000 adjustment to its mechanical midrange.
(9) Adjust dc voltage standard for an output of 8.000 V.
(10) Adjust A3R51 RAMP SLOPE ADJ (fig. 1) to obtain an indication of 8.000 on TI.
Adjust INT CHECK 8000 for fine adjustment if required (R).
(11) Set RANGE switch to 100 V.
(12) Adjust dc voltage standard for an output of 80.000 V.
(13) Adjust A1R7 100 V ADJ (fig. 1) to obtain an indication of 80.00 on TI (R).
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