TB 9-6625-1314-35
(5) Adjust output of dc voltage standard or electrical test set to obtain an indication
of +1.999 on TI. If dc voltage standard or ac/dc voltmeter does not indicate between 1.995
and 2.003 V, perform b(4) and (5) below.
(6) Adjust autotransformer (A5) from 105 to 125 V while repeating (5) above.
(7) Adjust autotransformer to 115 V.
(8) Press TI range pushbuttons as listed in table 13 and adjust dc voltage standard
or electrical test set for corresponding indications. Dc voltage standard or ac/dc voltmeter
indications will be within limits s fled.
Table 13. Dc Volts Range and Tracking
Dc voltage standard or ac/dc
Test instrument
voltmeter indications (V)
Range pushbutton
Indication
Min
Max
20
19.99
19.950
20.030
20
18.88
18.841
18.919
20
17.77
17.732
17.808
20
16.66
16.623
16.697
20
15.55
15.514
15.586
20
14.44
14.405
14.474
20
13.33
13.296
13.363
20
12.22
12.187
12.252
20
11.11
11.078
11.141
200
199.9
199.5
200.3
2000
999
994
1004
b. Adjustments
(1) Adjust dc voltage standard on electrical test set for an output of 0.19990 V.
(2) Adjust FS (+.2 VDC) (fig. 6) to obtain an indication of +199.9 on TI.
(3) Adjust NEG FS (-.2 VDC) (fig. 6) to obtain an indication of 199.9 on TI.
(4) Adjust dc voltage standard on electrical test set for an output of 1.9990 V.
(5) Adjust 2 FS (2 VDC) (fig. 6) to obtain an indication of 1.9990 on TI.
27. Dc Current (Level A)
a. Performance check
(1) Connect equipment as shown in figure 7.
(2) Position plugs of dc current shunt (A6) for 0.001 AMP.
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