TB 9-6625-1866-50
(2) Adjust dc voltage standard for 0.500000 volt.
(3) Turn NULL switch to 10, 1, .1, and .01 while adjusting R329 (fig. 2 or 3) for
0 (zero) indication on UUT meter.
22. Voltage Dividers
a. Performance Check
(1) Turn UUT RANGE selector switch to 500 and A, B, C, D, and E dials to 3, 9, 9, 9
and 10.
(2) Adjust dc voltage standard (A2, table 1) to 400 volts.
(3) Turn NULL switch to 10, 1, and .1 positions and at each position adjust dc
voltage standard for null indication on UUT meter. Dc voltage standard will indicate
between 399.80 and 400.20 volts.
(4) Turn NULL switch to VTVM.
(5) Adjust dc voltage standard for 0 (zero) indication on UUT meter.
(6) Repeat technique of (2) through (5) above for A, B, C, D, and E switch settings
listed in table 10. Dc voltage standard indication will be within specific limits for each set
of A, B, C, D, and E switch settings.
Table 10. Voltage Divider
Unit under test switch settings
Dc voltage standard
Dc voltage standard indication (V)
A
B
C
D
E
initial setting
Min
Max
2
9
9
9
10
300.00
299.850
300.150
1
9
9
9
10
200.00
199.900
200.100
0
9
9
9
101
100.00
99.950
100.050
0
8
9
9
10
90.00
89.9550
90.0450
0
7
9
9
10
80.00
79.9600
80.0400
0
6
9
9
10
70.00
69.9650
70.0350
0
5
9
9
10
60.00
59.9700
60.0300
0
4
9
9
10
50.00
49.9750
50.0250
0
3
9
9
10
40.00
39.9800
40.0200
0
2
9
9
10
30.00
29.9850
30.0150
0
1
9
9
10
20.00
19.9900
20.0100
0
0
9
9
10
10.00
9.9950
10.0050
0
0
8
9
10
9.00
8.99550
9.00450
0
0
7
9
10
8.00
7.99600
8.00400
0
0
6
9
10
7.00
6.99650
7.00350
0
0
5
9
10
6.00
5.99700
6.00300
0
0
4
9
10
5.00
4.99750
5.00250
0
0
3
9
10
4.00
3.99800
4.00200
0
0
2
9
10
3.00
2.99850
3.00150
19
