TB 9-6625-1866-50
(7) Turn NULL switch to VTVM.
(8) Adjust dc voltage standard for 0 (zero) indication on UUT meter.
(9) Repeat technique of (5) through (8) above for A, B, C, D, and E switch settings
and corresponding initial dc voltage standard settings listed in table 5. Dc voltage standard
will indicate within limits specified for each setting of A, B, C, and D, and E switch.
Table 5. Voltage Divider
Unit under test
Dc voltage
Dc voltage standard
switch settings
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
10
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
0
0
1
9
10
2.00
1.99900
2.00100
0
0
0
9
10
1.00
0.99950
1.00050
0
0
0
8
10
0.900
0.899550
0.900450
0
0
0
7
10
0.800
0.799600
0.800400
0
0
0
6
10
0.700
0.699650
0.700350
0
0
0
5
10
0.600
0.599700
0.600300
0
0
0
4
10
0.500
0.499750
0.500250
0
0
0
3
10
0.400
0.399800
0.400200
0
0
0
2
10
0.300
0.299850
0.300150
0
0
0
1
101
0.200
0.199900
0.200100
0
0
0
1
02
0.100
0.099950
0.100050
1Note
Recalibrate UUT as necessary throughout this check, using the ADJ. CAL. Control in conjunction with VOLTS RANGE
and CAL PUSH (OP-CAL) switches. Recalibration is necessary if a beyond-specified-tolerance indication is obtained; recheck
any erroneous indications after recalibration. Recalibration procedure is given in paragraph 12a(1) through (3).
2Record dc voltage standard indication.
3Difference between the dc voltage standard indication recorded above and this indication will be between 0.09995 and
0.10005 volt.
b. Adjustments. No adjustments can be made to voltage divider. Recalibration may
correct an out-of-tolerance condition. (See note below table 5.)
11
