TB 9-6625-1976-24
Table 6. Voltage Accuracy (Transfer Level)
Multimeter
Calibrator output
Test instrument
indications
(V)
VOLTAGE
Voltage
0 (null)
volts
RANGE
RANGE-Hz
dials
dials
Volts
switch (V)
switch
(Hz)
(V)
Step
(V)
Frequency
Adjustment
(V)
1
1.0
1.0 kHz
1K
1.0000 K
10
1.00000
0.00140
b(1)
1 K
2
10
1.0 kHz
1.0000 K
10
10.00000
0.01220
b(2) and (3)
1 K
3
100
1.0 kHz
1.0000 K
100
100.0000
0.1220
b(4)
0.12301
4
10
1.0 MHz
1 M
1.0000 M
10
10.00000
b(5) thru
(7)
0.01502
5
1.0
1.0 MHz
1 M
1.0000
M
10
1.00000
6
1.0
1.0 MHz
1 M
1.0000
M
1
1.00000
0.01230
b(8)
7
10
1.0 MHz
1 M
1.0000
M
100
10.0000
0.150
b(9)
8
10
0.30 MHz
1 M
0.300
M
100
10.0000
0.150
9
10
20 Hz
100
20
100
10.0000
0.0170
10
10
100
100
100
10
10.00000
0.01220
b(1)
kHz
11
10
10
10 K
10 K
10
10.00000
0.01220
kHz
12
1.0
100
100 K
100.00 K
1
1.00000
0.01205
kHz
13
1.0
50
100 K
50.00 K
1
1.00000
0.00125
kHz
14
1.0
10
10 K
10
K
1
1.00000
0.01220
kHz
15
1.0
20 Hz
100
20
1
1.00000
0.01220
0.001223
16
1.0
1.0
1K
1.0000
K
1
1.00000
kHz
(Note change in
calibrator output)
VOLTAGE
Voltage
0 (null)
volts
RANGE
RANGE-Hz
dials
dials
Volts
switch (mV)
(Hz)
(mV)
switch
(mV)
Step
Frequenc
(mV)
y
17
100
1.0 kHz
1K
1.0000 K
100
100.0000
0.13
18
10
1.0 kHz
1K
1.0000 K
10
10.0000
0.022
NOTE: The following % of error data will not be utilized if indications in steps 4 and 5 are within limits:
1Record multimeter indication, then convert to % of error by multiplying value by 10. If out of tolerance, perform step 5
above prior to performing b (7) through (9) below.
2Record multimeter indication, then convert to % of error by multiplying value by 100.
3If indication is within limits, adjust TI VOLTAGE dials for the best null indication on multimeter. Record resulting TI
VOLTAGE dial setting for use in (15) below.
(10) Connect equipment as shown in figure 2.
12
