TB 9-6625-2230-35
Table 4. Dc Current
Range
Calibrator
pushbutton
output
Test instrument indications
settings
settings
(mA)
(mA)
(mA)
Min
Max
2
1.900
1.8960
1.9040
20
19.000
18.941
19.059
200
190.00
189.41
190.59
2000
1900.0
1894.1
1905.9
10. Ac Voltage
a. Performance Check
(1) Set TI to measure ac volts on the 200 mV range.
(2) Connect TI VΩS and COMMON terminals to calibrator.
(3) Set calibrator output to 200 Hz at 100.00 mV. If TI does not indicate between
99.70 and 100.30 mV, perform b(1) and (2) below.
(4) Repeat technique of (3) above using settings, indications, and adjustments listed
in table 5.
b. Adjustments
(2) Set calibrator output to 100.00 mV. Adjust R15 (fig. 1) for a TI indication
slightly greater than 100.00 mV. Adjust R18 (fig. 1) for a TI indication of 100.00 mV (R).
Table 5. Ac Voltage
Test
instrument
Calibrator
Test instrument
range
pushbutton
Voltage
Indications
Adjustments
settings
settings
settings
Min
Max
200 mV
100.00
mV
50
Hz
99.70
mV
100.30
mV
---
200 mV
100.00
mV
10
kHz
99.60
mV
100.40
mV
---
200 mV
100.00
mV
40
kHz
98.00
mV
102.00
mV
---
2V
1.9000 V1
50
Hz
7.69
dB
7.89
dB
---
2V
1.0000 V
50
Hz
.9940
V
1.0060
V
---
2V
1.0000 V
1 kHz
.9940
V
1.0060
V
---
2V
1.0000 V
10
kHz
.9930
V
1.0070
V
C7(R)
2V
1.0000 V
30
kHz
.9860
V
1.0140
V
---
See footnote at end of table.
