TB 9-6625-1493-24
Table 8. Ac Voltage (Reference Level)
Calibrator output
Test instrument
AC Measurement Standard
RANGE
Initial
Adjustments
switch
voltage
Voltage
settings
(V)
dials
Min
Max
(R)
20 kHz
1.0
1
1.000000
.9983500
1.0016500
C502
20 Hz
1.0
1
1.000000
.9969750
1.0030250
---
10 kHz
1.0
1
1.000000
.9992000
1.0008000
---
1
400 Hz
10
10
10.00000
9.994450
10.005550
R403
20 kHz
10
10
10.00000
9.983500
10.016500
C401
20 Hz
10
10
10.00000
9.969750
10.030250
---
10 kHz
10
10
10.00000
9.992000
10.008000
---
1002
400
Hz
100
100.0000
99.94450
100.05550
R406
20
kHz
100
100
100.0000
99.83500
100.16500
C403
---
20
Hz
100
100
100.0000
99.69750
100.30250
---
10
kHz
100
100
100.0000
99.92000
100.08000
10003
400
Hz
500
500.000
499.7100
500.2900
R410
5004
10
kHz
1000
500.000
499.5750
500.4250
C405
---
400
Hz
600
1000
600.000
599.4000
600.6000
---
10
kHz
600
1000
600.000
599.4000
600.6000
---
20
kHz
600
1000
600.000
599.0000
601.0000
1Obtain
final null on the .01 NULL switch position.
2Obtain final null on the .1 NULL switch position.
3Obtain final null on the 1 NULL switch position.
4Power amplifier required.
(7) Connect equipment as shown in figure 5.
Figure 5. Ac voltage - part II (reference level).
(8) Set ratio transformer dial to 0.0010000.
(9) Position controls as listed in (a) through (c) below:
16