TB 9-6625-152-24
Table 14. Audio Voltmeter AC.
Calibrator
Test instrument
Output
Indication limit (V ac)
Voltage (V)
Min
Max
30 m
1k
25.1 m
34.9 m
200 m
1k
189 m
211 m
1
1k
0.957
1.043
1
50
0.957
1.043
1
100
0.957
1.043
1
10 k
0.957
1.043
1
30 k
0.957
1.043
1
50 k
0.957
1.043
2
1k
1.917
2.083
5
1k
4.797
5.203
10
1k
9.597
10.403
30
1k
28.797
31.203
(8) Set outputs to minimum and disconnect equipment setup.
b. Adjustments. Perform adjustments in Section IV below.
16. Audio Generator Output Level
a. Performance Check
(1) Connect TI AF GEN OUT to multimeter input.
(2) Set multimeter for AC voltage measurement in AUTO range.
(3) Set TI as listed in (a) through (f) below:
(a) Press AF TEST.
(b) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, FREQ, and set to 50 Hz.
(c) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, FREQ, and set to 50 Hz.
(d) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is
highlighted, LEVEL, and set to 1 V.
(e) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, LEVEL, and set to 1 V.
(f) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF2 FREQ is
highlighted, then press ON OFF key to off.
(4) Press AF TEST, [Audio Gen], [Gen1/Gen2] until AF1 FREQ is highlighted,
then press ON OFF key to on. If multimeter indication is not within limits specified in
(5) Repeat technique of (3) (b) and (d) for remaining TI frequencies and output
levels in table 15. If multimeter indications are not within limits specified in table 15,
perform b below.