TB 9-6625-1976-35
(c) VOLTAGE RANGE switch to 1000 V.
(d) VOLTAGE dials to 700.000 V.
(e) MODE switch to OPER.
(8) Allow multimeter to take at least three readings (samples). Multimeter will
indicate 0 V (4.000 V); if not, perform b (1) below.
(9) Repeat technique of (4) through (8) above for remaining values listed in table 8,
using settings and values specified.
CAUTION
Ensure that multimeter remains in manual 1000 V range.
indications
Test
Calibrator output
0 (null) volts
Volts
instrument
(V)
(V)
700
1.0 kHz
1.0 kHz
4.000
700
20
Hz
20
Hz
4.000
500
10
kHz
10
kHz
0.600
700
10
kHz
10
kHz
4.000
700
50
kHz
50
kHz
1.200
700
100
kHz
100
kHz
12.0001
If out of tolerance, perform b (2) below.
1
b. Adjustments
(1) Adjust R9, LF GAIN (fig. 3) for best null indication on multimeter (R).
(2) Adjust C14, HF GAIN (fig. 3) for best null indication on multimeter (R).
18. Distortion
a. Performance Check
(1) Connect TI OUTPUT lead to audio analyzer INPUT terminal(s).
(2) Set for a 300 V, 20 Hz output. Measured distortion will be ≤0.1 percent.
(3) Repeat technique of (2) above for frequencies of 1, 10 and 50 kHz. Measured
distortion will be ≤0.1 percent.
b. Adjustments. No adjustment can be made.
CHANGE 1 19
