TB 9-6625-2267-24
10. AC Voltage
a. Performance Check
and LO.
(1) Connect calibrator OUTPUT HI and LO to TI INPUT V-
(2) Press FUNCTION ACV pushbutton.
(3) Press TI RANGE pushbuttons and set calibrator output for settings listed in
table 5. If TI indications are not within limits specified, perform b below.
Table 5. Ac Voltage
Test instrument
Calibrator
Test instrument
RANGE
output settings
indications
pushbuttons
Voltage
Min
Max
200 mV
190
mV
30 Hz
188.85
mV
191.15
mV
200 mV
190
mV
5 kHz
189.46
mV
190.54
mV
200 mV
190
mV
50 kHz
188.85
mV
191.15
mV
200 mV
190
mV
100 kHz
188.05
mV
191.95
mV
2
1.9 V
30 Hz
1.8900 V
1.9100
V
2
1.9 V
500 Hz
1.8959 V
1.9041
V
2
1.9 V
5 kHz
1.8959 V
1.9041
V
2
1.9 V
50 kHz
1.8900 V
1.9100
V
2
1.9 V
100 kHz
1.8800 V
1.9200
V
20
19
V
30 Hz
18.900
V
19.100
V
20
19
V
5 kHz
18.959
V
19.041
V
20
19
V
50 kHz
18.900
V
19.100
V
20
19
V
100 kHz
18.800
V
19.200
V
200
190
V
30 Hz
189.00
V
191.00
V
200
190
V
5 kHz
189.59
V
190.41
V
200
190
V
50 kHz
189.00
V
191.00
V
200
190
V
100 kHz
188.00
V
192.00
V
1200 V
400
V
5 kHz
398.8
V
401.2
V
1200 V
1000
V
40 Hz
994.0
V
1006.0
V
1200 V
1000
V
5 kHz
995.9
V
1004.1
V
1200 V
1000
V
20 kHz
994.0
V
1006.0
V
b. Adjustments
(1) Set calibrator to STANDBY.
(2) Press RANGE 1200V pushbutton.
(3) Simultaneously press FUNCTION AC MA and DCV pushbuttons. Adjust R72
(fig. 1) until TI indicates between -20 and -30.
(4) Press FUNCTION ACV and RANGE 2 pushbuttons.
(5) Set calibrator for a 1.9 V, 500 Hz output. Adjust R50 (fig. 1) until TI indicates
1.9000 5 digits (R).
(6) Press RANGE 200 pushbutton.
(7) Set calibrator for a 190 V, 50 kHz output. Adjust C2 (fig. 1) until TI indicates
190.00 5 digits (R).