TB 9-6625-2119-24
b. Adjustments. Set calibrator for an output of 0.1900 V and adjust 190 mV DC CAL
ADJ R10 (fig. 1) until TI indicates 190.0 (R).
Figure 1. Test instrument - top view.
9. Ac Voltage
a. Performance Check
(1) Press AC/DC mode pushbutton to AC (in) and range 200 m pushbutton (in).
(2) Set calibrator for an output amplitude of 190 mV at an output frequency of 40 Hz.
If TI does not indicate within limits specified in first row of table 4, perform corresponding
adjustment in table 4.
(3) Repeat technique of (1) and (2) above, for calibrator outputs, TI settings and
perform corresponding adjustments in table 4.
Table 4. Ac Voltage
Calibrator
Test instrument
Adjustments
Output
Output
Indication limits
amplitude
Range
Min
Max
b (1) and (2)
190 mV
40 Hz
200 m
188.5
mV
191.5
mV
190 mV
1 kHz
200 m
185.7
mV
194.3
mV
190 mV
10 kHz
200 m
187.6
mV
192.4
mV
1.9 V
40 Hz
2
1.885 V
1.915 V
b (3) and (4)
1.9 V
10 kHz
2
1.876 V
1.924 V
5
19 V
40 Hz
20
18.85 V
19.15 V