Navair 17-20AQ-347, Техническое руководство, Страница: 17 / 23

NAVAIR 17-20AQ-347
14
TI
AV SOURCE
GUARD
SOURCE
SENSE
CHASSIS HI
LO
HI LO
I+
I-
GUARD
Ω
GUARD
Figure 5. Measurement for 100 mV Range
4.2.11 Select the AV source 1 V range and perform the following measurement.
4.2.11.1 Depress the TI controls to select the 100 mV RANGE. Set the AV source controls to the indicated voltage value, to
the indicated frequency, and to the
±
% error setting applicable to the frequency of measurement as obtained in step 4.2.3.8.
4.2.11.2 Verify that the TI indication is within the tolerance limits listed in the following table.
AV Source
TI RANGE
(mV)
Output Volts Frequency
Tolerance Limits
100 0.100000 10 Hz* 99.848
-3
to 100.152
-3
100 0.100000 50 Hz* 99.960
-3
to 100.040
-3
100 0.100000 1 kHz 99.960
-3
to 100.040
-3
100 0.100000 20 kHz 99.960
-3
to 100.040
-3
100 0.100000 50 kHz 99.918
-3
to 100.082
-3
100 0.100000 100 kHz 99.692
-3
to 100.308
-3
*Select 10 Hz ACV filter.
4.2.12 Set the equipment controls for minimum output and disconnect the test setup.
2.2