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3-41. AC Power Amplitude Accuracy (High Voltage)
The AC Power Amplitude Accuracy (High Voltage) test checks the current outputs at the
AUX terminals in the presence of a high voltage. Use the 5790A, A40 and A40A shunts,
and the shunt adapter, as described in the 5790A Operator Manual. Table 3-27 shows the
test points.
Table 3-27. AC Power Amplitude Accuracy Test (High Voltage)
Nominal
Nominal
Value
Value
(NORMAL)
(AUX)
1000 V
3.3 mA
1000 V
3.3 mA
1000 V
33 mA
1000 V
33 mA
1000 V
33 mA
1000 V
33 mA
1000 V
33 mA
(Optional)
33 mA
800 V
3-42. AC Power Amplitude Accuracy (High Current)
The AC Power Amplitude Accuracy (High Current) test checks the voltage outputs at the
NORMAL terminals in the presence of a high current. Apply a short to the AUX
terminals to provide a low-impedance path for current. Table 3-28 shows the test points.
Table 3-28. AC Power Amplitude Accuracy Test (High Current)
Nominal
Nominal
Value
Value
(NORMAL)
(AUX)
33 mV
11 A
33 mV
11 A
330 mV
11 A
3.3 V
2.19 A
3.3 V
329 mA
Frequency
Phase
(degrees)
65 Hz
0
65 Hz
90
500 Hz
0
500 Hz
90
1 kHz
0
5 kHz
0
7 kHz (10 kHz
0
optional)
10 kHz
Frequency
Phase
(degrees)
65 Hz
0
65 Hz
90
1 kHz
0
5 kHz
0
10 kHz
0
Calibration and Verification
Performance Verification Tests
Measured
Deviation
Value (A)
(AUX)
Measured
Deviation %
Value (V)
(NORMAL)
90-Day
%
Spec. (%)
0.161%
0.161
0.161
0.161
0.161
0.241
0.541
0.541
90-Day Spec.
(%)
0.101%
0.101
0.038
0.048
0.048
3
3-33
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