Fluke 5500A, Service Manual

Page: 83 / 296

Calibration and Verification
Performance Verification Tests
3
3-29
Table 3-20. AC Current Amplitude Accuracy Test (cont.)
Nominal Value Frequency Measured Value
(A)
(AUX)
Deviation % 90-Day Spec. (%)
32.9 mA 5 kHz 0.159
32.9 mA 10 kHz 0.459
33 mA 1 kHz 0.161
33 mA 5 kHz 0.241
190 mA 1 kHz 0.086
190 mA 10 kHz 0.466
329 mA 10 Hz 0.159
329 mA 45 Hz 0.080
329 mA 1 kHz 0.080
329 mA 5 kHz 0.159%
329 mA 10 kHz 0.459
0.33 A 1 kHz 0.171
0.33 A 5 kHz 0.791
2.19 A 45 Hz 0.094
2.19 A 1 kHz 0.094
2.19 A 5 kHz 0.714
2.2 A 500 Hz 0.171
2.2 A 1 kHz 0.471
11 A 45 Hz 0.068
11 A 500 Hz 0.098
11 A 1 kHz 0.268
3-35. Capacitance Accuracy
The Capacitance Accuracy test verifies the accuracy of the synthesized capacitance
output at the 5500A Calibrator front panel AUX terminals. Table 3-21 shows the test
points. Use the Fluke 6304C LCR Meter with PM9540/BAN output cable as shown in
Figure 3-5. This cable eliminates the need for a four-wire connection.
Note
Make sure there are no other connections to the 5500A, especially the
SCOPE BNC. Connecting any additional grounds to the 5500A can cause
erroneous capacitance outputs. To overcome a noise problem, increase the
meter’s signal current by increasing the voltage or frequency.