Capacitance Accuracy - Fluke 5500A Operator's Manual

5500A
Operator Manual

7-15. Capacitance Accuracy

The Capacitance Accuracy test verifies the accuracy of the synthesized capacitance
output at the 5500A Calibrator front panel AUX terminals. Use the Fluke 6304C LCR
Meter with PM9540/BAN output cable. This cable eliminates the need for a four-wire
connection.
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 either the frequency (which will
decrease the capacitance) or the voltage level.
Nominal value (nF)
0.35 nF
0.48 nF
0.6 nF
1 nF
1.2 nF
3 nF
3.3 nF
10.9 nF
12 nF
30 nF
33 nF
109 nF
120 nF
300 nF
330 nF
1.09 F
1.2 F
3 F
3.3 F
10.9 F
12 F
30 F
33 F
109 F
120 F
300 F
330 F
1.1 mF
7-16
Note
LCR Stimulus
Frequency (Hz)
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
1 kHz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
100 Hz
50 Hz
50 Hz
Measured Deviation
Value (F) %
90-Day Spec.
(%)
3.23%
2.46%
2.05%
1.38%
1.22%
0.71%
0.68%
0.47%
1.03%
0.52%
0.49%
0.28%
0.44%
0.29%
0.49%
0.28%
0.51%
0.36%
0.56%
0.35%
0.55%
0.40%
0.68%
0.47%
0.75%
0.60%
1.09%
1.03%