Fluke 5500A, Service Manual

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Calibration and Verification
Performance Verification Tests
3
3-21
3-27. DC Voltage Amplitude Accuracy (NORMAL)
The DC Voltage Amplitude Accuracy test verifies the accuracy of dc voltage at the
5500A Calibrator front panel NORMAL terminals. Table 3-13 shows the test points.
Table 3-13. DC Voltage Accuracy Test
Range Nominal Value Measured Value
(NORMAL)
Deviation % 90-Day Spec. (
µ
V or %)
330 mV 0.0000 mV 3.0
µ
V
330 mV 329 mV 0.0059%
330 mV -329 mV 0.0059%
3.3 V 0.000 mV 5
µ
V
3.3 V 3.29 V 0.0042%
3.3 V -3.29 V 0.0042%
30 V 0.00 mV 50
µ
V
30 V 32.9 V 0.0042%
30 V -32.9 V 0.0042%
300 V 50 V 0.0055%
300 V 329 V 0.0047%
300 V -50 V 0.0055%
300 V -329 V 0.0047%
1000 V 334 V 0.0049%
1000 V 900 V 0.0047%
1000 V -334 V 0.0049%
1000 V -900 V 0.0047%
3-28. DC Voltage Amplitude Accuracy (AUX)
The DC Voltage Amplitude Accuracy test verifies the accuracy of dc voltage at the
5500A Calibrator front panel AUX terminals in the presence of a lower voltage at the
NORMAL terminals. Table 3-14 shows the test points.
Table 3-14. DC Voltage Amplitude Accuracy Test
Nominal Value
(NORMAL)
Nominal Value
(AUX)
Measured Value (V)
(AUX)
Deviation % 90-Day Spec.
(% or mV)
3 V 0 mV 0.350 mV
3 V 329 mV 0.1365%
3 V -329 mV 0.1365%
3 V 0.33 V 0.1361%
3 V 3.29 V 0.0407%
3 V -3.29 V 0.0407%