Keysight Technologies E4417A

D Measuremet Uncertainty Analysis - Instrument Accuracy Test
166 Keysight E4416A/E4417A Power Meters Service Guide
Worst case error on 0.1 V range:
Error = ((9 ppm × 100 mV) + (3 ppm × 100 mV)) + (6 ppm × 100 mV) + 5((0.15 ppm
× 100 mV) + 100 mV))
= 2.375 μV
Percentage Error = 0.002375%
Worst case error on 1V range
Error = ((8 ppm × 1.0 V) + (0.3 ppm × 1.0 V)) + (1 ppm × 1.0 V) + 5((0.15 ppm × 1.0
V) + (0.1 ppm × 1.0 V))
= 10.55 μV
Percentage Error = 0.001055%
Voltage Error Distribution Standard Uncertainty
2.375
μV
Rectangular
1.371 μV
Voltage Error Distribution Standard Uncertainty
10.55
μV
Rectangular
6.09 μV