Fluke 9100 User Handbook Manual page 128

Final Width = 215mm
The equation yielding the actual amplitude uses the term Cos (Ø + Ø
the term Cos (Ø). These have to be combined to yield a percentage error.
Amplitude uncertainty
The Total Power Uncertainty is therefore the rss of the individual contributions :
Example 2:
Calibrator Output 100V, 3A (at 400Hz) Power Factor 0.5 (Ø = 60 ).
1. Voltage Amplitude Uncertainty (From Section 7.4.1)
100V Specification :
2. Current Amplitude Uncertainty (From Section 7.19.7)
3A Specification :
7-32 Section 7: Model 9100: Specifications
). The equation yielding the error free amplitude uses
ERROR
= 100 x 1 – Cos (Ø + Ø )
ERROR
Cos Ø
= 100 x 1 – Cos (0 + 0.15)
Cos 0
= 100 x 1 – 0.999996573
1
= 0.0003427%
2 2
= (0.0463) + (0.096) +
= 0.107%
= 0.04%Rdg + 6.3mV(Floor)
= 0.04% + (6.3mV/100V) x 100
= 0.04% + 0.0063%
= 0.0463%
= 0.08%Rdg + 480 A(Floor)
= 0.08% + (480 A/3A) x 100
= 0.08% + 0.016%
= 0.096%
2
(0.0003427)