Fluke 5520A - Phase Specifications

Manual Supplement 5520A Operator
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Phase Specifications
1-Year Absolute Uncertainty, tcal ±5 °C, (Δ Φ °)
10 to
65 Hz
65 to
500 Hz
500 Hz to
1 kHz
1 to
5 kHz
5 to
10 kHz
10 to
30 kHz
0.10 ° 0.25 ° 0.5 ° 2.5 ° 5 ° 10 °
Note
See Power and Dual Output Limit Specifications for applicable outputs.
Phase (Φ)
Watts
Phase (Φ)
VARs
PF
Power Uncertainty Adder due to Phase Error
10 to
65 Hz
65 to
500 Hz
500 Hz to
1 kHz
1 to
5 kHz
5 to
10 kHz
10 to
30 kHz
0 ° 90 °
1.000 0.00 % 0.00 % 0.00 % 0.10 % 0.38 % 1.52 %
10 ° 80 °
0.985 0.03 % 0.08 % 0.16 % 0.86 % 1.92 % 4.58 %
20 ° 70 °
0.940 0.06 % 0.16 % 0.32 % 1.68 % 3.55 % 7.84 %
30 ° 60 °
0.866 0.10 % 0.25 % 0.51 % 2.61 % 5.41 % 11.54 %
40 ° 50 °
0.766 0.15 % 0.37 % 0.74 % 3.76 % 7.69 % 16.09 %
50 ° 40 °
0.643 0.21 % 0.52 % 1.04 % 5.29 % 10.77 % 22.21 %
60 ° 30 °
0.500 0.30 % 0.76 % 1.52 % 7.65 % 15.48 % 31.60 %
70 ° 20 °
0.342 0.48 % 1.20 % 2.40 % 12.08 % 24.33 % 49.23 %
80 ° 10 °
0.174 0.99 % 2.48 % 4.95 % 24.83 % 49.81 % 100.00 %
90 ° 0 °
0.000
⎯ ⎯ ⎯ ⎯ ⎯ ⎯
To calculate exact ac Watts power adders due to phase uncertainty for values not shown, use the following formula:
()
()
)
)(
1(100%
Φ
ΔΦ+Φ
−=
Cos
Cos
Adder
For example: At 60 Hz, for a PF of .9205 (Φ = 23) and a phase uncertainty of
ΔΦ
= 0.10, the ac Watts power adder is:
()
()
%074.0)
23
)10.(23
1(100% =
+
−=
Cos
Cos
Adder