Measurement Specifications
Parameter, unit Full scale Accuracy, % Range Resolution
@
range
Rdg FS Conditions Front panel display Comm.
Current harmonics,
% I
1
100 1
0.2
FSI
1
×
I
I
1
≥ 10% FSI 0 to 100 0.01 0.01
Harmonic voltage,
V
As for voltage 1 0.2 U
1
≥ 10%
FSV
As for voltage
Harmonic current, A As for current 1 0.2 I
1
≥ 10% FSI As for current
Harmonic kW As for kW 1 0.2 As for kW
Harmonic kvar As for kvar 1 0.2 As for kvar
Harmonic power
factor
As for power factor 2 typical As for power
factor
PT - the external potential transformer ratio
CT, CT primary current - the primary current rating of the external current transformer
FSV - voltage full scale
FSI - current full scale
U
1
- voltage fundamental
I
1
- current fundamental
Vavg =
1
3
(U
L1/L12
+ U
L2/L23
+ U
L3/L31
) Iavg =
1
3
(I
L1
+ I
L2
+ I
L3
)
À @ 10% to 120 % of voltage full scale & 2% to 120 % of current full scale
NOTES
1. Accuracy is expressed as ± (percentage of reading + percentage of full scale) ± 1 digit. This does not include
inaccuracies introduced by the user's potential and current transformers.
2. These specifications assume voltage and current waveforms with THD ≤ 5 % (except harmonic measurements) and
an operating temperature of 20 to 26 °C.
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