10.2 Basic Specifications
192
Accuracy
Values of f in above tables are given in kHz.
Accuracy figures for DC voltage and current are defined for Udc and Idc, while accuracy figures for fre-
quencies other than DC are defined for Urms and Irms.
Accuracy figures for phase difference values are defined for full-scale input with a power factor of zero
and the LPF disabled.
Accuracy figures for voltage, current, and active power values in the frequency range of 0.5 Hz to 10 Hz
are provided as reference values.
Accuracy figures for voltage and active power values in excess of 220 V in the frequency range of
10 Hz to 16 Hz are provided as reference values.
Accuracy figures for voltage and active power values in excess of 750 V in the frequency range of
30 kHz to 100 kHz are provided as reference values.
Accuracy figures for voltage and active power values in excess of (22000/f [kHz]) V in the frequency
range of 100 kHz to 200 kHz are provided as reference values.
Accuracy figures for voltage and active power values in excess of 1000 V are provided as reference val-
ues.
Accuracy figures for phase difference values outside the frequency range of 45 Hz to 66 Hz are provided
as reference values.
For voltages in excess of 600 V, add the following to the phase difference accuracy:
500 Hz < f 5 kHz: ±0.3°
5 kHz < f 20 kHz: ±0.5°
20 kHz < f 200 kHz: ±1°
Add ±20
V to the DC current and active power accuracy (at 2 V f.s.)
Add the current sensor accuracy to the above accuracy figures for current, active power, and phase dif-
ference.
However, the combined accuracy is defined separately for the current measurement options listed be-
low.
Combined accuracy when used with current measurement options PW9100-03 or PW9100-04 (with
PW3390 range as f.s.)
Add ±0.12% f.s. (f.s. = PW3390 range) when using 1 A or 2 A range.
Combined accuracy when used with any of the following current measurement options: special-order
high-accuracy 9709-05, high-accuracy CT6862-05, or high-accuracy CT6863-05 (with PW3390 range
as f.s.)
Apply LPF accuracy definitions to the above accuracy figures when using the LPF.
1. Power Measurement Input Specifications
Voltage (U) Current (I)
DC ±0.05% rdg.±0.07% f.s. ±0.05% rdg.±0.07% f.s.
0.5 Hz f <30 Hz ±0.05% rdg.±0.1% f.s. ±0.05% rdg.±0.1% f.s.
30 Hz f <45 Hz ±0.05% rdg.±0.1% f.s. ±0.05% rdg.±0.1% f.s.
45 Hz f 66 Hz ±0.04% rdg.±0.05% f.s. ±0.04% rdg.±0.05% f.s.
66 Hz < f 1 kHz ±0.1% rdg.±0.1% f.s. ±0.1% rdg.±0.1% f.s.
1 kHz < f 10 kHz ±0.2% rdg.±0.1% f.s. ±0.2% rdg.±0.1% f.s.
10 kHz < f 50 kHz ±0.3% rdg.±0.2% f.s. ±0.3% rdg.±0.2% f.s.
50 kHz < f 100 kHz ±1.0% rdg.±0.3% f.s. ±1.0% rdg.±0.3% f.s.
100 kHz < f 200 kHz ±20% f.s. ±20% f.s.
Active power (P) Phase difference
DC ±0.05% rdg.±0.07% f.s.
0.5 Hz f <30 Hz ±0.05% rdg.±0.1% f.s. ±0.08°
30 Hz f <45 Hz ±0.05% rdg.±0.1% f.s. ±0.08°
45 Hz f 66 Hz ±0.04% rdg.±0.05% f.s. ±0.08°
66 Hz < f 1 kHz ±0.1% rdg.±0.1% f.s. ±0.08°
1 kHz < f 10 kHz ±0.2% rdg.±0.1% f.s. ±(0.06*f+0.02)°
10 kHz < f 50 kHz ±0.4% rdg.±0.3% f.s. ±0.62°
50 kHz < f 100 kHz ±1.5% rdg.±0.5% f.s. ±(0.005*f+0.4)°
100 kHz < f 200 kHz ±20% f.s. ±(0.022*f-1.3)°
Current (I) Active power (P)
DC ±0.07% rdg.±0.077% f.s. ±0.07% rdg.±0.077% f.s.
45 Hz f 66 Hz ±0.06% rdg.±0.055% f.s. ±0.06% rdg.±0.055% f.s.
Current (I) Active power (P)
DC ±0.095% rdg.±0.08% f.s. ±0.095% rdg.±0.08% f.s.
45 Hz f 66 Hz ±0.085% rdg.±0.06% f.s. ±0.085 rdg.±0.06% f.s.
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