228
U7005 15MS/s Input Unit
Measurement accuracy for active voltage, current, power, and power phase angle
Accuracy
±
[(% of reading) + (% of range)]
Voltage (U) Current (I)
DC 0.02% + 0.03% 0.02% + 0.03%
0.1 Hz ≤ f < 30 Hz 0.1% + 0.1% 0.1% + 0.1%
30 Hz ≤ f < 45 Hz 0.1% + 0.1% 0.1% + 0.1%
45 Hz ≤ f ≤ 440 Hz 0.01% + 0.02% 0.01% + 0.02%
440 Hz < f ≤ 1 kHz 0.02% + 0.04% 0.02% + 0.04%
1 kHz < f ≤ 10 kHz 0.05% + 0.05% 0.05% + 0.05%
10 kHz < f ≤ 50 kHz 0.1% + 0.05% 0.1% + 0.05%
50 kHz < f ≤ 100 kHz 0.01
×
f % + 0.1% 0.01
×
f % + 0.1%
100 kHz < f ≤ 500 kHz 0.01
×
f % + 0.2% 0.01
×
f % + 0.2%
500 kHz < f ≤ 1 MHz 0.01
×
f % + 0.3% 0.01
×
f % + 0.3%
Frequency band 5 MHz (−3 dB typical) 5 MHz (−3 dB typical)
Accuracy
±
[(% of reading) + (% of range)] Degree
Active power (P)
Power phase angle (
φ
)
(Phase dierence)
DC 0.02% + 0.03% —
0.1 Hz ≤ f < 30 Hz 0.1% + 0.2%
±
0.05
°
30 Hz ≤ f < 45 Hz 0.1% + 0.1%
±
0.05
°
45 Hz ≤ f ≤ 440 Hz 0.01% + 0.02%
±
0.05
°
440 Hz < f ≤ 1 kHz 0.02% + 0.04%
±
0.05
°
1 kHz < f ≤ 10 kHz 0.05% + 0.05%
±
0.12
°
10 kHz < f ≤ 50 kHz 0.15% + 0.05%
±
0.2
°
50 kHz < f ≤ 100 kHz 0.01
×
f % + 0.2%
±
0.4
°
100 kHz < f ≤ 500 kHz 0.01
×
f % + 0.3%
±
(0.01
×
f )
°
500 kHz < f ≤ 1 MHz 0.01
×
f % + 0.5%
±
(0.01
×
f )
°
• In the expressions listed above, the unit of f is kilohertz.
• DC values of voltage and current are specied by Udc and Idc.
Frequencies other than DC are specied by U rms and I rms.
• When U or I is selected as the synchronization source, accuracy is specied for source input of at least 5% of
range.
• The phase dierence is specied by a power factor of zero during 100% input.
• Add the current sensor accuracy to the accuracy gures listed above for current, active power, and power
phase angle.
• When a voltage has a frequency between 0.1 Hz (inclusive) and 10 Hz (exclusive), the accuracy gures for
voltage, current, active power, and power phase angle are values for reference purposes.
• When a voltage of over 220 V has a frequency between 10 Hz (inclusive) and 16 Hz (exclusive), the accuracy
gures for voltage, active power, and power phase angle are values for reference purposes.
• When a voltage of over 750 V has a frequency between 30 kHz (inclusive) and 100 kHz (exclusive), the
accuracy gures for voltage, active power, and power phase angle are values for reference purposes.
• When a voltage of over (22000 / f [kilohertz]) volts has a frequency between 100 kHz (inclusive) and 1 MHz
(exclusive), the accuracy gures for voltage, active power, and power phase angle are values for reference
purposes.
• For the 6 V range, add
±
0.02% of range to the accuracy of voltage and active power.
• Add
±
0.02% of range to the accuracy of the current and active power for the 1/10, 1/25, and 1/50 range of the
current sensor rating.
• The valid measurement range of the 9272-05 is between 0.5 % of full scale and 100% of full scale.
• When the input magnitude is between 100% of range (exclusive) and 110% of range (inclusive), multiply the
range error by 1.1 .
• Add
±
0.01% of range per degree centigrade to the voltage DC accuracy of the voltage, current, and active
power if a change in temperature reaches or exceeds
±
1
°
C after zero adjustment.
• If a voltage is over 600 V, add the following values to the power phase angle accuracy:
0.1 Hz < f ≤ 500 Hz:
±
0.1
°
500 Hz < f ≤ 5 kHz:
±
0.3
°
5 kHz < f ≤ 20 kHz:
±
0.5
°
20 kHz < f ≤ 200 kHz:
±
1
°
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