3.2 Input, Output, and Measurement Specifications
61
Items involved in EN
61557-13
Fiducial current
5 mA
Effect of positioning (E
1
) Accuracy × 0.3
Effect of supply voltage
(E
2
)
Accuracy × 0.3 and within the accuracy specifications
Effects of temperature
(E
3
)
Accuracy × 0.5 (18°C to 28°C),
Accuracy × (1
＋
0.05/°C) × 0.5 (0°C to 18°C, 28°C to 45°C)
Effects of distortion
waveform (E
9
)
Accuracy × 0.3
Effects of external
magnetic field (E
11
)
0.15 mA (15 Hz to 400 Hz, in an external magnetic field of
10 A/m)
0.45 mA (15 Hz to 400 Hz, in an external magnetic field of
30 A/m)
Effects of load current
(E
12
)
0.45 mA (60 A AC, 50 Hz/60 Hz)
Effects of common mode
voltage (E
13
)
0.10 mA
Effects of frequency
(E
14
)
Accuracy × 0.3 (Specified in the accuracy list)
Reproducibility (E
15
)
Accuracy × 0.3
Operation uncertainty
and
Guaranteed
operating-uncertainty
range
Class 3 10 A/m:
Less than ±15% rdg
(measurement current: 5.00 mA to 10.00 mA)
Less than ±10% rdg
(measurement current: 10.01 mA to 60.0 A)
Class 2 30 A/m:
Less than ±20% rdg
(measurement current: 5.00 mA to 10.00 mA)
Less than ±12.5% rdg
(measurement current: 10.01 mA to 60.0 A)
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