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3.2 Input, Output, and Measurement Specifications
Items involved in EN 61557-5
Measurement waveform Sinusoidal wave (with a distortion factor of 5% or less)
Effect of positioning (E
Effect of supply voltage
(E
)
2
Effects of temperature
(E
)
3
Series disturbance
voltage (E
)
4
Fiducial resistance 100 Ω
Allowable ground
potential
Effects of resistance
of the auxiliary earth
electrodes (E
)
5
Effects of system
frequency (E
)
7
Effects of system
voltage (E
)
8
Operation uncertainty
Guaranteed
operating-uncertainty
range
) Accuracy × 2.0
1
Accuracy × 0.5 and within the accuracy specifications
Accuracy × 1.0 (18°C to 28°C),
Accuracy × (1＋0.1/°C) (-10°C to 18°C, 28°C to 50°C)
16 2/3 Hz,
50 Hz, 60 Hz
DC
400 Hz
3 V rms (Direct current or sinusoidal wave)
Not applicable
Not applicable
Not applicable
±30% rdg
3.00 Ω to 1600 Ω
HIOKI FT6380B983-00
0 V to 3 V
Accuracy × 1.0
0 V to 3 V
Accuracy × 1.0
0 V to 3 V
Accuracy × 1.0
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