Specifications
10
3.3 GENERATOR AND BUS VOLTAGE / FREQUENCY SENSING
Measurement type True RMS conversion
Sample Rate 5KHz or better
Harmonics Up to 10
or better
Input Impedance
300K Ω ph-N
Phase to Neutral 15V
(minimum required for sensing frequency
)
to 333V AC
(absolute maximum)
Suitable for 110V to 277V nominal
(±20% for under/overvoltage detection)
Phase to Phase 26V
(minimum required for sensing frequency
)
to 576V AC
(absolute maximum)
Suitable for 190V ph-ph to 479V ph-ph nominal
(±20% for
under/overvoltage detection)
Common mode offset from
Earth
100V AC (max)
Resolution 1V AC phase to neutral
2V AC phase to phase
Accuracy ±1% of full scale phase to neutral (±3.33V ph-N)
±2% of full scale phase to phase (±11.52V ph-ph)
Minimum frequency 3.5Hz
Maximum frequency 75.0Hz
Frequency resolution 0.1Hz
Frequency accuracy ±0.2Hz
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