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18.1 Product Specifications
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■
Measurement range
Determined by the voltage × current range combination (Refer
to Table 1.)
Measurement accuracy
±0.1% rdg. ±0.2%f.s. + clamp on sensor specifications (power
factor = 1)
Effect of power factor
±0.1% rdg. (45 Hz to 66 Hz, power factor = 0.5)
Polarity display: For
consumption
When the consumption: unsigned; when the for regeneration: "-"
■ Reactive power measurement
Measurement range
Determined by the voltage × current range combination (Refer
to Table 1.)
When not using the reactive
power meter method
Reactive power is calculated on the basis of the voltage, current
and active power measurements. (Refer to Table 2.)
When using the reactive power meter method: Reactive power is
measured directly by the reactive power meter method.
Measurement accuracy
When not using the reactive power meter method: ±1 dgt. for
each calculation from measured values
When using the reactive power
meter method
±0.1% rdg. ±0.2%f.s. + clamp on sensor specifications (reactive
power factor = 1)
Effect of reactive power factor
±1.0% rdg. (45 Hz to 66 Hz, reactive power factor = 0.5, using
the reactive power meter method)
Polarity display
When the current lags the voltage: unsigned; when the current
leads the voltage: "-"
■ Apparent power measurement
Measurement range
Determined by the voltage × current range combination (Refer
to Table 1.)
Measurement accuracy
±1 dgt. for each calculation from measured values
Polarity display
No polarity
■ Power integration measurement
Measurement range
Active power integration: ±0.000 Wh to ±999999 MWh
Reactive power integration: ±0.000 varh to ±999999 Mvarh
Apparent power integration: 0.000 VAh to 999999 MVAh
Integrated accuracy
Accuracy of each active power, reactive power and apparent
power measurement ±1 dgt.
Timer setting range
10 seconds to 1000 hours (settable in 10-second intervals)
Timer accuracy
±25 ppm ±1 s (25℃)(77F)
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