Hioki 3197, Instruction Manual

Page: 154 / 200

8.2 Detailed Specifications of Measurement Parameters
146
[Displacement
Power Factor]
DPF
Measurement method
Calculated from phase difference between fundamental
voltage and current waveforms, 200 ms calculation
Measurement range
-0.000 to -1.000 (leading), +0.000 to +1.000 (lagging)
0.0000 to 1.0000 (leading), + 0.0000 to + 1.0000
(lagging)
Measurement accuracy ±1 dgt. of calculation from each measurement value
Polarity indication
No sign for lagging phase (current lags voltage)
Minus sign (–) for leading phase (current leads voltage)
Non-Input display “1.000”(when voltage or current is zero)
[Energy
Consumption]
Measurement
parameter
Active power value: WP+ (consumption), WP- (regener-
ation)
Reactive power value: WQLAG (lagging), WQLEAD
(leading)
Active or reactive power value (selectable)
Measurement method
Cumulative consumption and regeneration are
calculated separately using active power
Cumulative lagging and leading values are calculated
separately using reactive power
Measurement accuracy
±1 dgt. applied to active and reactive power measure-
ment accuracy
Time accuracy ±10 ppm ±1s (@23ºC, 73ºF)
[DEMAND]
Measurement
parameter
Active or reactive power demand (selectable)
Active power demand (3-phase total value)
Pdem+ (consumption only), Pdem (regeneration only)
Reactive power demand (3-phase total value)
QdemLAG (Lagging only), QdemLEAD (Lagging only)
Measurement method
Calculated using active or reactive power within the de-
mand calculation period
Measurement accuracy
±1 dgt. applied to active and reactive power
measurement accuracy
Measurement Parameter