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3.2.7 Power factor
It displays power factor of the load.
・Press <ITEM>key to display the loads' power factor.
Sample
Lagging phase
・How to calculate power factor
Eco-POWER METER displays power factor by calculating as below.
Single-phase two-wire
Single-phase three-wire
Three-phase four -wire
Three-phase three -wire
3.2.8 Frequency
It displays frequency.
・Press <ITEM>key to display the frequency.
3.2.9 Hour meter
It displays ON-time and OFF-time of the load.
・Press <ITEM> key to display the load ON-time or load OFF-time measured by CT1.
・Press <SHIFT> key to change the load ON-time to load OFF-time.
Sample
Blinking the decimal point during
＊When load current is under the setting current for time measurement (HM-A), it measures as
OFF-time. When load current is exceeded to the setting current for time measurement (HM-A), it
measures as ON-time. Current for time measurement (HM-A) is set to under cutoff current (CUTA),
all current is measured as OFF-time.
*only AKW1111
PF＝
PF＝
PF＝
*only AKW1111
Sample
Frequency (Hz)
ON-time (h)
measurement of ON-time.
Leading phase
Instantaneous electric power
Voltage ｘ Current
Instantaneous electric power
Average of
a ｘ
each phase V
Instantaneous electric power
Average of
√
3
ｘ
each phase V
OFF-time (h)
Blinking the decimal point during
measurement of OFF-time.
8
KW1M Eco－POWER METER
Average of
ｘ
each phase A
Average of
ｘ
each phase A
1P3W: a=2
3P4W: a=3
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