5.3 Measurement specifications
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Measurement types Rectifiers: AC+DC, AC+DC Umn
Current: Displays the result of integrating current RMS value data (display values) once
every display update interval (approx. 200 ms) as an integrated value.
Active power: Displays the result of integrating active power values by polarity calculat-
ed once every cycle for the selected synchronization source as integrated values.
Rectifier: DC
Displays the result of integrating instantaneous data obtained by sampling both current
and active power by polarity as integrated values (these values are not integrated val-
ues for the DC component when active power contains both DC and AC components)
Integration time 1 min. to 10,000 hr., settable in 1 min. blocks
Default value: 10,000 hr. (0000.00 display)
Integration time accuracy ±100 ppm ±1 dgt. (0°C to 40°C)
Integration measurement
accuracy
(Current or active power measurement accuracy) + (±0.01% rdg. ±1 dgt.)
Effective measuring range Until PEAK OVER U or PEAK OVER I occurs
Display resolution 999999 (6 digits + decimal point)
Peak exceeded warning If a PEAK OVER U or PEAK OVER I event occurs during integration operation, the unit
(Ah, Ah+, Ah-, Wh, Wh+, Wh-) will flash.
Invalid data display Displays [- - - - -] when using the AC or FND rectifier.
Integration status display During integration operation RUN lamp lit up (during external control operation, EXT
lamp lit up)
When stopped RUN lamp flashing (during external control operation,
EXT lamp lit up)
Integrated value reset RUN lamp off (during external control operation, EXT
lamp off)
Functions Stopping integration based on integration time setting (timer)
Stopping/starting integration and resetting integrated values based on external control
Displaying the integration elapsed time (displayed as TIME on panel display)
Additional integration by repeatedly starting/stopping integration
Backing up integrated values and the integration elapsed time during power outages
Stopping integration when power returns
External control Input signal level: 0 to 5 V (high-speed CMOS level) or shorted [Lo]/open [Hi]
Functions External control signal External control terminal
Start Hi → Lo
START/STOP
Stop Lo → Hi
Reset Lo interval of at least 200 ms RESET
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