Hioki PQ3100 - Frequency Cycle Measurement Specifications; RMS Voltage Refreshed Each Half-Cycle Specifications; RMS Current Refreshed Each Half-Cycle Specifications

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Input Specications/Output Specications/Measurement Specications
5. Frequency cycle measurement specications Freq_wav
Measurement method Reciprocal method
Frequency calculated from the reciprocal of the accumulated time over a 1-cycle time
on U1 (reference channel)
Displayed items Frequency obtained over a 1-cycle time, maximum deviation between event IN and
event OUT
Measurement range 70.000 Hz
Measurement accuracy ±0.200 Hz or less (at an input of between 50 V and 1100 V)
Event threshold Specied in deviation, 0.1 Hz to 9.9 Hz, 0.1 Hz increments
Event IN Start time when the waveform exceeds the positive threshold value or falls below the
negative threshold value
Event OUT Start time when the waveform falls below the value calculated by subtracting 0.1
Hz from the positive threshold value in the negative direction or exceeds the one
calculated by adding 0.1 Hz to the negative threshold value in the positive direction.
Frequency hysteresis corresponds to 0.1 Hz.
Multiple-phase system
treatment
None
Saved waveforms Event waveforms
6. RMS voltage refreshed each half-cycle measurement specications Urms1/2
Measurement method RMS voltage calculated using data obtained over a 1-cycle time refreshed each half-
cycle
Line voltage is used for 3-phase 3-wire (3P3W3M) wiring, while phase voltage is used
for 3-phase 4-wire wiring.
Displayed items RMS voltage refreshed each half-cycle
Measurement range 1000.0 V
Measurement accuracy During 10 V to 660 V input: ±0.3% of declared voltage (at a declared input voltage of
100 V or more, but at an input of 10% to 150% for the declared input voltage)
Other than above: ±0.2% rdg.±0.1% f.s.
7. RMS current refreshed each half-cycle measurement specications Irms1/2
Measurement method RMS current calculated using data obtained over a 1-cycle time refreshed each half-
cycle (synchronized with voltage of same channel).
Displayed items RMS current refreshed each half-cycle
Measurement range Depends on the current sensor in use
Measurement accuracy ± 0.2% rdg. ± 0.1% f.s. + (current sensor accuracy)
(Note: While using 2000 A range of Model CT7742, f.s. tolerance should be 2.5 times
the value)
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Specications