Hioki PW3198, Manual

Page: 11 / 16

11
Measurement Specifications
(For specifications when measuring 400Hz circuits, please inquire with your HIOKI distributor.)
Transient overvoltage
TRANSIENT EVENT
Display items For single transient incidents and continuous transient incidents
Transient voltage value, Transient width
For continuous transient incidents
Transient period (Period from transient IN to transient OUT)
Max. transient voltage value (Max. peak value during the period)
Transient count during period
Measurement method Detected from waveform obtained by eliminating the fundamental component (50/60/400 Hz) from the sampled waveform
Sampling frequency 2MHz
Measurement range, resolution ±6.0000kVpeak, 0.0001kV
Measurement bandwidth
5 kHz (-3dB) to 700 kHz (-3dB)
Min. detection width 0.5 μs
Measurement accuracy ±5.0% rdg.±1.0%f.s.
RMS voltage, RMS current
TIME PLOT EVENT
Display items RMS voltage : RMS voltage for each channel and AVG (average) RMS voltage for multiple channels
RMS current : RMS current for each channel and AVG (average) RMS current for multiple channels
Measurement method AC+DC True RMS type (Current DC value: when using compatible sensor)
RMS value calculated from 10 cycles (50 Hz) or 12 cycles (60 Hz)
Sampling frequency 200kHz
Measurement range, resolution RMS voltage : 600.00V, 0.01V
RMS current : Based on clamp-on sensor in use; see Input specifications
Measurement accuracy RMS voltage : ±0.1% of nominal voltage (With 1.666% f.s. to 110% f.s. input and a nominal input voltage of at least 100 V)
±0.2%rdg.±0.08%f.s. (With input outside the range of 1.666% f.s. to 110% f.s. or a nominal input voltage of less than 100 V)
RMS current : ±0.2% rdg.±0.1%f.s. + clamp-on sensor accuracy
Voltage waveform peak/ Current waveform peak
TIME PLOT EVENT
Display item Positive peak value and negative peak value
Measurement method Measured every 10 cycles (50 Hz) or 12 cycles (60 Hz)
maximum and minimum points sampled during approx. 200 ms aggregation
Sampling frequency 200kHz
Measurement range, resolution Voltage waveform peak : ±1200.0 Vpeak, 0.1V
Current waveform peak : The quadruple of RMS current measurement range (Based on clamp-on sensor in use; See Input specifications)
RMS voltage/ RMS current refreshed each half-cycle
TIME PLOT EVENT
Measurement method RMS voltage refreshed each half-cycle : True RMS type, RMS voltage values are calculated using sample data for
1 waveform derived by overlapping the voltage waveform every half-cycle
RMS current refreshed each half-cycle : RMS current is calculated using current waveform data sampled every half-cycle
Sampling frequency 200kHz
Measurement range, resolution RMS voltage refreshed each half-cycle : 600.00V, 0.01V
RMS current refreshed each half-cycle : Based on clamp-on sensor in use; see Input specifications
Measurement accuracy RMS voltage refreshed each half-cycle : ±0.2% of nominal voltage (With 1.666% f.s. to 110% f.s. input and a nominal input voltage of at least 100 V)
±0.2%rdg.±0.08%f.s. (With input outside the range of 1.666% f.s. to 110% f.s. or a nominal input voltage of less than 100 V)
RMS current refreshed each half-cycle : ±0.3% rdg.±0.5%f.s. + clamp-on sensor accuracy
Swell/ Dip/ Interruption
FLUCTUATION EVENT
Display item Swell : Swell height, Swell duration
Dip : Dip depth, Dip duration
Interruption : Interruption depth, Interruption duration
Measurement method Swell : A swell is detected when the RMS voltage refreshed each half-cycle exceeds the threshold in the positive direction
Dip : A dip is detected when the RMS voltage refreshed each half-cycle exceeds the threshold in the negative direction
Interruption : An interruption is detected when the RMS voltage refreshed each half-cycle exceeds the threshold in the negative direction
Range and accuracy See RMS voltage refreshed each half-cycle
Frequency cycle
TIME PLOT EVENT
Measurement method Calculated as the reciprocal of the accumulated whole-cycle time during one U1 (reference channel) cycle
Measurement range, resolution 70.000Hz, 0.001Hz
Measurement bandwidth
40.000 to 70.000Hz
Measurement accuracy ±0.200 Hz or less (for input from 10% f.s. to 110% f.s.)
Inrush current
FLUCTUATION EVENT
Display item Maximum current of RMS current refreshed each 1/2 cycle
Measurement method Detected when the RMS current refreshed each 1/2 cycle exceeds the threshold in a positive direction
Range and accuracy See RMS current refreshed each half-cycle
Voltage waveform comparison
EVENT
Display item Event detection only
Measurement method A judgment area is automatically generated from the previous 200 ms aggregation waveform, and events are generated based on
a comparison with the judgment waveform. Waveform judgments are performed once for each 200 ms aggregation.
Comparison window width 10 cycles (50 Hz), 12 cycles (60 Hz)
No. of window points 4096 points synchronized with harmonic calculations
TIME PLOT : The MAX/MIN/AVG of each recording interval for each parameter are recorded.
EVENT : When a power anomaly occurs, approx. 200ms instantaneous waveform is recorded.
TRANSIENT : When a transient overvoltage is detected, the 2ms instantaneous waveforms before and after the occurrence (total 4ms) are recorded.
FLUCTUATION : The RMS fluctuation 0.5s before and 29.5s after an event has occurred are recorded.
HIGH-ORDER HARM : When a high order harmonic event occurs, the 40ms instantaneous waveform is recorded.
Frequency
TIME PLOT EVENT
Measurement method
Calculated as the reciprocal of the accumulated whole-cycle time during approx. 200ms period of 10 or 12 U1 (reference channel) cycles
Measurement range, resolution 70.000Hz, 0.001Hz
Measurement bandwidth 40.000 to 70.000Hz
Measurement accuracy ±0.020 Hz or less
10-sec frequency
TIME PLOT
Measurement method Calculated as the reciprocal of the accumulated whole-cycle time during the specified 10s period for U1 (reference channel) as per IEC61000-4-30
Measurement range, resolution 70.000Hz, 0.001Hz
Measurement bandwidth
40.000 to 70.000Hz
Measurement accuracy ±0.010 Hz or less