41
IM CW500-02EN
Measurement Specifications
Number of Analysis Data Values of Each Measurement Item
Items whose measurement time period is 200 ms (50 Hz: 10 cycles, 60 Hz: 12
cycles) and calculated using 8192 points of data
Frequency, rms voltage, rms current, active power, apparent power, reactive
power, power factor, phase advance capacitor
Items whose measurement time period is 200 ms (50 Hz: 10 cycles, 60 Hz: 12
cycles) and calculated using 2048 points of data
Voltage unbalance factor, current unbalance factor, rms harmonic voltage
(percentage content), rms harmonic current (percentage content), harmonic
reactive power, total harmonic voltage distortion (THDV-F/R), total harmonic
current distortion (THDA-F/R), harmonic voltage phase angle, harmonic current
phase angle, harmonic voltage-current phase difference
Items calculated using about 819 data points for 50 Hz and about 682 data points
for 60 Hz where one measurement period is a single waveform that overlaps
every half a waveform.
Voltage dip, voltage swell, interruption, inrush current
Items whose instantaneous measurements at 40.96 ksps are displayed
Voltage waveform, current waveform, external input voltage
Instantaneous Measurement Items
Frequency f [Hz]
Display digits
4 digits
Accuracy
±2 dgt (40.00 Hz to 70.00 Hz, V1 range 10% to 110%, sine
wave)
Display range
10.00 to 99.99 Hz
Signal source
V
1
(fixed)
10-second average frequency f10 [Hz]
Display digits
4 digits
Measurement
system
Complies with IEC61000-4-30
Accuracy
±2 dgt (40.00 Hz to 70.00 Hz, V1 range 10% to 110%, sine
wave)
Display range
10.00 to 99.99 Hz
Signal source
V
1
(fixed)
Specifications