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PQMII POWER QUALITY METER – INSTRUCTION MANUAL
CHAPTER 4: SOFTWARE
parameter. EnerVista PQMII Setup Software then takes this data and performs a FFT (Fast
Fourier Transform) to extract the harmonic information. The harmonic analysis feature is
implemented into EnerVista PQMII Setup Software as shown below.
Z
Select the
Actual > Power Analysis > Harmonic Analysis >
Harmonic Spectrum
menu item.
The EnerVista PQMII Setup Software can display the Harmonic
Analysis Spectrum window including the harmonic spectrum up to and
including the 62nd harmonic.
Z
Enter the trigger parameter for the
Select Trigger
setting.
Z
Click the
Select
button for the
Trigger
setting.
The Waveform capture window will appear.
Z
To display the harmonic spectrum, click the Harmonics button (
)
on the top of the screen.
FIGURE 4–3: Harmonic Spectrum Display
The window includes details of the currently selected harmonic and other
harmonic analysis-related data (for example, THD, K Factor, etc.).
Z
Select
Read Last Trigger From Device
to load previous acquired
spectra from the PQMII.
4.5.3
Trace Memory
The trace memory feature allows the PQMII to be setup to trigger on various conditions.
The trace memory can record maximum of 36 cycles of data (16 samples per cycle) for all
voltage and current inputs simultaneously. A Total Trace Triggers Counter has been
implemented in the PQMII Memory Map at Register 0x0B83. This register will keep a
Summary of Contents for PQM II
Page 8: ...TOC VI PQMII POWER QUALITY METER INSTRUCTION MANUAL TABLE OF CONTENTS ...
Page 58: ...3 10 PQMII POWER QUALITY METER INSTRUCTION MANUAL CHAPTER 3 OPERATION ...
Page 84: ...4 26 PQMII POWER QUALITY METER INSTRUCTION MANUAL CHAPTER 4 SOFTWARE ...
Page 170: ...6 32 PQMII POWER QUALITY METER INSTRUCTION MANUAL CHAPTER 6 MONITORING ...
Page 196: ...7 26 PQMII POWER QUALITY METER INSTRUCTION MANUAL CHAPTER 7 APPLICATIONS ...
Page 198: ...8 2 PQMII POWER QUALITY METER INSTRUCTION MANUAL CHAPTER 8 WARRANTY ...
Page 208: ...A 10 PQMII POWER QUALITY METER INSTRUCTION MANUAL APPENDIX A ...
Page 216: ...B VIII PQM POWER QUALITY METER INSTRUCTION MANUAL CHAPTER B INDEX ...