Chapter 7 Monitoring Meters Viewing Real-time Waveforms
PM130 PLUS Powermeter Series_Installation Operation and Manual 130
7.3 Viewing Real-time Waveforms
To retrieve real-time waveforms from your meter:
1. Ensure that the On-line button on the PAS toolbar is checked.
2. Select the device site from the list box on the toolbar.
3. Select RT Waveform Monitor from the Monitor menu or click on the button on the PAS
toolbar.
Use the Poll button for a single-step poll or the Continuous poll button for continuous polling.
To stop continuous polling, click on the Stop button .
The meter provides simultaneous capture of six one-cycle voltage and current AC waveforms at a rate of
64 samples per cycle. To give you a more representative picture, PAS extends the waveforms across the
window up to eight cycles by repeating the captured waveforms.
To select the channels you want to view, click with the right mouse button on the waveform window, select
Channels..., check the channels for the phase you want displayed, and then click OK.
See Working with Graphic Windows in Chapter 9 for more information on working with waveforms.
Retrieved waveforms can be displayed in different views as overlapped or non-overlapped waveforms, as
RMS cycle-by-cycle plot, or as a harmonic spectrum chart or table.
7.3.1 Viewing a Waveform Graph
When you open a new file, PAS shows you a waveform graph with non-overlapped waveforms as shown
in the picture above.
Click on the button on the local toolbar to see overlapped waveforms.
Click on the button for non-overlapped waveforms.
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