Chapter 7 Monitoring Meters Viewing Real-time Waveforms
124 PM135 Powermeter Series
See Working with Tables in Chapter 9 for more information on working
with tables.
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.
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.
To Next Page
Loading...
Need help?
General
