Rockwell Automation Publication 1441-UM001B-EN-P - September 2012 145
Collecting and Reviewing Data Chapter 5
Collect a Time Waveform Measurement
Time waveform plots display a short time sample of a raw vibration signal with
vibration amplitude plotted over the time scale. Time waveform data appears on a
plot similar to the spectrum display screen.
Follow these steps to collect a time waveform measurement.
1. Attach the transducer to the correct location.
2. From the Data Collection screen, press Enter to begin ranging the
measurement.
• If you set Auto Advance to On in the Instrument Configuration screen,
the Dynamix 2500 data collector automatically goes to the next point in
the list after if finishes collecting the time waveform measurement.
• If you set Auto Advance to Off then the Time Waveform Measurement
screen appears.
• Use the Left and Right arrow keys to move the frequency and amplitude
cursor.
• Press the +/- key to expand and compress the time waveform spectrum
plot.
• Press the H key to display the harmonic cursors.
• Press the P key while the harmonic cursors are displayed to move the cursor
to the next significant peak.
See Review Data on page 164
for more information on cursor options.
3. When finished viewing the time waveform, press Enter to continue to the
next point.
If you previously collected a magnitude measurement for the
point, the time waveform measurement starts automatically
after you press Enter to accept the magnitude reading.
If you set Auto Store to On in the Configuration screen on the
data collector, you do not have to press Enter.
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