Rockwell Automation 1441-PEN25-Z Enpac 2500 Data Collector - Manual (Page 136)

136 Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012
Chapter 4 Collecting and Reviewing Data
• If Fast Averaging is set to Off, the data collector displays the spectrum
while collecting the averages. The number of averages appears in the
middle of the screen.
3. Press 0 (Shift) to display more functions and press F4 (View).
4. Press Enter to continue to the next point.
See Review Data on page 153 for more information about the Signature
Spectrum.
Exceptions
Two exceptions exist for combining measurement definitions. The Emonitor
software and the Enpac 2500 cannot combine magnitude + phase measurements
with any other measurements. Nor can they combine manual entry
measurements with any other measurements. Both types remain as individual
measurements when loaded into the Enpac 2500.
The Emonitor software can calculate an overall value from a spectrum
measurement. Under some conditions, this value may not be the same as the
magnitude measurement for the same location. These are the common uses:
• The measurement filter is not the same for the magnitude and the
spectrum measurement definitions. In this case the two measurement
definitions are measuring different frequency ranges.
• The magnitude readings taken by the Enpac 2500 are broadband readings
and are not based on the spectrum data.