Rockwell Automation 1441-PEN25-Z Enpac 2500 Data Collector - Manual (Page 173)

Rockwell Automation Publication GMSI10-UM002D-EN-E - August 2012 173
Multi-channel Measurements Chapter 6
The cursor values appear above the signature data.
Cross Channel Phase
Measurements The Emonitor software and the Enpac 2500 support cross channel phase
measurement definitions. This topic lists the unique characteristics of the Enpac
2500 that you may need to know when setting up and collecting cross channel
phase data:
• Set up a location in the Location pane for the two input channels.
• Set the Lo. Channel for the first location to 1.
• Set the Lo. Channel for the second location to 2.
• Set up a Collection Specification with Transducer set to Accelerometer.
• Check the Also collect phase data checkbox and set Channel phase to Dual
Channel.
• Set up a magnitude measurement definition for both locations.
Phase Tables
Phase is displayed as a table of magnitude/phase pairs of up to 8 orders. In a dual
channel display, the top trace displays the first channel and the lower trace is the
second. Boost values and cursor moves are applied to both traces, whether
displayed or hidden.
Use the up/down arrows to scroll through the phase table values. When you are
finished collecting and viewing the cross channel phase measurement data, press
Enter to store your data.
The measurement definition is the same for both channels.
IMPORTANT The Y-axis and X-axis are synchronized, which means the cursors are in the
same position on each trace in the Signature Data screen. The X and Y axis
will move together, and magnify as the display is expanded.