Orbit Plot

 

Prerequisites

Mount two displacement probes radially 90 degrees apart. Displacement probes are the preferred sensor, and units should be displacement.

Overview

Orbit Plot displays the movement of the shaft centerline for orbit analysis on sleeve bearings. Orbit Plot requires two or four channels and the turning speed. If you use a tachometer, the signal is recorded automatically. If the analyzer does not detect a tachometer signal, enter a turning speed.

Note: This measurement is not available on single-channel analyzers. For orbit plots, the analyzer uses the lowest input channel for the X axis and the next input for the Y axis. For a two-channel orbit using inputs A and C, A =X and C= Y. If you use inputs B and D, B=X and D=Y. For a four-channel dual orbit, A=X1, B=Y1, C=X2, and D=Y2. A and B are used for the first orbit, and C and D are used for the second orbit.

Procedure

  1. Create a job.
  2. From the Analyze main menu, press F7 More Experts > F10 Orbit Plot.
  3. Press Start or Enter to collect the data.
  4. Enter the shaft turning speed.
  5. Press Enter.
  6. Press Stop to view the plot.
  7. Press F9 Store Data to save the data to a route or a job, or press F8 Start to redo the measurement.