Cross Channel Amplitude/Phase


Set up the sensors. To distinguish between imbalance and resonance, place one sensor in the vertical direction and the other in the horizontal direction at the bearing. To distinguish between imbalance and misalignment, place the sensors in the same direction on either side of the coupling.


Cross Channel Amplitude/Phase determines the phase shift between two sensor locations. This measurement is useful to determine the phase shift between two sensor locations at a particular frequency. You can also use this measurement to distinguish between imbalance and misalignment or between imbalance and resonance by measuring the cross channel-phase at running speed.

Note: This measurement is not available on single-channel analyzers.
Note: If you marked a peak in a spectrum before selecting Cross Channel Amplitude/Phase, the phase is determined for the marked frequency. If you did not mark a peak, enter the frequency to measure.


  1. Create a job or open Analyze from a route measurement point.
  2. From the Analyze main menu, press F7 More Experts > F11 Cross Channel Amplitude/Phase.
  3. Press Start or Enter to collect the data.
  4. Enter the phase frequency.
  5. Press Enter.