GE SCOUT140-Ex - Tachometer Display

Section 4 — Measurement Types and their Uses
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Tachometer Display
Tachometer Display shows an updating readout of the machine speed. It
can also display the amplitude and phase angle of the 1X vibration the
instrument. This can be used to:
• Verify the machine running speed.
• View the phase angle of the vibration relative to the tach signal.
• Take a quick preview of the out of balance level.
• Connect the tachometer that will be used to measure the RPM
— Attach a vibration sensor if you wish to see the vibration
amplitude.
1. Press or Measure.
2. Press Tach.
3. Press to select the standard tachometer or Keyphasor®
sensor — The Tachometer Reading menu will display a continuously
updating RPM and the equivalent value in Hz.
4. To see the amplitude and phase angle relative to the tachometer
signal:
a. Press Tach + Vibration > Change any parameters as
required.
b. Press to take the reading.
Comparing the amplitude and phase angle with the tachometer signal