Tachometer Display - Commtest Instruments vb Series Instrument Reference Manual

4. Tachometer Display

The Tachometer Display option displays a readout of the machine
speed and the amplitude and phase angle of the 1X vibration. 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
•
From the Main Menu press
access the Tachometer Display Menu.
•
To display the RPM, connect the tachometer. To check the
vibration level, attach the sensor also. The vibration level will
be displayed in the units selected in the Display Options
Menu.
•
With the sensor(s) connected, press
measuring. To stop, press
38 Section 3: Onsite Analysis - Measurement Menu
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Measure then
to begin
to