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Operation
How to Measure Vibration
4
4-25
How to Measure Vibration
Best practice is to take vibration measurements when the
machine is running in a steady state and at normal
operating temperature. Fluke recommends that you make
two measurements for each component in the drivetrain
(unless the bearings are less than 36 in (1 m) apart). For
optimum diagnostic quality, make each measurement at
the bearing location when possible.
Multiple measurements will improve the diagnostic
quality. You need to test all the components, but not
necessarily all the possible Sensor locations on each
component. Vibration transmits easily through a machine
and it will be picked up from each location.
To measure machine vibration with the Tester:
1. Push . The Measure screen shows the saved
Machine Setups ready for measurement.
2. Rotate the Dial to highlight a Machine Setup and
push the Dial or Enter (F3) to select the saved setup.
gbk51.bmp
The Tester automatically detects and configures the
settings for the Sensor unless the drivetrain includes
a variable frequency drive (VFD) or dc motor. If there
is a VFD or dc motor, you must verify the RPM in the
RPM Entry screen which appears next.
3. To enter the RPM, choose a method:
• Retake the RPM measurement.
• Manually enter the RPM.
• Push Skip to skip the RPM Entry screen.
The Tester configures the settings and detects the
Sensor.
1.888.610.7664 sales@GlobalTestSupply.com
Fluke-Direct.com
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