VIBTOOL 02.2009
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Bearing diagnosis
Bearing diagnosis with VIBTOOL
During measurement keep the sensor firmly pressed
against the measurement point and keep it still - measure-
ment duration depends upon signal strength and stability.
VIBTOOL takes four successive individual measurements
and uses the maximum value.
Bearing diagnosis display
The following display shows all the symbols which can
appear during a bearing diagnosis measurement. However,
the symbols may not all appear simultaneously.
Lo or Hi in the display?
If ‘Lo’ or ‘Hi’ appear when taking bearing measurements,
the measured value is too low or too high to measure
correctly, the range being -9 to +80dB. Check that the
sensor is correctly in contact with the machine.
Units of measurement (dBsv)
Symbol indicating bearing
diagnosis measurement
Symbol indicating carpet value
Symbol indicating maximum value
Symbol indicating measurement
error (instable signal, etc.)
Measurement OK
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