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ADASH Ltd.
Adash 4900 – Vibrio III
FASIT - Fault Source Identification Tool
The FASIT is also included in the Adash 4900 Vibrio III. The name FASIT is used in more Adash
products for expert system, which would help the user to find the source of vibration troubles. It is
good message for users, because such functions were not ever built-in the instrument in this price
category. The FASIT displays several bar graphs with traffic light colours. Two major (largest) bars are
allocated to general machine condition ( on the left side) and ball bearing condition (on the right side).
The next three bars are located in the middle. They displays the severity level of UNBALANCE,
LOOSENES and MISALIGNMENT (from the top).
Measurement Points
The measurement location must enable repeatable measurements under the same conditions as the
previous measurement. Also the direction of sensor ( radial, axial for rotated machines) is important.
That is why you we should determine measurement points on the machine. The typical machine
together with the measurement points in the picture.
For the measurement in radial direction, we are going to place the sensor perpendicularly to the axis
of rotation, for axial measurement along the axis. The radial measurement can usually be performed
horizontally, vertically or in another angle. The importance of the angle choice should not be
overstressed; choose any radial direction with easy access.
The measurement points need to be prepared for the measurements. The best is to place measuring
pads on a machine (see the chapter Preparation of Measuring Location).
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