Page 169 - An Introduction To Predictive Maintenance

Vibration Monitoring and Analysis 159

Figure 7–27 Common magnetic mounts for
transducers.

(a) (b) (c)
a. Orientation is not 90° to shaft centerline.
b. Measurement-point location is not always consistent.
c. Compressive load varies and may induce faulty readings.

Figure 7–28 Handheld transducers should be avoided when possible.

maximum benefit from a predictive maintenance program. If this technique must be
used, extreme care should be exercised to ensure that the same location, orientation,
and compressive load are used for every measurement. Figure 7–28 illustrates a hand-
held device.