Page 14 - 810 Trianing Book Extract

D Fluke 810 Vibration Tester:

measure the machine—overview

1. Vibration transmits down the shaft, through the Quick reference guide
bearing, into the bearing housing, into the sensor
magnet and into the sensor.

2. The triaxial sensor measures vibrations in all three Mark this page and the next three pages as a
Quick Guide to help measure your machines.
directions simultaneously.

3. The sensor converts the vibrations to an electrical
signal and transmits it to the tester.

Figure 38

Where to mount the sensor?

For vibration testing, we can simplify things to a simple shaft with two bearings (see igure 39). Look at your

machine and identify the shaft, bearings, coupling, and driven element. Then mount the triaxial sensor on the
bearing housing or as close to the bearing as possible.

Motor bearing Coupling Pump bearing

Motor shaft Pump shaft Pump impeller

Figure 39

70 Section 2: Vibration tester training manual