Contents
Instrument Overview ........................................................................2
Instrument parts ................................................................................ 2
General description ........................................................................... 2
Displays and icons ............................................................................. 3
Start up .............................................................................................. 5
Battery ............................................................................................... 6
Settings .............................................................................................. 7
Unit for bearing diameter setting ...................................................... 7
Display contrast and screensaver timeout .......................................... 7
Accessories ................................................................................... 8
Shock Pulse Measurement ...................................................... 9
The Shock Pulse Method ................................................................... 9
Carpet value dBc ............................................................................. 9
Maximum value dBm ....................................................................... 9
Normalized and unnormalized readings .............................................10
Unnormalized readings............................................................................10
The dBm/dBc technique ................................................................... 11
Guidelines for measuring points ....................................................... 12
Measuring points, examples ............................................................. 13
Measuring range ............................................................................. 15
Creating acceptable measurement conditions ................................... 16
Measurement intervals ..................................................................... 17
Shock pulse transducers .................................................................... 18
Bearing Measurement ............................................................... 20
Input data .......................................................................................... 20
Entering shaft diameter and rpm for dBi calculation ........................... 20
Entering dBi manually ...................................................................... 20
Shock pulse measurement .................................................................21
Transducer Line Test .......................................................................... 22
Storing measurement results ............................................................. 23
Listening to the shock pulse pattern ................................................. 24
Evaluating Bearing Condition .................................................. 25
Identifying the shock pulse source ....................................................26
Shock pulse patterns – condition codes ............................................ 27
Typical shock pulse patterns from rolling bearings ...........................28
Confirming bearing damage ............................................................. 32
Evaluation Flowchart..................................................................34
Using the Stethoscope Function.............................................36
Technical Specifications .............................................................37
Maintenance and calibration ............................................................. 38
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