Monarch Instrument EXAMINER 1000 - Manual (Page 3)

OPERATING THE EXAMINER 1000
Overview ........................................................................... 1
Controls and Functions........................... ........................... 1
Rear Panel, Batteries and Connections ............................. 2
Parts of the System ........................................................... 3
Overview of Data Collection Procedure.............................. 3
APPLYING THE EXAMINER 1000
What is Predictive Maintenance? .......................................
4
Benefits of Predictive Maintenance .................................... 4
Why Measure Vibration? .................................................... 5
Selecting Machinery & Measurements................................ 6
Selecting Measurement Types ........................................... 7
Getting Started in your Plant............................................... 8
Establishing a Data Collection Route.................................. 9
What are you Measuring? .................................................. 10
Measurement Techniques .................................................. 11
Evaluating overall Vibration Measurements ........................ 12
Evaluating Acceleration Envelope Measurements............... 13
GLOSSARY ........................................................................ 14
Vibration Severity Chart per ISO 10816-1 ........................... 16
TABLE OF CONTENTS TABLE OF CONTENTS
GLOSSARY (for vibration purposes)
Piezoelectric A material in which electrical properties change when subjected to
force.
Process Measurements Variables such as temperature, pressure, speed and
flow used to assess internal conditions of efficiency.
Radial Direction perpendicular to the shaft centerline.
Repeatability A measure of the deviation between successive measurements made
under the same conditions.
RMS Peak Vibration x .707. ( in/s or mm/s)
Rolling Element Bearing A bearing consisting of balls or rollers operating between
fixed and rotating races.
Route A sequence of measurements arranged for convenience
during acquisition.
Sensitivity Used to describe a transducer’s electrical output for a unit variation
of the mechanical quantity measured.
Stress Force per unit area
Synchronous Frequency components that are an integer multiple of
running speed.
Transducer A system consisting of a sensor and signal conditioner to convert a
physical quantity into an output for display, monitoring
and analysis.
Transmission Path The path from source (excitation) to sensor.
Trending
The plot of a variable over time used as an indicator of change.
Velocity A vector quantity of the time rate change of displacement.
Vibration Conversions
D = 19.10 x 10 3 x (V/F)
D = 70.4 x 10 6 x (A/F 2 )
V = 52.36 x 10 -6 x D x F
V = 3.68 x 10 3 x (A/f)
A = 14.2 x 10 -9 x D x F 2
A = 0.27 x 10 -3 x V x F
where: D = Displacement (mils peak-to-peak)
V = Velocity (in/s zero-to-peak)
A = Acceleration (in/s
2 zero-to-peak)
F = Frequency (cpm)
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