ISO CAT course topics covered

The following is a list of the main topics covered in the

  • Vibration Technician Category I
  • Vibration Analyst Category II
  • Vibration Specialist Category III


Some topics are listed as being covered in two or all three of the courses either because they are reviewed in the Category II and/or III, or because the topics are covered in greater detail in the II and/or III course.



1. Overview of maintenance practices and condition monitoring CAT  
Maintenance practices: breakdown, preventive, predictivexx
Reliability centered maintenance/precision maintenancexx
Balancing, alignment, and lubricationxx
Condition monitoringxx
Overview of vibration analysisxx
Alternative technologies: oil analysis, infrared thermography, motor current analysis, and acoustic emissionxx
2. Principles of vibration
Basic motionxx
Period, frequencyxx
Frequency units: Hertz, CPM, ordersxx
Amplitude: peak, peak-to-peak, and rmsxx
Parameters: displacement, velocity, accelerationxx
Units and unit conversionsxx
Time and frequency domainsxxx
Vectors and modulationx
Natural frequency, resonance, critical speedsxxx
Force, response, damping, stiffnessx
Beats, modulation, signal shapes: sinusoidal, square, transientxx
3. Data acquisition
Dynamic range, signal-to-noise ratiox
Transducer operationxx
Transducer selectionxx
Sensor mounting locationsx
Sensor mounting issues, mounted natural frequencyxxx
Fmax, acquisition timexx
Proximity sensor conventionsx
Test planningxx
Test proceduresxxx
Data formatsxx
Computer database upload/downloadx
Recognition of poor data: no signals, settling time, ski-slopexxx
Recognizing abnormal conditions: machine speed and loadxxx
Machine observationsxxx
4. Signal processing
RMS/Peak detectionx
Analog/digital conversionxx
Analog sampling, digital samplingxx
FFT computationx
FFT applicationxxx
Linear versus logarithmicxxx
Time windows: uniform, Hanning, flattopxx
Filters: low pass, high pass, band-pass, trackingxx
Bandwidth, resolutionxx
Noise reductionxx
Averaging: linear, synchronous time, exponential, peakxx
Dynamic rangexx
Signal-to-noise ratioxx
True zoom versus frequency expansionx
5. Condition Monitoring
Computer database setup, computer database maintenancex
Equipment evaluation and prioritizingx
Monitoring program designxx
Alarms setup: band, narrowband, envelopexx
Baseline assessmentsxx
Route planningxx
Fault condition recognitionxx
6. Fault analysis
Spectrum analysis, harmonics, sidebandsxxx
Spectral maps, waterfall plots, cascade diagramsxx
Time waveform analysisxx
Phase analysisxx
Transient analysisxx
Orbit analysisx
Shaft centerline analysisx
Bode/Nyquist plotsx
Field test overviewxx
Mass unbalancexxx
Bent shaftsxx
Mechanical loosenessxx
Rubs, instabilitiesxx
Bearing defects: rolling element, journalxx
Electric motor defectsxx
Flow induced vibration, aerodynamics and hydraulicsx
Belts and couplingsxx
Gearbox analysisxxx
Soft footxx
Resonance and critical speedsxx
Turbo machineryx
General fault recognitionx
7. Corrective action
Shaft alignmentxx
Field balancing (single and two plane)xx
Replacement of machine partsx
Isolation and dampingx
Resonance controlx
Basic maintenance actionxxx
8. Equipment knowledge
Electric motors, generators, and drivesxx
Pumps, fans, air handlersxx
Steam turbines, gas turbinesxx
Reciprocating machineryxx
Rolling mills, paper machines, other process equipmentxx
Machine toolsxx
Structures, pipingxx
Rolling element bearingsxx
Journal bearingsxx
Couplings, beltsxx
9. Acceptance testing
Test procedurexx
Specification and standardsxx
10. Equipment testing and diagnostics
Impact testingxx
Forced response testingxx
Transient analysisx
Operating defection shapesx
11. Reporting and documentation
Condition monitoring reportsxx
Vibration diagnostics reportsxx
Management reportsxx
12. Fault severity determination
Spectrum analysisxx
Time waveform analysis, orbit analysisxx
Levels: overall, narrowband, componentxx
Severity charts, graphs and formulax