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Vibration Analysis Cat IV - Overview

Vibration Analysis Training: ISO Category IV + ASNT Level IV

The course exceeds the ISO 18436-2 Category IV standard and meets the ASNT Level IV Recommended Practice (for vibration analysis). The certification exam can be taken after the course.  (Note: The ASNT Level IV exam can only be administered by the ASNT.)



5 days including optional ISO 18436-2 certification exam on the fifth day


Course Description: Download the full course outline  





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Master Vibration Analyst (CAT-IV) - PART 1

As a Category IV vibration analyst Master Vibration Analyst (CAT-IV) - PART 1

Venue: Distance Learning
Duration: 4 days (equivalent)
Continuing Education Units (CEUs): 4

Part One of the course will be delivered via distance learning; access to a Web site will be required however a computer-based version will be available at an extra cost. The course will be taught by Jason Tranter, founder of Mobius Institute. Quizzes will be performed during the course in order to gauge comprehension.

The primary focus of this course is advanced signal processing, cross channel measurements, dynamics (mass/stiffness/damping, natural frequencies, modes), resonance testing (run-up/coast down tests, impact tests, ODS, modal analysis), and corrective action (flow control, resonance correction, isolation and damping). This course will take a practical approach to these subjects. Animations and software simulations will be used to make these topics easier to understand. Mathematics and theoretical derivations will be kept to an absolute minimum.

Learn more about the specific topics covered by downloading our brochure.

Are you ready to get started? Contact us with your questions or purchase online today:


You will come away from the course with a solid understanding of:

  1. How a well designed program, and the reliability centered maintenance approach (with precision balancing, alignment, lubrication and resonance control), will improve the OEE and therefore the bottom line.

  2. The condition monitoring technologies: acoustic emission, infrared analysis (thermography), oil analysis, wear particle analysis, motor testing – via supplementary training

  3. How to select the correct measurement location and axis, and collect good, repeatable measurements

  4. What the Fmax, resolution, averaging and other single-channel and cross-channel analyser settings mean, and how to select the optimum settings for a wide variety of machine types

  5. How to analyse vibration spectra, time waveforms, envelope (demodulation), and phase measurements

  6. How to diagnose a wide range of fault conditions: unbalance, eccentricity, misalignment, bent shaft, cocked bearing, looseness, rolling element bearings faults, journal bearing faults, gearbox faults, resonance, and other conditions

  7. How mass, stiffness and damping affects the natural frequency of a structure

  8. How to use phase readings, bump tests, impact tests, negative averaging, peakhold averaging, transient (run up and coast down), ODS, and modal analysis to determine natural frequencies and visualize machine movement

  9. How to set alarm limits manually and with statistics

  10. How to balance and align a machine, correct a resonance conditions, and employ isolation.


Master Vibration Analyst (CAT-IV) - PART 2

  • Venue: Live Classroom
  • Duration: 4 days
  • Continuing Education Units (CEUs): 4
  • Examination:  Provided on the 5th day

This four-day course will be delivered in a classroom environment.  Quizzes will be performed during the course in order to gauge comprehension.

The primary focus of this course is the measurement, analysis, dynamics, and balancing of turbomachinery.  Topics will include proximity probe and casing measurements, orbit and centerline plot analysis, rotor dynamics (natural frequencies, modeling), journal bearings (design, fluid film instabilities), and flexible rotor balancing.  The course will also cover torsional vibration.

Note that this course is designed for people who have come up through the Category I, II, III development process; it is not necessary to have a degree in advanced mechanical engineering or dynamics – we will take a very practical approach.  Utilizing advanced 3D animations and software simulations, topics that were possibly beyond the reach of many vibration analysts will be far easier to understand.  The aim is to provide the level of knowledge that enables the vibration analyst to understand these topics to a high degree, with the expectation that if advanced analysis, design modification or modeling is required, a specialist in those areas will be called-in.

Learn more about the specific topics covered by downloading our brochure.


The Category IV examination will be offered on the fifth day.  The exam consists of 60 questions which must be completed in five hours.  In order to be certified the candidate must have completed parts one and two of this course, or provide evidence of equivalent training, hold Category III certification and provide verifiable evidence of 60 months experience.

Who should attend?

If you are Category III (or Level III) certified and are ready to take your career and responsibilities to the next step, and you wish to truly master vibration analysis, diagnosis and correction, then this course is ideal for you.

You should have over 30 months of experience and a good understanding of fault diagnosis and spectrum analysis.   (Note that you require 36 months experience to be certified.)

The RMS / Mobius Institute course and certification program follows the ISO 18436-2:2003 standard and the ASNT Recommended Practice SNT-TC-1A.

What is unique about this course?

RMS / Mobius make it unique.  We use 3D animations, Flash simulations, and numerous software simulators that completely demystify vibration analysis.  While vibration training courses have traditionally been very theoretical, difficult to understand, (and boring), you will be captivated by the Mobius Training methods, and you will enjoy our practical approach.  You will take away skills that you can immediately apply to your job, and you will truly understand what you are doing.  When senior vibration analysts attend our classes they often say “if only I could have learned this way when I got started” – well, now you can!

Course Description: Download the full course outline  


RMS is an Accredited Training Organisation (ATO) and Approved Examination Centre (ATC) for British Institute of NDT 

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Mobius Certification

RMS is an Approved Training Centre (ATC) and Approved Examination Centre (ATC ) for Mobius Institute

Read More