Vibration Institute

Certified Vibration Analyst - Category II

Credential: Certified Vibration Analyst - Category II  ANAB (ANSI) resource
Credentialing Agency: Vibration Institute

Renewal Period: 5 years

The Vibration Institute, Certified Vibration Analyst - Category II is an intermediate-level credential for professionals who specialize in machine and equipment maintenance, troubleshooting, and engineering. Vibration Analysts certified at the second level perform basic vibration analysis using single-channel instruments according to established procedures, set-up instruments, and maintain a database of results. Applicants for the Category II Certified Vibration Analyst certification must meet training and experience requirements and are also required to pass an exam.

More information can be found on the certifying agency's website.

Certified Vibration Analyst - Category II

MINIMUM REQUIREMENTS

Attainability:    medium

Eligibility Requirements (View Details)

  • Credential Prerequisite: Certified Vibration Analyst - Category I
  • Experience: 18 months
  • Education: High School Diploma/GED
  • Training: 38 hours
  • Membership
  • Other
  • Fee

Note: This credential may have multiple options for a Service member to meet eligibility requirements. Requirements listed here are based on the minimum degree required. To view other options, see the Eligibility tab.

Exam Requirements (View Details)

  • Exam
  • Written Exam
  • Oral Exam
  • Practical Exam
  • Performance Assessment

Exam Administration (View Details)

  • In-person exam
  • Remote proctored on-line exam
  • Third-party test vendor

RECERTIFICATION SUMMARY

Renewal Period: 5 years

  • Continuing Education
  • Exam
  • Continuing Education OR Exam
  • Fee
  • Other

AGENCY CONTACT INFORMATION

Vibration Institute

2625 Butterfield Road
Suite 128N
Oak Brook, Il  60523

Phone: (630) 654-2254

Fax: (630) 654-2271
Email: information@vi-institute.org

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Option 1:

Applicants are required to hold the Certified Vibration Analyst - Category I. The Vibration Institute permits exception to this requirement. Review the "Additional Considerations" tab of this page for details.

The Vibration Institute recommends that applicants have a secondary school education.

Applicants for the Certified Vibration Analyst - Category II must provide evidence of at least 18 months of experience in the field of machinery condition monitoring, diagnostics, and electrical and mechanical technologies.

Applicants for the Certified Vibration Analyst - Category II must provide evidence of meeting the Vibration Institute training criteria as follows:

  • Provided by a training body that conforms to the requirements of ISO 18436-3
  • Based on the Body of Knowledge for each category (these are vibration principles, data acquisition, signal processing, condition monitoring, fault analysis, corrective action, equipment knowledge, and acceptance testing)
  • Included formal lectures, demonstrations, trainer-specified practical exercises, and/or distance controlled self-study
  • Met or exceeded 38 hours.

Details about required training can be found in the Vibration Analyst Certification Handbook.

Written Exam

  • Vibration Principles
    • Basic motion
    • Period, frequency
    • Amplitude (Peak, peak-to-peak, RMS)
    • Parameters (Displacement, velocity, acceleration)
    • Units, unit conversions
    • Time and frequency domains
    • Phase
    • Natural frequency, resonance, critical speeds
  • Data Acquisition
    • Instrumentation
    • Transducers
    • Sensor Mounting, mounted natural frequency
    • Fmax acquisition time
    • Proximity sensor conventions
    • Triggering
    • Test Planning
    • Test Procedures
    • Data formats
    • Recognition of poor data
  • Signal Processing
    • Analogue recording and digital sampling
    • FFT application
    • Time Windows (Uniform, Hanning, flat-top)
    • Filters (Low pass, high pass, band pass, tracking)
    • Anti-aliasing
    • Bandwidth, resolution
    • Noise reduction
    • Averaging (Linear, synchronous time, exponential)
    • Dynamic Range
  • Condition Monitoring
    • Equipment evaluation and prioritization
    • Monitoring program design
    • Baseline assessments, trending
    • Route planning
    • Fault condition recognition
  • Fault Analysis
    • Spectrum analysis harmonics and sidebands
    • Time waveform analysis
    • Phase analysis
    • Shaft center-line analysis
    • Enveloping
    • Mass unbalance
    • Misalignment
    • Mechanical looseness
    • Bearing defects (rolling element, journal)
    • Electric motor defects
    • Gearbox analysis
    • Resonance and critical speeds
  • Corrective Action
    • Shaft alignment
    • Field Balancing
    • Basic maintenance action
  • Equipment Knowledge
    • Electric motors, generators and drives
    • Pumps, fans
    • Steam turbines, gas turbines
    • Compressors
    • Reciprocating machinery
    • Rolling mills, paper machines, other process equipment
    • Machine tools
    • Structures, piping
    • Gearboxes
    • Rolling element bearings
    • Journal bearings
    • Gearing
    • Couplings, belts
  • Acceptance Testing
    • Test procedures
    • Specifications and standards
    • Reporting
  • Equipment Testing and Diagnostics
    • Impact testing
    • Forced response testing
  • Reference Standards
    • ISO
    • IEC
    • Relevant national standards
  • Reporting and Documentation
    • Condition monitoring reports
    • Vibration diagnostic reports
  • Fault Severity Determination
    • Spectrum analysis
    • Time waveform analysis, orbit analysis
    • Levels: overall, narrowband, component
    • Severity charts: graphs and formula

Exam Preparation Resources

There are a number of resources available to help you prepare for the Certified Vibration Analyst - Category II examination:

An additional resource is O'Reilly Learning Safari Books Online, a searchable digital library that provides online access to thousands of books, training videos and conference sessions. See the Educational Resources section on the Related Sites page here on COOL to learn how to get free access.

Testing Information

  • Exam Administration

    Credential exams may be administered in-person at a testing site, proctored on-line remotely, or have options for both. If an exam is administered through a test vendor, the third-party test vendor box will be checked. The following test administration options apply to the Certified Vibration Analyst - Category II credential where checked:

    • In-person exam
    • Remote proctored on-line exam
    • Third-party test vendor

  • For more information on the Vibration Institute testing process, visit the agency website.

Additional considerations for the Certified Vibration Analyst - Category II include:

  • Applicants may skip the Vibration Institute Category I examination, certification, and formal training requirement for Category I only, and apply directly for Category II if applicants meet any one of the following criteria:
    • Hold any 4-year degree from a college or university;
    • Hold any 2-year technical degree from a college or university;
    • Have 3 or more years of experience in vibration analysis; or,
    • Hold an active vibration analyst recognition (certificate) at any Category from any reputable training organization.

In Demand

This certification is considered in demand. The U.S. Department of Labor sponsored CareerOneStop's analysis indicates the certification is frequently mentioned in online job postings.

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Credential is related to some tasks associated with the duties of the military occupation (at least one critical task but less than 80%)

Most

Credential is directly related to most of the major duties associated with the military occupation (at least 80%)

Other

Credential is related to this military occupation, but is more advanced or specialized and therefore will likely require additional education, training, or experience

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Early Career

1-3 years experience; Enlisted E1 through E4

Mid Career

4-10 years experience; Enlisted E5 through E6

Late Career

10+ years experience; Enlisted E7 through E9

Early Career

1-3 years experience; Enlisted “A” School through E5

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4-10 years experience; Enlisted E6 through E7

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10+ years experience; Enlisted E8 through E9

Early Career

1-6 years experience; Officer O1 through O2

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6-12 years experience; Officer O3 through O5

Late Career

12+ years experience; Officer O6 and Above

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Low

May be difficult to attain: minimum education requirement is a Bachelor's degree, and/or minimum experience is 10 or more years.

Note: In some cases “years of experience” refers to time actively on duty or while holding a certain occupation or prior certification and not always in consecutive calendar years. Additional years required for certain preliminary stages may not be included in this classification. For requirements measured in hours, 1080 hours was considered a year. For days, 365 days was considered a year. Please review all prerequisites and requirements for eligibility, and additional information for details.

Medium

Moderate ease of attainment: minimum education requirement = Associate's and/or prerequisite and/or minimum experience = more than 2 years and less than 10 years of experience.

Note: In some cases “years of experience” refers to time actively on duty or while holding a certain occupation or prior certification and not always in consecutive calendar years. Additional years required for certain preliminary stages may not be included in this classification. For requirements measured in hours, 1080 hours was considered a year. For days, 365 days was considered a year. Please review all prerequisites and requirements for eligibility, and additional information for details.

High

Highly attainable: minimum education requirement = HS or less and/or minimum experience = 2 years or less experience and no additional requirements.

Note: In some cases “years of experience” refers to time actively on duty or while holding a certain occupation or prior certification and not always in consecutive calendar years. Additional years required for certain preliminary stages may not be included in this classification. For requirements measured in hours, 1080 hours was considered a year. For days, 365 days was considered a year. Please review all prerequisites and requirements for eligibility, and additional information for details.

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Updated: April 30, 2021
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