ISO 18436-2 Category IV Certified

Vibration Measurements and Analysis

Vibration measurements and analysis certified to ISO 18436-2 Category IV — the highest vibration-analysis certification.

From FFT spectrum analysis to long-term trend monitoring, vibration diagnostics catches damage at birth: bearing wear, misalignment, imbalance, resonance — before they become failure and downtime.

Field Photos: Vibration measurements →

Cat IV
ISO 18436-2 — highest certification

Vibration measurements and analysis at driving motors of factory production line

01Diagnostic services
Predictive maintenance for rotating machinery
02Fault detection
Early identification of bearing wear, misalignment, imbalance
03Analysis
FFT analysis — frequency spectrum analysis

ISO 18436-2

What Category IV means

ISO 18436-2 defines four certification categories for vibration analysts — each category requires all the knowledge and skills of the previous ones. Category IV is the highest the standard provides.

	Cat I	Cat II	Cat III	Cat IVOur certification
Capturing and evaluating operating deflection shapes (ODS) of machines and connected structures, with corrective recommendations	No	No	No	Yes
Using recognized advanced techniques for analysis, parameter identification and fault diagnosis	No	No	No	Yes
Recommending corrective actions and design modifications — component replacement or repair, isolation, damping, changes of stiffness or mass	No	No	No	Yes
Interpreting and evaluating codes of practice and specifications of international standards	No	No	No	Yes
Recognizing and measuring vibration from gas pulsation in reciprocating machines and screw compressors, with corrective recommendations	No	No	No	Yes
Corrective actions for spring and other resilient mountings, hold-downs and foundations	No	No	No	Yes
Directing and auditing condition monitoring strategies	No	No	No	Yes
Applying vibration theory through multi-channel spectral measurements — frequency response functions, phase, coherence	No	No	No	Yes
Signal processing in the frequency and time domains, including shaft orbits and their limitations	No	No	No	Yes
Determining natural frequencies, mode shapes and damping across systems, components and assemblies	No	No	No	Yes
Applying rotor-bearing dynamics principles to vibration diagnosis	No	No	No	Yes
Advanced two-plane balancing theory — influence coefficients, static and couple unbalance	No	No	No	Yes
Design and direction of condition monitoring programmes	No	No	Yes	Yes
Advanced diagnostics — time waveforms, orbits, transient conditions; two-plane balancing	No	No	Yes	Yes
Selection of measurement settings and basic spectrum analysis	No	Yes	Yes	Yes
Diagnosis of common faults and single-plane balancing	No	Yes	Yes	Yes
Data collection to established procedures and comparison against pre-set alert limits	Yes	Yes	Yes	Yes

Case studies & field applications

Yachts & industry

Motor-pump inspection on a yacht; vibration measurements and analysis at driving motors of a factory production line.

Wind turbines

Wind turbines present unique vibration analysis challenges due to their size, remote locations, and harsh operating environments. Vibration measurements and analysis can detect: early-stage gear tooth wear, bearing degradation, shaft misalignment, structural resonance issues.

Vibration sensor installation on wind turbine drivetrain

Wind turbine vibration measurements — size, remote location and harsh environment challenges

Generator-pump set

01Coupling alignment. Detect angular and parallel misalignment
02Bearing condition. Monitor for degradation and failure modes
03Resonance detection. Identify natural frequencies and excitation sources

Vibration measurements and analysis on generator-pump set

Marine propulsion systems

Comprehensive marine diagnostics: main engine crankshafts (cylinder firing imbalances, torsional vibration issues); intermediate shaft bearings (misalignment, inadequate lubrication); thrust bearings (axial vibration from propeller loads); reduction gearboxes (gear tooth damage and bearing degradation).