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Classification of Machines Classification of Machines This application note will provide a basis for selection of the machinery list of a Predictive Maintenance (PM) data collector program. Creating a PM mach Machine Classifications Machine Classifications The type of vibration monitoring system to install on a machine train will depend upon how the machine train is used in the plant process. A very important machin Turbine Supervisory Instrumentation Turbine Supervisory Instrumentation Improve Reliability and Performance with a TSI from STI Vibration Monitoring STI’s Turbine Supervisory Instrumentation (TSI) Systems provide cont Balancing Balancing Unbalance is a very common source of high vibration that is identified by excessive levels of vibration amplitudes at a frequency that is synchronous with machine speed. Possib Differential / Rotor Expansion Differential / Rotor Expansion Differential Expansion (DE) and/or Rotor Expansion (RE) are very important measurements usually supplied by the Original Equipment Manufacture (OEM) as part of a Eccentricity Eccentricity Shaft Eccentricity plays a very important role as part of a Turbine Supervisory Instrumentation (TSI) System on large steam turbines and should be included in retro-fit p Thrust Position Thrust Position Thrust Position Monitoring was one of the earliest applications for Eddy Current Transducers. When utilized for this application, it is one of the most important componen Turbine Supervisory Instrumentation 1 Turbine Supervisory Instrumentation 1 Specification of a Turbine Supervisory Instrumentation (TSI) system can be an exhausting process when the individual parameters must be specified Turbine Supervisory Instrumentation: Shell or Case Expansion Turbine Supervisory Instrumentation: Shell or Case Expansion Shell or Case Expansion is a very important measurement as part of a Turbine Supervisory Instrumentation (TSI) System for la Valve Expansion Valve Expansion Valve position measurements are an important aspect of a complete Turbine Supervisory Instrumentation system. Typically, the Main Steam Control (or Throttle) Valve is