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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 Comparing Vibration Readings Comparing Vibration Readings Comparing vibration level readings taken by different types of instruments and transducers can be very confusing and can lead to mistrust of the systems involve Conventions Conventions This application note provides a set of conventions to provide order and meaning to how transducers relate to their mounting and the machine. Motion Towards Vibratio Cooling Tower Fans Cooling Tower Fans Cooling Tower Fans have applications in all industries. They remove heat from other materials, usually water. A cooling tower may consist of one cell or many individual cells 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 Fault Detection / OK Circuits Fault Detection / OK Circuits Over the years, two methods of vibration transducer fault detection have become prominent: OK Circuits and Fault Detection Circuits. The objective of b Field Service Field Service Proper installation is critical to the performance, integrity and credibility of your Vibration Monitoring or Information System. A proper installation is dependent on, qua Field Wiring Field Wiring There are a number of items to consider when installing a permanently mounted vibration monitoring system. One of the most critical considerations is the selection and insta Frequency Domain Frequency Domain Frequency domain measurements and analysis have become increasingly popular to diagnose a particular machine fault. This measurement mode relies on processing the Journal Bearings Journal Bearings Industrial machinery with high horsepower and high loads, such as steam turbines, centrifugal compressors, pumps and motors, utilize journal bearings as rotor supports. 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 Monitoring System Users Monitoring System Users Smooth operation of a machine train involves the cooperation of several disciplines which interface with each other and a vibration monitoring system in differing Piping Vibration Piping Vibration Piping vibration can be an annoying problem which can consume unnecessary maintenance activity and can affect pumping system performance and endurance. The system inc Reverse Dial Alignment Reverse Dial Alignment Mis-alignment can be the most usual cause for unacceptable operation and high vibration levels. New facilities or new equipment installations are often plagued Transient Analysis Transient Analysis Transient analysis is the study of how various signals change during a machine's process or load change. This analysis is particularly important during a machine's 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 Dial Indicator Alignment Dial Indicator Alignment Procedure The procedure for doing reverse dial indicator alignment is not a difficult one.  There are several steps which need to be taken for a s CMCP1100 Wiring Diagram Wiring Diagram for CMCP1100 Courtesy of STI Vibration Monitoring Electrical powering requirements Most internally amplified vibration sensors require a constant current DC power source. General Field Application Note: Reverse Dial Alignment Courtesy of STI Vibration Monitoring Inc. www.stiweb.com Misalignment can be the most usual cause for unacceptable operation and high vibration levels. New facilities or new equipm Acceleration Enveloping Application Enveloping Acceleration envelope measurements are a new introduction to the inventory available to vibration analysts. Although initially it would seem to be most useful for detecting