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Understanding Sound and Noise Levels Environmental Noise Weakest sound heard 0dB Whisper Quiet Library at 6' 30dB Normal conversation at 3' 60-65dB Important Links for Sound and Noise OSHA United States Department of Labor http://www.osha.gov/SLTC/noisehearingconservation/ OSHA United States Department of labor eTool Technical Manual http://www.osha.gov/dts/osta/otm/noise/ I Sound and Noise Exposure Facts Any exposure to noise above 85dB can damage the human hearing; as a rule of thumb, the ambient sound is too loud if you can not carry on a conversation without raising your voice. Occupational noise Laser Sheave / Pulley Alignment Application Note Large savings to be made with correctly aligned machines A common misunderstanding is that sheave/pulleys are not affected dramatically by misalignments. This assumption has res 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 Accelerometer Installation Guide Accelerometer Installation Guide Table of Contents: Section I : Introduction Section II : Mounting Accessories Installation Tools Adhesives and Sealants Accelerometer Transducers and Installation Accelerometer Transducers and Installation Accelerometers have been a popular choice for rotating machinery vibration monitoring. They are a rugged, compact, light weight transducer wi 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 Eddy Current (Proximity Probe) Transducer Installation: Part 1 Radial Vibration Eddy Current (Proximity Probe) Transducer Installation: Part 1 Radial Vibration Eddy Current Transducers (Proximity Probes) are the vibration transducer of choice when installing vibrat 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 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 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 Velocity Transducer Installation Velocity Transducer Installation The velocity pickup is a very popular transducer or sensor for monitoring the vibration of rotating machinery. This type of vibration transducer installs SKF Bearing Life Cycle ” Your Direct Source for Plant Maintenance, Reliability, Test & Measurement” 1010 E. Main Street, League City, TX USA 77573 Phone: 281-957-5283 Fax: 281-334-4255 www.relia Ultrasonic Leak Detection: How Does it Work? Ultrasonic Leak Detection   How does it work??? As the name implies ultrasonic leak detectors detect the ultrasonic sound of a leak. You are probably familiar with Steam Trap & Valve Testing through Ultrasonic Inspection Steam Trap & Valve Testing through Ultrasonic Inspection A major source of energy loss in facilities that use steam for building heat or facilitating manufacturing process is through leaking steam April 2013 Newsletter