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Written by Kitty Elshot and Emily Vinella, Emerson Rosemount Measurement
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Choosing the right differential pressure flow meter for an application can be challenging. This article outlines the considerations and trade-offs in selecting the optimal technology.
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Written by Marcus P. Davis, McCrometer
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Find the right flow meter for your process and plant.
Selecting a liquid flow meter to measure volumetric flow rate or totalized flow can be a complex process. There are many factors to consider, including the fluid type, application environment, operating parameters like temperature, pressure and flow rate, flow meter technology, accuracy and repeatability requirements, reliability, installation constraints, maintenance requirements and instrument life cycle.
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Written by Ira Sharp, Phoenix Contact
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Effective and secure cellular communications for remote data acquisition
Managers of water/wastewater facilities need to collect accurate information from remote assets such as pumps, tanks and booster stations. Traditionally, this information is collected manually by collecting the chart recordings. This might be done monthly, weekly or daily, depending on available staffing.
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Written by Mickey Harp, Ludeca, Inc.
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Frequency analysis is an important method of vibration analysis. It provides information on vibration sources and helps identify those components in the vibration signal that are often small, but nevertheless important, for diagnosis. Each vibration can be attributed to a particular excitation source or machine part.
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Written by Alexandra Ferretti
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Pumps and Systems Success Story of the Year 2010 Finalist
Joseph Gallo Farms in Atwater, Calif., uses captured methane gas from its 5,000 dairy cows to run up to 50 percent of the electricity for its cheese factory. Using well water and recycled water, cow manure is periodically washed away for processing. In covered lagoons, natural bacteria break down the manure, and the resulting methane gas is eventually turned into electricity.
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Written by Brian James and Roger Weldon, Grundfos Pumps
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Packaged pump systems are gaining popularity due to their space saving design, simplified installation, single source responsibility and advanced control options with communication ability.
Packaged means that all the components needed for the pump system are wired, piped and mounted on a base. This compact configuration offers easy installation.
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Written by Greg Livelli, ABB
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Explore differential pressure, electromagnetic, vortex and swirl, and variable area (rotameters).
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Written by Beth Dumey and Brad Zipser, Cole-Parmer Instrument Co.
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In the last decade, ultrasonic flowmeters have grown in popularity in laboratory and process areas as a cost-effective, noninvasive alternative for measuring the velocity and flow rates of liquids and gases. Just as the price of Blu-RayTM disc players has plummeted, the cost of ultrasonic flowmeters has dropped so much that users have been able to replace their older technologies with what were formerly expensive devices.
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Written by Michael Perlman, Siemens Industry Inc.
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While it is valid to state that energy efficiency is defined as the same level of production achieved at an overall lower energy cost, it is equally important for today's machine builders and automation engineers to remember an energy efficient system can actually translate into higher productivity. This is achievable through a comprehensive approach to energy management.
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Written by Steven B. Weston and Michael W. Owens, Eaton Corporation
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Variable frequency drive technology is more efficient and accurate, which leads to increased energy savings. Advancements in capacitors and direct current (DC) link reactors, IGBTs, heat management, processing power and measuring technology are all enabling the development of solutions to problems that were not even recognized earlier. Additionally, new and advanced algorithms affect energy efficiency.
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