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The Balancing Act of DP Flow Meter Selection Print E-mail
Written by Kitty Elshot and Emily Vinella, Emerson Rosemount Measurement   

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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Consideration for Choosing a Flow Meter Print E-mail
Written by Marcus P. Davis, McCrometer   

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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Cellular Communications for SCADA Applications Print E-mail
Written by Ira Sharp, Phoenix Contact   

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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Basic Rules for Measuring Frequency Spectra Print E-mail
Written by Mickey Harp, Ludeca, Inc.   

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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Emerson Control Techniques Increases Energy Savings for Joseph Gallo Farms Print E-mail
Written by Alexandra Ferretti   

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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Packaged Pump Systems and Variable Flow Pressure Boosting Print E-mail
Written by Brian James and Roger Weldon, Grundfos Pumps   

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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Types of Volumetric Flowmeters for Liquids Print E-mail
Written by Greg Livelli, ABB   

Explore differential pressure, electromagnetic, vortex and swirl, and variable area (rotameters).

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The Latest Ultrasonic Flowmeter Technology Print E-mail
Written by Beth Dumey and Brad Zipser, Cole-Parmer Instrument Co.   

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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Energy Management Considerations with Today's Drive Systems Print E-mail
Written by Michael Perlman, Siemens Industry Inc.   

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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New Advances in Variable Frequency Drives Print E-mail
Written by Steven B. Weston and Michael W. Owens, Eaton Corporation   

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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