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  • Flowmeters clean and dirty contributor David W. Spitzer provides a look from a process automation perspective at how magmeters and Venturi meters are vying with ultrasonics for clean and dirty water applications.

    David W. Spitzer
  • Data validation: Jewel in the fieldbus crown?

    Many users and most suppliers to the industry see process availability as the big payout benefit of Foundation Fieldbus (FF) diagnostics — a good portion of it realized through data validation.

    John Rezabek, Contributing Editor
  • Avoid trouble with slurries

    Handling slurries (a mix of solids and liquids), should be based on experience and experiments, not theory. Much of the knowledge obtained from pneumatic conveyors and fluidization systems can be used in understanding slurries.

    Thomas R. Blackwood, Healthsite Associates
  • Keep measurements on the level

    This article looks at six technologies — mechanical floats and displacers, differential pressure, capacitance, ultrasonic, radar, and guided wave radar — that are used most often for automated control, and provides practical guidance for choosing among them.

    Jerry Boisvert, Siemens Energy & Automation
  • Choosing motor controls and drives

    In any industrial control application, using the right drives and motor controls can make or break the project, and also can make a huge difference in how well those applications perform.

  • How to select control valves, Part 2

    When it comes to selecting and sizing control valves and positioners, this article not only helps you pick the right one for the right job, but also includes a valuable valve selection chart you can download!

    Béla Lipták, PE, CONTROL Columnist
  • The FRETT approach to pump problems

    Some U.S. oil refineries repair their centrifugal pumps every three years while other refineries enjoy an average repair interval of 10 years. Learn about the highest-performing refineries and other petrochemical companies that have significantly reduced pump failures, and how you can obtain the same results.

    Heinz P. Bloch, P.E.
  • Increase pump performance

    In this web exclusive on, pump expert Ross Mackay says a key to a pump's performance is to look at the control system it's running with.

    Ross Mackay
  • Process analysis gains greater online role

    Faster. Smaller. Smarter. Modular. All express the future of process analytics. And un-stoppable describes the ongoing migration of process analytical instruments to continuous, online, field-mounted use at chemical plants.

    C. Kenna Amos, contributing editor
  • Remember the old reliable orifice plate

    The cost-effective dP flow meter is ideal for utility surveys, Senior Editor Dirk Willard says in this month's Chemical Processing Field Notes column.

    Dirk Willard, senior editor
  • Cutting the wires of communications

    Users want wireless, vendors want to sell wireless, so what’s the problem? This article tackles one of the most discussed topics: the use of wireless communications in process automation.

    Walt Boyes, Editor in Chief
  • Keep a steady eye on measurements

    While engineers often strive to keep processes running without too much variation, measurements that don’t change may be a cause for concern not celebration, as one refinery can attest.

    Andrew Sloley, contributing editor
  • Pumping Temperature Considerations

    "Bad actor" pumps are those pumps that have trouble with frequent and repetitive failures. In many cases, the source of the problem is an ANSI pump trying valiantly to handle a liquid well beyond the range of its design rating.of 300 degs. F.

    Ross Mackay
  • Get a handle on solids’ flow

    Properly accounting for how bulk solids actually will flow in a vessel or overall process can be crucial for successful operations. Learning some simple parameters can often provide a good sense of flowability.

    Don McGlinchey, Glasgow Caledonian University
  • Distillation control and optimization, Part 1

    Control columnist Bela Liptak describes the distillation process and PID-based controls, reviews optimization strategies, and shows how advanced controls can cut operating costs of distillation.

    Béla Lipták, PE, Control Columnist
  • Flow metering gets more fluid

    There are more and more funcationalities being added to your most trusted instrumentation. These established technologies have expand their reach and performance.

    Mike Spear, editor at large
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