Articles

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  • Two bulk conveyors prove better than one

    Engineers at EaglePicher Corp. in Quapak, Okla., faced some unique problems in manufacturing high-purity isotopic chemicals and wound up addressing them via a unique solution.

    David Boger, Flexicon Corp.
    07/11/2007
  • First the application, then the product

    CONTROL Editor in Chief Walt Boyes defines a range of applications and types of level measurement devices and techniques used for figuring out even the most complex level measurement problems.

    Walt Boyes, Editor in Chief
    03/03/2007
  • Measure your progress

    How well do you know your measurement uncertainties? Find out with this 15-item quiz from Dr. Gooddata.

    Ronald H. Dieck, Ron Dieck Associates, Inc.
    06/19/2006
  • Level transmitter — art not science

    There is much more to setting up a transmitter than a mere equation. Design and control errors can certainly compromise performance. Follow these simple tricks to get it right.

    Dirk Willard
    06/13/2006
  • Keep measurements on the level

    Changes in liquid densities can throw off readings. Plants commonly rely on differential pressure (DP) cells to measure level. Read this month's Plant InSites for advice on how to solve these level problems.

    Andrew Sloley, contributing editor
    04/17/2006
  • Keep lobes in mind

    Understand why and when to consider these positive-displacement pumps.

    John Hall, Viking Pump, Inc.
    01/03/2006
  • Flow Meter Focus

    ChemicalProcessing.com introduces Flow meter focus, a compilation of useful articles, news, white papers and product information related to flow meters.

    09/28/2005
  • Process Engineering: HART Offers Value in Plant Control Systems

    There's a myth in plants that HART offers little for Plant Control Systems and Enterprise Level Networks. But Ed Ladd from the HART Communication Foundation writes that by accessing the data in HART devices on a "full-time" routine basis increases performance, integrity, and reliability of plant control and enterprise level systems.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    05/11/2005
  • Process engineering: Doing your level best

    Plant engineers who find it is difficult to get good level measurements have plenty of company. A recent poll shows that it is considered to be one of the two most vexing problems by process automation professionals.

    04/08/2005
  • Process engineering: Pneumatic conveying moves ahead

    Pneumatic conveying has long been a popular choice for moving bulk materials. However, the technology hasn't been standing still, and this can influence the choice between several types of pneumatic systems.

    Nick Basta
    04/04/2005
  • How Do You Train a Process Manufacturing Plant Operator?

    Sybron Chemicals had the right idea when it sought to properly document the procedures for its wastewater treatment plant. The first step for improving both employee and plant efficiency is to have an up-to-date plant manual.

    William Biach, Biach Information Arts
    03/11/2005
  • Fieldbus technology: Cut through the confusion

    Fieldbus technology offers many benefits to a chemical processor if used correctly. The key is to focus on front-end design to achieve the full benefits of fieldbus technology.

    Ian Verhappen, P.Eng., ICE-Pros
    03/10/2005
  • HART Devices - Dispelling the Myths

    Myths and misconceptions surround the HART Communication technology despite being in use for as many as 15 years in some places. This article dispels those myths and highlights the benefits of HART.

    Ed T. Ladd, Jr., HART Communication Foundation, Austin, Texas
    03/10/2005
  • Process Engineering: Measure problems on a higher level

    A reader has a level measurement problem with a differential pressure level transmitter. The transmitter does not track the level properly. Check out the question and the in-depth answer in this contribution from ControlGlobal.com.

    03/03/2005
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