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Spitzer and Boyes, LLC Website

 

DAVID W. SPITZER'S E-ZINE

TECHNICAL AND MARKETING SERVICES
FOR INSTRUMENTATION SUPPLIERS AND END-USERS

This issue sponsored by Spitzer and Boyes, LLC

December 2012

Capacitance Level Measurement Technology (Part 2 of 3)

Noting that the measured capacitance is dependent upon the size of the plates and the effective distance between the plates, variation in these parameters can cause measurement problems. click for more...

Part II: Throttling the Pump:
Making the Case for Variable-Speed Drives

Last month, I was irked that the extractor feed pump operated at full speed with its flow being throttled by a control valve located in plain sight approximately one meter above the pump discharge. It seemed straightforward to me that it would be much more efficient to reduce the pump speed so that the pump output could match its load, thereby eliminating not only the dissipation of hydraulic energy across the control valve, but also eliminating the control valve entirely. click for more...

Flowmeter Installation Horror Stories

There are dozens of horror stories. Flowmeters have been installed backwards or sideways or immediately between two elbows because that was the only place the contractor could make it fit. Flowmeters have even been installed upside down. click for more...

 

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ABOUT SPITZER AND BOYES, LLC

In addition to over 35 years of experience as an instrument user, consultant, and expert witness, David W Spitzer has written over 10 books and 250 articles about flow measurement, level measurement, instrumentation, and process control. David (with Walt Boyes) is the author of seven Consumer Guides to various industrial flow and level technologies. David teaches his flow measurement seminars in both English and Portuguese.

Spitzer and Boyes, LLC provides engineering, technical writing, training seminars, strategic marketing consulting, distribution consulting, and expert witness services worldwide, and can be contacted at +1.845.623.1830 or www.spitzerandboyes.com.

 

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ISSN 1538-5280
©2012 Spitzer and Boyes, LLC
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