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This issue sponsored by Industrial Automation INSIDER

March 2017

Extreme Measurement: Coriolis Option for Chlorine

A colleague of mine discussed a chlorine application, using Coriolis meters, on an Internet discussion group. He had noted that were "several hundred meters installed" in this application. Since Coriolis mass flowmeters are generally quite expensive, I was extremely interested in knowing what application was so critical that they required hundreds of meters. click for more...

Differential Pressure Transmitter Temperature and Pressure Effects

Many flow applications (including in the oil and gas industry) are implemented using differential pressure flowmeters such as orifice plate and Venturi primary flowmeter elements. Differential pressure flow transmitters are used to convert the differential pressure signal at the primary to an electronic signal. click for more...

Effects of Ambient Temperature Fluctuations

A differential pressure transmitter with an upper range limit of 500 mbar and a set span of 0-250 mbar (approximately 0-100 inches) is installed outdoors. The transmitter has an ambient temperature effect specification of 0.001% URL/degC plus 0.002% set span/degC. Approximately how is the flow accuracy of the transmitter affected by ambient temperature fluctuations of ± 20 degC? click for more...



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 publishes the Industrial Automation INSIDER that is an independent subscription newsletter for industrial automation and process control system users, installers and suppliers world-wide, giving a monthly update on the continuing evolution, development and convergence of automation technologies.

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.


ISSN 1538-5280
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