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

November 2015

Pump Control with a PLC (Part 2)

Here are some design considerations for you to keep in mind when writing the pump sequencer for your PLC. click for more...

Part IX: Bypassing the Control Valve Eliminates Process Bubble Troubles

If you have been following along for the past few months, ammonia bubbles affected an ultrasonic flowmeter that caused a reactor to scram (shut down) on warm days. The problem was traced to the formation of ammonia bubbles caused by a pressure control valve located 200 meters from the unit at the exit of the liquid ammonia tank farm. click for more...

How Flow Turndown Affects Measurement Range

What is the additional measurement range in which a flowmeter can accurately measure flow if its turndown is improved from 50-to-1 to 100-to-1? click for more...

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 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.