David Sellers, PE, Facility Dynamics Engineering, Portland, Ore.

Articles

Energy, Power October 1, 2009

How to engineer 4-20 mA loops

This article discusses the what, why, and how of engineering with 4-20 mA loops. It is a summary of first two posts in a series on the topic that I started in April 2009 in my blog, "A Field Guide for Engineers."

By David Sellers, PE, Facility Dynamics Engineering, Portland, Ore.
Electrical and Power September 1, 2008

Mentoring control engineers and technicians

I always open my classes with this question: How many of you are doing today what you went to school to learn to do? It's not unusual for less than half the class to raise their hands in response.

By David Sellers, PE, Facility Dynamics Engineering, Portland, Ore.