White Papers: Intrinsic Safety

Why We Need to Know the Basics

As you may have noticed, my blog posts are often triggered by questions and real life situations.  That is the case with today’s post. Some manufacturer’s web sites are VERY difficult to navigate.  Due to this fact, I will sometimes ask for sales or technical assistance instead of wasting too much time searching a vendor web site Read more…

Safety Barriers and Thermocouples

Why do I need safety barriers when I’m using thermocouples? It meets the definition of a simple apparatus.  I think the barrier sales people are simply looking for more sales! When I was asked this question, I thought I could use this example to provide some insight into the requirements of intrinsic safety systems. An Read more…

Mark Mathews

Senior Specialist in the Controls and Instrumentation Mark Mathews joined Excel in 2011 as a Senior Specialist in the Controls & Instrumentation discipline.  He has 23 years of experience in providing control system solutions to 3M and a broad array of other clients.  In that time, he has developed project execution skills that begin with Read more…

Intrinsic Safety Standards Update

ISA S12.2 subcommittee meeting report Spring, 2012 The work of harmonizing the Hazardous Area national standards of the United States with those of the international community continue in earnest. The ultimate goal of this harmonization is that products produced and approved in the US can be exported and installed in other countries, and vice versa. Read more…