Last month we decided it was time to upgrade the old family car.  After searching for several weeks, we decided on a very nice, 3 year-old, certified pre-owned.   While I haven’t purchased a used vehicle in several years, I felt comfortable in this decision as the price was attractive, the warranty was extended, plus I had the ...

So you’re faced with the question of whether that trusty old transmitter you’ve been using as part of your safety shutdown system can meet the “prior use” requirements described in Section 11.5.3 of ANSI/ISA-84.00.01-2004 (IEC 61511-1 Mod).  Prior use, or Proven-in-use, is defined as a documented assessment showing ...