exida explains Blog

Entries tagged with: Iec 61511

  • by Dr. William Goble, CFSE
  • Thursday, May 12, 2011
  • Certification

Buy Certified Equipment, Meet the Standard, Right? WRONG!

Functional Safety and Taxes: Are you an expert?

Today, April 15th, is tax-day in the US.  Ok, the Internal Revenue Service (IRS) has given us a few extra days this year (the tax filing deadline is not until April 18th).

There are a lot of similarities between how you do your taxes and how you handle…

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People and Risk: The Common Enemy

In today’s modern society there is an increasing demand for “safer” products/systems, which have to meet increasingly demanding standards.  The management of “risk” is a major factor in ensuring that a product/system can meet its design objectives, as well as satisfying the required standards and, even more importantly, meeting…

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Replace Before Failure

The solenoid valve manufacturer provides an FMEDA report that lists “useful life = 12 years.”  Useful life is a reliability engineering term that indicates a point in time when the failure rate of a device will begin increasing rather rapidly.  Why do we care about this time interval?  That…

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Tales from the Certification Wars - Proven In Use versus Certification
  • by Dr. William Goble, CFSE
  • Wednesday, April 19, 2017
  • Certification

Tales from the Certification Wars - Proven In Use versus Certification

Welcome to the 2H Initiative

exida has been gathering field failure data for over a decade.  At this point we have a total of over 60 billion unit operating hours of field data for process industry devices.  This data has been used to create a 2H database for components.  exida is using this component…

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Why Personnel Functional Safety Certification Programs are Needed

The publication of the international functional safety standards IEC 61508 (1999), IEC 61511 / ISA-84 (2004) and IEC 62061 (2005) were significant milestones in the effort to increase equipment and process safety. 1,2,3  Unfortunately, the release of safety standards does not by itself make the world a safer place.…

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