Which Safety Device Should I Buy?

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This article describes an end users guide to select safety devices compliant with IEC 61508 and/or 61511 and explains what it means to be compliant. The objective of this article is to describe what it takes for safety devices to be complaint with IEC 61508/61511 and will review various approaches towards compliance available in the market. This article will give an ‘order of preference’ for compliance routes and provide a step based approach for end-users to make smart safety device selection. Finally, the article will end with conclusion and recommendation. © 2014 Risknowlogy. All Rights Reserved.

Description

An end users guide to select safety devices compliant with IEC 61508 and/or 61511

Safety devices are used as part of Safety Instrumented System in many industry sectors to reduce the likelihood of events causing harm to personnel, environment and asset. End users must select safety devices that are compliant with IEC 61508 and/or IEC 61511 standards for their own peace of mind and also to be able to defend their decision to regulatory bodies. Various approaches towards compliance are used in the industry such as certification, self-declaration, proven in use etc. Do they all say the same thing? Which approach is the most comprehensive or trustworthy? End users must be able to differentiate between various approaches and be able to select safety devices that gives them high confidence for their application and environment.

A step based approach

The objective of this article is address the question which safety device should I buy? It describes what it takes for safety devices to be complaint with IEC 61508 and/or 61511 and will review various approaches towards compliance available in the market. This article will give an ‘order of preference’ for compliance routes and provide a step based approach for end-users to make smart safety device selection. Finally, the article will end with conclusion and recommendation. © 2014 Risknowlogy. All Rights Reserved.

  • Author(s): Jai Chainani, Dr. Michel J.M.Houtermans
  • Published: 2014
  • Words: 4883

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