The Demand Debate! Low demand vs High demand mode of operation | exida

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The Demand Debate! Low demand vs High demand mode of operation

Recording Date: March 2018

In this webinar, we will examine:

  • Safety function definitions
  • How low, high and continuous demand rates are defined,
  • Examples of each demand mode,
  • The effects of the demand mode on your system,
  • SIL tables: high demand vs low demand
  • How proof testing can influence your demand mode and
  • PFDavg vs PFH calculations

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About the Presenter:

Loren Stewart, CFSE

Loren Stewart Loren Stewart graduated from Virginia Tech with a BSME. She has over 10 years of professional experience. She currently works for exida consulting as a safety engineer, focusing on the mechanical aspects of their customers. Along with assessing the safety of products and creating FMEDAs and reports, she researches stiction and is creating a database for the 2H initiative according to IEC 61508.