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Safety equipment qualification

12.01.2011  |  Goble, W.,  exida LLC, Sellersville, Pennsylvania

Keywords: [safety] [safety equipment] [safety certified] [instrumentation] [PLC] [DCS] [valves] [safety standards]

During a functional safety assessment of a packaged equipment manufacturer, the issue of instrumentation equipment qualification came up on the audit checklist. The IEC 61511 standard requires that all equipment used in a safety instrumented function be justified based on having either met requirements of IEC 61508 (IEC 61508 certified) or “prior use” experience.

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