ISA TR84.00.03-2002
- Guidance for Testing of Process Sector Safety Instrumented Functions (SIF) Implemented as or Within Safety Instrumented Systems
- standard by The International Society of Automation, 06/17/2002
- Category: ISA
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This technical report is an informative document providing guidance on performing testing of SIFcomponents and systems that will help achieve full safety benefits of the SIF in the most cost-effectiveway. Both manual and automated techniques are presented for off-line and on-line testing of SIF and thebenefits of each technique described. Existing techniques and proposed new techniques will bedescribed. Utilizing the techniques described in conjunction with an overall safety management programwill allow users to meet the testing requirements of ANSI/ISA-84.01-1996 and dIEC 61511. Techniquesare described for testing all elements of the SIF including field sensors, final control elements, logicsolvers (signal conversion modules included), Human Machine Interface (HMI), communication links withother systems, user application software, and other required auxiliaries such as power. Suggestedinspection techniques for regular observation of equipment and components to detect potential problemsare also presented.
The techniques described can also be used for testing burner management systems in conjunction withthe NFPA 85 code.
These techniques are illustrated by the examples given in Annexes A-MM. Each Annex is an exampleof how one company might apply a given technique, and is not intended to represent a consensussolution within the process industry.
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