Systems engineering and instrument design

Safety instrumented system audits provide beneficial information to plant management, instrument maintenance engineers and instrument design engineers. This enables management to be proactive and aware of the degree of implementation and effectiveness of their safety instrumented systems. Many types of audits, which can be carried out exist. The actual type, scope, and frequency of the audit of any specific activity should reflect the potential impact of the activity on the safety integrity. 

Used to present mechanical-type details to piping and mechanical vessel designers, electrical engineers, instrument engineers, and other engineers not directly in need of process details. This sheet contains pipe sizes, all valves (sizes and types), temperature points, and special details needed to insure a common working basis for all persons on a project. In some engineering systems. 

Users should get involved in the qualification process whenever possible. The qualification exercise provides a very good learning opportunity for users to work with the service engineer and learn more about the system s design and functions. Users will gain valuable experience with regard to operation and maintenance of the instrument. 

Considine, D. M. Process Instruments and Controls Handbook (McGraw-Hill, New York, 1957). Doebelin, E. O. Measurement Systems Application and Design, 4th edn (McGraw-Hill, New York, 1990). Miller, R. W. Flow Measurement Engineering Handbook (McGraw-Hill, New York, 1983). 

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