Instrument Engineering

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Overview

We prepare instrument design drawings and specifications that define how a plant is measured and controlled — instrument index, datasheets, loop and hook-up drawings, and control-valve specifications.

Sizing and safety reviews follow ISA and IEC 61511 practice so instruments and control valves perform across the operating range.

Design work

• Instrument design drawings and instrument index.
• Instrument datasheets and specifications.
• Loop diagrams and hook-up drawings.
• Cause & effect and I/O lists.

Calculation & specification

• Control-valve sizing (Cv) and flow-element sizing.
• Relief / PSV sizing where required.
• SIL / safety instrumented function review.

Tools & standards

• ISA instrumentation standards.
• IEC 61511 (SIS/SIL); IEC 60079 area classification.