Instrument Loop checking is a pre-Commissioning activity initiated after installation of the field instruments
(Field devices I/O via wire ways, junction boxes, and marshaling cabinets to DCS including electrical controls, interface, and final control elements).
So, before proceeding with the Loop Testing, it is essential to have identified the location, scope, specifications, and readiness of the loop. A common practice in projects is to consolidate the applicable documentation in “Instrument Loop Folders.”
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