Documentation records must reflect items out on plant to demonstrate compliance and ultimately uphold safety; and accurate loop drawings are an essential part of this.
As part of our inspection work we check that what is installed matches the existing drawings. If there are discrepancies, we bring these to your attention and can revise them as part of the process.
Our interest in terms of DSEAR will primarily be related to the hazardous area. An Intrinsic Safety Diagram may be the most effective way of depicting and recording the safety essentials of a full instrument loop.