Frequently Asked Question

I am wondering what is the relation between process connection (remote seal, impulse line-plugging unlikely etc. ) specified on an instrument and architectural constraints please? Specifying process connection impacts the SIL achieved due to architectural
Last Updated a year ago

The process connection is another "device" that is needed to get a signal from the process to the logic solver. It is essential part of the sensing device.
The architectural constraints are applied on an element level. The element is defined roughly as a group of devices that perform a safety function. The sensor cannot be successful in performing a safety function unless the process connection is present as such the process connection is part of the element and is included in the architectural constraints evaluation.

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