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Showing Auto Dialer on P&ID

Showing Auto Dialer on P&ID

Showing Auto Dialer on P&ID

Another P&ID question. How can I show on a P&ID that a HIGH HIGH level switch not only lights a light on an auxiliary panel, but also activates an AutoDialer. Is there a balloon I can show on the P&ID to depict this?


RE: Showing Auto Dialer on P&ID

I've not run into this. I know of no way to depict it using ISA symbols unless you use X, which is the unclassified alpha character. X is intended to cover unlisted designations and seldom used. If it were me, I would put a note by the HH alarm and cover that in the notes on the P&ID and detail it on the loop sheet, if needed.

I'm sure others will have much better ideas.

Pamela K. Quillin, P.E.
Quillin Engineering, LLC

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