ISA Symbol

Greetings,

Does anyone know the ISA (or other) designation for an ultrasonic sensor? ISA designates "US" for a utility station. The ultrasonic sensor I'm using is measuring distance, so perhaps "DS" for distance sensor? Any ideas?

TIA,

Greg

Why not "DT" for distance transmitter

I have some IEC symbols see attached

Hi MordredGreg doesn't want the symbol, he wants the "designation for an ultrasonic sensor".
the page you attached is part of a 1652 page documment "IEC 60617"
with all the IEC symbols

Here is an ISA chart that I have posted before.

http://www.plctalk.net/qanda/attachment.php?attachmentid=5391

ISA tag nomenclature ususally refers to measured variable, not the instrumentation method, dimension sensors use the first letter Z whether they be prox, ultrasonic, laser, mechanical limit switch, etc. Subsequent letters describe the instrument function but not necessarily the instrumentation method. So the ultrasonic distance sensor would be ZT-### for a transmitter, or ZS-### for a switch, also ZSL-### for a low switch, ZSH-### for a high switch, etc.

sorry my mistake guess I misunderstood the Question