Siemens SITRANS L Operating Instructions Manual page 155

Threaded connection markings
Threaded connection markings are found on the flat face/faces of the process connection.
Serial number: a unique number allotted to each process connection, including the date of
manufacture (MMDDYY) followed by a number from 001 to 999.
SITRANS LR200 with PROFIBUS PA
Operating Instructions, 07/2021, A5E32337680-AF
11.1 Uni-construction polypropylene rod antenna
Dimension drawing
155