>how i know that from manual
Siemens manual are pdf format. Open the manual in a pdf reader and search the manual for the word square, then see if any 'hits' apply to a square root function.
Only DP transmitters will have a square root function.
Can you provide a link to the "siemens sitrans P ped sep" spec sheet or manual?
The term "ped sep" appears on Siemens stainless rivet tags, but no one knows what it means.