What is the official name seal or sensor?
The official name is "Rosemount 3051S Electronic Remote Sensors". It is possible to construct an ERS system without the secondary seal. There are many process connections available with 3051S ERS. Please go to the link to find out more about Rosemount 3051S Electronic Remote Sensors:
www2.emersonprocess.com/.../index.aspx
Anshuman Prasad
Director of Integrated Marketing, Rosemount Measurement and Analytical