Rosemount 3051S Electronic Remote Sensors - Emerson Process ...

Reference Manual
00809-0100-4804, Rev AA
January 2011
ROSEMOUNT
MANIFOLDS
Figure 2-14. Rosemount 305
Integral Manifolds
Figure 2-15. Rosemount 304
Conventional Manifolds
Rosemount 3051S ERS System
Transmitter Case
Always ground the transmitter case in accordance with national and local
electrical codes. The most effective transmitter case grounding method is a
direct connection to earth ground with minimal impedance (< 1 ohm).
Methods for grounding the transmitter case include:
• Internal Ground Connection: The Internal Ground Connection screw is
inside the terminal side of the electronics housing. The screw is
identified by a ground symbol ( ), and is standard on all 3051S
ERS transmitters.
• External Ground Connection: The External Ground Connection is on
the outside of the SuperModule housing. The connection is identified
by a ground symbol ( ).
The Rosemount 305 Integral Manifold assembles directly to an ERS sensor,
eliminating the need for the flange. The 305 is available in two designs:
Coplanar (bottom process connections) and Traditional (side process
connections).
305 COPLANAR
The Rosemount 304 Conventional Manifold assembles directly to an
instrument flange for easy servicing and retrofitting. The 304 manifold is
available in two basic styles: Traditional (flange x flange and flange x pipe)
and Wafer.
304 TRADITIONAL 304 WAFER
305 TRADITIONAL
The Rosemount 306 Manifold assembles directly to an In-Line style
transmitter and is available with male or female 1 /2-in. NPT process
connections.
2-21