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

Rosemount 3051S ERS System
INSTALLATION
PROCEDURES
2-6
Reference Manual
00809-0100-4804, Rev AA
January 2011
Identify ERS Sensors A complete ERS system contains two pressure sensors. One is mounted on
the high-pressure (P HI ) process connection, and the other is mounted on the
low-pressure (P LO ) process connection. An optional remote display and
interface may also be included if ordered.
Figure 2-3. ERS P HI and P LO
Wire-On Tags
1. Look at the wire-on tag on the ERS sensor to identify whether it is
configured as the PHI or PLO sensor (see Figure 2-3)
2. Locate the second sensor that will be used in the ERS System:
• For new installations or applications, the second ERS sensor may
have been shipped in a separate box.
• If servicing or replacing part of an existing ERS system, the other
sensor may already be installed.
NOTE:
ERS sensors are shipped from the factory preconfigured such that the
primary unit (4-20 loop termination and optional LCD) is assigned as the P HI
device, and the secondary unit (junction box housing) is assigned as the P LO
device. The P HI and P LO process connection (such as at the top of a tank),
these designations may be switched electronically using a Field
communicator (page 3-12).
OR