Safety Instrumented Systems Requirements; Safety Certified Identification; Installation In Sis Applications - Emerson Rosemount 2051 Reference Manual

Reference Manual
00809-0100-4107
7 Safety Instrumented Systems
Requirements
Safety Instrumented Systems (SIS) Certification
The safety-critical output of the Rosemount 2051 is provided through a two-wire, 4–20
mA signal representing pressure. The Rosemount 2051 safety certified pressure
transmitter is certified to: Low Demand; Type B.
• SIL 2 for random integrity @ HFT=0
• SIL 3 for random integrity @ HFT=1
• SIL 3 for systematic integrity
7.1

Safety certified identification

All Rosemount 2051 Transmitters must be identified as safety certified before installing
into SIS systems.
To identify a safety certified Rosemount 2051C, Rosemount 2051T, Rosemount 2051L:
Procedure
1. Check NAMUR Software Revision located on the metal device tag. "SW _._._".
2. Transmitter output code "A" (4–20 mA HART
7.2

Installation in SIS applications

Installations are to be performed by qualified personnel. No special installation is required
in addition to the standard installation practices outlined in this document. Always ensure
a proper seal by installing the electronics housing cover(s) so that metal contacts metal.
Environmental and operational limits are available in the
The loop should be designed so the terminal voltage does not drop below 10.5 Vdc when
the transmitter output is set to 23 mA.
Position the security switch to locked ( ) position to prevent accidental or deliberate
change of configuration data during normal operation.
Reference Manual
NAMUR Software Revision Number
SW 1.0.x - 1.4.x
Note
NAMUR Software Revision: Located on the metal device tag.

Safety Instrumented Systems Requirements

®
Protocol).
Product Data
September 2020
Sheet.
107