7Section 7: Safety Instrumented Systems Requirements; Safety Instrumented Systems (Sis) Certification; Rosemount 2051 Safety Certified Identification; Installation In Sis Applications - Emerson Rosemount 2051 Reference Manual

Reference Manual
00809-0100-4107, Rev BA
Section 7
Safety Instrumented Systems (SIS) Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 93
7.1

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
7.1.1

Rosemount 2051 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:
1.
Namur Software Revision Number
SW
(1) Namur Software Revision: Located on the
2.
7.1.2

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
.
Data
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.
Safety Instrumented Systems Requirements
Safety Instrumented Systems
Requirements
Check Namur Software Revision located on the metal device tag. "SW _._._".
(1)
metal device tag
Transmitter Output Code "A" ( 4-20 mA HART).
Section 7: Safety Instrumented Systems Requirements
1.0.x - 1.4.x
Appendix A: Specifications and Reference
April 2013
93