Emerson Rosemount 2051G - Safety Instrumented Systems (SIS) Certification; Rosemount 2051 G Safety Certified Identification; Installation in SIS Applications

Reference Manual
00809-0400-4101, Rev BA
Safety Instrumented Systems Requirements
January 2018
65
Safety Instrumented Systems Requirements
Section 7 Safety Instrumented Systems
Requirements
Safety Instrumented Systems (SIS) Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 65
Rosemount 2051G safety certified identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 65
Installation in SIS applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 65
Configuring in SIS applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 66
Rosemount 2051G SIS operation and mainenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 67
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 68
7.1 Safety Instrumented Systems (SIS) Certification
The safety-critical output of the Rosemount 2051G is provided through a two-wire, 4 - 20 mA signal
representing pressure. The Rosemount 2051G safety certified pressure transmitter is certified to: Low
Demand; Type B.
SIL 2 for random integrity at HFT=0
SIL 3 for random integrity at HFT=1
SIL 3 for systematic integrity
7.2 Rosemount 2051G safety certified identification
All Rosemount 2051G Transmitters must be identified as safety certified before installing into SIS
systems.
To identify a safety certified Rosemount 2051G:
1. Check Namur Software Revision located on the metal device tag. "SW _._._".
2. Verify that option code QT is included in the transmitter model code.
7.3 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 Appendix A: Reference 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.
Position the security switch to the ( ) position to prevent accidental or deliberate change of
configuration data during normal operation.
Namur Software Revision Number
SW
(1)
1.0.⫻ - 1.4.⫻
1. Namur Software Revision: Located on the metal device tag