Safety Instrumented Systems (Sis) Requirements; Identify Safety Certified Transmitters; Installation In Safety Instrumented Systems (Sis) Applications - Emerson Rosemount 2051 Reference Manual

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

Identify safety certified transmitters

All Rosemount 2051 Transmitters must be identified as safety certified before installing
into Safety Instrumented Systems (SIS).
To identify a safety certified 2051C, 2051T, or 2051L:
Procedure
Check NAMUR Software Revision located on the metal device tag.
NAMUR
software
revision number
Transmitter
output code
7.2 Installation in Safety Instrumented Systems
(SIS) applications
WARNING
Only qualified personnel should install the transmitter. 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
Transmitter Product Data
Design the loop so that 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.
Emerson.com
SW 1.0.x - 1.4.x
A (4–20 mA HART Protocol)
®
Sheet.

Safety Instrumented Systems (SIS) requirements

SW _._._
Rosemount 2051 Pressure
February 2024
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