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Reference Manual
00809-0200-4728, Rev RA
Section 7: Safety Instrumented Systems (SIS) Certification
April 2015
Safety Instrumented Systems (SIS) Certification
4.
You can also identify a certified 644 by its Device Revision which can be found using any
HART compliant communicator.
For the 644, certified device revisions are as follows:
–
Device Revision 8.x (HART 5)
–
Device Revision 9.x (HART 7)
7.3
Installation in SIS application
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.
The loop should be designed so the terminal voltage does not drop below 12 Vdc when the
transmitter output is 24.5 mA.
7.4
Commissioning
The 644 Safety Certified Transmitter can be commissioned by a person with competent
knowledge of Rosemount temperature transmitters and the configuration device being used.
Refer to
to confirm your system's HART Revision capability and to
confirm the installation of the correct device drivers (separate drivers required for HART 5 and
HART 7).
To commission the 644 Safety Certified Transmitter using a 375/475 Field Communicator, use
the
.
Namur Software Revision Number
SW
(1)
(1) Namur Software Revision: Located on the adhesive device
tag.
1.1.x
Summary of Contents for Rosemount 644
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