174
Reference Manual
00809-0100-4021, Rev JA
Certified Safety Instrumented System
April 2017
Certified Safety Instrumented System
6.3
Installation
Installation 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.
Environmental limits are available in the
Rosemount 3144P Temperature Transmitter
6.4
Configuration
Use any HART Protocol capable configuration tool to communicate with and verify the initial
configuration or any configuration changes made to the transmitter prior to operating in Safety Mode.
All configuration methods outlined in
certified transmitter with any differences noted.
Software or hardware lock must be used in order to prevent unwanted changes to the transmitter
configuration.
Note
Transmitter output is not safety-rated during the following: Configuration changes, Multidrop operation,
Simulation, Active Calibrator mode, and loop tests. Alternative means should be used to ensure process
safety during transmitter configuration and maintenance activities.
6.4.1
Damping
User-adjustable damping affects the transmitter's ability to respond to changes in the applied process.
The
damping value
+
response time
should not exceed the loop requirements.
If using a thermowell assembly, make sure to also take into account the added response due to
thermowell material.
6.4.2
Alarm and saturation levels
DCS or safety logic solver should be configured to match transmitter configuration.
identifies
the three alarm levels available and their operations values.
Summary of Contents for Rosemount 3144P
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Page 16: ...6 Reference Manual 00809 0100 4021 Rev JA Introduction April 2017 Introduction ...
Page 38: ...28 Reference Manual 00809 0100 4021 Rev JA Installation April 2017 Installation ...
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