Emerson Rosemount 2051CF Quick Start Manual page 20

Quick Start Guide
5. Plug and seal unused conduit connections.
7.2 Power supply
The transmitter requires between 9 and 32 Vdc (9 and 30 Vdc for intrinsic
safety, and 9 and 17.5 Vdc for FISCO intrinsic safety) to operate and provide
complete functionality.
7.3 Power conditioner
A Fieldbus segment requires a power conditioner to isolate the power
supply, filter, and decouple the segment from other segments attached to
the same power supply.
7.4 Grounding
Signal wiring of the Fieldbus segment can not be grounded. Grounding out
one of the signal wires will shut down the entire Fieldbus segment.
7.5 Shield wire ground
To protect the Fieldbus segment from noise, grounding techniques for
shield wire require a single grounding point for shield wire to avoid creating
a ground loop. Connect the cable shields for the entire segment to a single
good earth ground at the power supply.
7.6 Signal termination
For every Fieldbus segment a terminator should be installed at the beginning
and at the end of each segment.
7.7 Locating devices
Devices are frequently installed, configured, and commissioned over time by
different personnel. A "Locate Device" capability has been provided to assist
personnel in finding the desired device.
From the device Overview screen, select the Locate Device button. This will
launch a method allowing the user to display a "Find me" message or enter a
custom message to display on the device LCD display.
When the user exits the "Locate Device" method, the device LCD display
automatically returns to normal operation.
Note
Some hosts do not support "Locate Device" in the DD.
20
March 2020