Emerson Rosemount 3100 Series - System Architecture

Reference Manual
00809-0100-4840, Rev. BA
July 2008
2-3
Rosemount 3100 Series
SYSTEM
ARCHITECTURE
The Rosemount 3100 Series is loop-powered which means it uses the same
two wires for both power supply and output signal.
The transmitter can be connected to any suitable 24 Vdc power source using
two-core, shielded cable.
On The Rosemount 3101, the output is a 4–20 mA analog signal.
On The Rosemount 3102 and Rosemount 3105, the output can be a 4–20 mA
analog signal or a digital HART signal.
NOTE
It is possible to use the multidrop function with the HART protocol. In this
case, communication is restricted to digital since current is fixed to 4 mA.
The transmitter can easily be configured by using a Rosemount 3490 Series
Control Unit. Alternatively, a Field Communicator, or a PC with AMS
™
Suite:
Intelligence Device Manager software can be used to configure the
transmitter.
The transmitter can be connected to a Rosemount 751 Field Signal Indicator.
A comprehensive specification for the Rosemount 3100 Series is in the
section “Specifications” on page A-1.
Figure 2-3. System Architecture