System Integration - Emerson Rosemount 3408 Reference Manual

Reference Manual
00809-0100-4418
2.6

System integration

The transmitter is loop-powered, and uses the same two wires for power supply and
output signal. The output is a 4-20 mA analog signal superimposed with a digital HART
signal.
By using the optional Rosemount 333 HART Tri-Loop
converted into three additional 4-20 mA analog signals.
With the HART protocol, multidrop configuration is possible. In this case, communication
is restricted to digital, since current is fixed to the 4 mA minimum value.
The transmitter can be combined with the Emerson Wireless 775 THUM
wirelessly communicate HART data with IEC 62591 (WirelessHART
addition, the transmitter can be connected to a Rosemount 751 Field Signal Indicator, or it
can be equipped with an integral display (available with optional Bluetooth
technology).
Figure 2-3: System Architecture
A
A. Emerson Wireless 775 THUM Adapter
B. Rosemount 3408
C. Rosemount 751
D. Wireless communication using Bluetooth
E. Handheld communicator
F. Approved IS barrier (for Intrinsically Safe installations only)
G. Rosemount 333
H. Host/DCS system
I. HART modem
J. PC with Rosemount Radar Master Plus
The Rosemount 3408 is compliant with NAMUR NE 107 Field Diagnostics for standardized
device diagnostic information.
Rosemount 3408 Level Transmitter
B
™
, the digital HART signal can be
F
C
D
E
®
technology
Transmitter overview
September 2022
™
Adapter to
®
) technology. In
®
wireless
G
H
I
J
®
13