Optional Devices - Emerson Rosemount 3408 Reference Manual

Electrical installation
September 2022
12. Connect the power supply.
4.5

Optional devices

4.5.1 Rosemount
The Rosemount 3408 outputs a HART signal with four process variables. By using the
Rosemount 333 HART Tri-Loop, up to three additional analog 4-20 mA outputs are
provided.
Each Tri-Loop channel receives power from control room. Channel 1 must be powered for
the Tri-Loop to operate.
The transmitter receives power from control room.
36
b) Attach and tighten the cover.
Note
Make sure the cover is fully engaged. There should be no gap between the
cover and the housing.
c) Turn the jam screw counterclockwise until it contacts the cover.
Note
Required for explosion-proof/flameproof installations only.
d) Turn the jam screw an additional ½ turn counterclockwise to secure the
cover.
™
333 HART
H2.5 mm
® ™
Tri-Loop
Reference Manual
00809-0100-4418
Emerson.com/Rosemount