Figure A-8: Start-Up Sequence
A. Current, mA
B. Time, s
C. High Alarm current
D. Actual level value
E. Low Alarm current
A.2.3
4-20 mA HART
®
(output option code H)
Output
Two-wire, 4-20 mA. Digital process variable is superimposed on 4-20 mA signal, and
available to any host that conforms to the HART protocol. The digital HART
®
signal can be
used in multidrop mode.
The default output is HART Revision 5. To order HART Revision 7 factory configured, add
option code HR7. The device can also be field configured to HART Revision 7 if needed.
Signal wiring
Recommended output cabling is twisted shielded pairs, 24-12 AWG.
Rosemount 333 HART
®
Tri-Loop
™
By sending the digital HART signal to the optional HART Tri-Loop, it is possible to have up
to three additional 4–20 mA analog signals.
See the Rosemount 333 HART Tri-Loop Product Data Sheet for additional information.
Reference Manual Specifications and reference data
00809-0100-4530 April 2019
Reference Manual 281
To Next Page
Loading...
