Emerson Rosemount 3144P Reference Manual page 50

HART Commissioning
December 2019
How it works:
Take away:
Target
applications:
Configure Hot Backup in guided setup
Enable Hot Backup in guided setup: Fast Keys 2-1-5
Procedure
1. From the Home Screen, select 2 Configure.
2. Select 1 Guided Setup.
3. Select 5 Config Hot Backup.
50
Two sensors are wired to a dual-input transmitter. The two sensors
are measured in alternating fashion, so when sensor 1 failure is
detected, the transmitter can immediately switch the output to
reflect the sensor 2 value. The switch is automatic with no disruption
to the analog output. The transmitter sends a digital alert to inform
the users that the Hot Backup feature is active and the primary sensor
needs investigation.
"The Hot Backup feature prevents primary sensor failure from
disrupting process control."
Redundant measurements, critical measurements, trouble spots.
Reference Manual
00809-0100-4021
Rosemount 3144P