Emerson Rosemount 644 Reference Manual page 32

Configuration
March 2021
Configure sensor drift alert using Field Communicator
The Field Communicator will guide you through a method to correctly configure the
necessary elements of a sensor drift alert feature.
From the HOME screen, enter the Fast Key sequence.
Device Dashboard Fast Keys
Configure sensor drift alert using AMS Device Manager
Procedure
1. Right click on the device and select Configure.
2. On the Diagnostics Tab find the Sensor Drift Alert group box.
3. Select to Enable the Mode and fill in the Units, Threshold and Damping values from
4. Select Apply when complete.
Configure sensor drift alert using LOI
To configure sensor drift alert on the LOI, enable the mode, then set the PV, drift limit, and
value for drift alert damping all separately. Reference figure below for where to find these
in the menu.
Figure 2-13: Configuring Sensor Drift Alert with LOI
VIEW CONFIG
SENSOR CONFIG
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU
* Available only if option code (S) or (D) is ordered.
** Available only if option codes (S) and (DC) are both ordered, or if option codes (D) and
(DC) are both ordered.
Note
Enabling the drift alert option to WARNING will set a flag (through the HART
communications) whenever the maximum acceptable difference between Sensor 1 and
Sensor 2 has been exceeded. For the transmitter's analog signal to go into ALARM when
drift alert is detected, select alarm during the configuration process.
32
the drop downs provided or select the Configure Sensor Drift Alert button and
walk through the guided steps.
2, 1, 6
CALIBRAT
DAMPING
VARIABLE MAP
TAG
ALM SAT VALUES
PASSWORD
SIMULATE
HART REV
HOT BACK CONFIG**
DRIFT ALERT**
....
Reference Manual
00809-0200-4728
DRIFT MODE
DRIFT LIMIT
DRIFT UNITS
DRIFT DAMP
BACK TO MENU
EXIT MENU
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