Emerson Rosemount 644 Reference Manual page 28

Configuration
March 2021
Figure 2-9: Configuring Differential Damping 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.
2.7.2 Average temperature configuration
The Rosemount 644 Transmitter ordered and configured for dual-sensors can output and
display the average temperature of any two inputs. Use the following procedures to
configure the transmitter to measure the average temperature:
Note
This procedure assumes the average temperature is a calculated output of the device but
does not reassign it as the primary variable. If it is desired for average to be the
transmitter's primary variable see
Configure average temperature using Field Communicator
From the HOME screen, enter the Fast Key sequence.
Device Dashboard Fast Keys
Configure average temperature using AMS Device Manager
Procedure
1. Right click on the device and select Configure.
2. In the left navigation pane select Manual Setup.
3. On the Calculated Output Tab find the Average Temperature group box.
4. Select Units and Damping settings then select Apply when complete.
Configure average temperature using LOI
Procedure
• To configure average temperature on the LOI, the units and damping values must be
set separately. Reference
the menu.
28
CALIBRAT
DAMPING
VARIABLE MAP
TAG
ALARM SAT VALUES
PASSWORD
....
Mapping the HART variables
2, 2, 3, 3
Figure 2-10 and Figure 2-11
Reference Manual
00809-0200-4728
PV DAMP
SENSOR 1 DAMP
SENSOR 2 DAMP*
DIFFRNTL DAMP*
AVERAGE DAMP*
1ST GOOD DAMP**
BACK TO MENU
EXIT MENU
to set it to PV.
below for where to find these in
Emerson.com/Rosemount