16
Reference Manual
00809-0200-4728, Rev SA
Configuration
July 2018
Configuration
LOI
To configure the Differential Temperature on the LOI, the Units and Damping values must be set
separately. Reference figures below for where to find these in the menu.
Figure 2-7. Configuring Differential Units with LOI
* 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.
Figure 2-8. Configuring Differential Damping with LOI
* 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
re-assign it as the primary variable. If it is desired for average to be the transmitter’s primary variable see
“Mapping the HART variables” on page 11 to set it to PV.
Field Communicator
From the HOME screen, enter the Fast Key sequence.
Device Dashboard Fast Keys
2, 2, 3, 3
CHANGE ALL
SENSOR 1 UNITS
SENSOR 2 UNITS*
DIFFRNTL UNITS*
DIFFRNTL UNITS*
AVERAGE UNITS*
1
ST
GOOD UNITS**
BACK TO MENU
EXIT MENU
DEG C UNITS
DEG F UNITS
DEG R UNITS
KELVIN UNITS
MV UNITS
OHM UNITS
BACK TO MENU
EXIT MENU
VIEW CONFIG
SENSOR CONFIG
UNITS
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU
CALIBRAT
DAMPING
DAMPING
VARIABLE MAP
TAG
ALARM SAT VALUES
PASSWORD
....
PV DAMP
SENSOR 1 DAMP
SENSOR 2 DAMP*
DIFFRNTL
DIFFRNTL DAMP*DAMP*
AVERAGE DAMP*
1ST GOOD DAMP**
BACK TO MENU
EXIT MENU
VIEW CONFIG
SENSOR CONFIG
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXTENDED MENU
EXIT MENU
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