21
Reference Manual
00809-0100-4108, Rev BA
Section 2: Configuration
March 2014
Configuration
Configuring alarm and saturation levels using local operator
interface
Refer to
Figure 2-11
for instructions to configure alarm and saturation levels.
Figure 2-11. Configuring alarm and saturation with local operator interface
2.8.2
Configuring scaled variable
The Scaled Variable configuration allows the user to create a relationship/conversion between
the pressure units and user-defined/custom units. There are two use cases for Scaled Variable.
The first use case is to allow custom units to be displayed on the transmitter's LCD display/LOI
Display. The second use case is to allow custom units to drive the transmitter's 4-20 mA output.
If the user desires custom units to drive the 4-20 mA (1-5 Vdc) output, Scaled Variable must be
re-mapped as the primary variable. Refer to
“Re-mapping device variables” on page 22
.
The Scaled Variable configuration defines the following items:
Scaled Variable units - Custom units to be displayed.
Scaled data options - Defines the transfer function for the application
Pressure value position 1 - Lower known value point with consideration of linear offset.
Scaled Variable value position 1 - Custom unit equivalent to the lower known value
point.
Pressure value position 2 - Upper known value point
Scaled Variable value position 2 - Custom unit equivalent to the upper known value
point
Linear offset - The value required to zero out pressures effecting the desired pressure
reading.
EXTENDED MENU
CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU
ALARM SAT VALUES
ROSEMOUNT VALUES
NAMUR VALUES
OTHER VALUES
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXTENDED MENU
EXIT MENU
