Emerson Rosemount 3051P, Reference Manual, Page: 63 / 110

53
Reference Manual
00809-0700-4001, Rev AA
Operation and Maintenance
May 2017
Operation and Maintenance
Performing 4–20 mA output trim using local operator interface
Figure 5-6. 4–20mA Output Trim using Local Operator Interface
5.6.2 Performing digital-to-analog trim (4–20mA output trim) using
other scale
The scaled 4–20 mA output Trim command matches the 4 and 20 mA points to a user selectable
reference scale other than 4 and 20 mA [for example, 2 to 10 volts if measuring across a 500
Ω
load, or 0
to 100 percent if measuring from a Distributed Control System (DCS)]. To perform a scaled 4–20 mA
output trim, connect an accurate reference meter to the transmitter and trim the output signal to scale,
as outlined in the output trim procedure.
Performing a 4–20 mA output trim using other scale with a Field
Communicator
From the HOME screen, enter the Fast Key sequence and follow the steps within the Field Communicator
to complete the 4–20 mA output trim using other scale.
Performing a 4–20 mA output trim using other scale with AMS Device
Manager
1. Right click the device and under the Method drop down menu, move cursor over Calibrate and select
Analog Calibration .
2. Select Scaled Digital to Analog Trim .
3. Follow screen prompts to perform a 4–20mA output trim.
5.6.3 Recalling factory trim—analog output
The Recall Factory Trim—Analog Output command allows the restoration of the as-shipped factory
settings of the analog output trim. This command can be useful for recovering from an inadvertent trim,
incorrect Plant Standard or faulty meter.
Recalling factory trim - analog output with a Field Communicator
From the HOME screen, enter the Fast Key sequence and follow the steps within the Field Communicator
to complete the digital to analog trim using other scale.
Device Dashboard Fast Keys
3, 4, 2, 2
Device Dashboard Fast Keys
3, 4, 3
EXTENDED MENU
CALIBRAT CALIBRAT
DAMPING
TRANSFER FUNCT
SCALED VARIAB
ASSIGN PV
TAG
ALARM SAT VALUES
PASSWORD
SIMULATE
HART REV
BACK TO MENU
EXIT MENU
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU EXTENDED MENU
EXIT MENU
CALIBRAT
ZERO TRIM
LOWER TRIM
UPPER TRIM
ANALOG TRIM ANALOG TRIM
FACTORY RECALL
BACK TO MENU
EXIT MENU