Emerson Rosemount 2051 Reference Manual page 88

Operation and Maintenance
September 2020
Performing a sensor trim with AMS Device Manager
Right click the device and, under the Method drop down menu, move cursor over Calibrate
and, under Sensor Trim, select Lower Sensor Trim.
Procedure
1. Follow the screen prompts to perform a sensor trim using AMS Device Manager.
2. If desired, right select the device and under the Method drop down menu, move
Performing a sensor trim using LOI
Perform an upper and lower sensor trim by referencing
Figure 5-3: Sensor trim with LOI
Performing a digital zero trim (option DZ)
A digital zero trim (option DZ) provides the same function as a zero/lower sensor trim, but
can be completed in hazardous areas at any given time by simply pushing the zero trim
button when the transmitter is at zero pressure. If the transmitter is not close enough to
zero when the button is pushed, the command may fail due to excess correction. If
ordered, a Digital Zero Trim can be performed by utilizing external configuration buttons
located underneath the top tag of the transmitter, see
Procedure
1. Loosen the top tag of the transmitter to expose buttons.
2. Press and hold the digital zero button for at least two seconds, then release to
5.7.3 Recall factory trim—sensor trim
The recall factory trim-sensor trim command allows the restoration of the as-shipped
factory settings of the Sensor Trim. This command can be useful for recovering from an
inadvertent zero trim of an absolute pressure unit or inaccurate pressure source.
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cursor over Calibrate and under Sensor Trim and select Upper Sensor Trim.
VIEW CONFIG
ZERO TRIM
UNITS
RERANGE
LOOP TEST
DISPLAY
EXTENDED MENU
EXIT MENU
perform a digital zero Trim.
Figure 5-3.
EXTENDED MENU
CALIBRAT
CALIBRAT
DAMPING ZERO TRIM
TRANSFER FUNCT
LOWER TRIM
SCALED VARIAB UPPER TRIM
ASSIGN PV
ANALOG TRIM
TAG FACTORY RECALL
ALARM SAT VALUES
BACK TO MENU
PASSWORD EXIT MENU
SIMULATE
HART REV
BACK TO MENU
EXIT MENU
Figure 5-1
Rosemount 2051 Pressure Transmitter
Reference Manual
00809-0100-4107
for DZ button location.