Emerson Rosemount 3051 Reference Manual page 90

Operation and maintenance
August 2019
Figure 5-1: Sensor Trim Example
A. Before trim
B. After trim
C. Zero/lower sensor trim
D. Pressure reading
E. Pressure input
F. Upper sensor trim
5.5.2 Perform a sensor trim
When performing a sensor trim, you can trim both the upper and lower limits. If you need
to perform both an upper and lower sensor trim, do the lower trim first.
Note
Use a pressure input source that is at least four times more accurate than the transmitter
and allow the input pressure to stabilize for ten seconds before entering any values.
Perform a sensor trim with a Field Communicator
To calibrate the sensor with a Field Communicator using the sensor trim function, perform
the following procedure.
Procedure
1. From the HOME screen, enter the Fast Key sequence.
2. Select Lower Sensor Trim.
90
Device Dashboard Fast Keys
Note
Select pressure points so that lower and upper values are equal to or outside the
expected process operation range. To do this, see
Reference Manual
3, 4, 1
Rerange the transmitter.
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Rosemount 3051