Overview; Calibration - Emerson Rosemount 3051S Manual

Reference Manual
00809-0100-4802, Rev BA
August 2007
Section 5

OVERVIEW

CALIBRATION

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Rosemount 3051S Wireless Series
Operation and Maintenance
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-1
LCD Screen Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 5-6
This section contains information on commissioning and operating 3051S
Wireless Pressure Transmitters. Tasks that should be performed on the bench
prior to installation are explained in this section.
Field Communicator and AMS instructions are given to perform configuration
functions. For convenience, Field Communicator fast key sequences are
labeled "Fast Keys" for each software function below the appropriate
headings.
Calibrating a 3051S Wireless transmitter may include the following
procedures:
• Sensor Trim: Adjusts the position of the factory sensor characterization
curve to optimize performance over a specified pressure range, or to
adjust for mounting effects.
The 3051S SuperModule uses a microprocessor that contains information
about the sensor's specific characteristics in response to pressure and
temperature inputs. A smart transmitter compensates for these sensor
variations. The process of generating the sensor performance profile is called
factory sensor characterization.
Sensor trimming requires an accurate pressure input and adds additional
compensation that adjusts the position of the factory sensor characterization
curve to optimize performance over a specific pressure range.
NOTE
Sensor trimming adjusts the position of the factory sensor characterization
curve. It is possible to degrade performance of the transmitter if the trim is
done improperly or with inaccurate equipment.