Operation And Maintenance; Overview; Safety Messages; Pressure Signal Trimming - Emerson Rosemount Reference Manual

Reference Manual
00809-0100-4145
4

Operation and maintenance

4.1

Overview

This section contains information on commissioning and operating Rosemount
Pressure Gauges.
Field Communicator and AMS Device Manager instructions are provided for convenience.
4.2

Safety messages

Procedures and instructions in this section may require special precautions to ensure the
safety of the personnel performing the operation. Information that raises potential safety
issues is indicated with a warning symbol (
before performing an operation preceded by this symbol.
4.3

Pressure signal trimming

Calibrating a Rosemount
adjust for mounting effects.
Sensor trimming requires an accurate pressure input and adds additional compensation
that adjusts the position of the factory trim to optimize performance over a specific
pressure range.
Note
Sensor trimming adjusts the position of the factory trim. It is possible to degrade the
performance of the gauge if the trim is done improperly or with inaccurate equipment.
CAUTION
Absolute pressure devices are calibrated at the factory. Trimming adjusts the position of
the factory characterization curve. It is possible to degrade performance of the device if
any trim is done improperly or with inaccurate equipment.
Table 4-1: Recommended Calibration Tasks
Measurement type
Gage
Compound
Vacuum
Emerson.com/Rosemount
). Refer to the following safety messages
™
Smart Pressure Gauge may include the sensor trim procedure to
Tasks
1. Reconfigure parameters if necessary.
2. Zero trim the device to compensate for mounting effects or static pressure
effects.
3. Optional: Perform a sensor trim. (Accurate pressure source required.)
Operation and maintenance
September 2019
™
Wireless
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