Calibration Overview - Emerson Rosemount 3051CF Series Reference Manual

Operation and maintenance
July 2020
WARNING
Process leaks
Process leaks may cause harm or result in death.
Install and tighten process connectors before applying pressure.
WARNING
Electrical shock
Electrical shock can result in death or serious injury.
Spare parts
Replacement equipment or spare parts not approved by Emerson for use as spare parts
could reduce the pressure retaining capabilities of the transmitter and may render the
instrument dangerous.
Use only bolts supplied or sold by Emerson as spare parts.
5.3

Calibration overview

CAUTION
Emerson fully calibrates the Rosemount 3051 Pressure Transmitter at the factory.
Emerson provides a field calibration option to meet plant requirements or industry
standards.
CAUTION
Sensor calibration allows you to adjust the pressure (digital value) reported by the
transmitter to be equal to a pressure standard. The sensor calibration can adjust the
pressure offset to correct for mounting conditions or line pressure effects. Emerson
recommends this correction. Emerson does not recommend calibrating the pressure
range (pressure span or gain correction) for new instruments.
Calibrate the sensor
• Perform a calibration or sensor trim
• Perform a digital zero trim (option DZ)
5.3.1 Determine necessary sensor trims
Emerson does not recommend bench calibration for new instruments.
It is possible to degrade the performance of the transmitter if a trim is done improperly or
with inaccurate equipment. You can set the transmitter back to factory settings using the
Recall Factory Trim command shown in
94
Figure 5-3.
Reference Manual
00809-0100-4774
Rosemount 3051