Emerson Rosemount 4600 Reference Manual page 42

Operation and Maintenance
September 2016
Table 4-1. Recommended Calibration Tasks
Transmitter
Rosemount 4600G 1.Set output configuration parameters:
Rosemount 4600A
2.Optional: Perform a full sensor trim if
3.Optional: Perform an analog output trim
4.2.1 Calibration overview
Complete calibration of the Rosemount 4600 involves the following tasks:
Configure the output parameters



Calibrate the sensor


Calibrate the 4–20 mA output


Figure 4-1 on page 37
in four major steps:
1.
2.
3.
4.
Figure 4-1
Data flows from left to right, and a parameter change affects all values to the right of the
changed parameter.
36
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Bench calibration tasks
a. Set the range points.
b. Set the output units.
c. Set the output type.
d. Set the damping value.
equipment available (accurate absolute
pressure source required), otherwise perform
the low trim value section of the full sensor trim
procedure.
(Accurate multimeter required).
Set Process Variable Units
Rerange (page 9)
Set Damping (page 11)
Full Trim (page 42)
Zero Trim (page 41)
4–20 mA Output Trim
4–20 mA Output Trim Using Other Scale
illustrates Rosemount 4600 data flow. Data flow can be summarized
A change in pressure is measured by a change in the sensor output (Sensor Signal).
The sensor signal is converted to a digital format that is understood by the
microprocessor (Analog-to-Digital Signal Conversion).
Corrections are performed in the microprocessor to obtain a digital representation
of the process input (Digital PV).
The Digital PV is converted to an analog value (Digital-to-Analog Signal
Conversion).
also identifies the approximate transmitter location for each calibration task.
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Field calibration tasks
1.Reconfigure parameters if necessary.
2.Perform low trim value section of the full
sensor trim procedure to correct for
mounting position effects.
(page 9)
(page 44); or
(page
Reference Manual
00809-0100-4022, Rev GA
45)
Operation and Maintenance
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