Emerson Rosemount 4600 Reference Manual page 48

Operation and Maintenance
September 2016
4.3.2 Full trim
Fast Keys
Note
Use a pressure input source that is at least three times more accurate than the transmitter,
and allow the input pressure to stabilize for ten seconds before entering any values.
Field Communicator
To calibrate the sensor with a Field Communicator using the full trim function, perform the
following procedure:
1.
2.
3.
Note
Select pressure input values so that low and high values are equal to or outside the 4 and
20 mA points. Do not attempt to obtain reverse output by reversing the high and low
points. The transmitter allows approximately five percent URL deviation from the
characterized curve established at the factory.
4.
5.
AMS Device Manger
1.
2.
3.
4.
5.
6.
7.
8.
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1, 2, 3, 3
Assemble and power the entire calibration system including a transmitter, Field
Communicator, power supply, pressure input source, and readout device.
From the Home screen, enter the Fast Key sequence shown.
Select 2: Lower sensor trim.
Follow the commands provided by the Field Communicator to complete the
adjustment of the lower value.
Repeat the procedure for the upper value, replacing 2: Lower sensor trim with
3: Upper sensor trim in Step
Right click on the device and select Calibrate, then Sensor trim from the menu
Select Lower sensor trim.
Select Next after setting the control loop to manual.
Select Next after applying appropriate pressure to sensor.
Select Next to acknowledge the loop can be returned to automatic control.
Select Finish to acknowledge the method is complete.
Right click on the device and select Calibrate. Select Sensor trim from the menu
Select Upper sensor trim and repeat
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3.
Step 2-5.
Industry Automation
Reference Manual
00809-0100-4022, Rev GA
.
Operation and Maintenance
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