Reference Manual
Rosemount 4500
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.Follow the commands provided by the HART Communicator to complete the adjustment of the lower value.
5.Repeat the procedure for the upper value, replacing 2: Lower sensor trim
with 3: Upper sensor trim in Step 3.
Recall Factory Trim
Recall Factory Trim— Sensor Trim
Fast Keys | 1, 2, 3, 4, 1 |
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AMS
Right click on the device and select “Calibrate,” then “Sensor trim” from the menu.
1.Select “Lower sensor trim.”
2.Click Next after setting the control loop to manual.
3.Click Next after applying appropriate pressure to sensor.
4.Select Next to acknowledge the loop can be returned to automatic control.
5.Select Finish to acknowledge the method is complete.
6.Right click on the device and select “Calibrate,” select “Sensor trim” from the menu.
7.Select “Upper sensor trim” and repeat steps
The Recall Factory Trim commands allow the restoration of the
This command resets the transmitter sensor trim to the “as shipped” factory settings. The Recall Factory
AMS
Right click on the device and select “Calibrate,” then “Recall Factory Trim” from the menu.
1.Click Next after setting the control loop to manual.
2.Select “Sensor trim” under “Trim to recall” and click Next.
3.Click Next to acknowledge restoration of trim values is complete.
4.Select Next to acknowledge the loop can be returned to automatic control.
5.Select Finish to acknowledge the method is complete.
