Emerson Rosemount 3051S Technical Note page 3

Technical Note
00840-1000-4801, Rev AA
April 2011
Next, select both a Sensitivity Level and an Action for
a Mean Change detection. It is recommended that
the detection action be set to "Relearn" because if
the process conditions (e.g. flow rate) change, this
could also cause a change in the process dynamics
(standard deviation). To avoid this causing a false
detection, the SPM should learn the new process
dynamics characteristics.
Figure 8. Selecting Sensitivity Level and Action for a Mean
Change Detection
Finally, click OK at the message "Loop may be
returned to automatic control" to complete the
method.
Figure 9. Completing SPM Setup
Rosemount 3051S
Configuring the Power Advisory
Diagnostic
Configuration of the Power Advisory diagnostic can
also be done within the Guided Setup menu. Use the
menu keys to enable and configure the Power
Advisory diagnostic:
Configure (2) > Guided Setup (1) > Diagnostics
Setup (2) > Power Advisory (2)
IMPORTANT:
During the Loop Characterization the current output
of the pressure transmitter will momentarily drive to 4
mA and 20 mA. Ensure that all operational
procedures (e.g. placing control loop in manual
mode) are followed before beginning the Loop
Characterization.
Click OK to proceed with the Power Advisory
configuration.
Figure 10. Power Advisory Configuration
Select "Yes" to perform the Loop Characterization.
While the Characterization is in progress, you will
see an hour glass icon on the screen.
Figure 11. Performing Loop Characterization
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