Reference Manual
00809-0100-4801, Rev FA
October 2010
Rosemount 3051S Series
7-14
Figure 7-12. Detection
Configuration screen for
Coefficient of Variation
Standard Deviation Sensitivity, Mean Sensitivity
Shows the current sensitivity level for detecting changes in standard deviation
or mean. Users can choose from preset values of High, Medium, and Low.
Custom sensitivity levels can also be configured.
Coefficient of Variation Sensitivity
Shows the current sensitivity level for detecting changes in the coefficient of
variation. Users can choose from preset values of High, Medium, and Low.
Custom sensitivity levels can also be configured.
Figure 7-13 illustrates the differences in preset sensitivity limits of High,
Medium, and Low. The preset High sensitivity setting (e.g. 20%) will cause the
SPM diagnostic to be more sensitive to changes in the process profile. The
preset Low sensitivity setting (e.g. 80%) will cause the SPM diagnostic to be
less sensitive as a much greater change in the process profile is needed to
trip the alert.
Figure 7-13. Preset sensitivity
levels
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