Emerson Rosemount 3308 Series Reference Manual page 217

Reference Manual
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Figure D-8: High Level Alerts for Rising Levels
A. Level
B. Time
C. Alert ON
D. Limit
E. Deadband
F. The alert is active when the level value rises above the alert limit.
G. The alert turns off when the value falls below the deadband.
Figure D-9: Low Level Alerts for Falling Levels
A. Level
B. Time
C. Alert ON
D. Deadband
E. Limit
F. The alert is active when the level value falls below the alert limit.
G. The alert turns off when the value rises above the deadband.
Limit
The level value that will trigger the alert.
Note
Alert Limit values must be outside the Upper Null Zone, the Blind zones, and areas close to
the Blind Zones with reduced accuracy.
Deadband
An area of the Level range where no action occurs to prevent alert from activating/
deactivating too quickly.
Reference Manual
Configuration parameters
February 2020
217