Emerson Rosemount 3051 Manual page 112

Rosemount Model 3051 Transmitter with F
Figure C-3. Impulse Line
(Advanced Set) Screen
C-18
TM
fieldbus Protocol
OUNDATION
Impulse Line [Adv. Set]
Auto Relearn
Determines whether or not the algorithm automatically changes to
learning mode when the thresholds are exceeded. When "Enabled"
is selected the algorithm will automatically relearn when the mean
value changes by more than the Relearn Threshold value. If
"Disabled" is selected relearn must be started manually on the
Impulse Line window with the User Command.
Relearn Threshold
Is a value in % of URL of the transmitter range. If the mean has
changed by this value and Auto Relearn is "Enabled", then the
algorithm will automatically go into the learning state. If the Auto
Relearn is "Disabled" this value is ignored.
Learning Cycle
Determines the length of time the learning cycle uses to calculate
the mean and standard deviation for the baseline. If the process has
a slow change in the mean over time, a longer learning cycle may
provide a more stable value.