Emerson Micro Motion 4200 Configuration And Use Manual page 39

Configuration and Use Manual
MMI-20048166
Options for Temperature Measurement Unit
The transmitter provides a standard set of units for Temperature Measurement Unit. Different
communications tools may use different labels for the units.
4.6.2 Configure Temperature Damping
Menu > Configuration > Process Measurement > Temperature > Damping
Display
Device Tools > Configuration > Process Measurement > Temperature > Temperature Damping
ProLink III
Configure > Manual Setup > Measurements > Temperature > Damping
Field Communicator
Temperature Damping controls the amount of damping that will be applied to temperature data from the
sensor. Temperature Damping is not applied to external temperature data.
Damping is used to smooth out small, rapid fluctuations in process measurement. The damping value
specifies the time period, in seconds, over which the transmitter will spread changes in the process variable.
At the end of the interval, the internal value of the process variable (the damped value) will reflect 63% of the
change in the actual measured value.
Procedure
Set Temperature Damping to the desired value.
• Default: 4.8 seconds
• Range: 0.0 to 80 seconds
Note
If a number greater than 80 is entered, it is automatically changed to 80.
Tip
• A high damping value makes the process variable appear smoother because the reported value changes
slowly.
• A low damping value makes the process variable appear more erratic because the reported value changes
more quickly.
• The combination of a high damping value and rapid, large changes in temperature can result in increased
measurement error.
• Whenever the damping value is non-zero, the damped value will lag the actual measurement because the
damped value is being averaged over time.
• In general, lower damping values are preferable because there is less chance of data loss, and less lag time
between the actual measurement and the damped value.
Configuration and Use Manual
Configure process measurement
April 2019
39