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SAW sensor - Parameter
Type 8098
13.4.3
Activating a user-defined damping of the volume flow rate
values
The damping makes it possible to damp the fluctuations of the measured values of the volume flow rate:
• on the totalizers,
•
on the outputs. The damping set for an analog output comes in addition to the damping of the volume
flow.*
)
• on the liquid velocity value. The damping of the volume flow comes in addition to the damping set for the
liquid velocity.
By default, the measured volume flow rate values are damped with the level
Medium
.
To damp the fluctuations of the measured values, you can:
→
either choose 1 of the 3 predefined damping levels:
Low
,
Medium
or
High
. See chpt.
→
Or you can set your own damping parameters with the
Special
damping.
With the
Special
damping, you can set 2 parameters:
• a user-defined
Response time
in s,
•
the
Jump threshold
, i.e. a user-defined percentage. If 2 consecutive measured values vary for ± the per
-
centage, no damping is applied to the second measured value.
To set your own damping parameters of the measured volume flow rate values, do the following:
→
Select the device in the navigation area.
→
SAW sensor
→
Parameter
→
Stand. meas. values
→
Volume flow
→
Damping
The current settings are displayed.
→
Select
Special
→
Set the value of the
Response time
→
Select if the
Jump threshold
is enabled or disabled
→
If the
Jump threshold
is enabled, set the value.
The new settings are displayed
→
Finish
The special damping of the volume flow rate values is active.
*) Only variant with outputs.
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