Burkert Flowave 8098, Operating Instructions Manual

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217
SAW sensor – Parameter
Type 8098 FLOWave L
15.12.3 Activating the damping of the differentiation factor values and
choosing a predefined damping level
The damping makes it possible to damp the fluctuations of the measured values of the DF:
• on the display,
• on the totalizers,
• on the outputs. The damping set for an analog output comes in addition to the damping of the DF.
The damping is not applied to the new measured value, if the 2 following conditions are met:
• a
Low
,
Medium
or
High
damping level is active,
• and the variation between 2 values that are measured one after the other is higher than 30 % (for example
when changing the liquid in the pipe).
By default, the DF values are damped with the level None .
The
Low
damping level or no damping at all (
None
) are suited for applications/processes that need fast
response times.
The
Medium damping level or the High damping level are suited if the DF values change slowly.
→
As an alternative to the 3 predefined damping levels
Low
,
Medium
or
High
, you can set your own
damping parameters. See chapter 15.12.4 .
None damping: all
the fluctuations of the
measured values are
transmitted
Low damping Medium damping High damping
Chosen damping level is applied
No damping if 2 consecutive measured values vary for ±30 %
Fig. 61: Operation of the available damping levels
Table 30: Response times (10 %...90 %) of the damping levels for the DF measurements
Damping level Response time
None 0 s
Low 1 s
Medium 10 s
High 30 s
Special User-defined
Response time
: see chapter 15.12.4
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