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ENGLISH
CALIBRATION
4.4.7 FILTER FUNCTION
The filter function provides a damping effect to prevent fluctuation within the output
current and display. There are 2 types of filter (fast and slow) each with 10 levels of
damping available from 0 to 9 with 0 having no damping effect.
The Fast filter is used when rapid changes within the varying flow can occur.
(In cases of quick valve shut off the slow filter will take a few seconds to reach
zero, while the fast filter will react immediately).
The Slow filter may be used in bad measuring conditions (e.g. in case
of electrical or magnetical interference, earthing problems, air bubbles in
the fluid, hard fluctuating flow, ...).
From the diagram below it is possible to see how the different filters influence the flow
output over time.
ENTER
ENTER
0......9
ENTER
0......9
FILTER
FILTER 0
FILTER 9
SLOW
FAST
Select the type of filter
4.4.7
FILTER 0 - Direct
measurement
FILTER 3
FILTER 6
FILTER 9
Fast
Slow
Fast
Slow
Fast
Slow
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