Vega VEGAFLEX 82 Operating Instructions Manual page 31

False signal suppression
VEGAFLEX 82 • Profibus PA
centage value. The distance refers tot he sensor reference plane (seal
surface of the process fitting).
The following circumstances cause interfering reflections and can
influence the measurement:
•
High mounting sockets
•
Vessel internals such as struts
•
Deflectors, etc.
Note:
A false signal suppression is only recommended with liquid applica-
tions.
A false signal suppression detects, marks and saves these false
signals to ensure that they are ignored in the level measurement.
This should be done with the lowest possible level so that all potential
interfering reflections can be detected.
Proceed as follows:
Enter the actual distance from the sensor to the product surface.
All interfering signals in this section are detected by the sensor and
stored.
Keep in mind that with covered probe only false signals in the uncov-
ered area of the probe are detected.
Note:
Check the distance to the product surface, because if an incorrect
(too large) value is entered, the existing level will be saved as a false
signal. The level would then no longer be detectable in this area.
If a false signal suppression has already been created in the sensor,
the following menu window appears when selecting "False signal
suppression":
6 Set up with the display and adjustment module
31