User's Manual

50
6 Set up with the display and adjustment module
VEGAPULS 64 • 4 … 20 mA/HART - two-wire
51141-EN-160616
Thefollowingcircumstancescauseinterferingreectionsandcan
inuencethemeasurement:
•
High sockets
•
Vessel internals such as struts
•
Agitators
•
Buildup or welded joints on vessel walls
Note:
A false signal suppression detects, marks and saves these false
signals so that they are no longer taken into account in the level
measurement.
This should be done with a low level so that all potential interfering
reectionscanbedetected.
Proceed as follows:
1. Select with [->] the menu item "False signal suppression" and
conrmwith[OK].
2. Conrmagainwith[OK].
3. Conrmagainwith[OK].
4. Conrmagainwith[OK] and enter the actual distance from the
sensor to the product surface.
5. All interfering signals in this section are detected by the sensor
andstoredafterconrmingwith[OK].
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 saved in the sensor,
the following menu window appears when selecting "False signal
suppression":
Additional adjustments -
False signal suppression