16
4 Mounting
VEGAPULS C 23 • Modbus and Levelmaster protocol
58349-EN-200806
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small,inclinedsheetmetalbaesabovetheinstallations"scatter"
theradarsignalsandpreventdirectinterferingreections.
Fig. 13: Cover at, large-area proles with deectors
In liquids, direct the device as perpendicular as possible to the me-
dium surface to achieve optimum measurement results.
Fig. 14: Alignment in liquids
If there are agitators in the vessel, a false signal suppression should
be carried out with the agitators in motion. This ensures that the
interferingreectionsfromtheagitatorsaresavedwiththebladesin
dierentpositions.
Fig. 15: Agitators
Throughtheactionoflling,stirringandotherprocessesinthevessel,
compact foams which considerably damp the emitted signals may
form on the medium surface.
If foams lead to measurement errors, you should use the biggest pos-
sible radar antennas or sensors with guided radar.
Alignment - Liquids
Agitators
F
oam generation