VEGA VEGAPULS 66 (≥ 2.0.0 - ≤ 3.8) enamel 4 … 20 mA_HART two-wire - Manual (Page 17)

Fig. 9: Alignment in liquids
T he mounting location of the radar sensor should be a place where no
other equipment or fixtures cross the path of the microwave signals.
V essel installations such as, for example, ladders, limit switches,
heating spirals, struts, etc. can cause false echoes that get super-
imposed on the useful echo. Make sure when planning your measuring
site that the radar sensor has a "clear view" to the measured product.
I n case of existing vessel installations, a false echo storage should be
carried out during setup.
I f large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
S
mall, inclined sheet metal baffles above the installations scatter the
radar signals and prevent direct interfering reflections.
Fig. 10: Cover smooth profiles with deflectors
I f there are agitators in the vessel, a false echo storage should be
carried out with the agitators in motion. This ensures that the interfering
reflections from the agitators are saved with the blades in different
positions.
Vessel installations
Agitators
VEGAPULS 66 enamel • 4 … 20 mA/HART two-wire 17
4 M ounting
31953
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