VEGA VEGAPULS 61 (≥ 2.0.0 - ≥ 4.0.0) Foundation Fieldbus Approval according to LPR radio standard - Manual (Page 19)

Fig. 12: Alignment in silos
Align the sensor in liquids as vertical as possible to the product surface
to achieve optimum measurement results.
Fig. 13: Alignment in liquids
The mounting location of the radar sensor should be a place where no
other equipment or fixtures cross the path of the microwave signals.
Vessel installations, such as e.g. ladders, limit switches, heating
spirals, struts, etc., can cause false echoes and impair the useful echo.
Make sure when planning your measuring site that the radar sensor
has a "clear view" to the measured product.
In case of existing vessel installations, a false echo storage should be
carried out during setup.
Sensor orientation
Vessel installations
VEGAPULS 61 • Approval according to LPR radio standard 19
4 Mounting
41716
-EN
-120301