VEGA VEGAPULS 66 (≥ 2.0.0 - ≥ 4.0.0) 4 … 20 mA_HART - four-wire - Manual (Page 17)

17
4 Mounting
VEGAPULS 66 • 4 … 20 mA/HART - four-wire
36520-EN-121011
Tip:
VEGAPULS 66 is optionally also available with antenna extension.
The antenna length can thus be selected such that the antenna end
protrudes 10 mm (0.4 in) out of the socket.
Align the sensor in liquids as vertical as possible to the product sur-
face to achieve an optimum measurement.
Fig. 11: 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 spi-
rals, 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.
If large vessel installations such as struts or supports cause false
echoes, these can be attenuated through supplementary measures.
Small, inclined sheet metal baffles above the installations scatter the
radar signals and prevent direct interfering reflections.
Fig. 12: Cover smooth profiles with deflectors
If there are agitators in the vessel, a false signal memory should be
carried out with the agitators in motion. This ensures that the interfer-
ing reflections from the agitators are saved with the blades in different
positions.
Sensor orientation
Vessel installations
Agitators