VEGA VEGAPULS SR 68 Foundation Fieldbus - Manual (Page 25)

25
4 Mounting
VEGAPULS SR 68 • Foundation Fieldbus
38297-EN-130624
Proceed as follows to adjust the angle of inclination with the swivelling
holder:
1. Loosen terminal screw of the swivelling holder with a fork spanner
SW 13
2. Direct the sensor, check angle of inclination
Information:
The max. angle of inclination of the swivelling holder is approx. 15°
3. Tighten the terminal screw, torque max. 20 Nm.
Information:
The hexagon screws must not be loosened.
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. 18: Cover smooth profiles with deflectors
If there are agitators in the vessel, a false signal suppression 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