VEGA VEGAPULS WL 61 4 … 20 mA_HART - two-wire - Manual (Page 18)

18
4 Mounting
VEGAPULS WL 61 • 4 … 20 mA/HART - two-wire
38061-EN-121011
1
Fig. 14: Position of the polarisation level
1 Marking bar
When mounting the sensor, keep a distance of at least 200 mm
(7.874 in) to the vessel wall. If the sensor is installed in the center of
dished or round vessel tops, multiple echoes can arise. These can,
however, be suppressed by an appropriate adjustment (see chapter
"Setup").
If you cannot keep this distance you should carry out a false echo
storage before setup. This applies mainly if buildup on the vessel wall
is expected. In this case, we recommend repeating a false echo stor-
age later with existing buildup.
> 200 mm
(7.87")
Fig. 15: Mounting of the radar sensor on round vessel tops
In vessels with conical bottom it can be advantageous to mount the
sensor in the center of the vessel, as measurement is then possible
down to the lowest point of the vessel bottom.
Installation position