16
4 Mounting
VEGAPULS 11 • Two-wire 4 … 20 mA
58350-EN-221027
Orientation
Due to respective socket design or with an alignment device, the
device can be easily aligned to the vessel centre. The necessary
angle of inclination depends on the vessel dimensions. It can be
easily checked with a suitable bubble tube or mechanic's level on the
sensor.
d
a
α
Fig. 14: Proposal for installation after orientation VEGAPULS 11
The following table shows the necessary angle of inclination. It
depends on the measuring distance and the distance "a" between
vessel centre and installation position.
Distance d (m) 2°
4°
6°
8°
10°
2
0.1
0.1
0.2
0.3
0.4
4
0.1
0.3
0.4
0.6
0.7
6
0.2
0.4
0.6
0.8
1.1
8
0.3
0.6
0.8
1.1
1.4
Example:
In a vessel 8 m high, the installation position of the sensor is 0.6 m
from the vessel centre.
The necessary angle of inclination of 4° can be read out from this
table.
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.
Agitators
