KROHNE OPTISWITCH 3300C Relay EN - Manual (Page 12)

Fig. 3: Inflowing medium
OPTISWITCH 3300 C can be mounted with a lock fitting for
height adjustment. Take note of the pressure information of the
lock fitting.
The vibrating element should protrude into the vessel to avoid
buildup. For that reason, avoid using mounting bosses for
flanges and screwed fittings. This applies particularly to use
with adhesive products.
In silos for bulk solids, material cones can form and change the
switching point. Please keep this in mind when installing the
sensor in the vessel. We recommend selecting an installation
location where the vibrating fork detects an average value of
the material cone.
The tuning fork must be mounted at a location that takes the
arrangement of the filling and emptying apertures into account.
To compensate measurement errors caused by the material
cone in cylindrical vessels, the sensor must be mounted at a
distance of d/6 from the vessel wall.
Lock fitting
Socket
Material cone
12 OPTISWITCH 3300 C - with relay output
Mounting
29961
-EN
-060830