KROHNE OPTISWITCH 3100C NAMUR EN - Manual (Page 11)

The vibrating level switch is a measuring instrument and must
be treated accordingly. Bending the vibrating element will
destroy the instrument.
Warning:
The housing must not be used to screw in the instrument!
Applying tightening force on the housing can damage its
internal mechanical parts.
To screw in, use the hexagon above the thread.
4.2 Mounting instructions
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.
Mount the instrument in such a way that the tuning fork does
not protrude directly into the filling stream.
20°
a. b.
Fig. 3: Horizontal mounting
a Convex mounting
b Concave mounting
If such an installation location should be necessary, mount a
suitable protective sheet above or in front of the vibrating
element - see illustration a.).
Handling
Socket
Filling opening
OPTISWITCH 3100 C - with NAMUR output 11
Mounting
31356
-EN
-060830