KROHNE OPTISWITCH 3000C NAMUR EN - Manual (Page 10)

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.).
In abrasive solids, mounting according to illustration b. has
proven. A spout forms in the concave protective sheet
preventing wear of the protective sheet.
Socket
Filling opening
10 OPTISWITCH 3000 C - with NAMUR output
Mounting
31355
-EN
-060830