KROHNE OPTISWITCH 3000C NAMUR EN - Manual (Page 11)

To achieve a very precise switching point, you can install
OPTISWITCH 3000 C horizontally. However, if the switching
point can have a tolerance of a few centimeters, we
recommend mounting OPTISWITCH 3000 C approx. 20°
inclined to the vessel bottom to avoid buildup.
20°
a. b.
Fig. 4: Horizontal mounting
a Protective sheet
b Concave protective sheet for abrasive solids
If OPTISWITCH 3000 C is mounted in the filling stream,
unwanted switching signals may be generated. Mount OPTI-
SWITCH 3000 C at a location in the vessel where no disturbing
influence from e.g. filling openings, agitators etc. can occur.
To minimise flow resistance caused by the tuning fork,
OPTISWITCH 3000 C should be mounted in such a way that
the surfaces of the blades are parallel to the product
movement.
Horizontal mounting
Inflowing medium
Flows
OPTISWITCH 3000 C - with NAMUR output 11
Mounting
31355
-EN
-060830