KROHNE OPTISWITCH 5200C Namur EN - Manual (Page 14)

When used in adhesive and viscous products, the tuning fork
should protrude into the vessel to avoid buildup. For that
reason, sockets for flanges and mounting bosses should be
avoided when mounting horizontally.
If OPTISWITCH 5200 C, 5250 C is mounted in the filling
stream, unwanted switching signals may be generated. Mount
OPTISWITCH 5200 C, 5250 C at a location in the vessel
where no disturbing influence from e.g. filling openings,
agitators etc. can occur.
This applies particularly to instrument types with long
extension tube.
Fig. 8: Inflowing medium
To minimise flow resistance caused by the tuning fork,
OPTISWITCH 5200 C, 5250 C should be mounted in such a
way that the surfaces of the blades are parallel to the product
movement.
Due to agitators, vibrations or similar, the level switch can be
subjected to strong lateral forces. For this reason, do not use
an overly long extension tube for OPTISWITCH 5200 C, 5250
C, but check if you can mount an OPTISWITCH 5100 C,
5150 C level switch on the side of the vessel in horizontal
position.
Extreme vibration caused by the process or the equipment, e.
g. agitators or turbulence in the vessel can cause the extension
tube of OPTISWITCH 5200 C, 5250 C to vibrate in resonance.
This leads to increased stress on the upper weld joint. Should
Inflowing medium
Flows
Agitators
14 OPTISWITCH 5200 C, 5250 C - with NAMUR output
Mounting
30434
-EN
-060831