VEGA VEGASWING 66 - two-wire With SIL qualification - Manual (Page 15)

15
4 Mounting
VEGASWING 66 • - two-wire
44952-EN-130805
Fig. 9: Inflowing medium
To make sure the tuning fork of VEGASWING 66 generates as little
resistance as possible to product flow, mount the sensor so that the
surfaces are parallel to the product movement.
Due to the effects of agitators, equipment vibration or similar, the level
switch can be subjected to strong lateral forces. For this reason, do
not use an overly long extension tube (optional) for VEGASWING 66,
instead check if it is possible to mount a short level switch VEGAS-
WING 66 on the side of the vessel in horizontal position.
Extreme vibration or tremors, caused e.g. by agitators or turbulence
in the vessel, can make the long extension tube of VEGASWING 66
vibrate in resonance. This leads to increased stress on the upper weld
joint. Should a longer tube version be necessary, you can provide a
suitable support directly above the tuning fork to secure the extension
tube.
This measure applies mainly to applications in Ex areas of category
1G or WHG as well as to ship classifications. Make sure that the tube
is not subject to bending stress due to this measure.
Fig. 10: Lateral suppot of VEGASWING 66
Flows
Agitators