VEGA VEGASWING 66 - transistor (NPN-PNP) With SIL qualification - Manual (Page 13)

13
4 Mounting
VEGASWING 66 • - transistor (NPN/PNP)
44951-EN-130805
weight of the instrument. Transport coated instruments very carefully
and avoid touching the tuning fork.
Remove the packaging or the protective cover just before installation.
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 the instrument in! Applying
tightening force can damage internal parts of the housing.
Use the hexagon above the thread for screwing in.
4.2 Mounting instructions
The thread and the seal on the threaded version of VEGASWING 66
correspond to DIN 3852 part 1, screwed plug Form B (sealing via
metallic sealing edge).
Use screw-in openings or screw-in sleeves according to DIN 3852
part 2.
For mounting, proceed as follows:
1. Screw the VEGASWING 66 into the mounting boss up to the stop.
You can determine the later position already before welding.
2. Mark the position of the VEGASWING 66 on the mounting boss.
3. Mark the respective position of the mounting boss on the vessel
or pipeline.
In case of lateral mounting, make sure the mark on the spanner
flat of VEGASWING 66 points upwards.
When mounting in pipelines, make sure that the surfaces of the
tuning fork are parallel to the direction of flow.
4. Remove the VEGASWING 66 from the mounting boss before
welding.
5. Weld the mounting boss according to your marking.
In case of horizontal mounting in adhesive and viscous products,
the surfaces of the tuning fork should be vertical in order to reduce
buildup on the tuning fork. On the screwed version you will find a
marking on the hexagon. With this, you can check the position of the
tuning fork when screwing it in.
In the case of flange versions, the fork is aligned with the flange holes.
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.
The process fitting must be sealed if there is gauge or low pressure in
the vessel. Before use, check if the seal material is resistant against
the measured product and the process temperature.
Handling
Welded socket
Adhesive products
Pressure/Vacuum