VEGA VEGASWING 61 - Relay (DPDT) - Manual (Page 13)

13
4 Mounting
VEGASWING 61 • - Relay (DPDT)
29224-EN-130409
1
Fig. 7: Marking on the welded socket
1 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. When the hexagon touches the seal,
the thread can still be turned by approx. half a turn. This is sufficient to
reach the recommended installation position.
With flange versions, the fork is directed to 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.
If VEGASWING 61 is mounted in the filling stream, unwanted false
measurement signals can be generated. For this reason, mount VE-
GASWING 61 at a position in the vessel where no disturbances, e.g.
from filling openings, agitators, etc., can occur.
To minimise flow resistance caused by the tuning fork, VEGASWING
61 should be mounted in such a way that the surfaces of the blades
are parallel to the product movement.
Instruments with enamel coating should be treated very carefully and
shocks should be avoided. Unpack VEGASWING 61 directly before
installation. Insert VEGASWING 61 carefully into the vessel opening
and avoid touching any sharp vessel parts.
The gas-tight leadthrough avoids due to a second sealing the
uncontrolled penetration of the medium. The lifetime of the gastight
leadthrough depends ont he chemical resistance of the materials.
See "Technical data".
Caution:
If it is determined (e.g. by an error message of VEGASWING 61) that
medium has already penetrated into the vibrating element, the instru-
ment must be exchanged immediately.
Adhesive products
Inflowing medium
Flows
Enamel coating
Gas-tight leadthrough