T
he process
fi
tting must be sealed if there is gauge or low pressure in
the vessel
.
B
efore use
,
check if the seal material is resistant against
the measured product and the process temperature
.
T
he max
.
permissible pressure is speci
fi
ed in chapter
"
T
echnical data
"
or on the type label of the sensor
.
T
he vibrating level switch is a measuring instrument and must be
treated accordingly
.
B
ending the vibrating element will destroy the
instrument
.
W
arning
:
T
he housing must not be used to screw the instrument in
!
A
pplying
tightening force can damage internal parts of the housing
.
U
se the hexagon above the thread for screwing in
.
4
.
2
I
nstructions for installation
F
or welded socket with
O
-
ring in front and welding marking
.
VEGASWING
51
has a de
fi
ned thread runout
.
T
his means that every
VEGASWING
51
is in the same position after being screwed in
.
R
emove therefore the supplied
fl
at seal from the thread of
VEGASWING
51
.
T
his
fl
at seal is not required when using a welded
socket with front
-
fl
ush seal
.
B
efore welding
,
unscrew
VEGASWING
51
and remove the rubber ring
from the welded socket
.
T
he welded socket is provided with a marking
(
notch
).
F
or horizontal
mounting
,
weld the socket with the notch facing upward or downward
;
in pipelines
(
DN
32
to
DN
50
)
aligned with the direction of
fl
ow
.
1
F
ig
.
5
:
M
arking on the welded socket
1
M
arking
P
ressure
/
V
acuum
H
andling
W
elded socket
12
VEGASWING
51
• -
transistor
(
PNP
)
4
M
ounting
30213
-
EN
-
120124
