SICK LFV 330, Руководство по эксплуатации

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K eep in mind that this welded socket is not suitable for coated
instrument versions
.
S crew LFV
330
completely into the welded socket
.
T he later position
can be determined already before welding
.
M ark the appropriate
position of the welded socket
.
B efore welding
,
unscrew LFV
330
and
remove the rubber ring from the welded socket
.
T he welded socket
has a marking
(
notch
).
W eld the socket with the notch facing upward
,
or in case of pipelines
(
DN 32 up to DN 50
),
aligned with the direction
of
fl
ow
.
1
F ig .
7
: M arking on the welded socket
1
M arking
I n 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
.
O n the screwed version you will
fi
nd a marking on
the hexagon
.
W ith this
,
you can check the position of the tuning fork
when screwing it in
.
W hen the hexagon touches the seal
,
the thread
can still be turned by approx
.
half a turn
.
T his is su
ffi
cient to reach the
recommended installation position
.
W ith
fl
ange versions
,
the fork is directed to the
fl
ange holes
.
W hen used in adhesive and viscous products
,
the tuning fork should
protrude into the vessel to avoid buildup
.
F or that reason
,
sockets for
fl
anges and mounting bosses should be avoided when mounting
horizontally
.
I f LFV
330
is mounted in the
fi
lling stream
,
unwanted false measure
-
ment signals can be generated
.
F or this reason
,
mount LFV
330
at a
position in the vessel where no disturbances
,
e
.
g
.
from
fi
lling openings
,
agitators
,
etc
.,
can occur
.
T his applies particularly to instrument types with long extension tube
.
A dhesive products
I n fl owing medium
14
LFV
330
• -
contactless electronic switch
4
M ounting
35914
-
EN
-
091126