SICK LFV 330, Руководство по эксплуатации

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W ith the mode adjustment
(
A
/
B
)
you can change the switching
condition of the relay
.
Y ou can set the required mode according to the
" F unction chart " (
A
-
max
.
detection or over
fl
ow protection
,
B
-
min
.
detection or dry run protection
).
W ith this DIL switch
(
3
)
you can set the switching point to liquids
having a density between
0
.
5
and
0
.
7
g
/
cm
³
(
0
.
018
and
0
.
025
lbs
/
in
³
).
W ith the basic setting
,
liquids with a density of
>
0
.
7
g
/
cm
³
(
0
.
025
lbs
/
in
³
)
can be detected
.
I n liquids with lower density
,
you must set the
switch to
>
0
.
5
g
/
cm
³
(
0
.
018
lbs
/
in
³
).
T he speci
fi
cations for the position
of the switching point relate to water
-
density value
1
g
/
cm
³
(
0
.
036
lbs
/
in
³
).
I n products with a di
ff
erent density
,
the switching point will shift in
the direction of the housing or tuning fork end depending on the
density and type of installation
.
N ote :
K eep in mind that foams with a density
>
0
.
45
g
/
cm
³
(
0
.
016
lbs
/
in
³
)
are
detected by the sensor
.
T his can cause faulty switchings particulary
when used as dry run protection system
.
6 . 3 F unctional chart
T he following chart provides an overview of the switching conditions
depending on the adjusted mode and level
.
L
evel
S
witching status
C
ontrol lamp
M ode A
O ver
fl
ow protection
2 1
S witch closed G reen
M ode A
O ver
fl
ow protection
2 1
S witch open R ed
M ode B
D ry run protection
2 1
S witch closed G reen
M ode B
D ry run protection
2 1
S witch open R ed
M ode adjustment ( 2 )
S
ensitivity adjustment
( 3 )
22
LFV
330
• -
contactless electronic switch
6
S et up
35914
-
EN
-
091126