SICK LBV 331, Руководство по эксплуатации

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A s a default setting
,
the potentiometer of LBV
331
is set to the
complete right position
( >
0
.
3 g
/
cm ³
/
0
.
011 lbs
/
in ³
).
I n very light solids
you have to turn the potentiometer to the complete left position
(
0
.
02
…
0
.
1
g
/
cm
³
or
0
.
0007
…
0
.
0036
lbs
/
in
³
).
B y doing this
,
LBV
331
will be more sensitive and light solids can be detected more reliably
.
F or instruments detecting solids in water
,
these settings are not
applicable
.
T he switching point adaptation is preset and must not be
changed
.
W ith the mode adjustment
(
min
./
max
.)
you can change the switching
condition of the transistor output
.
Y ou can set the required mode
according to the
" F unction chart " (
max
. -
max
.
detection or over
fl
ow
protection
,
min
. -
min
.
detection or dry run protection
).
W e recommend connecting according to the quiescent current
principle
(
switching output is opened when the switching point is
reached
)
because the transistor output takes on the same
(
safe
)
condition if a failure is detected
.
C ontrol lamp for indication of the switching status
l
G reen
=
O utput closed
l
R ed
=
O utput open
l
red
( fl
ashing
) =
failure
6 . 3 F unction 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 max
.
O ver
fl
ow protec
-
tion
closed
G reen
M ode max
.
O ver
fl
ow protec
-
tion
open
R ed
M ode min
.
D ry run protection
closed
G reen
M ode min
.
D ry run protection
open
R ed
M ode adjustment (
2
)
S ignal lamp ( 5 )
20
LBV
331
• -
transistor
(
NPN
/
PNP
)
6
S et up
39165
-
EN
-
110621