B
y default
,
the potentiometer of
LBV
310
is set to the right stop
(
>
0
.
02
g
/
cm
³
or
0
.
0008
lbs
/
in
³
).
I
n case of very light
-
weight solids
,
turn
the potentiometer to the left stop
(
>
0
.
008
g
/
cm
³
or
0
.
0003
lbs
/
in
³
).
LBV
310
will thus be more sensitive and can detect light
-
weight solids more
reliably
.
W
ith the mode adjustment
(
min
./
max
.)
you can change the switching
condition of the relay
.
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
(
relay contact deenergizes when the switching point is
reached
),
because the relay always takes on the same
(
safe
)
condition
if a failure is detected
.
C
ontrol lamp for indication of the switching status
l
green
=
relay energized
l
red
=
relay deenergized
l
red
(
fl
ashing
)
=
failure
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 max
.
O
ver
fl
ow protec
-
tion
5
3
4
(8)
(6)
(7)
R
elay energized
G
reen
M
ode max
.
O
ver
fl
ow protec
-
tion
5
3
4
(8)
(6)
(7)
R
elay deenergized
R
ed
M
ode min
.
D
ry run protection
5
3
4
(8)
(6)
(7)
R
elay energized
G
reen
M
ode min
.
D
ry run protection
5
3
4
(8)
(6)
(7)
R
elay deenergized
R
ed
M
ode adjustment
(
2
)
S
ignal lamp
(
5
)
LBV
310
• -
R
elay
(
DPDT
)
19
6
S
et up
35919
-
EN
-
091126
