A
s a default setting
,
the potentiometer of
LBV
321
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
321
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
.
T
he characteristics reversal can be carried out with the
DIL
switch
.
Y
ou can choose between falling characteristic curve
(
switch position
max
.)
and rising characteristic curve
(
switch position min
.).
T
his allows
you to output the desired current
.
M
odes
l
min
. -
rising characteristic curve
(
H
igh current when immersed
)
l
max
. -
falling characteristics
(
L
ow current when immersed
)
T
he
NAMUR
output can be switched over to falling or rising
characteristics
(
see also
"
F
unction chart
"
).
T
he simulation key is located in a recess on the upper side of the
electronics module
.
P
ush the simulation key with a suitable object
(
screwdriver
,
pen
,
etc
.).
W
hen the key is pushed
,
a line break between sensor and processing
unit is simulated
.
T
he signal lamp on the sensor extinguishes
.
T
he
measuring system must signal a fault and take on a safe condition
when the key is pushed
.
K
eep in mind that downstream connected instruments will be activated
during operation
.
T
his allows you to check the correct function of the
measuring system
.
C
ontrol lamp
(
LED
)
for indication of the switching condition
l
yellow
=
H
igh current
≥
2
.
4
m
A
l
dark
=
L
ow current
≤
1
m
A
l
yellow
(
fl
ashing
)
=
F
ailure
≤
1
m
A
6
.
3
F
unction chart
L
evel switch
LBV
321
T
he following chart provides an overview of the switching conditions
depending on the adjusted mode and level
.
N
ote
:
T
he mode setting on the
NAMUR
ampli
fi
er must be selected in such a
way that the switching output takes on safe condition in case of failure
(
I
≤
1
m
A
).
C
haracteristics reversal
(
2
)
S
imulation key
(
3
)
S
ignal lamp
(
6
)
20
LBV
321
• -
NAMUR
6
S
et up
39163
-
EN
-
110621
Summary of Contents for LBV 321 NAMUR
Page 1: ...D F GB S B E T R I E B S A N L E I T U N G LBV 321 NAMUR...
Page 35: ...LBV 321 NAMUR 35 9 Anhang 39163 DE 110617...
Page 37: ...GB O P E R AT I N G I N S T R U C T I O N S LBV 321 NAMUR...
Page 48: ...d d d 10 d 10 Fig 3 Filling and emptying centred 12 LBV 321 NAMUR 4 Mounting 39163 EN 110621...
Page 71: ...LBV 321 NAMUR 35 9 Supplement 39163 EN 110621...
