SICK LBV 331, Operating Instructions Manual

Page: 59 / 72

E rror C ause R emoval
W rong mode se
-
lected
S et the correct mode on the mode
switch
(
over
fl
ow protection
,
dry run
protection
).
W iring should be carried
out according to the quiescent current
principle
.
S ignal lamp
fl
ashes red
E rror on the vi
-
brating element
C heck if the vibrating element is
damage or extremely corroded
.
I nterference on
the electronics
module
E xchanging the electronics module
instrument defec
-
tive
E xchange the instrument or send it in
for repair
D epending on the failure reason and measures taken
,
the steps
described in chapter
" S et up "
must be carried out again
,
if necessary
.
7 . 3 E xchanging the electronics module
I n general
,
all electronics modules of series VB
60
can be inter
-
changed
.
I f you want to use an electronics module with a di
ff
erent
signal output
,
you can download the corresponding operating
instructions manual from our homepage under D ownloads
.
W ith EE x d instruments
,
the housing cover may only be opened if there
is no explosive atmosphere present
.
P roceed as follows
:
1
S witch o
ff
power supply
2 U nscrew the housing cover
3
L ift the opening levers of the terminals with a screwdriver
4 P ull the connection cables out of the terminals
5
L oosen the two screws with a screw driver
(
T orx size T
10
or slot
4
)
R eaction after fault rec -
ti fi cation
LBV
331
• -
transistor
(
NPN
/
PNP
)
23
7
M aintenance and fault recti
fi
cation
39165
-
EN
-
110621