7
M
aintenance and fault recti
fi
cation
7
.
1
M
aintenance
W
hen used as directed in normal operation
,
LBV
320
is completely
maintenance free
.
7
.
2
R
ectify malfunctions
T
he operator of the system is responsible for taking suitable measures
to rectify malfunctions
.
LBV
320
o
ff
ers maximum reliability
.
N
evertheless
,
faults can occur
during operation
.
T
hese may be caused by the following
,
e
.
g
.:
l
S
ensor
l
P
rocess
l
P
ower supply
l
S
ignal processing
T
he
fi
rst measure to be taken is to check the output signal
.
I
n many
cases
,
the causes can be determined this way and the faults recti
fi
ed
.
?
LBV
320
signals
"
covered
"
when the vibrating element is not
submerged
(
over
fi
ll protection
)
?
LBV
320
signals
"
uncovered
"
when the vibrating element is
submerged
(
dry run protection
)
l
O
perating voltage too low
à
C
heck operating voltage
l
E
lectronics defective
à
P
ress the characteristic reversal switch
.
I
f the instrument then
changes the mode
,
the instrument may be mechanically
damaged
.
S
hould the switching function in the correct mode
still be faulty
,
return the instrument for repair
.
à
P
ush the characteristic reversal switch
.
I
f the instrument then
does not change the mode
,
the electronics module may be
defective
.
E
xchange the electronics module
.
à
C
heck if there is buildup on the vibrating element
,
and if so
,
remove it
.
l
U
nfavourable installation location
à
M
ount the instrument at a location in the vessel where no dead
zones or mounds can form
.
à
C
heck if the vibrating element is covered by buildup on the
socket
.
R
eaction when malfunc
-
tions occur
C
auses of malfunction
F
ault recti
fi
cation
C
hecking the switching
signal
LBV
320
• -
NAMUR
25
7
M
aintenance and fault recti
fi
cation
35925
-
EN
-
091126
Содержание LBV 320
Страница 1: ...D F GB S B E T R I E B S A N L E I T U N G LBV 320 NAMUR EN ...
Страница 12: ...d d d 6 d 6 Abb 3 Befüllung und Entleerung mittig 12 LBV 320 NAMUR 4 Montieren 35925 DE 091125 ...
Страница 35: ...LBV 320 NAMUR 35 9 Anhang 35925 DE 091125 ...
Страница 37: ...GB O P E R AT I N G I N S T R U C T I O N S LBV 320 NAMUR ...
Страница 48: ...d d d 6 d 6 Fig 3 Filling and emptying centered 12 LBV 320 NAMUR 4 Mounting 35925 EN 091126 ...
Страница 71: ...LBV 320 NAMUR 35 9 Supplement 35925 EN 091126 ...