6
M
aintenance and fault
recti
fi
cation
6
.
1
M
aintenance
I
f the instrument is used properly
,
no special
maintenance is required in normal operation
.
6
.
2
F
ault recti
fi
cation
F
ailure reasons
VEGABAR S
14
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
V
oltage supply
l
S
ignal processing
F
ault recti
fi
cation
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
.
24
hour service hotline
S
hould these measures not be successful
,
please
call in urgent cases the
VEGA
service hotline under
the phone no
.
+
49 1805 858550
.
T
he hotline is available to you
7
days a week
round
-
the
-
clock
.
S
ince we o
ff
er this service world
-
wide
,
the support is only available in the
E
nglish
language
.
T
he service is free of charge
,
only the
standard telephone costs will be charged
.
C
hecking the
4
…
20
m
A
signal
?
4
…
20
m
A
signal not stable
l
no atmospheric pressure compensation
à
C
heck the pressure compensation in the
plug or via the capillaries
?
N
o
4
…
20
m
A
signal
l
C
onnection to voltage supply wrong
à
C
heck connection according to chapter
"
C
onnection steps
"
and if necessary
,
correct according to chapter
"
W
iring plan
"
l
N
o voltage supply
à
C
heck cables for breaks
;
repair if neces
-
sary
l
S
upply voltage too low or load resistance
too high
à
C
heck
,
adapt if necessary
?
C
urrent signal
22
m
A
l
electronics module or measuring cell de
-
fective
à
E
xchange the instrument or send it in for
repair
I
n
E
x applications
,
the regulations for the
wiring of intrinsically safe circuits must be
observed
.
6
.
3
I
nstrument repair
I
f a repair is necessary
,
please proceed as follows
:
Y
ou can download a return form
(
23
KB
)
from our
I
nternet homepage www
.
vega
.
com under
:
"
D
own
-
loads
-
F
orms and certi
fi
cates
-
R
epair form
"
.
B
y doing this you help us carry out the repair
quickly and without having to call back for needed
information
.
l
P
rint and
fi
ll out one form per instrument
l
C
lean the instrument and pack it damage
-
proof
l
A
ttach the completed form and
,
if need be
,
also
a safety data sheet outside on the packaging
l
P
lease ask the agency serving you for the
address of your return shipment
.
Y
ou can
fi
nd
the respective agency on our website www
.
vega
.
com under
:
"
C
ompany
-
VEGA
world
-
wide
"
20
VEGABAR S
14
M
aintenance and fault recti
fi
cation
32950
-
01
-
101123