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
.
I
n some applications
,
product buildup on the diaphragm can in
fl
uence
the measuring result
.
D
epending on the sensor and application
,
take
precautions to ensure that heavy buildup
,
and especially a hardening
thereof
,
is avoided
.
I
f necessary
,
clean the diaphragm
.
M
ake sure that the materials are
resistant to the cleaning process
,
see resistance list under
"
S
ervices
"
on
"
www
.
vega
.
com
"
.
T
he wide variety of applications of isolating
diaphragms makes special cleaning instructions necessary for each
application
.
P
lease ask the
VEGA
agency serving you
.
6
.
2
R
emove interferences
T
he operator of the system is responsible for taking suitable measures
to rectify faults
.
VEGAWELL
52
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
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
.
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
onnect a handheld multimeter in the suitable measuring range
according to the wiring plan
.
?
4
…
20
m
A
signal not stable
l
no atmospheric pressure compensation
à
C
heck the capillaries and cut them clean
M
aintenance
C
leaning
R
eaction when malfunc
-
tions occur
F
ailure reasons
F
ault recti
fi
cation
24
hour service hotline
C
hecking the
4
…
20
m
A
signal
VEGAWELL
52
•
4
…
20
m
A
21
6
M
aintenance and fault recti
fi
cation
35401
-
EN
-
111021
