Vega VEGABAR 17, Руководство по эксплуатации

Страница: 21 / 36

7
M aintenance and fault recti fi cation
7
.
1
M aintenance
I
f the instrument is used properly
,
no special maintenance is required
in normal operation
.
7 . 2 R emove interferences
T
he operator of the system is responsible for taking suitable measures
to rectify faults
.
VEGABAR
17
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
.
?
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 necessary
l
O
perating voltage too low or load resistance too high
à C
heck
,
adapt if necessary
?
S
teady output signal with pressure change
l
electronics module or measuring cell defective
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
.
R eaction when malfunc -
tions occur
F ailure reasons
F ault recti fi cation
24 hour service hotline
C heck the 4 … 20 m A
signal
VEGABAR
17 21
7
M
aintenance and fault recti
fi
cation
27636
-
EN
-
120531