
I
nformation
:
W
e recommend using lock
fi
ttings
,
meas
-
uring instrument holders and siphons from
our line of accessories
.
3
.
3
M
ounting steps
W
elding the socket
F
or mounting
VEGABAR S
14
,
a welded socket is
required
.
Y
ou can
fi
nd these components in the
VEGA
line of accessories in the supplementary
instructions manual
"
W
elded socket and seals
"
.
S
ealing
/
S
crewing in
U
se the attached seal
:
-
or
-
S
eal the thread with te
fl
on
,
hemp or a similar
resistant seal material
:
F
ig
.
10
:
I
nstallation of
VEGABAR S
14
4
C
onnecting to power supply
4
.
1
P
reparing the connection
N
ote safety instructions
A
lways keep in mind the following safety instruc
-
tions
:
l
C
onnect only in the complete absence of line
voltage
l
I
f overvoltages are expected
,
install overvolt
-
age arresters
S
elect power supply
T
he supply voltage and the current signal are
carried on the same two
-
wire connection cable
.
P
rovide a reliable separation between the supply
circuit and the mains circuits according to
DIN VDE
0106
part
101
.
VEGA
power supply units
VEGATRENN
149
AE
x
,
VEGASTAB
690
,
VEGADIS
371
as well as all
VEGAMET
s meet this requirement
.
W
hen using
one of these instruments
,
protection class
III
is
ensured for
VEGABAR S
14
.
K
eep the following additional in
fl
uences for the
operating voltage in mind
:
l
O
utput voltage of the power supply unit can be
lower under nominal load
(
with a sensor
current of
20
.
5
m
A
or
22
m
A
in case of fault
message
)
l
I
n
fl
uence of additional instruments in the circuit
(
see load values in chapter
"
T
echnical data
"
)
S
elect connection cable
VEGABAR S
14
is connected with standard two
-
wire cable
.
T
he outer cable diameter of
5
…
9
mm
ensures the seal e
ff
ect of the cable gland
.
I
f strong
electromagnetic interference is expected
,
screened cable should be used
.
C
able screening and grounding
C
onnect the cable screen on both ends to ground
potential
.
I
f potential equalisation currents are expected
,
the
connection on the processing side must be made
via a ceramic capacitor
(
e
.
g
.
1
n
F
,
1500
V
).
T
he
low frequency potential equalisation currents are
thus suppressed
,
but the protective e
ff
ect against
high frequency interference signals remains
.
4
.
2
C
onnection procedure
C
onnection via angle plug connector
P
roceed as follows
:
1
L
oosen the screw on the rear of the plug
connector
2
R
emove the plug connector and seal from
VEGABAR S
14
3
R
emove the plug insert out of the plug housing
VEGABAR S
14
17
C
onnecting to power supply
32950
-
01
-
101123
Содержание VEGABAR S 14
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