W
arning
:
W
ithin galvanic plants as well as vessels with cathodic corrosion
protection there are considerable potential di
ff
erences
.
C
onsiderably
equalisation currents can be caused via the cable scrren when the
screen is earthed on both ends
.
T
o avoid this
,
the cable screen must
only connected to ground potential on one side of the switching
cabinet in such applications
.
T
he cable screen must
not
be connected
to the internal ground terminal in the sensor and the outer ground
terminal on the housing
not
to the potential equalisation
!
I
nformation
:
T
he metallic parts of the instrument
(
antenna
,
transmitter
,
concentric
tube
,
etc
.)
are conductively connected with the inner and outer ground
terminal on the housing
.
T
his connection exists either as a direct
metallic contact or via the shielding of the special connection cable on
instruments with external electronics
.
Y
ou can
fi
nd speci
fi
cations on
the potential connections within the instrument in chapter
"
T
echnical
data
"
.
T
ake note of the corresponding installation regulations for
E
x
applications
.
5
.
2
C
onnection procedure
P
roceed as follows
:
1
W
ire the connection cable up to the connection compartment
3
)
2
C
onnect the wire ends to the screw terminals according to the
wiring plan
P
roceed as follows
:
1
S
nap
VEGABOX
02
onto the carrier rail or screw it to the mounting
plate
2
L
oosen the cover screws and remove the cover
3
P
ush the cable into
VEGABOX
02
through the cable entry
4
L
oosen the screws with a screwdriver
5
I
nsert the wire ends into the open terminals according to the wiring
plan
6
T
ighten the screws with a screwdriver
7
C
heck the hold of the wires in the terminals by lightly pulling on
them
8
T
ighten the compression nut of the cable entry
.
T
he seal ring must
completely encircle the cable
9
C
onnect the supply cable according to steps
3
to
8
3
)
T
he connection cable is already preconfectioned
.
A
fter shortening the ca
-
ble
,
fasten the type plate with support again to the cable
.
S
elect connec
-
tion cable for
E
x
applications
D
irect connection
C
onnection via
VEGABOX
02
VEGAWELL
52
•
4
…
20
m
A
17
5
C
onnecting to power supply
35401
-
EN
-
111021
