5
C
onnecting to power supply
5
.
1
P
reparing the connection
A
lways observe the following safety instructions
:
l
C
onnect only in the complete absence of line voltage
I
n hazardous areas you should take note of the appropriate
regulations
,
conformity and type approval certi
fi
cates of the
sensors and power supply units
.
C
onnect the power supply acc
.
to the following diagrams
.
T
ake
note of the general installation regulations
.
A
s a rule
,
connect
VEGACAP
62
to vessel ground
(
PA
),
or in case of plastic
vessels
,
to the next ground potential
.
O
n the side of the
instrument housing there is a ground terminal between the
cable entries
.
T
his connection serves to drain o
ff
electrostatic
charges
.
I
n
E
x applications
,
the installation regulations for
hazardous areas must be given priority
.
T
he data for power supply are stated in the
"
T
echnical data
"
in
the
"
S
upplement
"
.
VEGACAP
62
is connected with standard cable with round
wire cross section
.
A
n outer cable diameter of
5
…
9
mm
(
0
.
2
…
0
.
35
in
)
ensures the seal e
ff
ect of the cable entry
.
I
f cable with a di
ff
erent diameter or wire cross section is used
,
exchange the seal or use an appropriate cable connection
.
I
n hazardous areas
,
only use approved cable connections for
VEGACAP
62
.
T
ake note of the corresponding installation regulations for
E
x
applications
.
5
.
2
C
onnection procedure
W
ith
E
x instruments
,
the housing cover may only be opened if
there is no explosive atmosphere present
.
P
roceed as follows
:
1
U
nscrew the housing cover
2
L
oosen compression nut of the cable entry
N
ote safety instructions
T
ake note of safety
instructions for
E
x
applications
S
elect power supply
S
elect connection cable
S
elect connection
cable for
E
x applica
-
tions
VEGACAP
62
-
with two
-
wire output
15
C
onnecting to power supply
30007
-
EN
-
060222
