4
M
ontieren
4
.
1
M
ounting instructions
VEGATRENN
149
A E
x is constructed for carrier
rail mounting according to
EN
50022
.
T
hrough
protection
IP
20
,
the instrument is suitable for
mounting in switching cabinets
.
VEGATRENN
149
A E
x is a corresponding
,
intrinsically safe equipment and must not be
installed in hazardous areas
.
A
safe oper
-
ation is only ensured if the operating
instructions and
EG
type approval certi
fi
-
cate are observed
.
VEGATRENN
149
A E
x
must not be opened
.
A
distance of
50
mm to the intrinsically safe
terminals must be ensured when mounting
.
5
C
onnecting to voltage
supply
5
.
1
P
reparing the connection
N
ote safety instructions
G
enerally note the following safety instructions
:
l
N
ur in spannungslosem
Z
ustand anschlie
ß
en
l
I
f overvoltages or voltages peaks are ex
-
pected
,
overvoltage arresters should be in
-
stalled
S
icherheitshinweise f
ü
r
E
x
-
A
nwendungen
beachten
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
.
5
.
2
C
onnection procedure
V
oltage supply
S
tellen
S
ie vor der
I
nbetriebnahme sicher
,
dass die
S
pannungsversorgung mit den
A
ngaben auf dem
T
ypschild
ü
bereinstimmen
.
I
n the voltage range of
90
…
250
V AC
an easily
accessible switch marked as separating facility as
well as an overload protection
(
nominal current
≤
10
A
)
must be located near the instrument in the
feed cable
.
L/+
N/-
N/-
L/+
S
ensor circuit
T
he sensor must be connected to the blue
connection terminals
I
+
and
I
-
.
T
he sensor circuit of
the separator
VEGATRENN
149
A E
x is separated
from the processing circuit
.
I -
I +
+
-
-I-I
+I
+I
1
2
1
E
x area
2
N
on
-
E
x area
P
rocessing circuit
P
rocessing systems such as e
.
g
.
an indicating
instrument or a
PLC
system are connected to
terminals
O
+
/
O
-
/
O
+
H
.
I
f a
HART
handheld or an interface adapter
VEGACONNECT
is connected to the communica
-
tion sockets in the front
,
the processing system
must be connected to terminals
O
+
H
and
O
-
.
T
he
resistor necessary for
HART
communication is
already integrated in
VEGATRENN
149
A E
x with
this version
.
K
eep in mind that in this case the max
.
connectable load or load resistor reduces
(
see
"
T
echnical data
"
in the
"
S
upplement
"
).
VEGATRENN
149
A E
x
15
M
ontieren
24816
-
01
-
070216
Содержание VEGATRENN 149A EX
Страница 42: ...42 VEGATRENN 149A Ex Anexo 24816 01 070216...
Страница 43: ...VEGATRENN 149A Ex 43 Anexo 24816 01 070216...
