5
C
onnecting to power supply
5
.
1
P
reparing the connection
A
lways keep in mind the following safety instructions
:
l
C
onnect only in the complete absence of line voltage
C
onnect the power supply according to the following diagrams
.
O
scillator
CAP E
31
R
is designed in protection class
1
.
T
o
maintain this protection class
,
it is absolutely necessary that
the ground conductor be connected to the internal ground
terminal
.
T
ake note of the general installation regulations
.
A
s a
rule
,
connect
VEGACAP
27
to vessel ground
(
PA
),
or in case
of plastic vessels
,
to the next ground potential
.
O
n the side of
the housing there is a ground terminal between the cable
entries
.
T
his connection serves to drain o
ff
electrostatic
charges
.
Y
ou can
fi
nd data on voltage supply in chapter
"
T
echnical
data
"
in the
"
S
upplement
"
.
VEGACAP
27
is connected with standard cable with round
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 gland
.
I
f cable with a di
ff
erent diameter or wire cross section is used
,
exchange the seal or use an appropriate cable connection
.
N
ote
:
W
hen placing the housing cover
,
make sure that the inspection
glass is above the signal lamp of the oscillator
.
5
.
2
W
iring plan
,
single chamber housing
W
e recommend connecting
VEGACAP
27
in such a way that
the switching circuit is open when there is a level signal
,
line
break or failure
(
safe condition
).
T
he relays are always shown in non
-
operative condition
.
T
he two relays
(
DPDT
)
work synchronously
.
H
ence it is
possible to control also e
.
g
.
a horn and a magnet valve
.
N
ote safety instructions
S
elect power supply
S
electing connection cable
W
iring plan
14
VEGACAP
27
- -
double relay
(
DPDT
)
C
onnecting to power supply
33758
-
EN
-
070809
Summary of Contents for VEGACAP 27
Page 1: ...Operating Instructions VEGACAP 27 double relay DPDT Capacitive ...
Page 13: ...Fig 4 Inflowing medium VEGACAP 27 double relay DPDT 13 Mounting 33758 EN 070809 ...
Page 34: ...Supplement 34 VEGACAP 27 double relay DPDT 33758 EN 070809 ...
Page 35: ...Supplement VEGACAP 27 double relay DPDT 35 33758 EN 070809 ...