1
2
3
F
ig
.
2
:
F
unctional principle
-
P
late capacitor
1
D
istance between the electrode surfaces
2
S
ize of the electrode surfaces
3
T
ype of dielectric between the electrodes
T
he probe and the vessel wall are the capacitor plates
.
T
he
measured product is the dielectric
.
D
ue to the higher dielectric
constant
(
DK
value
)
of the product compared to air
,
the
capacitance increases as the probe is gradually covered
.
T
he capacitance change is converted by the oscillator into a
switching command
.
VEGACAP
27
is a compact instrument
,
i
.
e
.
it can be operated
without external evaluation system
.
T
he integrated electronics
evaluates the level signal and outputs a switching signal
.
W
ith
this switching signal
,
a connected device can be operated
directly
(
e
.
g
.
a warning system
,
a
PLC
,
a pump etc
.).
Y
ou can
fi
nd data on voltage supply in chapter
"
T
echnical
data
"
in the
"
S
upplement
"
.
3
.
3
O
peration
T
he probe can be adapted to the dielectric value of the product
directly on the electronics module
.
A
switching command can be triggered when the probe is
covered or laid bare
.
O
n the electronics module you will
fi
nd the following indicating
and adjustment elements
:
l
C
ontrol lamp for indication of the switching condition
l
P
otentiometer for switching point adaptation
(
covered
)
l
DIL
switch for mode adjustment
S
upply
VEGACAP
27
- -
double relay
(
DPDT
)
9
P
roduct description
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 ...