Dinel CLS-23 Manual de instruções - Página 8
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or electrodes with a length over 300 mm for the detection in nonconductive containers sensors
in vertical position must be used the auiliary electrode e.g. conductivity probe. The auxiliary
electrode is connected to the sensor housing. Recommended length of the auiliary electrode
and the distance from the sensor are shown in the picture.
uitable types of auiliary electrode probes are e.g. inel with thread.
Fig. 6: Auxiliary electrode in non-conductive tanks
7 . e
lectrical connection
or variant with the ed cable the individual colour cores of the connecting cable are con-
nected to the respective terminals of the related euipment supply unit.
or variant with the connector the cable can be supplied with the sensor length or m tted
with the pressed connector socet or dismountable connector socet without the cable see acces-
sories. n this case the cable is connected to the inside pins of the socet according to ig. .
The sensor with related euipment is interconnected by a suitable threecore variation or two
core and R variations cable. The length of the cable for the i and iT variations must be
selected with respect to the maimum permitted parameters usually inductance and capacity of
the outside intrinsically safe circuit of supply units . f using a dismountable
connector socet the outside diameter of the cable is a maimum of mm
Sensors CLS 23 are equipped with protection against over-voltages and current overload. The capacity
loads and low resistance (bulb) are evaluated by sensors with output type P and S as short circuit.
Sensors with output type R are designed for interconnect to intrinsically safe supply units.
In case of strong ambient electromagnetic interference, paralleling of conductors with power distribu-
tion, or for the distribution to distance over 30 m, we recommend to use shielded cable.
Dinel
CLS 23
Auxiliary electrode PDE 18
Electrical connection to
the sensor housing
Applies to: CLS 23_ 20, 21, 30 (for electrode length up to 300 mm)
Conductive probe
CNP 18F 30
Non-conductive tank
a
Ep >
a
E Electrode length in mm
E
E
≈
+
30
30
9