User Manual

Connection cable
2, 3, or 4 conductor PVC
c
able, normally screened.
Cable length: max. 100 m.
The resistance between the
cores and the ground must
be at least 500k. Normally, it
is re commended to use a
screened cable between
probe and controller, e.g.
where the cable is placed in
p
arallel to the load cables
(mains). The screen has to be
connected to Y3 (reference).
Example 1
The diagram shows the level
control connected as max.
and min. control. The re lays
react to the low alternating
current created when the
electrodes are in contact
with the liquid.
The reference (Ref) must be
connected to the container
or if the container consists
of a non-conductive mater ial,
t
o an additional electrode.
(To be connected to pin Y3).
(In the diagram this electrode
is shown by the dotted line).
NB!
I
f only one level detection is
required - interconnect the
two inputs Y1 and Y2.
2 Specifications are subject to change without notice (13.08.2010)
Mode of Operation
CLD2EA1CM24
A1
A2
Y1Y2Y3
2
10
(PE)(PE)
7
5
6
D
-version X = P-version
12 14
11 21
24
1
3
11
9
X
4
22
8
Ref
Relay 1 Relay 2
Lo
Hi
Y3
Y3
Level
Level
Relay ON [11-14] (1-3)
Relay ON [11-14] (1-3)
Y1
Y1
Y2
Y2
Power supply ON
Power supply ON
Emptying
Filling
Time
Time
Fill
Empty
L
S
H
L
S
H
Fill
Empty
L
S
H
L
S
H
[D-version] (P-version)