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Specifications are subject to change without notice (14.12.2015) 1
Mounting Relay Ordering no. Ordering no. Ordering no.
Supply: 24 VAC/DC Supply: 115 VAC Supply: 230 VAC
DIN-rail DPDT CLD2EA1CM24 CLD2EA1C115 CLD2EA1C230
11-p circular plug CLP2EA1CM24 CLP2EA1C115 CLP2EA1C230
Conductive Sensors
2-point level controller
Type CL with potentiometer
• Conductive level controller
• Sensitivity adjustment from 250 Ω to 500 KΩ
• For filling or emptying applications
• Low-voltage AC electrodes
• Easy installation on DIN rails or with 11 pin circular
plug
• Rated operational voltage:
24 VAC/DC, 115 VAC or 230 VAC
• Output 2 x 8A/250 VAC DPDT relay
• LED indication for: Output ON and Power ON
Ordering KeyProduct De scrip tion
Max./min. control of charging/
discharging. The sensitivity
is adjustable by means of the
potentiometer and the rotary
switch.
2 x 8A DPDT relay output.
Conductive level
DIN rail or plug mounting
No of inputs
Charge/discharge
Adjustment potentiometer
Output
Relay DPDT
Power supply
µ-Processor based level
controller for liquids with a
wide sensitivity range (like
sewage water, chemicals, salt
water etc.).
Type Selection
Specifications
Rated operational voltage (UB)
Pin 2 & 10 230 195 to 265 VAC, 45 to 65 Hz
115 98 to 132 VAC, 45 to 65 Hz
Supply class 2 24 19.2 to 28.8 VAC/DC
Rated insulation voltage <2.0 kVAC (rms)
Rated impulse withstand
voltage 4 kV (1.2/50 µs) (line/neutral)
Rated operational power
AC supply 5 VA
AC/DC supply 5 VA / 5 W
Delay on operate (tV) < 300 mS
Outputs
Rated insulation voltage 250 VAC (rms) (cont./elec.)
Relay Rating (AgCdO) µ (micro gap)
Resistive loads AC1 8 A / 250 VAC (2500 VA)
DC1 1 A / 250 VDC (250 W)
or 10 A / 25 VDC (250 W)
Small induc. Loads AC15 0,4 A/ 250 VAC
DC13 0,4 A / 30 VDC
Mechanical life (typical) ≥ 30 x 106 operations
@ 18’000 imp/h
Electrical life (typical) AC1 > 250’000 operations
Level probe supply Max. 5 VAC
Level probe current Max. 2 mA
Sensitivity 250Ω to 500KΩ
Factory settings standard
range “S” 100KΩ
Ranges L (Low sensitivity) 250 Ω to 5 KΩ, CF* = 4.7 nF
Ranges S (Standard sensitivity) 5 KΩ to 100 KΩ, CF* = 2.2 nF
Ranges H (High sensitivity) 50 KΩ to 500 KΩ, CF* = 1.0 nF
Dielectric voltage >2.0 KVAC (rms)
(contacts / electronics)
Rated impulse withstand volt. 4 kV (1.2/50 µS) (contacts /
electronics) (IEC 664)
Operating frequency (f)
Relay output 0.5 HZ
Response time
OFF-ON (ton) 1 s
ON-OFF (toff) 1 s
Environment
Overvoltage category III (IEC 60664)
Degree of protection IP 20 (IEC 60529, 60947-1)
Pollution degree 2 (IEC 60664/60664A,
60947-1)
Temperature
Operating -20º to +50ºC (-4º to + 122ºF)
Storage -50º to +85ºC (-58º to +185ºF)
Housing material CLP NORYL PPO, light grey
CLD ABS VO, light grey
Screw type M3
Tightening tourque min/max 0.4Nm/0.8Nm
Weight
AC supply 200 g
AC/DC supply 125 g
UL Approvals cURus UL508, UL325, CSA-C22.2
No.247
CE marking Yes
CLD2EA1CM24
*CF = maximum Cable Capacitance
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2 Specifications are subject to change without notice (14.12.2015)
Connection cable
2, 3, or 4 conductor PVC
cable, 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 parallel 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, to an additional electrode.
(To be connected to pin Y3).
(In the diagram this electrode
is shown by the dotted line).
NB!
If only one level detection is
required - interconnect the
two inputs Y1 and Y2.
Mode of Operation
CLD2EA1CM24
A1
A2
Y1Y2Y3
2
10
(PE)
7
56
Versión DX = Versión P
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)
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Specifications are subject to change without notice (14.12.2015) 3
CLD2EA1CM24
Accessories Delivery Contents
• 11 pole circular socket ZPD11
• Retaining spring HF
• Amplifier
• Packaging: Carton box
• Manual
Dimension Drawings
Din-rail version Plug version
60,2
41,5
81
35,5
60,2
41,5
81
35,5
Wiring Diagram
Din-rail version
Conductive Level Controller
Dual Function
Sensitivity
1
2
3
10
456
8
7
9
Fill Empty
L
S
H
L
S
H
11 12 14A1Y2
A2 24 2122Y1Y3
Plug version
4
567
8
9
10
111
2
3
HI LO REF
Bottom view
Supply
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