Specifications are subject to change without notice (25.06.99)
1
Mounting
Output
Type
Supply: 24 VAC
Supply: 115 VAC
Supply: 230 VAC
For DIN-rail
SPDT
Charge (Filling)
ELC C 024 100K
ELC C 115 100K
ELC C 230 100K
SPDT
Discharge (Emptying)
ELD C 024 100K
ELD C 115 100K
ELD C 230 100K
Level Sensors
Amplifier, Conductive
Type ELC (Charging), ELD (Discharging)
Product Description
Ordering Key
Level control relay with
max./min. control of charg-
ing or discharging. The sen-
sitivity is adjustable on ab-
Housing
Function
Type
Output
Power supply
Measuring range
Type Selection
Level control for conductive liquids
Max./min. control of charging (ELC) or discharging (ELD)
Adjustable sensitivity: 10 - 100 k
Output: 5 A SPDT
For mounting on DIN-rail in accordance with
DIN/EN 50 022
22.5 mm housing
LED-indication for relay and power supply ON
AC power supply
solute scale from 10 to 100
k
. When using only the
max. level sensor, single le-
vel control is possible.
Input Specifications
Input
through Y1 & Y2
Max. level
through Y1 & Y3
Min. level
Range
10 - 100 k
Reaction time
3 s
Repeat accuracy
20 k
(typ. 5 k
)
Sensor voltage
25 VAC/250 A (rms)
Output Specifications
Output
SPDT relay
Rated insulation voltage
250 VAC (contact/elect.)
Contact ratings (AgCdO)
Resistive loads
AC 1
5 A/250 VAC
DC 1
5 A/24 VDC
Small inductive loads AC 15
2 A/250 VAC
DC 13
3 A/24 VDC
Mechanical life
40 x 10
6
operations
Electrical life
10
5
operations
(at max. load)
Operating frequency
7200 operations/h
Supply Specifications
Power supply
Overvoltage cat. III (IEC 60664)
Rated operational volt.
through term. A1 & A2 024
24 VAC 15%
115
115 VAC 15%
230
230 VAC 15%
Frequency
50/60 Hz, -5/+5 Hz
Voltage interruption
40 ms
Dielectric voltage
2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 s)
Rated operational power
2.5 VA
ELC C 230 100K
2
Specifications are subject to change without notice (25.06.99)
ELC/ELD
General Specifications
Power ON delay
3 s
Accuracy
Max. level
-20/+50%
Min. level
50%
Drift
Temperature
1 k
/C
Supply voltage
0.5%/V
Indication for
Power supply ON
LED, green
Output ON
LED, yellow
Environment
Degree of protection
IP 20
Pollution degree
3
Operating temperature
-20 to +50C (-4 to +122F)
Storage temperature
-50 to +85C (-58 to +185F)
Dimensions
100x22.5x91.7 mm (LxWxH)
Weight
170 g
Approvals
UL, CSA (only ELC-type)
CE-marking
Yes
Mode of Operation
ELC
Relay for the control of charg-
ing of conductive liquids.
The relay operates when the
level drops below the min. lev-
el sensor.
The relay releases if the level
rises above the max. level
sensor.
Single level control is obtained
by connecting the max. level
sensor only.
ELD
Relay for the control of dis-
charging of conductive liquids.
The relay operates when the
level rises above the max. lev-
el sensor.
The relay releases when the
level drops below the min. lev-
el sensor.
Single level control is obtained
by connecting the max. level
sensor only.
Wiring Diagrams
Max.
Min.
Y2
Y3
(PE)
Y1
k
>
N
L
A2
A1
12 14
11
ELC
ELD
Operation Diagrams
ELC
ELD
Level Setting
Setting of level on absolute scale, 10-100 k
.
Max.
Min.
Y2
Y3
(PE)
Y1
k
<
N
L
A2
A1
12 14
11
Accessories
Conductive level probes:
VH, VPC, VPP, VN, VNI, VNY,
VNYI, VT, VTI, VS.
Y2-Y1
Y3-Y1
Y2-Y1
Y3-Y1
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