Serai CL/19 User manual

ERA IS
ELECTRIC/TECHNICAL DIVISION
INSTALLATION INSTRUCTIONS
DESCRIPTION: CL/19 is a level control for conductive liquids, modular enclosure (35 mm) for 46277 DIN rail.
Selection of detection sensitivity (HIGH - LOW) and functions (FILLING o DRAINING ) via microswitches.
The low alternate current applied on the sensors guarantees safety of the CL/19 and eliminates the
undesired effects of electrolysis.
SR 15.19 230V~
SR 15.49 110V~
SR 15.59 24V~
WARNING: CL/19 does not work with: DISTILLED WATER, OILS, HYDROCARBONS,
LOW CONDUCTIVITY LIQUIDS.
WIRING DIAGRAM
Microswitch 2
for selection
High sensitivity (ON)
Low sensitivity (OFF)
Microswitch 1
for selection
g (ON)
Filling (OFF)
Drainin
Relay status indicator
= energised on filling
or draining
On
Off= de-energised CL/19 on standby
GREEN LED
The following SERAI sensors can be
connected to the CL/19: R/1, R/2, R/4,
R/5, R/40, R/3A, R/3B and R/6.
If the tank is in conductive
material, terminal C (common) can be
connected directly to the tank.
WARNING:
SR 15.19 230 ÷ 240V ±10% 50/60Hz~
SR 15.49 110 ÷ 125 V ±10% 50/60Hz~
SR 15.59 24 V ±10% 50/60Hz~
Flashing= sensors in short circuit
Off= mains power off
On= mains power present
Mains power indicator led
SINCE 1965
The CL/19 is equipped with a top quality relay suitable
for virtually all applications. However, the use of
contactors is recommended to control motors with an
output higher than the specified values.
1
2
CL/19 ON
2
SELEZIONE SENSIBILITÀ
SENSITIVITY ADJUSTMENT
2
ON
ON
BASSA ALTA
LOW HI
CONTROLLO LIVELLO IN
LEVEL CONTROL
1
ON 1 ON
RIEMPIMENTO
FILLING
SVUOTAMENTO
EMPTYING
RED LED
Motors and pumps: 8A@230V~
max ½ HP
35 X 90 X 70.5mm / 144 g.
IP 20 for terminals
Power supply:
12mA - 230V~
Consumption on standby: ........................
1 changeover
Relay output: ............................................
Resistive: 10A @230V~
Applicable load: ........................................
9V~
Voltage on sensors: .................................
0,9mA Max
Current absorption of immersed sensors:
3 seconds
Activation threshold: ................................
-10 ÷ +60°C
Operating temperature: ...........................
Protection rating: .....................................
Insulation class: .......................................
Dimensions and weight: ..........................
If correctly installed, the device has no accessible parts.
SR 15.69 400V~
SR 15.69 400 ÷ 415V ±10% 50/60Hz~
m
C
A1 A2
M
NC NO
11
12 14
F
N
SR 15.19 230V~
SR 15.49 110V~
SR 15.59 24 V~
SR 15.69 400V~
CmM
E3
E2
E1
Maximum
cable length
250 m.
Section 1mm²
F/R N/S
**
*
(R)
()
(S)
-20 ÷ +70°C
Storage temperature: ...............................
95% condensate-free
Max. relative humidity: .............................
LEVEL CHECK OF CONDUCTIVE LIQUIDS
FOR FILLING OR DRAINING
CL/19
IP 40 for front panel
SINCE 1965
WARNING: If the
controlled liquid shows,
at the operating
temperature, fumes or
condensation, it is
recommended not to
use sensors with the
terminals close to each
other such as sensors
R/1 and R/2.
The condensing
humidity can cause a
bad working of the
level control.
If that is the case, it is
suggested to install
single sensors spaced,
see R/3A, R/4, R/5, R/6,
R/40 etc.

PRODUCT CATEGORYAND INTENDED USE
EUROPEAN DIRECTIVES
Electronic measurement, testing and control device.
BT:
EMC:
RoHS:
73/23/EEC + 93/68/EEC
2004/108/CE (ex 89/336/EEC)
2002/95/CE
EN 60730-1 / EN 61000-6-2
EN 61000-6-3
CEI EN 60669-1 / CEI EN 61010-1
GENERAL APPLICABLE STANDARDS
SPECIFIC PRODUCT STANDARDS
The installer is responsible for ensuring full compliance with all instructions in this manual as well as standards and legislation pertinent to the system to be created, even if not
specified herein.
GUARANTEE CONDITIONS
The company reserves the right to make modifications to the equipment without prior notice thereof. SERAI products are covered by a standard guarantee with a term of 24 months. Coverage
starts on the date on which the tax document constituting proof of purchase is issued and guarantee services shall be provided on the company's premises at Legnaro – PD – or at theAuthorised
Service Centres. Carriage costs shall be borne by the Customer. TechnicalAssistance Hotline: 049.790.295 available weekdays from 8.30 a.m. to 12.30 p.m. and 2.00 p.m. to 6.00 p.m.
ELETTRONICA PADOVA
I
SINCE 1965
PHONE: [phone]
FAX: [phone]
E-MAIL: [email protected]
WEBSITE: www.serai.com
+39
MADE IN ITALY
VIA ENRICO FERMI, 22
35020 LEGNARO - PADOVA
ITALY
WEEE DIRECTIVE 2002/96/EC
This appliance was manufactured after 13/08/2005. To protect the environment: when the equipment is no longer needed, take it to a special WEEE (Waste
Electric and Electronic Equipment) collection centre. Do not dispose of it with the normal household waste.
CE DECLARATION OF CONFORMITY
SERAI spa hereby declares that the product CL/19 has been designed and manufactured in full compliance with the above standards.
Draining: 1 ON M
m
microswitch . The liquid covers the aximum level sensor, the CL/19 activates the draining
phase which ends when the inimum sensor is above the liquid.
OPERATION
Filling: 1 OFF m
M
Microswitch . The inimum sensor is above the liquid, the level control activates the filling
phase which ends when the liquid reaches the aximum level sensor.
LOW sensitivity: 2 OFF
HIGH sensitivity: 2 ON
microswitch . The sensors detect liquids with conductivity from 500 ÷ 4 K
microswitch . The sensors detect liquids with conductivity from 4 K ÷ 150 K (e.g.
rainwater)
WW
WW
(e.g. water, milk, wine, etc.)
Example B Connection to a 3-phase pump by means of a
contactor activated by a relay contact of the CL/19.
The CL/19 is configured as DRAINING with microswitch 1
set to ON
Example A Connection to a 3-phase pump by means of a
contactor activated by a relay contact of the CL/19.
The CL/19 is configured as FILLING with microswitch 1
set to OFF
WARNING: The device must be installed exclusively by qualified personnel in accordance with current legislation and standards.
Ensure that upline of the device there is a residual current circuit breaker to enable omnipolar disconnection with a gap between contacts of 3 mm or
more. Always make connections, settings and any subsequent interventions on electrical parts with the power supply mains disconnected.
Max
Min
C
Power supply
Relay T T TTT
Filling
Relay TTT
Draining
TActivation delay Filling graph
TT
Draining graph
CL/19-E 04 02 080903 - A5Vf/r 60g/mq - IS CL/19-E
m
C
A1 A2
M
NC NO
11
12 14
CmM
E3
E2
E1
ON
1
2
F/R
N/S
T
S
R
F/R N/S
m
C
A1 A2
M
NC NO
11
12 14
CmM
E3
E2
E1
ON
1
2
F/R
N/S
T
S
R
F/R N/S