Serai CL/19 Installation Instructions

S

INSTALLATION INSTRUCTIONS

SR 15.69 400V~
CL/19 SR 15.19 230V~
SR 15.49 110V~
SR 15.59 24V~
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.
WARNING: CL/19 does not work with: DISTILLED WATER, OILS, HYDROCARBONS,
LOW CONDUCTIVITY LIQUIDS.
Power supply:
Consumption on standby: ........................
Relay output: ............................................
Applicable load: ........................................
Voltage on sensors: .................................
Current absorption of immersed sensors:
Activation threshold: ................................
Operating temperature: ...........................
Storage temperature: ...............................
Max. relative humidity: .............................
Protection rating: .....................................
Insulation class: .......................................
Dimensions and weight: ..........................
If correctly installed, the device has no accessible parts.
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.
ON
CL/19
2
1
SELEZIONE SENSIBILITÀ
SENSITIVITY ADJUSTMENT
ON ON
2 2
BASSA ALTA
LOW HI
CONTROLLO LIVELLO IN
LEVEL CONTROL
ON ON
1 1
Relay status indicator
RIEMPIMENTO SVUOTAMENTO
On
Filling EMPTYING
Off= de-energised CL/19 on standby
E R
LEVEL CHECK OF CONDUCTIVE LIQUIDS
FOR FILLING OR DRAINING
~
SR 15.69 400 ÷ 415V ±10% 50/60Hz
~
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
12mA - 230V~
1 changeover
Resistive: 10A @230V~
Motors and pumps: 8A@230V~
max ½ HP
9V~
0,9mA Max
3 seconds
-10 ÷ +60°C
-20 ÷ +70°C
95% condensate-free
IP 20 for terminals
IP 40 for front panel
35 X 90 X 70.5mm / 144 g.
Microswitch 2
for selection
High sensitivity (ON)
Low sensitivity (OFF)
Microswitch 1
for selection
Drainin
g (ON)
Filling (OFF)
RED LED
= energised on filling
or draining
GREEN LED
Mains power indicator led
On= mains power present
Off= mains power off
Flashing= sensors in short circuit
A
ELECTRIC/TECHNICAL DIVISION

WIRING DIAGRAM

( )
* SR 15.69 400V~
SR 15.19 230V~
SR 15.49 110V~
SR 15.59 24 V~
Maximum
cable length
250 m.
Section 1mm²
C m M
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.
WARNING: If the tank is in conductive
material, terminal C (common) can be
connected directly to the tank.
I
F ( R)
*
( S)
N
*
E3 A1 A2
C F / R
N / S
NC NO
m
M
E1 E2 12 11 14
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.