MULTISPAN WLC 22 User manual

Model
Mounting
Input Sensor
Indications
WLC 22
Din Rail Mounting
3 nos. prods
S1 : Common
S2 : Low
S3 : High
LED 1 : Relay
LED 2 : High Level
LED 3 : Low Level
LED 4 : Mains
High & Low Level Indication Led
Sensitivity Adjustable : 1K to 200K ohm
Pump protection from Dry run & Overflow
condition
Used for drain & fill control
Trip Relay Indication
Compact & sleek design
Power Supply 100 - 270V AC,50/60 Hz,3VA
Output Rating 5Amp,230V AC(Res.)
Dimension 90 x 22.5 x 67.5
Output
1 Relay,1C/O (NO-C-NC)
Sensitivity
Reset
Trip Delay
1 to 200 Kilo ohms
Auto
0.5 sec (Approx.)
WLC 22
WATER LEVEL CONTROLLER
FEATURES
Technical Specification
Mechanical Dimension
Terminal Connection
100 to 270V AC
Smps,50/60Hz, 3 VA
NO C NC
18 15 16
Power Supply (A1 & A2):
A1 15
S1 S2
16 18
S3 A2
WLC
Connection Diagram
Supply Voltage
Output :
1 Relay 1 C/O ,
5A 230V AC (Res.)
Sensor Terminal
S1-Common
S2-Low
S3-High
Tank
90.00 47.00
22.5
66.35
S2
S3
S1

Safety Precaution
Read complete instructions prior to installation
and operation of the unit.
WARNING : Risk of electric shock.
All safety related codifications, symbols and instructions that
appear in this operating manual or on the equipment must be
strictly followed to ensure the safety of the operating personnel
as well as the instrument.
If all the equipment is not handled in a manner specified by
the manufacturer, it might impair the protection provided by the
equipment.
!
Ensurements of your WLC 22.
1) Ensure the connection as per terminal diagram.
2) To be Handle by only authorized and person.
3) Not installed near any heat sources like burner, electric arc.
4) Installed as near to the starter as possible.
5) The sensor prods are suspended from the top opening of the
water tank in PVC conduct piping. Metal pipes should not be
used.
6) The sensor prods should not be wall mounted on metallic water
tank.
7) Adjust the sensitivity of water resistance given on front plate.
Caution
WLC 22 can be operate either in SUCTION logic or in DELIVERY
logic using output relay contact terminal 15 & 18 (COM-NO),
15 & 16 (COM-NC) respectively.
Logic Selection
When you select SUCTION LOGIC using the relay contact terminals
15 & 18. Put sensor prods S1, S2 & S3 in water tank. The pump
motor will start automatically when the tank is full.
(i.e prod S1, S2 & S3 are under water )
and will stop automatically when the water tank is empty
(i.e prod S2,S3 out of water & S1 under water)
Function Of Suction Logic
When you select DELIVERY LOGIC using the relay contact terminal
15 & 16. Put sensors prods S1, S2 & S3 in water tank. The pump
motor will start automatically when the tank is empty.
(i.e prod S1 is under water S2, S3 are out of water)
and pump motor will stop automatically when the water tank
is full (i.e S1, S2 & S3 are under water).
Function Of Delivery Logic
Refer below procedure for adjusting sensitivity according to
conductivity of water.
1) Keep all prods in water and set the pot at maximum
position. Now the relay becomes ON.
2) The turns the pot towards the minimum side till the relay
becomes OFF.
3) Now to adjust the pot above setting where the relay
becomes ON and does not chatter.
NOTE :
Sensitivity Setting
Position of potentiometer is adjusted according to
conductivity level of water, Do not disturb potentiometer
setting once fixed.

One Level Controller Two Level Controller
(15-18)- SUCTION LOGIC (15-18)- SUCTION LOGIC
(15-16)- DELIVERY LOGIC (15-16)- DELIVERY LOGIC
A1 A1 15 15
S1 S1 S2 S2
16 16 18 18
S3 S3 A2 A2
WLC WLC
SR NO. SR NO.
S1+S3 S1
S1+S3
S2
S2
S2 S3
S1
S1
S2 S3
S2
S1
S2
S3
RELAY OUTPUT RELAY OUTPUT
ON ON ON
ON ON
15 15
18 18
16 16
Water Tank
Water Tank

Two Level Controller For Both Tank
A1 A115 15
S1 S1S2 S2
16 1618 18
S3 S3A2 A2
WLC WLC
S1 S1
S2 S2S3 S3S1 S1
S2 S2
S3 S3
MOTOR OUTPUT
Suction Tank Delivery Tank