4421AD1

Liquid Level Controller • Fully Automatic operation enabling both draining and filling simultaneously with a single device • Adjustable sensitivity level from 1k to 200k Ohm • Includes provision for Manual start • Protects submersible pumps against dry running and prevents overfilling • Enables maximum utilization of incoming liquid (eg. water) supply • Specially designed corrosion and shock resistant sensors to ensure trouble free operation. Ordering Information Cat. No. Description 4411AD1 110VAC, 1 C/O,1K to 200K Sensitivity, Draining & Filling 4421AD1 240VAC, 1 C/O,1K to 200K Sensitivity, Draining & Filling 4431AD1 400VAC, 1 C/O,1K to 200K Sensitivity, Draining & Filling 44S0003 Accessories, Set Of 3 Stainless Steel Sensors 44S0006 Accessories, Set Of 6 Stainless Steel Sensors 174 Liquid Level Controller 4411AD1 Cat. No. Parameters Supply Voltage ( ) Frequency Power Consumption (Max.) Device Characteristics Conductive Sensor Probes Sensor Length Control Action Modes Sensitivity Sensor Voltage & Current Sensor cable 110VAC, +/-20% 47Hz - 63Hz 3VA 4421AD1 4431AD1 240VAC, +/-20% 400VAC, +/-20% Stainless Steel SS304, 3 or 6Nos 10 cm Only Draining, Only Filling, Draining & Filling Simultaneous (One Tank or Two tanks) 1K to 200 K Ohm (Potentiometer adjustable) 12 Vp-p, 100 Hz,< 1 mA Cable gauge (Min):0.5 sq mm Tin coated, Cable dia(Min):1.5mm Max Cable Length-1000m (For set value < 50%) Max Cable Length-300m (For set value 100%) Max capacitances of wire- 80 nF / km Manual Start Switch If Lower tank water level is greater than Low level & upper tank water level is below High level then by pressing a switch Relay can be switched ON manually. Output Control Mode Contact Ratings Utilization Category Relay ON/OFF 1 C/O,8A@250VAC,Resistive,Terminal 15-Pole, Terminal 16-NC,Terminal 18-NO AC-15: Rated Voltage (Ue):120/240V, Rated Current(Ie): 3.0/1.5A DC-13: Rated Voltage (Ue):24/125/250V, Rated Current(Ie): 2.0/0.22/0.1A Electrical Life 1 x 10 Operations Mechanical Life 1 x 10 Operations LED Indication GREEN LED: Power ON, RED LED : Relay Output ON Operating Temperature Storage Temperature Relative Humidity Mounting Dimension (W x H x D) (in mm) Weight (unpacked) -10°C to +60°C -10°C to +70°C 5 to 95 % RH (non condensing) Base/DIN Rail 36 X 90 X 65 235 g (Controller), 45 g (Sensor) Certification 5 7 RoHS Compliant EMI/EMC Harmonic Current Emission ESD Radiated Susceptibility Electrical Fast Transient Surge Conducted Susceptibility Voltage Dips & Interruptions (AC) Conducted Emission Radiated Emission IEC 61000-3-2 IEC 61000-4-2 IEC 61000-4-3 IEC 61000-4-4 IEC 61000-4-5 IEC 61000-4-6 IEC 61000-4-11 CISPR 14-1 CISPR 14-1 Environmental Cold Heat Dry Heat Vibration Repetitive Shock Non-Repetitive Shock EC 60068-2-1 IEC 60068-2-2 IEC 60068-2-6 IEC 60068-2-27 IEC 60068-2-27 175 Liquid Level Controller OPERATING FUNCTION DIAGRAM Filling Control (Single Tank Monitoring with 3 Sensors) Simultaneous filling and draining with 6 Sensors L1 L2 L3 N Filling Control (Single level Monitoring with two Sensors) L N SUPPLY N Coil of Contactor / Starter coil L SUPPLY Coil of Contactor L BYPASS A1 18 16 15 A2 A1 18 16 15 A2 STOP CMN P1 P2 P3 P4 GIC GIC START AUTO LIQUID LEVEL CONTROLLER LIQUID 1K 200K LEVEL CONTROLLER 1K 200K CMN P1 P2 P3 P4 CMN P1 P2 P3 P4 MOTOR MOTOR Upper Tank Note :- In case of DOL starter connection with LLC, Connect 15 & 18 nos of Liquid level controller to 93 & 95 nos. of DOL Starter respectively The system starts up whenever the upper tank requires liquid and the lower tank has sufficient level to supply it, and it stops when the liquid reaches its maximum level in the upper tank or if the Lower tank reaches its minimum level. If all Sensors are non conducting then Relay is "OFF''. If Liquid level reaches "P1" Sensor then relay will be OFF (maintains previous state). When the level reaches "P2" Sensor then relay will be switched ON (As the liquid level has reached maximum level of Lower tank). Now Filling of Upper tank will start. When liquid level reaches "P3" Sensor, relay will be ON (maintains previous state). Now when liquid level reaches "P4" Sensor relay will be switched "OFF" (As Liquid level has reached maximum level in the Upper tank). Now if Liquid level of upper tank is decreasing and it goes below "P4" Sensor, then the relay will be "OFF" (Maintains previous state), But when it falls below "P3" level, then relay will be switched "ON" until the liquid level is more than "P1" Sensor (i.e. until there is enough liquid in the upper tank). Upper Tank When the level in the tank drops below the low level Sensor, the relay energises. The relay then remains energized until the level reaches the high level Sensor. As soon as the high level Sensor becomes submerged, the relay deenergizes and remains OFF until the level has dropped sufficiently below the low level Sensor. When "P3" & "P4" are non-conducting i.e. tank is empty, Relay is "ON". Whenever water level reaches "P3" Sensor, then again the relay will be ON (Maintains previous state of relay). But when water level touches the "P4" Sensor, then relay will be switched "OFF" (As Liquid reaches the maximum level). Again when water level decreases below "P4" level, then the relay will be switched "OFF"(Maintains previous state of relay). When water level reaches below "P3", then the relay will be switched "ON" (As the Liquid reaches minimum level) The output relay switches "ON" which starts up the relay when the Minimum level Sensor "P3" is no longer in contact with the liquid and switches "OFF" when the liquid reaches "P3". This operation is not recommended for pump controlling. COM P4 P3 Lower Tank DRAINING & FILLING P4 Upper Tank P3 COM P3 P4 CMN P2 Lower Tank P1 CMN ON A1 A2 A1 ON RELAY RELAY Relay Relay A2 A1 ON A2 MAN Switch MAN 18 15 16 18 SWITCH 15 15 18 16 16 P1 P2 P3 P4 OUT IN OUT OUT OUT OUT OUT OUT IN IN OUT OUT IN IN IN OUT ON IN IN IN IN OFF OFF ON IN IN IN OUT IN IN OUT IN OUT OUT OUT OUT OUT OUT OUT OUT Relay & RED LED Indication OFF OFF ON P3 P4 OUT OUT ON IN OUT ON IN IN OFF IN OUT OFF OUT OUT ON ON OFF 176 Relay & RED LED Indication P3 Relay & RED LED Indication OUT ON IN OFF Liquid Level Controller OPERATING FUNCTION DIAGRAM Draining Control (Single Tank Monitoring with 3 Sensors) N SUPPLY Draining Control (Single level Monitoring with two Sensors) L N L Coil of Contactor CMN P1 P2 P3 P4 A1 18 16 15 A2 GIC LIQUID LEVEL CONTROLLER 1K 200K CMN P1 P2 P3 P4 MOTOR Lower Tank COM P2 P1 The output relay switches ON, when liquid level goes above a maximum level, fixed by the Sensor "P1", when the level drops below a "P1" Sensor, relay switches "OFF". This operation is not recommended for pump controlling. COM P2 P1 When the level in the tank rises sufficiently to submerge the high level Sensor, the relay energizes. The relay then remains energized until the level has dropped below the low level Sensor. As the liquid drops below the low level Sensor, the relay deenergizes and remains off until the level has risen sufficiently to submerge the high level Sensor. When "P1" & "P2" are non-conducting i.e. when the tank is empty, relay is "OFF". Whenever water level reaches "P1" Sensor, then again the relay will be "OFF" (maintains previous state of relay). But when water level touches the "P2" Sensor, then relay will be switched "ON" (as the Liquid reaches maximum level). Again, when water level decreases below "P2" level, then the relay will remain switched "ON" (maintains previous state of relay). When water level reaches below "P1", then relay will be switched "OFF" (as the liquid reaches minimum level). A2 A1 ON RELAY MAN SWITCH 15 18 16 A2 A1 ON RELAY 18 15 P1 P2 OUT OUT OFF IN OUT OFF IN IN ON P1 IN OUT ON OUT OFF OUT OUT OFF IN ON Relay & RED LED Indication 16 177 Relay & RED LED Indication Liquid Level Controller SENSOR DIAGRAM A single pole electrode used for level control in wells or storage tanks. It comprises of stainless steel Sensor with plastic holder and cable gland. A sealed ring and cable gland prevents liquid from entering the cable terminal connector and causing its oxidation. Maximum operating temperature : -10°C to + 65°C Cable connection: Screw The external cable diameter must be 1.5 mm to warrant perfect sealing. 23.90 GLAND ACROSS FLAT CABLE 1.5mm DIA B S.S M3X6 PHILIPS HD SCREW O 19.0 96.0 B STAINLESS STEEL ROD RUBBER CAP SECTION B-B MOUNTING DIMENSIONS (mm) A2 A1 18 16 15 GIC LIQUID LEVEL CONTROLLER 1K 200K CMN P1 P2 P3 P4 TERMINAL TORQUE & CAPACITY CONNECTION DIAGRAM Supply Connection A1 I/P Supply 110/240/400VAC +/-20% SPDT Relay Connection 15 18 A2 16 1 C/O,8A@250VAC Resistive 178