Floatless Level Switch (Basic Type) 61F-G@ CSM_61F-G__DS_E_4_1 Basic Building-block Controllers That Mount Directly to Panels for Easier Maintenance * Easy maintenance with building-block Relay Units. * Easy identification of operating status with LED operation indicator. * Lineup includes models for tropical regions and for high temperatures. Achieve stable detection even in hightemperature environments. Refer to Safety Precautions for Floatless Level Controllers. Model Number Structure 61F-@@ 1 2 1. Control Application G: Automatic water supply and drainage G1: Automatic water supply with idling prevention or water shortage alarm G2: Automatic water supply and drainage with abnormal water increase alarm G3: Automatic water supply and drainage with full tank and water shortage alarm G4: Automatic water supply with water level indicator for water supply tank and water receiving tank and prevention of idling due to water shortage I: Liquid level indication and alarm (no two-wire models) 2. Type Blank: L 2KM: L 4KM: H: D: R: T: Position of LED indicator General-purpose Long-distance (for 2 km) Long-distance (for 4 km) High-sensitivity Low-sensitivity Two-wire High-temperature Ordering Information Type Application G General-purpose Long-distance, 2 km Long-distance, 4 km Model Model Model Model 61F-GL 2KM 61F-GL 4KM 61F-GH Application G1 61F-G1 61F-G1L 2KM 61F-G1L 4KM 61F-G1H Application G2 61F-G2 61F-G2L 2KM 61F-G2L 4KM 61F-G2H Application G3 61F-G3 61F-G3L 2KM 61F-G3L 4KM 61F-G3H Application G4 61F-G4 61F-G4L 2KM 61F-G4L 4KM 61F-G4H Application I 61F-I 61F-IL 2KM 61F-IL 4KM 61F-IH Relay Unit 61F-11 61F-11L 2KM 61F-11L 4KM 61F-11H Type 61F-G High-sensitivity Low-sensitivity 2-wire Tropical environments Model Model Model Model 61F-GR 61F-G-TDL 61F-GT Application G1 61F-G1D 61F-G1R 61F-G1-TDL 61F-G1T Application G2 61F-G2D 61F-G2R 61F-G2-TDL 61F-G2T Application G3 61F-G3D 61F-G3R 61F-G3-TDL 61F-G3T Application G4 61F-G4D 61F-G4R 61F-G4-TDL 61F-G4T Application G 61F-GD High-temperature Application I 61F-ID --- 61F-I-TDL 61F-IT Relay Unit 61F-11D 61F-11R --- 61F-11T Note: When ordering, specify the desired operating voltage at the end of the model number. Example: 61F-G [110/220 VAC] Desired supply voltage 1 61F-G@ Specifications Standard Models Specifications Items General-purpose Controller Hightemperature Controller 61F-@ (TDL) (see note 1 and 2) Long-distance Controllers High-sensitivity Controllers Low-sensitivity Controller Two-wire Controller 61F-@L 2KM (for 2 km) 61F-@L 4KM (for 4 km) (see note 1) 61F-@H (see note 1) 61F-@D (see note 1) 61F-@R (see note 1) For control of ordinary purified water in cases where the distance between sewage pumps and water tanks or between receiver tanks and supply tanks is long or where remote control is required. For control of liquids with high specific resistance such as distilled water For control of liquids with low specific resistance such as salt water, sewage water, acid chemicals, alkali chemicals For control of ordinary purified water or sewage water used in combination with Two-wire Electrode Holder (incorporating a resistor of 6.8 k) It is possible to wire with less than one wiring against general 61F's wiring. 24 VAC 8 VAC 61F-@T (see note 1) Controlling materials and operating conditions For control of ordinary purified water or sewage water For control of ordinary purified water or sewage water in cases where the ambient temperature is high. Supply voltage 100, 110, 120, 200, 220 or 240 VAC; 50/60 Hz Operating voltage range 85% to 110% of rated voltage InterElectrode voltage 8 VAC InterElectrode current Approx. 1 mA AC max. Power consumption 61F-G@: 3.5 VA max.; G1F-G1@, G1F-G2@, or G1F-I@: 5.5 VA max.; G1F-G3@: 7.5 VA max.; G1F-G4@: 14.5 VA max. InterElectrode operate 0 to approx. 4 k resistance 0 to approx. 1.8 k (for 2 km) 0 to approx. 0.7 k (for 4 km) Approx. 15 k to 70 k (see note 5) 0 to approx. 1.8 k InterElectrode release Approx. 15 k to Approx. 15 k to resistance 4 k to (for 2 km) 2.5 k to (for 4 km) Approx. 300 k to Approx. 5 k to Approx. 15 k to Cable length (see note 3) 1 km max. 2 km max. 4 km max. 50 m max. 1 km max. Control output 2 A, 220 VAC (Inductive load: cos = 0.4) 5 A, 220 VAC (Resistive load) Ambient temperature Operating: -10 to 55C (-10 to 70C for 61F-@T) Ambient humidity Operating: 45% to 85% RH 100 M min. (at 500 VDC) Insulation resistance (see note 4) 0 to approx. 5 k 600 m max. 0 to approx. 1.1 k 800 m max. Dielectric strength (see note 4) 2000 VAC, 50/60 Hz for 1 min. Life expectancy Electrical: 500,000 operations min. Mechanical: 5,000,000 operations min. Weight 61F-G@: Approx. 380 g, G1F-G1@, G1F-G2@, or G1F-I@: Approx. 750 g; G1F-G3@: Approx. 930 g; G1F-G4@: Approx. 1,710 g Note: 1. The @ in the model name represents G, G1, G2, G3, G4, and I. 2. The suffix "TDL" attached to the model name represents models designed for tropical regions (storage humidity of 45% to 90%). For details, refer to Safety Precautions for Floatless Level Controllers. 3. The length when using completely-insulated, 600-V, 3-conductor (0.75 mm2) cabtire cables. Usable cable lengths will become shorter as the cable diameter or number of conductors becomes larger. For details, refer to Safety Precautions for Floatless Level Controllers. 4. The insulation resistance and dielectric strength indicate values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals. 5. Possible to use with 15 k or less, however, this may cause reset failure. 6. High-sensitivity Controllers use advanced operation. When the power supply voltage is applied, if there are some liquids between the electrodes (ground and operation electrodes), the internal relay will not operate. When the power supply voltage is applied, if there are no liquids between the electrodes (ground and operation electrodes), the internal relay will operate. * Advanced Operation With advanced operation, the internal relay operates as soon as control power is supplied to the G1F and is reset when current flows between the poles. Wiring is the same as for models with sequential operation. 2 61F-G@ Internal Circuit Diagrams The schematic diagrams shown below typify the internal connections of the various 61F models. The designations Ta, Tb, and Tc (sometimes referred to collectively as "U") may occur more than once in a product, however, the "a" terminal is always an NO contact, a "b" terminal is an NC contact, and the "c" terminal is the common terminal. 61F-GT 61F-G 0V 100, 110 or 120 V 200, 220 or 240 V 24 V 61F-GL 0V 100, 110 or 120 V 200, 220 or 240 V 61F-11 U Relay Unit 8V 24 V 8V U S0 Tb S1 E2 E1 S2 Ta E3 Tc S0 24 V 8V U Tb S1 E2 S2 24 V Tc S0 E3 Tb S1 E2 S2 E1 E3 61F-GR 0V 100, 110 or 120 V 200, 220 or 240 V 61F-11H U Relay Unit Ta E1 61F-GD 61F-GH (See note.) 0V 100, 110 or 120 V 200, 220 or 240 V 61F-11L U Relay Unit U U Tc 24 V U U Ta 0V 100, 110 or 120 V 200, 220 or 240 V 61F-11T U Relay Unit 24 V 0V 100, 110 or 120 V 200, 220 or 240 V 61F-11D U Relay Unit 8V 24 V 61F-11R U Relay Unit 8V U U U Ta S0 U U U Tc Tb S1 E2 S2 E1 E3 Ta S0 Tc Tb S1 E2 S2 E1 E3 Ta S0 Tc Tb S1 E1 S2 E3 3 61F-G@ Note: The 61F11H relay deenergizes when there is water present across the Electrodes, whereas the 61F relay energizes when there is water present across the Electrodes. Also, the terminal connections of those Controllers provided with LED indicators differ from those which have no indicators. 61F-11 Relay Units Item 61F-11 61F-11T 61F-11L 61F-11H 61F-11D 61F-11R Interchangeable with --general-purpose model (61F-11) Provided Provided Not provided Provided Not provided Color of band on name --plate Red Yellow Blue Black Green 61F-11T 61F-11 E S 8 S 7 8V 6 24 V E S S S 5 8 7 6 5 8V Tr2 Tb2 Ta2 Tc2 1 Tc1 3 Ta1 61F-11H (see note) E S S S 8 7 6 5 24 V 24 V 9 10 Tb1 Tb2 Tr2 61F-11D 4 6 2 Tc1 24 V 5 Tb1 4 24 V Tr2 X x 3 Ta1 S Tr1 X E S S S 8 7 6 5 24 V x 9 10 11 1 2 3 Tb2 Ta2 Tc2 Tc1 Ta1 Tb1 E S S S 8 7 6 8V Tr2 24 V 10 11 1 2 3 9 10 11 1 2 Ta2 Tb2 Tc2 Tc1 Tb1 Ta1 Tb2 Ta2 Tc2 Tc1 Ta1 Tr2 x x 9 5 3 Tb1 4 24 V Tr1 X x x 4 24 V Tr1 X x Tr2 1 Tc2 8V Tr2 S 7 61F-11R 24 V Tr1 S 8 x 11 Ta2 E 8V x 2 4 24 V Tr1 x 11 24 V X x 10 4 24 V Tr1 9 61F-11L S X x 9 10 11 1 2 3 Tb2 Ta2 Tc2 Tc1 Ta1 Tb1 4 61F-G@ Connections Automatic Water Supply and Drainage Control Basic Type 61F-G Dimensions: page 13 Automatic Water Supply Control Automatic Drainage Control Connections Connections 61F-G 220-VAC power supply R S T 24 V 110 V MCCB 8V 220 V 61F-11 Relay Unit 61F-G 220-VAC Power supply R S T 0V 0V U U MCCB 61F-11 Relay Unit U U U Tc S0 8V 220 V U Ta 24 V 110 V Tb S1 E2 S2 Ta E1 Tc S0 E3 Tb S1 E2 S2 E1 E3 (See note.) Contactor Contactor PS-3S Motor protection relay Stop Water supply source M Water tank E1 E3 E2 Start (See note.) Motor protection relay PS-3S Start M P Waste water P tank E1 E3 E2 Stop Reservoir Note: Be sure to ground the common Electrode (the longest Electrode). Note: Be sure to ground the common Electrode (the longest Electrode). * Connect Tb to the contactor's coil terminal. * Power Supply Connections (for models with 110/220-V power) 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * Connect Ta to the contactor's coil terminal. (Do not connect Tb.) * Power Supply Connections (for models with 110/220-V power) 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. Principles of Operation Principles of Operation Power supply Water supply P Pump OFF E1 Water tank U 1 (U indicator ON) Relay Unit Location Power supply Relay Unit Location Pump ON E1 U 1 (U indicator ON) Pump OFF Pump ON E2 (U indicator OFF) E3 E2 E3 (U indicator OFF) P Water drainage The pump stops (indicator ON) when the water level reaches E1 and starts (indicator OFF) when the water level drops below E2. The pump starts (indicator ON) when the water level reaches E1 and stops (indicator OFF) when the water level drops below E2. 5 61F-G@ Automatic Water Supply Control with Pump Idling Prevention and Automatic Water Supply Control with Abnormal Water Shortage Alarm Basic Type 61F-G1 Dimensions: page 13 Automatic Water Supply Control with Pump Idling Prevention Connections 220 VAC power supply R S T Connections 61F-G1 0V 220 VAC power supply R S T U1 61F-11 24 V Relay Unit 110 V MCCB Automatic Water Supply Control with Abnormal Water Shortage Alarm U2 61F-11 Relay Unit 24 V 220 V 61F-G1 0V 110 V MCCB 220 V 8V U2 24 V U1 61F-11 Relay Unit 24 V U2 61F-11 Relay Unit 8V U1 U2 U2 U1 U2 U1 So Tb1 Ta1 S1 S2 E3 E2 U1 Tc2 E1 Tb2 E2' So E1' (E4) Tb1 Ta1 S1 S2 E3 Tc2 E2 E1 Tb2 E2' B B Alarm Contactor (See note.) Push button switch Stop (See note.) Contactor PS-4S Water tank M E3' P E2' E3 E 1' E2 E1 Start Water supply source M Note: Be sure to ground the common Electrode (the longest Electrode). * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * Insert a pushbutton switch (NO) between E1' and E3, as shown by the dotted lines above. * Do not press the pushbutton if the low-water alarm sounds and the pump stops during normal operation (U1 indicator ON, water below E2'). Test Operation/Recovering from Power Interruptions If the supply water level is below E1' when starting operation or when recovering from a power interruption, press the pushbutton to momentarily close the circuit (U1 indicator turns ON) to start the pump. Principles of Operation Relay Unit Location E1' E2' U U 1 2 * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * Insert a pushbutton switch (NO) between E3 and E4. * If the pump stops when the pushbutton switch is released, press it again. Test Operation/Recovering from Power Interruptions If the supply water level is below E4 when starting operation or when recovering from a power interruption, press the pushbutton to momentarily close the circuit (U1 indicator turns ON) to start the pump. Principles of Operation Relay Unit Location Water supply P (U1 indicator OFF) E1 Pump OFF Pump ON L Water tank B P Pump OFF E1 Pump ON E2 E3 E4 Stop Start Water shortage Note: Be sure to ground the common Electrode (the longest Electrode). E2 Water supply E1 E2 P (U1 indicator ON) E3 B Water tank Water tank Power supply Water supply source Water shortage Motor protection relay Power supply PS-3S Water supply source Push button Alarm switch PS-3S Motor protection relay E1' (E4) (U2 indicator ON) L Water E4 shortage E3 U U 1 2 (U2 indicator ON) (U2 indicator OFF) (U1 indicator OFF) (U2 indicator OFF) E3 * The pump starts (U2 indicator OFF) when the water level drops below E2 and stops (U2 indicator ON) when the water level reaches E1. * When the level of the water supply source drops below E2', the pump stops (U1 indicator OFF). Pump idling is prevented and the alarm sounds. * The pump stops (U2 indicator ON) when the water level reaches E1 and starts (U2 indicator OFF) when the water level drops below E2. * If the water level drops below E4 for any reason, the pump stops (U1 indicator OFF) and the alarm sounds. 6 61F-G@ Automatic Drainage Control and Water Supply with Abnormal Water Increase Alarm Basic Type 61F-G2 Dimensions: page 13 Automatic Water Supply with Overfull Tank Alarm Automatic Drainage Control with Overfull Tank Alarm Connections 220 VAC power supply R S T Connections 61F-G2 0V 110 V MCCB 220 V 220 VAC power supply R S T U1 24 V 61F-11 Relay Unit 24 V U2 61F-11 Relay Unit 61F-G2 0V 110 V MCCB 220 V 8V 24 V U1 61F-11 Relay Unit 24 V U2 61F-11 Relay Unit 8V U2 U2 So U2 U2 U1 Ta1 Tc1 Tb1 Ta2 Tc2 S1 S2 E3 E2 E1 So E4 E3 E2 E1 E4 B B Alarm (See note.) Contactor Water tank Water supply source E4 E1 E3 M S2 Alarm PS-4S Motor protection relay Ta1 Tc1 Tb1 Ta2 Tc2 S1 (See note.) Contactor U1 E2 Full Stop Start Motor protection relay PS-4S Waste water tank M P Full Start Stop E4 E3 E2 P E1 Reservoir Note: Be sure to ground the common Electrode (the longest Electrode). Note: Be sure to ground the common Electrode (the longest Electrode). * Connect Tb1 to the power supply. * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * Connect Ta1 to the power supply. * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. Upper limit P E4 Pump OFF E1 Pump ON E2 L B (U1 indicator ON) Power supply Relay Unit Location Water supply Principles of Operation B L Upper limit U U 1 2 (U2 indicator ON) (U2 indicator OFF) E3 Relay Unit Location E4 Pump ON E1 Pump OFF E2 E3 (U1 indicator ON) Power supply Principles of Operation U U 1 2 (U2 indicator ON) (U2 indicator OFF) P Water drainage * The pump starts (U2 indicator OFF) when the water level drops below E2 and starts (U2 indicator ON) when the water level reaches E1. * If the water level reaches E4 for any reason, the alarm sounds (U1 indicator ON). * The pump starts (U2 indicator OFF) when the water level reaches E1 and stops (U2 indicator ON) when the water level drops below E2. * If the water level reaches E4 for any reason, the alarm sounds (U1 indicator ON). 7 61F-G@ Automatic Water Supply and Drainage Control with Abnormal Water Increase and Water Shortage Alarms Basic Type 61F-G3 Dimensions: page 13 Automatic Water Supply with Abnormal Water Increase and Water Shortage Alarms Connections Automatic Drainage Control with Abnormal Water Increase and Water Shortage Alarms Connections 110 V U1 61F-11 Relay Unit 24 V U2 61F-11 Relay Unit 24 V U3 61F-11 Relay Unit 220 V 0V MCCB 110 V 24 V U2 61F-11 Relay Unit 24 V U3 61F-11 Relay Unit 8V U1 U3 U1 U3 U2 U1 U2 U3 U1 U3 U2 U2 Tb B1 B2 Lc E1 E3 E5 Ta LH LL E2 E4 Alarm Upper limit S0 S1 S2 B Tc Tb B1 B2 B PL PL (See note.) Contactor Motor protection relay Lc E1 E3 E5 LH LL E2 E4 S0 S1 S2 Lower limit Tc U1 61F-11 Relay Unit 220 V 8V Ta 24 V Lower limit MCCB 24 V 61F-G3 Upper limit 0V 220 VAC power supply R S T Alarm 220 VAC power supply R S T 61F-G3 PL PL (See note.) Contactor Motor protection relay PS-5S Water supply source Full tank Water tank E2 E5 M E4 E3 P E1 PS-5S Full tank Stop Start Water shortage Waste water tank M P E2 E5 Start Stop E1 E4 E3 Water shortage Reservoir Note: Be sure to ground the common Electrode (the longest Electrode). Note: Be sure to ground the common Electrode (the longest Electrode). * Connect Tb to the contactor's coil terminal. * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * Connect Ta to the contactor's coil terminal. (Do not connect Tb.) * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. Relay Unit Locations Upper limit P B (U1 indicator ON) E1 Pump OFF LH Power supply Water supply Principles of Operation U U U 1 2 3 Upper limit E1 (U2 indicator ON) E2 Pump ON Pump ON E5 LH B (U1 indicator ON) U U U 1 2 3 (U2 indicator ON) E2 (U2 indicator OFF) E3 E4 Relay Unit Locations Power supply Principles of Operation (U3 indicator OFF) Lower limit LL Pump OFF E4 E5 * The pump stops (U2 indicator ON) when the water level reaches E2 and starts (U2 indicator OFF) when the water level drops below E3. * If the water level rises to E1 for any reason, the upper-limit indicator turns ON and the alarm sounds (U1 indicator ON). If the water level drops below E4 for any reason, the lower-limit indicator turns ON and the alarm sounds (U3 indicator OFF). (U2 indicator OFF) E3 B Lower limit (U3 indicator OFF) LL B * The pump starts (U2 indicator ON) when the water level reaches E2 and stops (U2 indicator OFF) when the water level drops below E3. * If the water level rises to E1 for any reason, the upper-limit indicator turns ON and the alarm sounds (U1 indicator ON). If the water level drops below E4 for any reason, the lower-limit indicator turns ON and the alarm sounds (U3 indicator OFF). 8 61F-G@ Automatic Water Supply Control with Water Source Level Indication, Prevention of Pump Idling Due to Water Shortage, and Indication of Water Level in Tank Basic Type 61F-G4 Dimensions: page 13 Automatic Water Supply Control with Water Source Level Indication, Prevention of Pump Idling Due to Water Shortage, and Indication of Water Level in Tank Connections 220 V power supply R S T * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * Insert a pushbutton switch (NO) between E2 and E8, as shown by the dotted lines above. * Do not press the pushbutton if the low-water alarm sounds and the pump stops during normal operation (water below E3). 61F-G4 0V 24 V U5 61F-11 Relay Unit 220 V 24 V U1 61F-11 Relay Unit 0V 24 V U2 61F-11 Relay Unit 24 V U3 61F-11 Relay Unit 24 V U4 61F-11 Relay Unit 110 V MCCB MK3P Relay (See note 2.) U2 X 110 V 220 V Test Operation/Recovering from Power Interruptions U1 If the supply water level is below E2 when starting operation or when recovering from a power interruption (U2 indicator OFF), press the pushbutton to momentarily close the circuit to start the pump. X U4 8V U 3 X U 1 U5 X U3 U4 U2 U5 LL1 LL2 LH1 LH2 BL1 BL2 BH1 BH2 E4 S0 Elevated tank water shortage S1 S2 Water supply Elevated source lower tank limit repletion TC TC2 B TA E8 Water supply Elevated Water supply Elevated source upper tank water source lower tank limit shortage limit repletion Water supply source upper limit E3 E7 E2 E6 E1 E5 Pushbutton switch LL1 LL2 LH1 LH2 BL1 BL2 BH1 BH2 Contactor PS-5S (See note 1.) Motor protection relay Full tank PS-4S Water supply source M P E2 E8 E3 E1 Upper limit Start Stop Lower limit Water tank E4 E5 E6 E8 E7 Stop Start Water shortage Note: Be sure to ground the common Electrode (the longest Electrode). Principles of Operation * Insert four Electrodes in the water supply source and five Electrodes in the elevated water tank. Relay Unit Location * The lower-limit indicator for the water supply source remains ON while the water source level is below E3 (U2 indicator OFF). U U U U * When the water level rises to E2, the lower-limit indicator turns OFF (U2 indicator ON) and the pump is ready for 1 2 3 4 operation. * The upper-limit indicator in the water supply source lights when the water level reaches E1 (U3 indicator ON). U Power 5 supply * The water-shortage indicator for the elevated tank remains ON while the water level in the elevated tank is below E7. The indicator turns OFF (U1 indicator ON) when the water level rises to E7. * The pump stops (U5 indicator ON) when the water level reaches E5 and starts (U5 indicator OFF) when the water level drops below E6. * If the water level reaches E4 for any reason, the abnormal water increase indicator for the elevated tank turns ON (U4 indicator ON). 9 61F-G@ Connection with Three-phase Four-line Circuit When supplying power from N-phase to the Controller in three-phase four-line circuit, refer to the following diagrams. Line voltage (R-S, S-T, or R-T): 380 or 415 VAC Phase voltage (N-R, N-S, or N-T): 220 or 240 VAC 61F-G@, 220 or 240 VAC Water Supply Power source 380 or 415 VAC R S T N * Transformer 61F-11 24 V Relay Unit U 8V Ta Tc S0 A Tb S1 S2 S3 * Rated voltage: S0-S2: 220 or 240 VAC Electromagnetic switch Water tank E1 E2 Water supply source M E1 E2 Stop Start E3 P Note: Be sure to ground terminal E3. 10 61F-G@ Liquid Level Indication and Alarm Basic Type 61F-I Dimensions: page 13 Liquid Level Indication and Alarm Connections * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. 220-VAC power supply R S T 61F-I 0V 110 V MCCB 220 V 24 V 61F-11 Relay Unit U1 24 V 61F-11 Relay Unit U2 8V U2 TC U1 B S0 U1 L3 S1 Alarm B U2 L1 L2 S2 E3 E2 Intermediate Upper limit PL PL E1 Lower limit PL (See note.) PS-3S Upper alarm Water supply source M Water tank E1 E3 E2 Intermediate Lower alarm P Note: Be sure to ground the common Electrode (the longest Electrode). Principles of Operation Relay Unit Location Water tank B LH Upper limit LM Middle LL Lower limit (U1 indicator ON) E1 Power supply * When the water level drops below E2, the lower-limit indicator turns ON and the alarm sounds (U2 indicator OFF). * When the water level reaches E2, the alarm turns OFF and the intermediate indicator turns ON (U2 indicator ON). * When the water level rises to E1, the upper-limit indicator turns ON and the alarm sounds (U1 indicator ON). U U 1 2 (U1 indicator OFF) (U2 indicator ON) B E2 (U2 indicator OFF) E3 11 61F-G@ Two-Wire Connections Automatic Water Supply and Drainage Control Basic Type 61F-GR Automatic Water Supply Control Automatic Drainage Control Connections Connections 220-VAC power supply R S T 220-VAC power supply R S T 61F-GR 61F-GR 0V 0V 110 V 61F-11R 24 V Relay Unit 220 V 8V MCCB 110 V 61F-11R 24 V Relay Unit 220 V 8V MCCB U U U U Ta U Tc S0 U Tb S1 E1 S2 Ta E3 Tc S0 (See note.) E1 S2 E3 (See note.) Contactor Contactor Tb S1 PS-3SR R Motor protective relay Water supply source M Water tank Stop E2 E1 E3 Start P PS-3SR Motor protective relay Waste water tank M P R E2 Start Stop E1 E3 Reservoir Note: Be sure to ground the common Electrode (the longest Electrode). Note: Be sure to ground the common Electrode (the longest Electrode). * Connect Tb to the contactor's coil terminal. * Power Supply Connections 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * With 2-wire connections, only two wires are required between the 61F-GR and Electrode Holder, but three wires are required for the Electrodes. * The Electrode Holder must be specified for 2-wire connections. (Resistance R is built into Electrode Holders for 2-Wire Connections.) * The Relay Unit must also be specified for 2-wire connections. * Connect Ta to the contactor's coil terminal. (Do not connect Tb.) * Power Supply Connections (for models with 110/220-V power) 110 VAC: Connect S0 and S1. 220 VAC: Connect S0 and S2. * With 2-wire connections, only two wires are required between the 61F-GR and Electrode Holder, but three wires are required for the Electrodes. * The Electrode Holder must be specified for 2-wire connections. (Resistance R is built into Electrode Holders for 2-Wire Connections.) * The Relay Unit must also be specified for 2-wire connections. Principles of Operation Principles of Operation Water supply P Pump OFF E1 (U indicator ON) Pump ON E1 Pump OFF Pump ON E2 E2 (U indicator OFF) E3 The pump stops (U indicator ON) when the water level reaches E1 and starts (U indicator OFF) when the water level drops below E2. (U indicator ON) (U indicator OFF) P E3 Water drainage The pump starts (U indicator ON) when the water level reaches E1 and stops (U indicator OFF) when the water level drops below E 2. 12 61F-G@ Dimensions Note: All units are in millimeters unless otherwise indicated. Standard Models 61F-G M3 screw Mounting Holes Four, 6-dia mounting holes Four, 6-dia holes 61F-G1 61F-G2 61F-I Mounting Holes M3 screw Four, 6-dia mounting holes Four, 6-dia holes 61F-G3 M3 screw Mounting Holes Four, 6-dia mounting holes Four, 6-dia holes 61F-G4 M3 screw Mounting Holes Four, 6-dia mounting holes Four, 6-dia holes ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice. 13 Read and Understand This Catalog Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: * Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. * Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. * Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. Disclaimers CHANGE IN SPECIFICATIONS Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2010.4 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2010 All Right Reserved. Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Omron: 61F-G1 AC120/240 61F-G1H AC110/220 61F-G1H AC120/240V 61F-G2 AC120/240 61F-G2H AC120/240 61FG3H AC100/200 61F-G3H AC110/220 61F-G3H AC120/240V 61F-G3T AC110/220 61F-G4 AC120/240 61F-G4H AC110/120 61F-G AC100/200 61F-G AC110/220 61F-G AC120/240 61F-GD AC110/220 61F-GL AC100/200 2KM 61F-GL AC100/200 4KM 61F-I AC100/200 61F-I AC110/220