Floatless Level Switch (Ultra High-sensitivity Type) 61F-UHS/-HSL CSM_61F-UHS_-HSL_DS_E_3_3 Ideal for Detecting Ice, Pure Water, or Humidity • Applicable for detecting ice, pure water steam, humidity, or other substances that conduct electricity poorly. • Two types of model available: Ultra high-sensitivity and variable ultra high-sensitivity. Refer to Safety Precautions for Floatless Level Controllers. ■ Ordering Information Type Ultra high-sensitivity Variable ultra highsensitivity Model Ultra highsensitivity 61F-UHS Model 61F-HSL Note: When ordering, specify the desired operating voltage at the end of the model number. Example: 61F-UHS [220VAC] Desired supply voltage ■ Ultra High-sensitivity Models Use these models for sensing objects such as ice, high-purity distilled water, moisture, or other objects with low electrical conductivity. Specifications Item High-sensitivity 61F-UHS Variable high-sensitivity 61F-HSL Supply voltage 100, 200, or 220 VAC; 50/60 Hz 24, 100, 110, 200, or 220 VAC; 50/60 Hz Operating voltage range 85% to 110% of rated voltage Interelectrode voltage 24 VAC 13 VDC max. Interelectrode current Approx. 1 mA AC max. Approx. 1 mA DC max. Power consumption 3.2 VA max. Interelectrode operate resistance 0 to approx. 1 MΩ (see note 1) 0 to approx. 5 MΩ (variable) Interelectrode release resistance Approx. 5 M to ∞ Ω Operate resistance + 2.5 MΩ max. Cable length 5 m (see note 2) (see note 3) Control output 0.3 A, 220 VAC (Inductive load: cosφ = 0.4) 1 A, 220 VAC (Resistive load) 2 A, 220 VAC (Inductive load: cosφ = 0.4) 5 A, 220 VAC (Resistive load) Ambient temperature Operating:–10 to 55°C Ambient humidity Operating:45% to 85% RH Insulation resistance 100 MΩ max. (at 500 VDC) Dielectric strength 2,000 VAC, 50/60 Hz for 1 min Life expectancy Electrical: 50,000 operations min. Mechanical: 5,000,000 operations min. Electrical: 500,000 operations min. Mechanical: 5,000,000 operations min. Weight Approx. 380 g Approx. 240 g Note: 1. Use 61F-UHS for detecting water leakage with high specific resistance. Connect a sensor cable between terminals 1 and 7. 2. Two Electrodes can be connected to the 61F-HSL. Use them for an alarm, not for creating a self-holding circuit. 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 more details, refer to Safety Precautions for Floatless Level Controllers. 4. It is recommended that the cable length be kept as short as possible since the Electrode circuit current is at DC micro-current level. Moreover, the Electrodes will corrode rapidly if the current is allowed to constantly flow between the Electrodes. Be careful with the electrode polarity and grounding when wiring. 1 61F-UHS/-HSL Internal Circuit Diagrams 61F-UHS Tb 22 Tc 44 Ta 33 6 7 1 X/a Ground 8 Tb To each circuit Power circuit 88 S2 Constant voltage circuit E2 Relay Level detection circuit 77 Power supply Rectification smoothing circuit E1 To each circuit Surge-absorbing circuit 11 5 Operation power supply E3 S1 Power circuit 55 Level detection circuit S2 Rectification/ smoothing circuit Rectification smoothing circuit Power supply Relay Operation power supply S1 66 61F-HSL Relay 2 X/c Tc 4 Ta 3 X/c External Circuit Diagrams (Example) 61F-UHS 61F-HSL 4 2 1 E3 Power source 5 3 4 6 3 7 2 E2 E1 Socket: 8PFA1 (track mounted)/ PL08 (back connecting) 6 7 1 8 (-) Power source 5 8 (+) Socket: 8PFA (track mounted)/ PL08 (back connecting) 2 61F-UHS/-HSL ■ Connections Automatic Water Supply and Drainage Control Ultra High-sensitivity Type Dimensions: Page 4 Automatic Water Supply Control Automatic Drainage Control Connections Connections Commercial Voltage R S T Commercial Voltage R S T 61F-UHS 6 MCCB 5 0V 4 3 U 24 V Control circuit 61F-UHS 6 MCCB 5 0V U Contactor 8 3 U Control circuit 24 V 24 V U 24 V Power supply 7 4 1 U Power supply 2 7 8 1 2 (See note.) Contactor (See note.) U PS-3S Motor protection relay Water supply source M Water tank Stop E3 E2 E1 P Motor protection relay PS-3S Start Start M Wastewater tank P E3 E2 E1 Stop Reservoir Note: Be sure to ground the common Electrode E3 (the longest Electrode). Connection Sockets 8PFA1 (Front-connecting) PL08 (Read-connecting) Note: Be sure to ground the common Electrode E3 (the longest Electrode). Connection Sockets 8PFA1 (Front-connecting) PL08 (Read-connecting) Connect terminal 2 to the contactor coil terminal. Connect terminal 3 to the contactor coil terminal. Principles of Operation Principles of Operation P Water supply Pump OFF E1 Pump ON E2 Indicator ON Pump ON Indicator OFF Pump OFF E3 E1 E2 E3 Indicator ON Indicator OFF P Water drainage • When the water level reaches E1, the pump stops and, when the water level reaches E2 or below, the pump starts. • When the water level reaches E1, the pump starts and, when the water level reaches E2 or below, the pump stops. 3 61F-UHS/-HSL Dimensions Note: All units are in millimeters unless otherwise indicated. 61F-UHS 5 91 72 71.2 61F-UHS 101 3.5 82 24 97.5 7 8PFA1 60 61F-HSL 5 5.6 80 62 61 61F-HSL 113 3.5 72.6 91 49 7 8PFA 99.3 ■ Electrode Holders PS-3S/-4S/-5S PS-3SR/-4SR/-5SR (see note) Mounting Holes PF2 parallel thread (effective dia.: 58.135) 9-dia. rubber bushing (inner) Used with coupling 34 dia. With Mounting Bracket 65 dia. hole PS-3S (approx. 150 g) PS-3SR (approx. 155 g) PS-4S (approx. 170 g) PS-4SR (approx. 175 g) PS-5S (approx. 185 g) PS-5SR (approx. 190 g) Mounting Screw Holes Note: The PS-3SR, PS-4SR, and PS-5SR have built-in resistor of 6.8 kΩ and used for the two-wire 61F models. PS-31 PF1/2 Parallel thread 11 dia. Mounting Holes Weight: approx. 325 g Electrode SUS304 3 M3 Rubber packing 29.5 dia. F03-31 Dust-preventive rubber cap (optional) Weight: approx. 20 g Note: Standard holder construction includes three integral 300-mm-long Electrodes. However, a model having 1,000-mm-long Electrodes is available on request. 4 61F-UHS/-HSL (72) BF-1 23 8 Two, M5 × 25 mounting screws 22 Mounting Holes 26-dia. hole (20 dia.) 60 (48) 33 dia. Terminal bolt, SUS304 (M6) Weight: approx. 75 g 48 Two, 6-dia. holes Nuts (M6) (18) 40±2.0 (47) BF-3/-3R BF-5/-5R BF-3(R) Weight BF-3: approx. 210 g BF-3R: approx. 215 g Mounting Holes Two, 6-dia. holes R19 Three, 26-dia. holes 64-dia. hole 1 1 120° 110 (90) 90 90 120° Two, 6-dia. holes Two, M5 × 25 mounting screws Nut Terminal (M6) bolt, SUS304 (M6) 74 BF-5(R) 20 dia. Weight BF-5: approx. 360 g BF-5R: approx. 365 g Mounting Holes Two, 6-dia. hole Five, 26-dia. hole Spring washer 23 110 dia. (90) 50 76 90 (18) 8 22 40±2.0 (47) (49) 90 R13 50 76 (72) BS-1(S) BS-1 Weight: approx. 70 g Width across flats: 20 Terminal bolt M18 SUS304 (M4) P=0.7 P=1.5 Two, M4 P=0.7 Mounting Holes 24 Nut (iron) 12 50 39 51 M18 P=1.5 (fine screw thread) 101 BS-1S BS-1S-1 BS-1S2 Width across flats: 20 Terminal bolt M18 SUS304 (M4) P=0.7 P=1.5 Two, M4 P=0.7 24 dia. 12 50 101 39 51 M18 P=1.5 (fine screw thread) 5 61F-UHS/-HSL Terminal bolt SUS304 SUS316 Titanium HAS B HAS C M4 nut Width between SUS304 flats: 20.5 BS-1T Mounting Holes Two, M4** 24 dia. M18 P=1.5 (fine screw thread) HAS titanium *This nut is made of Fluorine Resin **A connecting nut made of HAS B, HAS C, or titanium is not supplied with two M4 screws and thus has no holes for such screws. Material SUS304 SUS316 Titanium HAS B HAS C Weight Approx. 55 g Approx. 55 g Approx. 45 g Approx. 65 g Approx. 60 g PH-1 PH-2 (Approx. 140 g with a 1-m cord) (Approx. 235 g with a 1-m cord) Two, 6-dia. holes PVC resin (black) Resin 26 dia. 27 dia. 5 dia. 19 dia. Two-core cable Single-core cable Cable OD: Vinyl, Hypalon 6.8 dia. Cable OD: Vinyl 5.0 dia., Hypalon 6.5 dia. Note: Cable is supplied in lengths of 1, 5, 10, 15, 20, 30, 40, 50, 60, 70, 80, 90, or 100 meters. ■ Electrode Separators F03-14 1P for one pole F03-14 3P for three poles F03-14 5P for five poles Five, 7 dia. Three, 7 dia. 6.5 dia. 20 28 dia. 41 Weight: Approx. 15 g Weight: Approx. 30 g 20 46 Weight: Approx. 30 g ■ Safety Precautions Refer to Safety Precautions for All Level Controllers. Precautions for Correct Use Short Wiring in Electrode Circuit • Keep the wires connecting the Controller to Electrode Holders as short as possible. If long leads are used, the floating capacity of the leads, and abnormal surges or noise in the Electrode circuit can cause malfunctions. • The thicker the cables, the shorter the permitted wiring length. The length of the cable connecting the Controller and Electrode is specified in the Controller datasheet as a guideline assuming that a 600-V VCT 0.75-mm2, 3-core cabtire cable is used. Test results indicate that the actual wiring length using VCT 3.5-mm2, 3-core cable laid over the ground is 50% of the specified length for general-purpose applications and 80% of the specified length for long-distance applications. When selecting cable specifications, remember that the wiring length is further decreased for underground cables and larger diameter cables because of the increased floating capacity with the ground. 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. 6 Terms and Conditions Agreement 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. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. 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NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials 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 user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 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 part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 2015.10 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 2015 All Right Reserved.