Cylindrical Proximity Sensor E2K-X CSM_E2K-X_DS_E_3_1 General-purpose Threaded Sensor That Detects Metals and Non-metals Alike * Detects both metallic and nonmetallic objects (water, oil, glass, plastic, etc.). * Three choices of threaded cylinder sizes for easy installation: M12, M18, and M30. * Fixed sensing distance requires no sensitivity adjustment. Be sure to read Safety Precautions on page 5. Ordering Information Sensors Model Appearance Sensing distance Output configuration Operation mode NO M12 4 mm Unshielded M18 8 mm M30 15 mm NC DC 3-wire, NPN E2K-X4ME1 2M E2K-X4ME2 2M AC 2-wire E2K-X4MY1 2M E2K-X4MY2 2M DC 3-wire, NPN E2K-X8ME1 2M E2K-X8ME2 2M AC 2-wire E2K-X8MY1 2M E2K-X8MY2 2M DC 3-wire, NPN E2K-X15ME1 2M E2K-X15ME2 2M AC 2-wire E2K-X15MY1 2M E2K-X15MY2 2M Accessories (Order Separately) Mounting Brackets Refer to Y92@ for details. 1 E2K-X Ratings and Specifications Item E2K-X4ME@, E2K-X4MY@ Model E2K-X8ME@, E2K-X8MY@ E2K-X15ME@, E2K-X15MY@ 4mm 10% 8 mm 10% 15 mm 10% Set distance *1 0 to 2.8 mm 0 to 5.6 mm 0 to 10 mm Differential travel 4% to 20% of sensing distance Detectable object Conductors and dielectrics Standard sensing object Grounded metal plate: 50 x 50 x 1 mm Response frequency E Models: 100 Hz, Y Models: 10 Hz Power supply voltage*2 (operating voltage range) E Models: 12 to 24 VDC (10 to 30 VDC) Y Models: 100 to 220 VAC (90 to 250 VAC) Current consumption E Models: 15 mA max. Leakage current Y Models: 2.2 mA max. (Refer to page 4.) Sensing distance Control output Load current E Models: 200 mA max.*2, Y Models: 10 to 200 mA Residual voltage E Models: 1 V max. (Load current: 200 mA, Cable length: 2 m), Y Models: Refer to Engineering Data on page 4. Indicators E Models: Detection indicator (red), Y Models: Operation indicator (red) Operation mode (with sensing object approaching) E1/Y1 Models: NO E2/Y2 Models: NC Protection circuits E Models: Reverse polarity protection, Surge suppressor, Y Models: Surge suppressor Ambient temperature range Operating/Storage: -25 to 70C (with no icing or condensation) Ambient humidity range Operating/Storage: 35% to 95% (with no condensation) Temperature influence 20% max. of sensing distance at 23C in the operating temperature range Voltage influence E Models: 2% max. of sensing distance at rated voltage at rated voltage 20% Y Models: 2% max. of sensing distance at rated voltage at rated voltage 10% Insulation resistance 50 M min. (at 500 VDC) between current-carrying parts and case Dielectric strength E Models: 1,000 VAC, 50/60 Hz for 1 min between current-carrying parts and case Y Models: 2,000 VAC, 50/60 Hz for 1 min between current-carrying parts and case Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions Shock resistance Destruction: 500 m/s2 3 times each in X, Y, and Z directions Degree of protection IP66 (IEC), in-house standards: oil-resistant Connection method Pre-wired Models (Standard cable length: 2 m) Weight (packed state) Approx. 65 g Case Materials Sensing surface Clamping nuts Accessories Refer to the timing charts under I/O Circuit Diagrams on page 4 for details. Approx. 145 g Operating/Storage: -10 to 55C (with no icing or condensation) Approx. 205 g Heat-resistant ABS Polyacetal Tightening tool, Instruction Manual Instruction manual *1. The above values are sensing distances for the standard sensing object. Refer to Engineering Data on page 3 for other materials. *2. E Models (DC switching models): A full-wave rectification power supply of 24 VDC 20% (average value) can be used. 2 E2K-X Engineering Data (Typical) Sensing Area (Grounded Metal Plate) Distance X (mm) E2K-X4M 18 16 14 E2K-X15M Y X 12 10 8 Standard sensing object Grounded metal plate 50 x 50 x 1 mm E2K-X8M 6 4 E2K-X4M 2 0 -5 -20 -15 -10 -5 0 5 10 15 E2K-X4M Sensing 20 25 Distance Y (mm) E2K-X8M Sensing Head E2K-X15M Sensing Head Influence of Sensing Object Size and Material dx d t = 3 mm X Grounded metal 4 3 10 dx d E2K-X15M t = 3 mm X Grounded metal 8 Distance X (mm) 5 E2K-X8M Distance X (mm) Distance X (mm) E2K-X4M 6 25 dx d t = 3 mm X 20 Grounded metal 15 Non-grounded metal Non-grounded metal Non-grounded metal 2 4 10 Glass Glass 1 2 Glass 0 Acryl Acryl Phenol 20 30 40 50 60 70 Side length of sensing object: d (mm) 10 Phenol 5 Phenol 0 10 20 30 40 50 60 70 0 10 20 Side length of sensing object: d (mm) 30 40 50 60 70 Side length of sensing object: d (mm) Sensing Object Thickness and Material vs. Sensing Distance 5 4 Grounded metal 50 x 50 3 X t E2K-X15M 10 8 Grounded metal 50 x 50 X t 6 Distance X (mm) E2K-X8M Distance X (mm) Distance X (mm) E2K-X4M 25 20 50 x 50 X t Grounded metal 15 Non-grounded metal Non-grounded metal Non-grounded metal Glass 4 2 10 Acryl 1 2 5 Phenol 0 5 10 15 20 Glass Phenol Phenol Glass Acryl 25 Thickness of sensing object: t (mm) 0 5 10 15 20 25 Thickness of sensing object: t (mm) 0 5 10 15 20 25 Thickness of sensing object: t (mm) 3 E2K-X E2K-X@MY@ 1.5 Protective resistance mA V at 100 VAC 120 E2K-X@MY@ Load voltage VL (V) 2.0 Load voltage VL (V) Residual Output Voltage E2K-X@MY Leakage current (mA) Leakage Current Residual output voltage 100 ON 80 240 Residual output voltage 200 ON 160 V AC power, 50/60Hz V 60 120 VL VL (OFF) 1.0 40 100 VAC A 100 40 0 3 200 300 Power supply voltage (V) Residual Load Voltage 5 10 OFF 20 30 200 VAC 80 20 0 at 200 VAC 0 3 50 100 200 Load current (mA) A Residual Load Voltage 5 10 20 30 50 100 OFF 200 Load current (mA) I/O Circuit Diagrams DC 3-Wire Models Operation mode Model Timing chart Output circuit Present Sensing object Not present NO E2K-X4ME1 E2K-X8ME1 E2K-X15ME1 Load (between brown and black leads) Operate Brown Reset High Output voltage (between black and blue leads) +V 100 Low ON Detection indicator (red) OFF Load Proximity Sensor main circuit 4.7 k Black*1 2.2 Output*2 Tr Present Sensing object Blue Not present NC E2K-X4ME2 E2K-X8ME2 E2K-X15ME2 Load (between brown and black leads) 0V Operate Reset High Output voltage (between black and blue leads) *1. Load current: 200 mA max. *2. When a transistor is connected. Low ON Detection indicator (red) OFF AC 2-Wire Models Operation mode Model Timing chart Sensing object NO E2K-X4MY1 E2K-X8MY1 E2K-X15MY1 Output circuit Present Not present Load Operate Brown Reset Operation indicator (red) Load ON OFF Proximity Sensor main circuit Blue Sensing object NC E2K-X4MY2 E2K-X8MY2 E2K-X15MY2 Present Not present Load Operate Reset Operation indicator (red) ON OFF 4 E2K-X Safety Precautions Refer to Warranty and Limitations of Liability. WARNING Sensing Objects This product is not designed or rated for ensuring safety of persons either directly or indirectly. Do not use it for such purposes. Precautions for Correct Use Do not use this product under ambient conditions that exceed the ratings. Design Ambient Environment The Sensor may malfunction if subjected to water, oil, chemicals, or condensation by falsely detecting these as sensing objects. The E2K-X15M is highly sensitive to inductive objects and can thus be affected even by small quantities of water drops. Influence of Surrounding Objects If the Sensor is embedded in metal, maintain at least the following distances between the Sensor and the metal. The Sensor is also affected by other materials, such as resins. Separate the Sensor from other materials by the same distance as for metal. l Metal object * Be sure to ground the metal object, otherwise Sensor operation will not be stable. Influence of Surrounding Metal (Unit: mm) Dimension l 20 d m n 50 8 12 25 60 10 If a mounting bracket is used, be sure that at least the following distances are maintained. Influence of Surrounding Metal Dimension E2K-X4M E2K-X8M E2K-X15M G 20 Mounting Do not tighten the nut with excessive force. Always use washers when tightening the nuts and do not exceed the torque in the following table. E2K-X4M E2K-X8M E2K-X15M Torque 0.78 N*m 2 N*m Note: A special tightening tool is provided with the E2K-X4M@@. Always use this tool to tighten the nuts. Miscellaneous Organic Solvents The Sensor has a case made of heat-resistant ABS resin. Be sure that the case is free from organic solvents or solutions containing organic solvents. G (Unit: mm) Model The E2K-X may malfunction if there is an ultrasonic washer, highfrequency generator, transceiver, or inverter nearby. For major measures, refer to Noise of Warranty and Limitations of Liability for Photoelectric Sensors. Model * Be sure to ground. E2K-X4M E2K-X8M E2K-X15M Effects of a High-frequency Electromagnetic Field m n d dia. Model The maximum sensing distance will decrease if the sensing object is a non-grounded metal object or dielectric object. * Sensing Object Material The E2K-X can detect almost any type of object. The sensing distance of the E2K-X, however, will vary with the electrical characteristics of the object, such as the conductance and inductance of the object, and the water content and capacity of the object. The maximum sensing distance of the E2K-X will be obtained if the object is made of grounded metal. * There are objects that cannot be detected indirectly. Therefore, be sure to test the E2K-X in a trial operation with the objects before using the E2K-X in actual applications. H H 30 10 Mutual Interference When installing Sensors face-to-face or side-by-side, ensure that the minimum distances given in the following table are maintained. B A Mutual Interference Model Dimension E2K-X4M E2K-X8M E2K-X15M (Unit: mm) A B 80 150 300 70 110 200 5 E2K-X (Unit: mm) Dimensions Tolerance class IT16 applies to dimensions in this data sheet unless otherwise specified. E2K-X4ME@ E2K-X4MY@ E2K-X8ME@ E2K-X8MY@ 80 21 dia. 80 29 dia. 60 60 17 20 4 24 Indicator *2 4 20 Indicator *2 4 4 10.7 dia. 16.6 dia. *1 *1 M12 x 1 Two clamping nuts Two washers M18 x 1 *1. E Models: 4-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.2 mm2, Insulator diameter: 1.2 mm), Standard length: 2 m Y Models: 4-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.3 mm2, Insulator diameter: 1.3 mm), Standard length: 2 m *2. E Models: Detection indicator (red) Y Models: Operation indicator (red) Two clamping nuts Two washers *1. E Models: 6-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m Y Models: 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m *2. E Models: Detection indicator (red) Y Models: Operation indicator (red) Mounting Hole Dimensions E2K-X15ME@ E2K-X15MY@ F 80 Model E2K-X4ME@ E2K-X4MY@ E2K-X8ME@ E2K-X8MY@ E2K-X15ME@ E2K-X15MY@ F (mm) +0.5 12.5 0 +0.5 18.5 0 +0.5 30.5 0 dia. dia. dia. 60 42 dia. 36 10 5 5 Indicator *2 28.1 dia. *1 M30 x 1.5 Two clamping nuts Two washers *1. E Models: 6-dia. vinyl-insulated round cable with 3 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m Y Models: 6-dia. vinyl-insulated round cable with 2 conductors (Conductor cross section: 0.5 mm2, Insulator diameter: 1.9 mm), Standard length: 2 m *2. E Models: Detection indicator (red) Y Models: Operation indicator (red) 6 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. 2008.11 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 2008 All Right Reserved.