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| Long-distance capacitive proximity sensor E2K-C Capacitive Proximity Sensor with Adjustable Sensitivity Detects both metallic and non-metallic objects (glass, lumber, water, oil, plastic, etc.) without direct contact. DC models acquire CE marking Ordering Information Sensors Model Shape Sensing distance Output specifications DC 3-wire NPN DC 3-wire PNP AC 2-wire Models Operating status NO NC E2K-C25ME1 E2K-C25ME2 E2-KC25MF1 E2K-C25MF2 E2K-C25MY1 E2K-C25MY2 Unshielded 34 dia. 3 to 25mm Accessories (Order Separately) Mounting Brackets Shape Model Y92E-A34 Quantity 1 Remarks Supplied with the product. E-74 Proximity Sensors Rating/Performance Item Sensing distance adjustable range Sensing object Differential distance Response frequency Model E2K-C25M#1 25 mm 3 to 25 mm Conductors and dielectrics 15% max. of sensing distance (when adjusted to 25 mm 10% with standard object) 70 Hz 10 Hz E2K-C25M#2 E2K-C25MY1 E2K-C25MY2 Sensing distance * Standard sensing object with grounded metal: 50 x 50 x 1t mm Power supply(Operating 12 to 24 VDC, ripple (p-p): 10% max.,(10 to 40 VDC) 100 to 220 VAC (90 to 250 VAC) 50/60 Hz voltage range) Current consumption Leakage current Switching capacity Residual voltage E models: 10 mA max. at 12 VDC, 16 mA max. at 24 VDC Y models: 1 mA max. at 100 VAC (50/60 Hz) with output turned OFF., 2 mA max. at 200 VAC (50/60 Hz) with output turned OFF. 200 mA max. 5 to 200 mA (resistive load) Control output 2 V max. (under load current of 200 mA with cable length of 2 m) Detection indicator (red LED) E1, Y1 models: NO E2, Y2 models: NC Reverse connection protection, surge absorber Surge absorber Operation indicator (red LED) Indicator lamp Operating status (with sensing object approaching) Protective circuits Ambient temperature Ambient humidity Temperature influence Operating/Storage: -25C to 70C (with no icing or condensation) Operating/Storage: 35% to 95%RH (with no condensation) 15%max. of sensing distance at 23 within temperature range -10C to 55C 2% max. of sensing distance at a voltage between 85% and 115% of the rated power supply voltage 2% max. sensing distance at a voltage ranging from 90% to 120% of a rated power voltage of 100 VAC and from 80% to 120% of a rated supply voltage of 200 VAC 1,500 VAC 50/60 Hz for 1min between energized part and case E2K-C Voltage influence Insulation resistance Dielectric strength Vibration resistance Shock resistance Protective structure Connection method Weight (Packed state) Case Material Sensing surface 50 MW min. (at 500 VDC) between current carry parts and case 1000 VAC 50/60 Hz for 1 min between energized part and case 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions Destruction: 500 m/s2 for 10 times each in X, Y, and Z directions IEC 60529 IP66 Pre-wired models (standard length: 2 m) Approx. 200 g Heat-resistant ABS resin Mounting bracket, instruction manual Accessories * The set distances are sensing distances applicable to standard sensing objects. Refer to Engineering Data for sensing distances applicable to other types of objects. E2K-C E-75 Characteristic data (typical) Sensing Distance Change by Sensing Object (Typical) Sensing distance X (mm) 25 20 15 10 5 0 Standard sensing object (50 x 50 x t1) 500 ml milk (pure water) Phenol resin (50 x 50 x 15) Neoprene rubber (50 x 50 x 15) Glass (200 x 50 x t3) Lavan plate (160 x 120 x t15) Resin pellet (Duracon) Flour Sugar Salt Output Circuit Diagram DC 3-wire Models Operating status Model Timing chart Output circuit Sensing object Yes No NO E2K-C25ME1 Operates Load (between brown and black) Releases Output voltage (between black and blue) Operation indicator (red) H L ON OFF 4.4kW Main circuit Yes No Blue 0V Brack *1 Output *2 Tr Load Brown +V Sensing object NC E2K-C25ME2 Operates Load (between brown and black) Releases Output voltage (between black and blue) Operation indicator (red) H L ON OFF * 1. 200 mA max. (load current) * 2. When a transistor is connected Sensing object Yes No NO E2K-C25MF1 Operates Load (between brown and black) Releases Output voltage (between black and blue) Operation indicator (red) H L ON OFF Main circuit 4.7kW 100W Blue 2.2W *2 Black Output *1 Load Brown +V Tr Sensing object Yes No 0V NC E2K-C25MF2 Operates Load (between brown and black) Releases Output voltage (between black and blue) Operation indicator (red) H L ON OFF * 1. Maximum load current: 200 mA * 2. Current flows in this direction if the circuit incorporates the transistor. E-76 Proximity Sensors AC 2-wire Models Operating status Model Timing chart Output circuit Sensing object Yes No Operates Releases ON OFF Main circuit Blue Brown Load NO E2K-C25MY1 Load Operation indicator (red) Sensing object Yes No Operates Releases ON OFF NC E2K-C25MY2 Load Operation indicator (red) E2K-C E-77 E2K-C Operation Sensitivity adjustment Remove the rear rubber cap of the E2K-C and turn the potentiometer in the hole to adjust the sensitivity of the E2K-C. Remove this rubber cap and adjust the potentiometer. 2. Turn the potentiometer counterclockwise until the E2K-C turns off with the sensing object located within the sensing distance. Potentiometer Stop turning the potentiometer at the moment the E2K-C turns off. The sensing distance increases by turning the potentiometer clockwise and decreases by turning the potentiometer counterclockwise. The potentiometer can make 153 valid turns and then make slip turns because the potentiometer does not have a stopper. The slip turns will not, however, damage the potentiometer. 1. Slowly turn the potentiometer clockwise until the E2K-C turns on with no sensing object. Potentiometer Stop turning the potentiometer at the moment the E2K-C turns off. 3. The E2K-C will be in stable operation if there is a difference of 1.5 turns or more between the points the E2K-C is turned on and off, otherwise the E2K-C will not be in stable operation. The point the E2K-C turns on. Stable detection if the difference is 1.5 turns or more. The point the E2K-C turns off. 4. Set the potentiometer midway between the two points. The point the E2K-C turns on. Midway The point the E2K-C turns off. 5. If the distance of each sensing object varies, take step 2 with the sensing object located at the farthest sensing distance to be applied. Precautions Correct Use Design Effects of Surrounding Metal During Proximity Sensor installation provide a distance of 80 mm min. from the surrounding metal objects to prevent the Sensor from being affected by metal objects other than the sensing object. If installing the Sensor with the L-shaped mounting bracket, provide a distance of 20 mm min. between the face of the sensing head and the mounting bracket. 20 mm min. 80 mm min. Surrounding conductive object Surrounding conductive object Mutual Interference Space the two Sensors at a distance exceeding 100 mm to prevent mutual interference. Face-to-dace Mounting Parallel Mounting 100 mm min. 100 mm min. 80 mm min. Effect of High-frequency Electro-magnetic Field The E2K-C may malfunction if there is an ultrasonic washer, high-frequency generator, transceiver, or inverter nearby. Sensing surface Be sure to ground Metal 80 mm min. 80 mm min. E-78 Proximity Sensors Sensing Object Sensing Object Material. The E2K-C can detect almost any type of object. The sensing distance of the E2K-C, 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 E2K-C will be available if the object is made of grounded metal. Indirect Detection. In the case of the detection of objects in metal containers, each metal container must have a nonmetallic window. Miscellaneous Organic Solvents E2K-C has a case made of heat-resistant ABS resin. Be sure that the case is free from organic solvents or solutions containing organic solvents. Dimensions (Unit: mm) Sensors E2K-C25M## 82 7 Cap cord 13 34 dia. Screw hole for sensitivity adjustment CAD file E2K_01 20 Cord clamp E type: 6-dia. three conductors vinyl-insulated round cable (cross-sectional area of conductors: 0.5 mu; insulation diameter: 1.9 mm) Standard length: 2 m Y type: 6-dia. two conductors vinyl-insulated round cable (cross-sectional area of conductors: 0.5 mu; insulation diameter: 1.9 mm) Standard length: 2 m Operation indicator * * E models: Detection indicator (red); Y models: Operation indicator (red) Accessories (Order Separately)* L-shaped Mounting Bracket Y92E-A34 5.2 45 43 R2.6 2 35 15 42 23.5 6.3 Two elliptic holes for bracket mounting Two, M4 sensor clamping screws With Mounting Bracket Attached 54.4 Sensor mounting holes E2K Proximity Sensor 51 30 14 45 57.6 Two, 5.5-dia. mounting holes * 30 * The holes are not drilled straight through. Drill through the holes before using them. 35 6 * Attached to the product. E2K-C E-79 E2K-C |
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