Long Distance Cylindrical Proximity Sensor E2A3 . Extra long distance for increased protection and sensing performance • triple distance proximity sensors for flush mounting re- quirements. • designed and tested for extra long life. Ordering Information DC 3-wire Models Sensing Body Thread Size Type Connection Output Operation mode: NO Operation mode: NC distance material length PNP E2A3-S08KS03-WP-B1 2M E2A3-S08KS03-WP-B2 2M Pre-wired 27 (40) mm NPN E2A3-S08KS03-WP-C1 2M E2A3-S08KS03-WP-C2 2M PNP E2A3-S08KS03-M1-B1 E2A3-S08KS03-M1-B2 M12 Stainless steel 27 (44) mm M8 Shielded 3.0mm connector (See note.) NPN E2A3-S08KS03-M1-C1 E2A3-S08KS03-M1-C2 M8 PNP E2A3-S08KS03-M5-B1 E2A3-S08KS03-M5-B2 connector 27 (40) mm NPN E2A3-S08KS03-M5-C1 E2A3-S08KS03-M5-C2 (3-pin) PNP E2A3-M12KS06-WP-B1 2M E2A3-M12KS06-WP-B2 2M Pre-wired 34 (50) mm NPN E2A3-M12KS06-WP-C1 2M E2A3-M12KS06-WP-C2 2M M12 Shielded 6.0mm Brass PNP E2A3-M12KS06-M1-B1 E2A3-M12KS06-M1-B2 M12 34 (49) mm connector NPN E2A3-M12KS06-M1-C1 E2A3-M12KS06-M1-C2 PNP E2A3-M18KS11-WP-B1 2M E2A3-M18KS11-WP-B2 2M Pre-wired 39 (60) mm NPN E2A3-M18KS11-WP-C1 2M E2A3-M18KS11-WP-C2 2M M18 Shielded 11.0mm Brass PNP E2A3-M18KS11-M1-B1 E2A3-M18KS11-M1-B2 M12 39 (54) mm connector NPN E2A3-M18KS11-M1-C1 E2A3-M18KS11-M1-C2 PNP E2A3-M30KS20-WP-B1 2M E2A3-M30KS20-WP-B2 2M Pre-wired 44 (65) mm NPN E2A3-M30KS20-WP-C1 2M E2A3-M30KS20-WP-C2 2M M30 Shielded 20.0mm Brass PNP E2A3-M30KS20-M1-B1 E2A3-M30KS20-M1-B2 M12 44 (59) mm connector NPN E2A3-M30KS20-M1-C1 E2A3-M30KS20-M1-C2 Note:Material specifications for stainless steel housing case: 1.4305 (W.-No.), SUS303 (AISI), 2346 (SS). E2A3 D-35 E2A3 Connectivity E2A3 Sensors are available with the following connectors and cable materials: Pre-wired Models Connector Models Standard connectors: M12, M8 (3-pin) -M1, -M5 Standard cable lengths are 2 m and 5 m. For other cable lengths, please contact your OMRON representative. Standard cable material: PVC (4-mm dia.) -WP Model Number Legend E2A@-@@@@@-@-@@-@@ 1 2 3 4 5 6 7 8 9 10 1112 Example: E2A3-M12KS06-M1-B1 Triple distance, M12, standard barrel, shielded, Sn = 6 mm, M12 connector, PNP-NO E2A3-S08KS03-WP-B1 2M Triple distance, M8 stainless steel, standard barrel, shielded, Sn = 3 mm, pre-wired PVC cable, PNP-NO, cable length = 2 m 1. Basic name 8. Kind of connection E2A WP: Pre-wired, PVC, 4-mm dia. 2. Sensing technology M1: M12 connector (4-pin) * Blank: Standard double distance M5: M8 connector (3-pin) 3: Triple distance 9. Power source and output 3. Housing shape and material B: DC, 3-wire, PNP open collector M: Cylindrical, metric threaded, brass C: DC, 3-wire, NPN open collector S: Cylindrical, metric threaded, stainless steel 10.Operation mode 4. Housing size 1: Normally open (NO) 08: 8 mm 2: Normally closed (NC) 12: 12 mm 11.Specials (e.g., cable material, oscillating frequency) 18: 18 mm 30: 30 mm 12.Cable length 5. Barrel length Blank: Connector Model K: Standard length Numeral: Cable length L: Long body 6. Shield S: Shielded N: Non-shielded 7. Sensing distance Numeral: Sensing distance: e.g., 03 = 3 mm, 11 = 11 mm D-36 Inductive Sensors Specifications DC 3-wire Models Size M8 M12 M18 M30 Type Shielded Shielded Shielded Shielded E2A3-M18KS11-@@-B@ E2A3-S08KS03-@@-B@ E2A3-M12KS06-@@-B@ E2A3-M30KS20-@@-B@ E2A3-S08KS03-@@-C@ E2A3-M12KS06-@@-C@ E2A3-M30KS20-@@-C@ Item E2A3-M18KS11-@@-C@ Sensing distance 3 mm ± 10% 6 mm ± 10% 11 mm ± 10% 20 mm ± 10% Ambient temp. of 0 to 2.1 mm 0 to 4.2 mm 0 to 7.7 mm 0 to 14 mm −25 to 70°C Setting distance Ambient temp. of 0 to 2.4 mm 0 to 4.8 mm 0 to 8.8 mm 0 to 16 mm −10 to 60°C Differential travel 20% max. of sensing distance Target Ferrous metal (The sensing distance decreases with non-ferrous metal.) Standard sensing object 9 × 9 × 1 mm 18 × 18 × 1 mm 33 × 33 × 1 mm 60 × 60 × 1 mm Response frequency (See note 1.) 700 Hz 350 Hz 250 Hz 80 Hz Power supply voltage 12 to 24 VDC. Ripple (p-p): 10% max. (operating voltage range) (10 to 32 VDC) Current consumption 10 mA max. -B models: PNP open collector Output type -C models: NPN open collector Load current 200 mA max. (32 VDC max.) Control output Residual voltage 2 V max. (under load current of 200 mA with cable length of 2 m) Indicator Operation indicator (Yellow LED) -B1/-C1 models: NO Operation mode -B2/-C2 models: NC For details, refer to the timing charts. Power source circuit re- verse polarity protection, Output reverse polarity protection, Power source circuit reverse polarity protec- Protection circuits Surge suppressor, Short- tion, Surge suppressor, Short-circuit protection circuit protection Ambient air temperature Operating: −25°C to 70°C, Storage: −25°C to 70°C ±20% max. of sensing distance at 23°C within temperature range of −25°C to 70°C Temperature influence −10% to +20% of sensing distance at 23°C within temperature range of −10°C to 60°C Ambient humidity Operating: 35% to 95%, Storage: 35% to 95% Voltage influence ±1% max. of sensing distance in rated voltage range ±15% Insulation resistance 50 MΩ min. (at 500 VDC) between current-carrying parts and case Dielectric strength 1,000 VAC at 50/60 Hz for 1 min between current-carrying parts and case Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions 2 500 m/s , 10 times each 2 Shock resistance 1,000 m/s , 10 times each in X, Y and Z directions in X, Y, and Z directions IP67 after IEC 60529 Standards and listings IP69K after DIN 40050 (See note 2.) EMC after EN60947-5-2 -WP models: Pre-wired Models (4-mm dia. PVC cable with length of 2 m) Connection method -M1 models: M12 4-pin Connector Models -M5 models: M8 3-pin Connector Models Pre-wired Models Approx. 65 g Approx. 85 g Approx. 160 g Approx. 280 g Weight M12 Connector Models: (packed state) Connector Models Approx. 35 g Approx. 70 g Approx. 200 g Approx. 20 g Case Stainless steel Brass-nickel plated Sensing surface PBT Material Cable PVC Clamping nut Stainless steel Brass-nickel plated Note 1. The response frequency is an average value. Measurement conditions are as follows: standard sensing object, a distance of twice the standard sensing object length between sensing objects, and a set distance of half the sensing distance. 2. For USA and Canada: use class 2 circuit only. E2A3 D-37 E2A3 Engineering Data Operating Range (Typical) 22 20 18 Y 16 X E2A3-M30KS20 14 12 E2A3-M18KS11 10 E2A3-M12KS06 8 E2A3-S08KS03 6 4 2 0 −30 −20 −10 0 10 20 30 Distance Y (mm) Influence of Sensing Object Size and Materials E2A3-S08KS03 E2A3-M12KS06 E2A3-M18KS11 3.5 7 12 @d @d @d t = 1 mm Iron t = 1 mm t = 1 mm Iron X X X Iron 3.0 6 10 2.5 5 Stainless steel (SUS303) Stainless steel (SUS303) Stainless steel (SUS303) 8 2.0 4 Brass 6 Brass Brass Aluminum 1.5 3 Aluminum Aluminum Copper Copper 4 1.0 2 Copper 2 0.5 1 0.0 0 0 0 5 10 15 20 25 0 5 10 15 20 25 30 0 10 20 30 40 50 Side length of sensing object d (mm) Side length of sensing object d (mm) Side length of sensing object d (mm) E2A3-M30KS20 25 @d t = 1 mm X Iron 20 Stainless steel (SUS303) 15 Brass 10 Aluminum Copper 5 0 0 10 20 30 40 50 60 Side length of sensing object d (mm) D-38 Inductive Sensors Sensing distance X (mm) Sensing distance X (mm) Sensing distance X (mm) Sensing distance X (mm) Sensing distance X (mm) Rated Rated sensing sensing distance distance Proximity Sensor Proximity Sensor Operation DC 3-wire Models PNP Output Operation mode Model Timing chart Output circuit Non-sensing area Sensing area Brown +V Sensing object Proximity Black Sensor 100 0 (%) main (See note 1.) circuits Load Blue ON 0 V Yellow indicator OFF NO E2A3-@-@-B1 ON Note 1: With M8 Size Models, there is no output reverse Control output polarity protection diode. OFF M12 Connector M8 Connector Pin Arrangement (3-pin) (See note 2.) Pin Arrangement 4 1 1 3 2 4 3 Note 2: Terminal 2 of the M12 connector is not used. Non-sensing area Sensing area Brown +V Sensing object Black Proximity (M8 connector: ) Sensor (%) 100 0 main (See note 1.) circuits Load Blue ON 0 V Yellow indicator OFF NC E2A3-@-@-B2 Note 1: With M8 Size Models, there is no output reverse ON polarity protection diode. Control output OFF M12 Connector M8 Connector (3-pin) Pin Arrangement (See note 2.) Pin Arrangement 4 1 3 1 2 4 3 Note 2: Terminal 4 of the M12 connector is not used. E2A3 D-39 E2A3 Rated Rated sensing sensing distance distance Proximity Sensor Proximity Sensor DC 3-wire Models NPN Output Operation mode Model Timing chart Output circuit Non-sensing area Sensing area Brown +V Sensing object Load Proximity (See note 1.) Black Sensor 100 0 (%) main circuits Blue ON 0 V Yellow indicator OFF NO E2A3-@-@-C1 Note 1: With M8 Size Models, there is no output reverse ON Control output polarity protection diode. OFF M12 Connector M8 Connector (3-pin) Pin Arrangement (See note 2.) Pin Arrangement 4 1 3 1 2 4 3 Note 2: Terminal 2 of the M12 connector is not used. Non-sensing area Sensing area Brown +V Sensing object Load Proximity (See note 1.) Black Sensor (%) 100 0 main (M8 connector: ) circuits Blue ON 0 V Yellow indicator OFF NC E2A3-@-@-C2 ON Note 1: With M8 Size Models, there is no output reverse Control output polarity protection diode. OFF M12 Connector M8 Connector (3-pin) Pin Arrangement (See note 2.) Pin Arrangement 4 1 3 1 2 4 3 Note 2: Terminal 4 of the M12 connector is not used. D-40 Inductive Sensors Dimensions Note:All units are in millimeters unless otherwise indicated. Pre-wired Models E2A3-S08KS03-WP-@@ E2A3-M18KS11-WP-@@ 59.6 40 39 26.8 13 45 24 615 (See note 1.) (See note 1.) Indicator (See note 2.) M8×1 Indicator (See note 2.) Two, clamping nuts M18×1 Two, clamping nuts Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc- 2 tor cross section: 0.3 mm ; Insulator diameter: 1.3 mm), Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc- 2 Standard length: 2 m tor cross section: 0.3 mm ; Insulator diameter: 1.3 mm), Standard length: 2 m 2. Operation indicator (yellow) 2. Operation indicator (yellow) E2A3-M12KS06-WP-@@ E2A3-M30KS20-WP-@@ 50.4 34 64.6 5.5 12 17 44 36 715 (See note 1.) Indicator (See note 2.) M12×1 Two, clamping nuts (See note 1.) Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc- Indicator (See note 2.) 2 tor cross section: 0.3 mm ; Insulator diameter: 1.3 mm), M30×1.5 Standard length: 2 m Two, clamping nuts 2. Operation indicator (yellow) Note 1. 4-dia. vinyl-insulated round cable with 3 conductors (Conduc- 2 tor cross section: 0.3 mm ; Insulator diameter: 1.3 mm), Standard length: 2 m 2. Operation indicator (yellow) M12 Connector Models E2A3-S08KS03-M1-@@ E2A3-M18KS11-M1-@@ 54.2 43.9 39 26.8 24 615 13 45 M12×1 M12×1 Indicator (See note.) M8×1 Indicator (See note.) Two, clamping nuts M18×1 Two, clamping nuts Note:Operation indicator (yellow LED, 4×90°) Note:Operation indicator (yellow LED, 4×90°) E2A3-M12KS06-M1-@@ E2A3-M30KS20-M1-@@ 59.2 49.2 44 34 36 715 5.5 12 17 M12×1 M12×1 Indicator (See note.) M12×1 Indicator (See note.) Two, clamping nuts M30×1.5 Note:Operation indicator (yellow LED, 4×90°) Two, clamping nuts Note:Operation indicator (yellow LED, 4×90°) E2A3 D-41 E2A3 M8 Connector Models E2A3-S08KS03-M5-@@ 39.8 26.8 13 45 M8×1 Indicator (See note.) M8×1 Two, clamping nuts Note:Operation indicator (yellow LED, 4×90°) Mounting Hole Cutout Dimensions External diameter Dimension F (mm) of Proximity Sensor +0.5 M8 8.5 dia. 0 +0.5 M12 12.5 dia. 0 F +0.5 M18 18.5 dia. 0 +0.5 M30 30.5 dia. 0 D-42 Inductive Sensors Safety Precautions Precautions for Safe Use Wiring Be sure to wire the E2A3 and load correctly, otherwise it may be WARNING damaged. This product is not designed or rated for ensuring safety Connection with No Load of persons. Be sure to insert a load when wiring. Make sure to connect a proper Do not it for such purposes. load to the E2A3 during operation, otherwise it may damage internal elements. Power Supply Do not expose the product to flammable or explo- Do not impose an excessive voltage on the E2A3, otherwise it may be damaged. Do not impose AC current (100 to 240 VAC) on any DC sive gases. Model, otherwise it may be damaged. Do not disassemble, repair, or modify the product. Load Short-circuit Do not short-circuit the load, or the E2A3 may be damaged. The E2A3’s short-circuit protection function will be valid if the polarity of the supply voltage is correct and within the rated voltage range. Power OFF Precautions for Correct Use The Proximity Sensor may output a pulse signal when it is turned Designing OFF. Therefore, it is recommended that the load be turned OFF Power Reset Time before turning OFF the Proximity Sensor. The Proximity Sensor is ready to operate within 100 ms after power Power Supply Transformer is supplied. If separate power supplies are connected to the Proxim- ity Sensor and load, be sure to supply power to the Proximity Sensor When using a DC power supply, make sure that the DC power sup- before supplying power to the load. ply has an insulated transformer. Do not use a DC power supply with an auto-transformer. Effects of Surrounding Metal Mutual Interference When mounting the E2A3 within a metal panel, ensure that the clearances given in the following tables are maintained. When installing two or more Sensors face-to-face or side-by-side, ensure that the minimum distances given in the following table are l maintained. B A n d dia. m D m l (Unit: mm) (Unit: mm) Dimension M8 M12 Type Dimension M8 M12 M18 M30 Material of Non- Non- Model Ferrous Ferrous surrounding ferrous ferrous A 253570 110 metal metal metal metal metal Shielded B 202545 70 l 0.5 (*) 2 (*) 2 (*) 1 (*) m9 18 E2A3 d24 36 Shielded D0.5 2 2 1 n24 36 (Unit: mm) Dimension M18 M30 Material of Non- Non- Model Ferrous Ferrous surrounding ferrous ferrous metal metal metal metal metal l 4 (*) 2.5 (*) 6 (*) 4 (*) m33 60 E2A3 d54 90 Shielded D4 2.5 6 4 n54 90 * Using the nuts provided with the E2A3 allows mounting in the way shown be- low. Nut provided with E2A3 l = 0 mm E2A3 D-43 A E2A3 Wiring Maintenance and Inspection High-tension Lines Periodically perform the following checks to ensure stable operation of the Proximity Sensor over a long period of time. Wiring through Metal Conduit: If there is a power or high-tension line near the cable of the Proximity 1. Check for mounting position, dislocation, looseness, or distortion Sensor, wire the cable through an independent metal conduit to pre- of the Proximity Sensor and sensing objects. vent against Proximity Sensor damage or malfunctioning. 2. Check for loose wiring and connections, improper contacts, and line breakage. Cable Extension 3. Check for attachment or accumulation of metal powder or dust. The standard cable length is less than 200 m. 4. Check for abnormal temperature conditions and other environ- The tractive force is 50 N. mental conditions. 5. Check for proper lighting of indicators (for models with a set indi- Mounting cator). The Proximity Sensor must not be subjected to excessive shock with Never attempt to disassemble or repair the Sensor. a hammer when it is installed, otherwise the Proximity Sensor may be damaged or lose its water-resistance. Environment Do not tighten the nut with excessive force. A washer must be used Water Resistivity with the nut. The Proximity Sensors are tested intensively on water resistance, but to ensure maximum performance and life expectancy, avoid immer- sion in water and provide protection from rain or snow. Operating Environment Store and operate the Proximity Sensor only within the given specifi- cations. Inrush Current Type Torque M8 Stainless Steel Model 9 N·m A load that has a large inrush current (e.g., a lamp or motor) will damage the Proximity Sensor. Connect the load to the Proximity Brass Model --- Sensor through a relay. M12 20 N·m M18 60 N·m M30 150 N·m OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of the products in the customer’s application or use of the products. Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will be used. Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with your OMRON representative at any time to confirm actual specifications of purchased product. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. Cat. No. D102-E2-01A-X In the interest of product improvement, specifications are subject to change without notice. D-44 Inductive Sensors