"Mini" Photoelectric Sensor E3T High cost-performance "Mini" Photoelectric Sensor Saves Installation Space and Wiring Effort and Detects Minute Sensing Objects "Pin-point" beam (1 to 2-mm dia.) makes it possible to detect minute sensing objects. Saves wiring effort, even with compact body. Work steps can be reduced to half with the retroreflective or limited reflective model. Easy-to-use with a clearly-visible "Pin-point" beam. Long sensing distance of 1 meter is possible with the through-beam model. Ordering Information Photoelectric Sensors Item Sensing method Through-beam Retroreflective Diffuse reflective Limited reflective Appearance pp Side-view Flat Side-view Flat Side-view Sensing distance 1m 500 mm 200 mm (10 mm) (see note) 5 to 30 mm 5 to 15 mm 5 to 30 mm NPN E3T-ST11 E3T-FT11 E3T-SR11 E3T-FD11 E3T-SL11 E3T-SL21 PNP E3T-ST13 E3T-FT13 E3T-SR13 E3T-FD13 E3T-SL13 E3T-SL23 NPN E3T-ST12 E3T-FT12 E3T-SR12 E3T-FD12 E3T-SL12 E3T-SL22 PNP E3T-ST14 E3T-FT14 E3T-SR14 E3T-FD14 E3T-SL14 E3T-SL24 Model Light-ON g Dark-ON Note: Set the distance between the Sensor and Reflector to a value larger than the one indicated in parentheses. Accessories (Order Separately) Slits For E3T-ST1j For E3T-FT1j Sensing distance (typical) Minimum sensing object (typical) 0.5 dia. 100 mm 0.5 dia. 1 dia. 300 mm 1 dia. Slit width Model Remarks Slit width Sensing distance Minimum sensing object (typical) E39-S63 One each for Emitter and Receiver; common with Slit widths of 1 dia. and 0.5 dia. 0.5 dia. 50 mm 0.5 dia. 1 dia. 100 mm 1 dia. Model Remarks E39-S64 One each for Emitter and Receiver; common with Slit widths of 1 dia. and 0.5 dia. 1 E3T E3T Reflectors Name For retroreflective model Mounting Brackets Sensing distance Minimum sensing object (typical) 200 mm (10 mm) (rated value) (see note 2) 2 dia. 100 mm (10 mm) (see note 2) Note: Model Model Appearance E39-L116 E39-R4 (see note 1) E39-R37 1. Attached to the E3T-SR1j retroreflective model. 2. Set the distance between the Sensor and Reflector to a value larger than the one indicated in parentheses. Applied model Remarks Common with the E3T-Sj. Two mounting brackets are required for through-beam models. E39-L117 E39-L118 Sensitivity Adjustment Unit For E3T-ST1j Appearance Sensing distance (typical) 300 to 800 mm Model E39-E10 Common with the E3T-Fj. E39-L119 E39-L120 Application Examples Detection of Lead Frame Rise (Pressure Machines) Checking of IC Set (Handler) E3T-ST1j E3T-ST1j E3T-ST1j Detection of IC Chips on Tape (Taping Machines) Conventional photoelectric sensor Malfunctions due to the light reflection of the metal surface. Detection of Cassette or Magazine on the Conveyor Reflector IC chip E3T-ST1j E3T-SR1j 2 E3T E3T Specifications Ratings/Characteristics E3T-jjjj Through-beam Item Side-view Light-ON Dark-ON Retroreflective Limited reflective Flat Diffuse reflective Side-view Flat NPN PNP NPN PNP NPN PNP NPN PNP NPN PNP NPN PNP -ST11 -ST13 -FT11 -FT13 -SR11 -SR13 -SL11 -SL13 -SL21 -SL23 -FD11 -FD13 -ST12 -ST14 -FT12 -FT14 -SR12 -SR14 -SL12 -SL14 -SL22 -SL24 -FD12 -FD14 Sensing distance 1 m (Sensitivity Adjustment Unit is available) Standard sensing object (white paper) 500 mm 200 mm (10 mm) (see note) (with the E39-R4) 5 to 15 mm (50 x 50 mm white paper) Opaque, 2 dia. min. Opaque, 27 dia. min. --- Min. sensing object (typical) Opaque, 2 dia. min. 2 dia. (sensing distance of 100 mm) 0.15 dia. (sensing distance of 10 mm) Differential travel --- Directional angle Emitter: 3 to 10 Receiver: 3 to 70 Light source (wave length) Red LED ("Pin-point" LED) (=670 nm) Power supply voltage 12 to 24 VDC 10%, ripple (p-p) 10% max. Current consumption Emitter/Receiver: 12 mA max. Control output Open collector, load current: 50 mA max. at 24 VDC, residual voltage: 1 V max., operation mode: Light ON or Dark ON (separate models) Circuit protection Protection from reversed power supply connection and output short-circuit Protection Protection from reversed power supply connection and output short-circuit Response time 1 ms max. each for operation and release Ambient illumination (on Receiver lens) Incandescent lamp: 5,000 x max. Sunlight: 10,000 x max. Ambient temperature Operating: -25C to 55C Storage: -40C to 70C (with no icing or condensation) Ambient humidity Operating: 35% to 85% Storage: 35% to 95% (with no condensation) Insulation resistance 20 M min. (at 500 VDC) Dielectric strength 1,000 VAC, 50/60 Hz for 1 min Vibration resistance Destruction: 10 to 2,000 Hz, 1.5-mm double amplitude or 300 m/s2 (approx. 30G) for 0.5 hrs each in X, Y, and Z directions Shock resistance Destruction: 1,000 m/s2 (approx. 100G) 3 times each in X, Y, and Z directions Degree of protection IEC60529: IP67 Connection method Prewired (standard length: 2 m) Weight (with packaging) Approx. 40 g 2 mm max. Emitter: 3 to 13 Receiver: 3 to 70 Emitter: 2 to 5 5 to 30 mm (50 x 50 mm white paper) 6 mm max. 5 to 30 mm (50 x 50 mm white paper) 6 mm max. --- 24 VDC 10% 20 mA max. Protection from reversed power supply connection, output short-circuit, and mutual interference Approx. 20 g 3 E3T E3T Item Through-beam Side-view Light-ON Dark-ON Retroreflective Limited reflective Flat Diffuse reflective Side-view Flat NPN PNP NPN PNP NPN PNP NPN PNP NPN PNP NPN PNP -ST11 -ST13 -FT11 -FT13 -SR11 -SR13 -SL11 -SL13 -SL21 -SL23 -FD11 -FD13 -ST12 -ST14 -FT12 -FT14 -SR12 -SR14 -SL12 -SL14 -SL22 -SL24 -FD12 -FD14 Materials Case: PBT Lens and cover: Polycarbonate Accessories Phillips-head screws (side-view type: M2 x 14, flat type: M2 x 8), nuts, spring washers, flat washers, instruction sheet, and Reflector (for retroreflective model only) Note: Set the distance between the Sensor and Reflector to a value larger than the one indicated in parentheses. Engineering Data Excess Gain vs. Set Distance (Typical) E3T-FT1j (Through-beam) E3T-SR1j with E39-R4 (Retroreflective) Excess gain ratio Excess gain ratio Excess gain ratio E3T-ST1j (Through-beam) Operation level Excess gain ratio E3T-FD1j(Diffuse Reflective) White paper Black paper 400 800 1200 1600 E3T-SL1j(Limited Reflective) White paper 4 Operation level Set distance (mm) E3T-SL2j(Limited Reflective) White paper Operation level Operation level Black paper Set distance (mm) 2000 Set distance (mm) Excess gain ratio 0 Set distance (mm) Excess gain ratio Operation level Set distance (mm) Black paper Set distance (mm) E3T (Retroreflective) E3T-ST1j with Slit E3T-ST1j with Slit (Enlarged graph) E3T-SR1j with E39-R4 Distance Y (mm) Without Slit 1-dia. Slit 0.5-dia. Slit 400 800 1,200 1,600 Distance Y (mm) Parallel Operating Range (Typical) (Through-beam) Distance Y (mm) E3T 1-dia. Slit 0.5-dia. Slit 2,000 Distance X (mm) Distance X (mm) Distance X (mm) E3T-FT1j with Slit (Enlarged graph) 1-dia. Slit Distance Y (mm) Distance Y (mm) E3T-FT1j with Slit Without Slit 0.5-dia. Slit 200 400 600 800 1-dia. Slit 0.5-dia. Slit Distance X (mm) 1,000 Distance X (mm) E3T-SL1j (Left and Right) Sensing distance change rate (%) Sensing object: 100 x 100 mm white paper Close-distance Sensing Capability (Typical) E3T-SL1j, E3T-SL2j, E3T-FD1j Sensing distance (mm) E3T-SL1j (Up and Down) Sensing distance change rate (%) Angle Characteristics (Typical) Sensing object: 100 x 100 mm white paper Angle () Angle () j White paper J Black paper E3T-SL1j E3T-SL2j E3T-FD1j Sensing Object Size vs. Sensing Distance (Typical) E3T-SL1j Min. sensing object dia. (mm) Min. sensing object dia. (mm) E3T-FD1j, E3T-SL2j Sensing object: Pin-gauge, stainless steel E3T-FD1j E3T-SL2j Sensing distance (mm) Sensing distance (mm) 5 E3T E3T Sensing object: 50 x 50 mm white paper Sensing distance X (mm) E3T-SL1j (Limited Reflective) E3T-SL2j (Limited Reflective) Operating position Y (mm) Operating position Y (mm) E3T-FD1j (Diffuse Reflective) Operating position Y (mm) Operation Range (Typical) Sensing object: 50 x 50 mm white paper Sensing distance X (mm) Sensing Distance Characteristics of Sensitivity Adjustment Unit (when completing optical axis adjustment) Sensing distance (m) E3T-SL1j with E39-E10 Sensitivity adjustment level 6 Sensing object: 50 x 50 mm white paper Sensing distance X (mm) E3T E3T Operation Output Circuits NPN Output Configuration Model State of output transistor Timing chart E3T-jjj1 E3T-jjj2 Light ON Dark ON Light received Light received Light not received Light not received Operation indicator (orange) OFF Operation indicator (orange) Output transistor OFF Load (relay) ON ON Output transistor Operate Load (relay) Release (Between brown and black) Output circuit ON OFF ON OFF Operate Release (Between brown and black) Emitter (Through-beam Models) Brown Photoelectric Sensor main circuit 12 to 24 VDC Blue Receiver (Through-beam Models), Retroreflective, Diffuse Reflective, and Limited Reflective Models Operation indicator (orange) Stability indicator (green) Photoelectric Sensor main circuit Brown 50 mA max. Black Blue 12 to 24 VDC Load (relay) 0V 7 E3T E3T PNP Output Configuration Model State of output transistor Timing chart E3T-jjj3 E3T-jjj4 Light ON Dark ON Light received Light received Light not received Light not received Operation indicator (orange) OFF Operation indicator (orange) Output transistor OFF Load (relay) ON ON Output transistor Operate Load (relay) Release (Between brown and black) Output circuit ON OFF ON OFF Operate Release (Between brown and black) Emitter (Through-beam Models) Brown Photoelectric Sensor main circuit 12 to 24 VDC Blue Receiver (Through-beam Models), Retroreflective, Diffuse Reflective, and Limited Reflective Models Operation indicator (orange) Stability indicator (green) Photoelectric Sensor main circuit 8 Brown Black 50 mA max. Blue 12 to 24 VDC Load (relay) E3T E3T Dimensions Note: All units are in millimeters unless otherwise indicated. Photoelectric Sensors Through-beam Models (Side-view Type) E3T-ST1j (Emitter) Mounting Holes Two, 2.2 dia. Two, M2 Lens (1.7 dia.) Emitter Polyvinyl chloride-covered cord, 2.4-mm dia. (7/0.127 dia.), 2 cores Standard length: 2 m (Receiver) Operation indicator Mounting Holes Stability indicator Lens (2 dia.) Two, M2 Two, 2.2 dia. Receiver Polyvinyl chloride-covered cord, 2.4-mm dia. (7/0.127 dia.), 3 cores Standard length: 2 m Retroreflective Models (Side-view Type) E3T-SR1j Operation indicator Stability indicator Two, 2.2 dia. Mounting Holes Two, M2 Lens (2 dia.) Emitter and Receiver Polyvinyl chloride-covered cord, 2.4-mm dia. (7/0.127 dia.), 3 cores Standard length: 2 m 9 E3T E3T Limited Reflective Models (Side-view Type) E3T-SL1j E3T-SL2j Stability indicator Operation indicator Mounting Holes Two, 2.2 dia. Two, M2 Lens (3.7 x 2) Emitter Receiver Lens (4.4 x 2) Polyvinyl chloride-covered cord, 2.4-mm dia. (7/0.127 dia.), 3 cores Standard length: 2 m Through-beam Models (Flat Type) E3T-FT1j (Emitter, Receiver) Operation indicator (see note) Stability indicator (see note) Two, R2 Mounting Holes Optical axis Two, M2 Lens (1.3 dia.) Two, 2.2 dia. Polyvinyl chloride-covered cord, 2.4-mm dia. (7/0.127 dia.), 3 cores Standard length: 2 m Note: For E3T-FT11/-FT13 and E3T-FT12/-FT14 Receivers only. Diffuse Reflective Models (Flat Type) E3T-FD1j Operation indicator Stability indicator Two, R2 0.2 Lens (1.5 dia.) Emitter Mounting Holes Two, M2 Optical axis Receiver Lens (3.1 dia.) Two, 2.2 dia. Polyvinyl chloride-covered cord, 2.4-mm dia. (7/0.127 dia.), 3 cores Standard length: 2 m 10 1.75 E3T E3T Accessories Reflector (Attached to Retroreflective Models) E39-R4 E39-R37 Mounting Plate Reflector Acrylic resin on reflecting surface Reflector t* 0.6 (with adhesive) Material Surface: Acrylic Back: ABS Two, 3.1 dia. Two, 2.2 dia. Note: Stainless steel mounting plate (t* 0.5) A reflector and a stainless steel mounting plate are supplied together as a set. Slits (Order Separately) Through-beam E3T-ST1j with E39-S63 With Slit mounted E39-S64 (for Through-beam E3T-FT1j) With Slit mounted Two, 2.2 dia. 1.00.05 dia. 0.50.05 dia. 2.7 12.6 2.7 Notch 1 dia. 0.5 dia. Note: Align the notch direction of the Slit when installing on the Emitter and Receiver. Material: 0.2-mm-thick stainless steel (SUS301) Material: 0.2-mm-thick stainless steel (SUS301) Sensitivity Adjustment Unit (for E3T-ST1j) E39-E10 When the Sensitivity Adjustment Unit is mounted Optical axis 2 dia. Adjuster Material: Stainless steel (SUS301) 11 E3T E3T Mounting Brackets for E3T-Sj (Order Separately) E39-L116 (Two, R1.7) (Two, R2) (Two, R2) (Two, R1.1) (Two, R1.2) R1.5 max. Material: 1.2-mm-thick stainless steel (SUS304) E3T-ST11 with E39-L116 (Four, R2) Three, M2 Two, M2 x 14 E39-L117 R1 max. (Two, R1.7) Two, R2 (Two, R2) (Two, R1.7) (Two, R1.1) Material: 1.2-mm-thick stainless steel (SUS304) E3T-ST11 with E39-L117 Two, M2 x 14 (Four, R2) 12 Three, M2 E3T E3T E39-L118 (Two, R1.7) Material: 1.2-mm-thick stainless steel (SUS304) (Four, R2) (Two, R1.1) E3T-ST11 with E39-L118 (Four, R2) Three, M2 Two, M2 x 14 Mounting Brackets for E3T-FT1j/E3T-FD1j E3T-FT11 with E39-L119 E39-L119 Four, M2 tapping holes Two, M2 x 8 Material: 1.2-mm-thick stainless steel (SUS304) E39-L120 E3T-FT11 with E39-L120 Four, M2 tapping holes Two, M2 x 8 Material: 1.2-mm-thick stainless steel (SUS304) 13 E3T E3T Precautions Do not apply AC power to the E3T, otherwise the E3T may be damaged. Do not impose any voltage exceeding the rated voltage on the E3T, otherwise the E3T may be damaged. Do not short-circuit the load connected to the E3T, otherwise the E3T may be damaged. When supplying power to the E3T, make sure that the polarity of the power is correct, otherwise the E3T may be damaged. Correct Use Operating Environment Do not install the E3T in the following places. Doing so may cause the E3T to malfunction. Places where the E3T is exposed to direct sunlight. Places with high humidity and where condensation may result. Places with corrosive gas Places with vibration or shock affecting the E3T High-tension Lines The power supply lines of the Photoelectric Sensor must not be wired alongside power lines or high-tension lines in the same conduit, otherwise the Photoelectric Sensor may become damaged or malfunction due to induction noise that may be generated from the power lines or high-tension lines. Cord The cord can be extended up to 100 m provided that the thickness of the cord is 0.3 mm2 maximum. Power Supplies Be sure to ground the FG (frame ground) and G (ground) terminals if a switching regulator is connected to the E3T, otherwise the E3T may malfunction due to the switching noise of the switching regulator. Indicators The following graphs indicate the status of each operation level. Be sure to use the E3T within the stable operating range. Stable operation range Light ! Caution Stability indicator (green) Operation indicator (orange) E3T-jjj1 E3T-jjj2 E3T-jjj3 E3T-jjj4 ON ON OFF OFF ON Operation level x 1.2 Unstable operation range Stable operation range Note: Operation level OFF Operation level x 0.8 ON If the E3T's operation level is set to the stable operation range, the E3T will be in most reliable operation without being influenced by temperature change, voltage fluctuation, dust, or setting change. If the operation level cannot be set to the stable operation range, pay attention to environmental changes while operating the E3T. Use of E39-E10 Sensitivity Adjustment Unit (Dark ON: E3T-ST12/ST14) (At Min.) (At Center) (At Max.) Indicator Adjuster Water Resistivity Do not use the E3T underwater, outdoors, or in the rain. Load short-circuit protection The E3T incorporates a load short-circuit protection function. If the load short-circuits, the output of the E3T will be turned OFF. Then, recheck the wiring and turn on the E3T again to reset the load shortcircuit protection function. The load short-circuit protection function will work if there is a current flow that is 2.4 times larger than the rated load current. When using an inductance load, be sure that the inrush current will not exceed 2.4 times larger than the rated current. Cleaning Paint thinner will damage the casing of the E3T. Do not apply paint thinner when cleaning the E3T. Others When mounting the E3T, do not strike the E3T with a hammer. Otherwise, the E3T will lose its watertight properties. Use M2 screws and washers to mount the E3T. 1. Mount the Unit on the Receiver. 2. Set the adjuster of the Sensitivity Adjustment Unit to Max. (Before shipping: Max.) 3. After mounting on the Sensor, adjust the optical axis and secure the Sensor. 4. Place a workpiece between the Emitter and Receiver and gradually turn the adjuster counterclockwise toward the Min. side. Stop turning the adjuster when the operation indicator and stability indicator (green) turn ON. 5. Remove the workpiece and confirm that the operation indicator is OFF and the stability indicator (green) is ON. This completes the adjustment. Note: If the light attenuation rate due to a workpiece is 40% or less, the stability indicator will not turn ON whether or not light is received. When the variation of light is small such as when sensing semi-transparent workpieces, carefully perform preliminary testing. Turning ON Power Supply The E3T will become ready for sensing 100 ms after the power is turned ON. If the E3T is connected to a power source different from one for loads, be sure to turn ON the power supply to the E3T first. 14 E3T E3T 15 E3T E3T 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. E262-E1-3 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Sensors Division Sensing Devices and Components Division H.Q. 28th Fl., Crystal Tower Bldg. 1-2-27, Shiromi, Chuo-ku, Osaka 540-6028 Japan Phone: (81)6-949-6012 Fax: (81)6-949-6021 16 Printed in Japan 0398-2M (0497) a