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Photoelectric Sensor with Built-in Amplifier (Ultracompact and Thin Type)
New Retro-reflective Sensors Added to the Series. Further Contributions to Equipment Downsizing.
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Sensors
| Sensing method | Appearance | Connection method | Sensing distance (Red light) | Operation mode | Model | ||
| NPN output | PNP output | ||||||
| Through- beam (Emitter + Receiver) *2 | ![]() | Side-view ![]() | Pre-wired (2 m) | 1 m (Sensitivity Adjustment Unit can be used.) | Light-ON | E3T-ST11 2M | E3T-ST13 2M |
| Dark-ON | E3T-ST12 2M | E3T-ST14 2M | |||||
| 300 mm | Light-ON | E3T-ST21 2M | E3T-ST23 2M | ||||
| Dark-ON | E3T-ST22 2M | E3T-ST24 2M | |||||
![]() | Flat ![]() | 500 mm | Light-ON | E3T-FT11 2M | E3T-FT13 2M | ||
| Dark-ON | E3T-FT12 2M | E3T-FT14 2M | |||||
| 300 mm | Light-ON | E3T-FT21 2M | E3T-FT23 2M | ||||
| Dark-ON | E3T-FT22 2M | E3T-FT24 2M | |||||
| Retro- reflective *3 | ![]() | Side-view ![]() | Using the E39-R4 Reflector provided 200 mm [30 mm] *1 Using the E39-R37-CA 100 mm [10 mm] *1 | Light-ON | E3T-SR41 2M *4 | E3T-SR43 2M *4 | |
| Dark-ON | E3T-SR42 2M *4 | E3T-SR44 2M *4 | |||||
| Diffuse- reflective | ![]() | Flat ![]() | Light-ON | E3T-FD11 2M | E3T-FD13 2M | ||
| Dark-ON | E3T-FD12 2M | E3T-FD14 2M | |||||
| Convergent- reflective | ![]() | Side-view ![]() | 5 to 15 mm | Light-ON | E3T-SL11 2M | E3T-SL13 2M | |
| Dark-ON | E3T-SL12 2M | E3T-SL14 2M | |||||
| 5 to 30 mm | Light-ON | E3T-SL21 2M | E3T-SL23 2M | ||||
| Dark-ON | E3T-SL22 2M | E3T-SL24 2M | |||||
| BGS reflective | ![]() | Flat ![]() | 1 to 15 mm | Light-ON | E3T-FL11 2M | E3T-FL13 2M | |
| Dark-ON | E3T-FL12 2M | E3T-FL14 2M | |||||
| 1 to 30 mm | Light-ON | E3T-FL21 2M | E3T-FL23 2M | ||||
| Dark-ON | E3T-FL22 2M | E3T-FL24 2M | |||||
*1.Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*2.The model number of the Emitter is expressed by adding an "L" to the set model number in the table. Example: E3T-ST11-L 2M
The model number of the receiver is expressed by adding a "D" to the set model number in the table. Example: E3T-ST11-D 2M
Orders for individual Emitters and Receivers are accepted. (Modifications are required for some models.)
*3.Ask your OMRON representative about the previous Retro-reflective Sensors: E3T-SR2[] and E3T-SR3[].
*4.Models are available either with or without the E39-R37-CA Reflector included.
Model with E39-R37-CA Reflector: E3T-SR4[]-S
Model without Reflector: E3T-SR4[]-C
Variety of Connection Specifications
The models with the connection specifications marked with a black circle in the table are available. The model number indication is a combination of the basic model and the connection specification.
NPN Output
| Model | Model number example | E3T-ST11-M1TJ 0.3M | E3T-ST11 5M | E3T-ST11R 2M | ||
| Sensing method | Sensing distance | Operation mode | Connection specification | M12 pre-wired Smartclick Connector (cable length: 0.3 m) | Pre-wired (cable length: 5 m) | Pre-wired robot (cable length: 2 m) |
| Basic model number | -M1TJ 0.3M | 5M | R 2M | |||
| Through- beam (side-view) | 1 m | Light-ON | E3T-ST11 | ● | ● | ● |
| Dark-ON | E3T-ST12 | ● | ● | ● | ||
| 300 mm | Light-ON | E3T-ST21 | ● | ● | --- | |
| Dark-ON | E3T-ST22 | ● | ● | --- | ||
| Through- beam (flat) | 500 mm | Light-ON | E3T-FT11 | ● | ● | ● |
| Dark-ON | E3T-FT12 | ● | ● | ● | ||
| 300 mm | Light-ON | E3T-FT21 | ● | --- | --- | |
| Dark-ON | E3T-FT22 | ● | --- | --- | ||
| Retro- reflective | 200 mm (100 mm) | Light-ON | E3T-SR41 | ● | ● | ● |
| Dark-ON | E3T-SR42 | ● | ● | ● | ||
| Diffuse- reflective | 5 to 30 mm | Light-ON | E3T-FD11 | ● | ● | ● |
| Dark-ON | E3T-FD12 | ● | ● | ● | ||
| Convergent- reflective | 5 to 15 mm | Light-ON | E3T-SL11 | ● | ● | ● |
| Dark-ON | E3T-SL12 | ● | ● | ● | ||
| 5 to 30 mm | Light-ON | E3T-SL21 | ● | ● | ● | |
| Dark-ON | E3T-SL22 | ● | ● | ● | ||
| BGS reflective | 1 to 15 mm | Light-ON | E3T-FL11 | ● | --- | ● |
| Dark-ON | E3T-FL12 | ● | --- | ● | ||
| 1 to 30 mm | Light-ON | E3T-FL21 | ● | --- | ● | |
| Dark-ON | E3T-FL22 | ● | --- | ● | ||
| Model | Model number example | E3T-ST11-ECON 0.3M | E3T-ST11-ECON 2M | ||
| Sensing method | Sensing distance | Operation mode | Connection specification | e-CON pre-wired connector (cable length: 0.3 m) | e-CON pre-wired connector (cable length: 2 m) |
| Basic model number | -ECON 0.3M | -ECON 2M | |||
| Through- beam (side-view) | 1 m | Light-ON | E3T-ST11 | ● | ● |
| Dark-ON | E3T-ST12 | ● | ● | ||
| 300 mm | Light-ON | E3T-ST21 | ● | ● | |
| Dark-ON | E3T-ST22 | ● | ● | ||
| Through- beam (flat) | 500 mm | Light-ON | E3T-FT11 | ● | ● |
| Dark-ON | E3T-FT12 | ● | ● | ||
| 300 mm | Light-ON | E3T-FT21 | ● | ● | |
| Dark-ON | E3T-FT22 | ● | ● | ||
| Retro- reflective | 200 mm (100 mm) | Light-ON | E3T-SR41 | ● | ● |
| Dark-ON | E3T-SR42 | ● | ● | ||
| Diffuse- reflective | 5 to 30 mm | Light-ON | E3T-FD11 | ● | ● |
| Dark-ON | E3T-FD12 | ● | ● | ||
| Convergent- reflective | 5 to 15 mm | Light-ON | E3T-SL11 | ● | ● |
| Dark-ON | E3T-SL12 | ● | ● | ||
| 5 to 30 mm | Light-ON | E3T-SL21 | ● | ● | |
| Dark-ON | E3T-SL22 | ● | ● | ||
| BGS reflective | 1 to 15 mm | Light-ON | E3T-FL11 | --- | --- |
| Dark-ON | E3T-FL12 | --- | --- | ||
| 1 to 30 mm | Light-ON | E3T-FL21 | ● | --- | |
| Dark-ON | E3T-FL22 | --- | --- | ||
*The sensing distance depends on the Reflector that is used. The sensing distance is 200 mm if an E39-R4 is used and 100 mm if an E39-R37-CA is used.
PNP Output
| Model | Model number example | E3T-ST13-M1TJ 0.3M | E3T-ST13 5M | E3T-ST13R 2M | ||
| Sensing method | Sensing distance | Operation mode | Connection specification | M12 pre-wired Smartclick Connector (cable length: 0.3 m) | Pre-wired (cable length: 5 m) | Pre-wired robot (cable length: 2 m) |
| Basic model number | -M1TJ 0.3M | 5M | R 2M | |||
| Through- beam (side-view) | 1 m | Light-ON | E3T-ST13 | ● | ● | ● |
| Dark-ON | E3T-ST14 | ● | ● | ● | ||
| 300 mm | Light-ON | E3T-ST23 | ● | --- | --- | |
| Dark-ON | E3T-ST24 | ● | --- | --- | ||
| Through- beam (flat) | 500 mm | Light-ON | E3T-FT13 | ● | ● | ● |
| Dark-ON | E3T-FT14 | ● | ● | ● | ||
| 300 mm | Light-ON | E3T-FT23 | ● | --- | --- | |
| Dark-ON | E3T-FT24 | ● | ● | --- | ||
| Retro- reflective | 200 mm (100 mm) | Light-ON | E3T-SR43 | ● | ● | ● |
| Dark-ON | E3T-SR44 | ● | ● | ● | ||
| Diffuse- reflective | 5 to 30 mm | Light-ON | E3T-FD13 | ● | ● | ● |
| Dark-ON | E3T-FD14 | ● | ● | ● | ||
| Convergent- reflective | 5 to 15 mm | Light-ON | E3T-SL13 | ● | ● | ● |
| Dark-ON | E3T-SL14 | ● | ● | ● | ||
| 5 to 30 mm | Light-ON | E3T-SL23 | ● | ● | ● | |
| Dark-ON | E3T-SL24 | ● | ● | ● | ||
| BGS reflective | 1 to 15 mm | Light-ON | E3T-FL13 | ● | --- | ● |
| Dark-ON | E3T-FL14 | ● | --- | ● | ||
| 1 to 30 mm | Light-ON | E3T-FL23 | ● | --- | ● | |
| Dark-ON | E3T-FL24 | ● | --- | ● | ||
*The sensing distance depends on the Reflector that is used. The sensing distance is 200 mm if an E39-R4 is used and 100 mm if an E39-R37-CA is used.
Accessories (Order Separately)
Slits
| Slit width | Sensing distance (typical) (Sensor model) | Minimum detectable object (typical) | Model | Quantity | Remarks |
| 0.5-mm dia. | 100 mm (E3T-ST1[]) | 0.5-mm dia. | E39-S63 | One each for Emitter and Receiver; common with Slit widths of 1 dia. and 0.5 dia. (total of 2) | Plug-in type round slits Can be used with E3T-ST[][] Through-beam Models. |
| 30 mm (E3T-ST2[]) | |||||
| 1-mm dia. | 300 mm (E3T-ST1[]) | 1-mm dia. | |||
| 100 mm (E3T-ST2[]) | |||||
| 0.5-mm dia. | 50 mm (E3T-FT1[]) | 0.5-mm dia. | E39-S64 | Plug-in type round slits Can be used with E3T-FT[][] Through-beam Models. | |
| 30 mm (E3T-FT2[]) | |||||
| 1-mm dia. | 100 mm (E3T-FT1[]) | 1-mm dia. | |||
| 50 mm (E3T-FT2[]) |
Reflectors
| Name | Recommended Sensor | Sensing distance | Minimum detectable object | Model | Quantity | Remarks |
| Small Reflectors | E3T-SR4[] | 200 mm (30 mm) *1 | 2-mm dia. | E39-R4 | 1 | Provided with the E3T-SR4[] |
| E3T-SR4[]-S | 100 mm (10 mm) *1 | E39-R37-CA * 2 | Provided with the E3T-SR4[]-S | |||
| Tape Reflectors | E3T-SR4[]-C | 100 mm (10 mm) *1 | E39-RS1-CA * 2 | Use Tape Reflectors in combination with the E3T-SR4[]-C, which does not come with a Reflector. | ||
| E39-RS2-CA * 2 | ||||||
| E39-RS3-CA * 2 |
*1Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
*2.The E3T-SR4[] cannot be used with the E39-R37 or E39-RS1/2/3 (without CA) Tape Reflectors.
The E39-[]-CA Reflector is for use only with the E3T-SR4[]. It cannot be used with other Sensors.
Sensitivity Adjustment Unit
| Appearance | Sensing distance (typical) | Model | Quantity | Remarks |
![]() | 300 to 800 mm | E39-E10 | 1 | Can be used with the E3T-ST1[] Through-beam Models. |
Mounting Brackets
| Appearance | Model | Quantity | Remarks |
![]() | E39-L116 | 1 | Can be used with the E3T-S[][][] Side-view Models. (A securing nut plate is provided with the Mounting Bracket.) |
![]() | E39-L117 | ||
![]() | E39-L118 | ||
![]() | E39-L119 | Can be used with the E3T-F[][][] Flat Models. | |
![]() | E39-L120 |
Note:When using Through-beam models, order one bracket for the Receiver and one for the Emitter.
Set of Mounting Screws
| Applicable sensors | Model | Description | Material | Quantity | Remarks |
| Side-view models E3T-S[][][] | E39-L164 | Phillips screws (M2 × 14) Hexagonal nuts (M2) Spring washers (M2) Flat washers (M2) | Iron, zinc plating Iron, zinc plating Iron, nickel plating Iron, zinc plating | 2 for each | Provided with the side-view models E3T-S[][][]. |
| Flat models E3T-F[][][] | E39-L165 | Phillips screws (M2 × 8) Hexagonal nuts (M2) Spring washers (M2) Flat washers (M2) | Iron, zinc plating Iron, zinc plating Iron, nickel plating Iron, zinc plating | Provided with the flat models E3T-F[][][]. |
Note:If a Through-beam Model is used, order two sets of Mounting Screws, one for the Emitter and one for the Receiver.
Used for mounting sensors. Order the set separately if it becomes lost or damaged.
These screws are not used for mounting brackets to the equipment.
Sensor I/O Connectors
| Size | Cable | Appearance | Cable type | Model | |
| M12 (For -M1TJ models) | Standard | ![]() | 2 m | 4-wire | XS5F-D421-D80-A |
| 5 m | XS5F-D421-G80-A | ||||
| e-CON | Standard cable | ![]() | 2 m | 4-wire | E39-ECON2M |
| 5 m | E39-ECON5M | ||||
![]() | 0.5 to 1 m | E39-ECONW[]M Replace [] with the cable length in 0.1-m increments. | |||
| 1.1 to 1.5 m | |||||
| 1.6 to 2 m | |||||
Note:When using Through-beam models, order one connector for the Receiver and one for the Emitter.