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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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Quick links OMRON IA Photoelectric Sensors in your country.
Please contact our European headquarters.
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 E37-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.
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.