Omron E3S-CT11 2M Photoelectric Sensor
Omron E3S-CT11 2M is a through-beam photoelectric sensor designed for long-distance object sensing across a maximum range of 30 m. The E3S-CT11-L emitter sends 850 nm infrared light toward the E3S-CT11-D receiver, creating the optical path used to monitor object passage. The sensor operates from 10 to 30 VDC and supports selectable NPN or PNP open-collector output. Light-ON or Dark-ON operation can be selected, while response time is specified at 1 ms. Both sensing units use pre-wired cables for electrical connection. Within the E3S Series, the E3S-CT11 2M provides the long-range pre-wired through-beam configuration. Explore 30 m through-beam sensors across Omron Sensing Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-CT11 2M |
Omron E3S-CT11 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 30 m |
| Emitter Number | E3S-CT11-L 2M |
| Receiver Number | E3S-CT11-D 2M |
| Light Source | Infrared LED (850 nm) |
| Power Supply Voltage | 10 to 30 VDC |
| Connection Method | Pre-wired 2 M cable |
| Control Output | Load power supply voltage: 30 VDC max. Load current: 100 mA max. (Residual voltage: NPN output: 1.2 V max., PNP output: 2.0 V max.) Open controller output (NPN/PNP selectable) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | Operate or reset: 1 ms max |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 5,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25°C to 55°C, Storage: −40°C to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ 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 for 0.5 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 1,000 m/s2 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply reverse polarity circuit protection, Output short-circuit protection |
| Degree Of Protection | IEC 60529: IP67 (in-house standards: oil-resistant), NEMA: 6P (indoors only) |
| Weight | Approx. 270 g |
The Omron E3S-CT11 2M Photoelectric Sensor uses through-beam sensing across a maximum distance of 30 m. The E3S-CT11-L emitter sends 850 nm infrared light toward the E3S-CT11-D receiver, creating the optical path used to monitor target passage. The sensor operates from 10 to 30 VDC and supports selectable NPN or PNP open-collector output. Load current is rated at 100 mA maximum with load supply voltage up to 30 VDC. Light-ON or Dark-ON operation can be selected, while a one-turn adjuster supports setup. Both units use pre-wired cables for electrical connection. Operate or reset time is specified at 1 ms maximum, supporting rapid changes in the output state when an object interrupts the beam.
For an Omron long range through beam photoelectric sensor requiring a 30 m sensing distance and selectable NPN/PNP output, the corresponding model is the E3S-CT11. Ambient-light resistance reaches 5,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -25 to 55°C, while storage ranges from -40 to 70°C. Power-supply reverse polarity and output short-circuit protection are included. The specification also suits searches for an Omron 30 m through beam sensor and Omron emitter receiver photoelectric sensor. For an E3S connector-based 30 m through-beam version using an M12 electrical interface, see E3S-CT66.
