Omron E3S-AR11 2M Photoelectric Sensor
Omron E3S-AR11 2M is an NPN retro-reflective photoelectric sensor with an MSR function for sensing opaque targets across a distance of up to 2 m with the E39-R1 reflector. Its 660 nm red LED establishes the optical path, while the NPN output transfers the switching state to compatible machine-control circuitry. The sensor operates from 10 to 30 VDC and includes a 2 m pre-wired cable. Light-ON or Dark-ON operation can be selected, while a two-turn endless adjuster supports sensitivity setting. Response time is specified at 0.5 ms. Within the E3S Series, the E3S-AR11 2M provides the pre-wired NPN configuration. Explore 2 m retro-reflective sensors across Omron Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-AR11 2M |
Omron E3S-AR11 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective Sensors |
| Sensing Distance | 2 m (100 mm) |
| Standard Sensing Object | Opaque: 75-mm dia. min. |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 10 to 30 VDC, including ripple (p-p) 10% |
| Output Configuration | NPN |
| Connection Method | Pre-wired 2 M Cable |
| Current Consumption | 30 mA max. (plus approx. 15 mA with turbo function) |
| Control Output | Load power supply voltage: 30 VDC max., Load current: 100 mA max. (residual voltage: 1 V max.) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | Operation or reset: 0.5 ms max. |
| Sensitivity Adjustment | Two-turn endless adjuster with an indicator |
| Ambient Illumination | Incandescent lamp: 5,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25°C to 55°C (with no icing or condensation) Storage: −40°C to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% (with no condensation) Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC between current-carrying parts and case |
| Dielectric Strength | 1,000 VAC, 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 |
| Shock Resistance | Destruction: 500m/s2, 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply reverse polarity protection, Output short-circuit protection, Mutual interference prevention |
| Degree Of Protection | IEC IP67; NEMA: 4X (indoors only) |
| Material | PBT, Denatured polyallylate, Stainless steel (SUS304) |
| Weight | Approx. 110 g |
The Omron E3S-AR11 2M Photoelectric Sensor uses retro-reflective sensing with an MSR function for opaque targets across a maximum distance of 2 m with the E39-R1 reflector. A 660 nm red LED establishes the optical path, while the NPN output transfers the switching state to compatible machine-control circuitry. The sensor operates from 10 to 30 VDC and includes a 2 m pre-wired cable. Current consumption is specified at 30 mA maximum, with approximately 15 mA additional consumption when the turbo function is active. Load current is rated up to 100 mA with a maximum load supply voltage of 30 VDC. Light-ON or Dark-ON operation can be selected, while a two-turn endless adjuster supports sensitivity setup. Operation or reset time is specified at 0.5 ms maximum.
For an Omron NPN retro reflective photoelectric sensor requiring MSR, built-in amplification, and a 2 m sensing range, the corresponding model is the E3S-AR11. The stated sensing target is an opaque object with a minimum diameter of 75 mm. 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 without icing or condensation. Power-supply reverse polarity, output short-circuit, and mutual-interference prevention are listed. Its specification also suits searches for an Omron 2 m NPN sensor and Omron pre wired retro reflective sensor. For an E3S NPN retro-reflective model using an M12 connector instead of fixed cable wiring, see E3S-AR66.
