Omron E3S-AR11 2M Photoelectric Sensor
The Omron E3S-AR11 2M Photoelectric Sensor is a medium sensor with built-in amplifier, retro-reflective with M.S.R. function, offering a 2 m sensing distance using the E39-R1 reflector. It operates on a 10–30 VDC power supply and provides NPN output with a pre-wired 2 m cable connection. This model is part of the Omron automation lineup under the Omron Photoelectric Sensors category and the Omron E3S Series. It includes a red LED (660 nm) light source, Light-ON/Dark-ON selectable mode, two-turn endless sensitivity adjuster with indicator, and delivers 0.5 ms response time with IP67 protection for demanding industrial applications.
| 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 |
Omron continues to lead the sensor technology landscape with high-performance solutions like the Omron E3S-AR11 2M. Known for their engineering precision and reliability, Omron sensors are widely adopted across industries for their rugged construction and accurate detection. The Omron Built-in Amplifier Photoelectric Sensor series delivers exceptional value, especially for automated systems demanding compact, amplified sensing in harsh factory environments.
The Omron E3S-AR11 2M is a Retro-reflective Sensor with a 2-meter detection range using a Red LED light source (660 nm). It operates on 10 to 30 VDC, consumes just 30 mA, and provides NPN output with selectable Light-ON/Dark-ON modes. The 2M pre-wired cable ensures reliable connectivity. Rated IP67 and NEMA 4X (indoor), it withstands vibration, shock, and harsh lighting conditions.
Thanks to its built-in amplifier and sensitivity adjustment, the E3S AR11 2M is ideal for detecting large opaque objects on conveyors, in packaging machines, and printing equipment. The high-speed response and compact design allow seamless integration into automated systems where speed and reliability are critical. For retro-reflective sensing needs in tight spaces, the Omron E3S-AR11 2M remains a top choice in the Omron Built-in Amplifier Photoelectric Sensor family.
