Omron E3S-CR11 2M Photoelectric Sensor
The Omron E3S-CR11 2M Photoelectric Sensor offers Retro-reflective, 3 m Sensing distance, Pre-wired 2 M cable, Red LED (660 nm), 10 to 30 VDC Power supply voltage, Light-ON/Dark-ON selectable mode. Manufactured by Omron under the Omron Photoelectric Sensors category, this model belongs to the Omron E3S Series.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-CR11 2M |
Omron E3S-CR11 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective |
| Sensing Distance | 3 m |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 10 to 30 VDC |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 40 mA max |
| 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 protection, Output short-circuit protection, Mutual interference prevention |
| Degree Of Protection | IEC 60529: IP67 (in-house standards: oil-resistant), NEMA: 6P (indoors only) |
| Weight | Approx. 160 g |
The Omron E3S-CR11 2M is a rugged photoelectric sensor built for demanding industrial environments. Utilizing a retro-reflective sensing method, it detects targets up to 3 meters away using a red LED light source (660 nm) in combination with a standard reflector. This model is ideal for object detection in systems where space constraints or environmental exposure would make through-beam setups impractical.
Operating on 10 to 30 VDC (with 10% ripple), the E3S-CR11 2M offers a selectable NPN/PNP open collector output, supporting up to 100 mA of load current. The output can be configured in either Light-ON or Dark-ON mode, allowing system designers flexibility in logic design. With a fast response time of 1 ms max. and a one-turn sensitivity adjuster, it provides quick and stable switching for high-speed automation equipment.
This sensor is built with resilience in mind. It consumes only 40 mA max. and includes built-in protection circuits for reverse polarity, output short-circuit, and mutual interference prevention. It’s designed to function in tough indoor environments, tolerating incandescent light up to 5,000 lx and sunlight up to 10,000 lx. Operating temperature ranges from −25°C to 55°C, with storage rated down to −40°C and up to 70°C.
Mechanically, the E3S-CR11 2M passes vibration resistance tests (10–2,000 Hz, 1.5-mm amplitude) and shock resistance up to 1,000 m/s² in all three axes. The housing meets IEC IP67 and NEMA 6P (indoor use only) standards, and is tested in oil-resistant conditions under Omron’s in-house validation.
Common applications include conveyor lines, parts detection, material handling, and packaging systems in automotive and food processing industries. The Omron E3S-CR11 2M offers a durable, oil-resistant sensing solution with flexible output options and fast response, making it a dependable choice for automation integrators.
