Omron E3S-CR11 2M Photoelectric Sensor
Omron E3S-CR11 2M is a retro-reflective photoelectric sensor designed for object sensing across a distance of up to 3 m. Its 660 nm red LED establishes the optical path toward a reflector, while returned light provides the information required for switching. The sensor operates from 10 to 30 VDC and supports selectable NPN or PNP open-collector output for compatible control circuitry. Light-ON or Dark-ON operation can be selected, while a one-turn adjuster supports sensitivity setting. Response time is specified at 1 ms, and a 2 m pre-wired cable provides electrical connection. Within the E3S Series, the E3S-CR11 2M provides the 3 m reflector-based configuration. Explore 3 m retro-reflective sensors across Omron Automation Sensors.
| 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 Photoelectric Sensor uses retro-reflective sensing across a maximum distance of 3 m. Its 660 nm red LED establishes the optical path toward a reflector, while changes in the returned light provide the switching information. The sensor operates from 10 to 30 VDC and includes a 2 m pre-wired cable for electrical connection. NPN or PNP open-collector output can be selected, with load current rated at 100 mA maximum and load supply voltage up to 30 VDC. Light-ON or Dark-ON operation is selectable, while a one-turn adjuster supports sensitivity setting. Current consumption is specified at 40 mA maximum, and operate or reset time is specified at 1 ms maximum.
For an Omron retro reflective photoelectric sensor requiring 3 m sensing and selectable NPN/PNP output, the relevant model is the E3S-CR11. Ambient-light resistance reaches 5,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -25 to 55°C, with storage from -40 to 70°C without icing or condensation. Power-supply reverse polarity, output short-circuit, and mutual-interference prevention are listed. Its configuration also matches searches for an Omron 3 m retro reflective sensor and Omron pre wired photoelectric sensor. For an E3S long-range through-beam version using a 30 m optical path, see E3S-CT11 2M.
