Omron E3C-LD11N 2M Photoelectric Sensor
Omron E3C-LD11N 2M is a diffuse-reflective laser photoelectric sensor designed for target sensing at distances up to 1 m. Its visible semiconductor laser operates at 650 nm and is classified as Class 2, creating a focused optical spot directed toward the target surface. The diffuse-reflective sensing method works with returned light from the target, so a separate reflector or opposing receiver is not required. A pre-wired 2 m cable provides the electrical connection to associated equipment. Within the E3C Series, the E3C-LD11N 2M provides focused laser sensing in a diffuse-reflective format. For applications requiring a defined laser spot without a separate reflector, diffuse-reflective laser sensors are available across Omron Automation Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3C-LD11N 2M |
Omron E3C-LD11N 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Sensing Distance | 1 m |
| Light Source | Visible semiconductor laser (650 nm) |
| Laser Class | Class 2 |
| Connection Method | Pre-wired 2M Cable |
| Indicators | LDON indicator: Green; Operation indicator: Orange |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. |
| Ambient Temperature Range | Operating: −10 to 55°C, Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating/storage: 35% to 85% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 1,000 VAC at 50/60 Hz for 1 minute |
| Vibration Resistance | Destruction: 10 to 150 Hz with double amplitude of 0.7 mm, in X, Y, and Z directions for 80 min each |
| Shock Resistance | Destruction: 300 m/s2 6 directions 3 times each (up/down, right/left, forward/backward) |
| Degree Of Protection | IP40 (IEC) |
| Material | Case and cover: ABS Front surface filter: Methacrylic resin |
| Weight | Approx. 85 g |
The Omron E3C-LD11N 2M Photoelectric Sensor uses diffuse-reflective sensing with a focused laser spot for target sensing at distances up to 1 m. A 650 nm visible semiconductor laser provides the optical source and is classified as Class 2. Light returning from the target surface is used by the sensing head, so an opposing receiver or separate reflector is not required for this optical arrangement. A pre-wired 2 m cable provides the electrical connection between the sensing head and associated equipment. A green LDON indicator and orange operation indicator show operating status during setup and use. Ambient-light resistance is specified up to 3,000 lx under incandescent illumination. Its narrow laser spot supports applications that require a defined optical area instead of the broader light pattern commonly associated with LED-based sensing heads.
For an Omron laser photoelectric sensor requiring diffuse-reflective operation, a sensing distance up to 1 m, a Class 2 visible laser, and fixed cable wiring, the relevant model is the E3C-LD11N. Operating temperature spans -10 to 55°C, while storage extends from -25 to 70°C. ABS is specified for the case and cover, with methacrylic resin used for the front filter. The model also suits searches for an Omron diffuse laser sensor, Omron 1 m laser photoelectric sensor, and Omron separate amplifier sensor. For a related E3C laser sensing head using coaxial retro-reflective operation over a longer distance, see E3C-LR11N 2M.

