Omron E3JK-RR12 2M Photoelectric Sensor
Omron E3JK-RR12 2M Photoelectric Sensor is designed for stable long-range object detection in industrial automation systems. This Omron Retro Reflective Sensor supports a sensing range from 100 mm to 10 m using the E39-R2 reflector and operates with a selectable AC/DC power supply. It features relay output, MSR function, a red LED light source, and a durable 2 m pre-wired cable for reliable industrial operation. Commonly identified as E3JK-RR12 and Omron reflective sensor in automation environments, this model supports dependable detection across conveyors and packaging systems. Manufactured by Omron automation, it belongs to the photoelectric sensing range and the E3JK series sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3JK-RR12 2M |
Omron E3JK-RR12 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective with MSR function |
| Sensing Distance | When using the E39-R1: 100 mm to 6 m; When using the E39-R2: 100 mm to 10 m |
| Light Source | Red LED (624 nm) |
| Power Supply Voltage | 24 to 240 VDC , ripple (p-p): 10% max. 24 to 240 VAC , 50/60 Hz |
| Output Configuration | Relay |
| Connection Method | Pre Wired, Cable Length 2M |
| Power Consumption | DC: 2 W max. AC: 2 W max. |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | 20 ms max |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max., Sunlight: 11,000 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 | 1,500 VAC, 50/60 Hz for 1 min |
| Protection Circuits | Mutual interference prevention function |
| Degree Of Protection | IEC 60529 IP64 |
| Material | ABS (Acrylonitrile Butadiene Styrene) |
| Weight | Approx. 180 g |
The Omron E3JK-RR12 2M is developed for industrial automation systems that require stable retro-reflective sensing with reliable object detection performance. Its relay output structure and MSR function support accurate switching behavior in conveyors, filling lines, and automated material handling systems where continuous sensing stability is important. Engineers selecting E3JK-RR12 configurations typically consider this model for its dependable operation and flexible installation capability.
This Omron retroreflective photoelectric sensor maintains stable detection performance in environments exposed to dust, vibration, and varying ambient light conditions. The red LED sensing method combined with reflector-based operation allows reliable signal response across repetitive industrial processes. Its compact body and pre-wired 2 m cable simplify integration into machine layouts and control panels used in factory automation.
Within the E3JK sensing platform, the Omron reflective sensor structure supports long-term industrial operation with stable sensing characteristics and electrical compatibility. Applications using reflector sensor Omron configurations often depend on this model for object presence detection, positioning tasks, and conveyor monitoring systems. This relationship between model, sensing method, and industrial application makes the E3JK-RR12 2M a practical choice for automation environments requiring dependable photoelectric sensing performance.
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