Omron E3JK-RR12 2M Photoelectric Sensor
The Omron E3JK-RR12 2M Photoelectric Sensor features retro-reflective with MSR function, relay output, and a 100 mm to 10 m range using the E39-R2 reflector. It operates on a selectable AC/DC power supply and is part of the Omron industrial automation lineup under the Omron Photoelectric Sensors category and the Omron E3JK Series. Designed for high reliability, it uses a red LED light source and includes a durable 2 m pre-wired cable for stable performance in industrial environments.
| Brand | Omron |
| Product | Photoelectric Sensor |
| 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 Photoelectric Sensor is part of the Omron E3JK Series designed for reliable sensing in industrial automation. It uses a retro-reflective sensing method with a range of up to 6 meters when used with the E39-R1 reflector. The unit supports a 24 to 240 VAC/DC voltage range and delivers a relay output suitable for both AC and DC operations. With an IP64 protection rating and a robust ABS housing, it performs well in harsh industrial conditions such as factories and process control lines.
This model is part of a versatile family of photoelectric sensors widely used across automation industries. The E3JK Series sensors are known for long sensing distance, stable operation under high ambient light, and easy installation. The E3JK-RR12 2M model offers selectable Light ON and Dark ON modes, allowing flexibility for different machine configurations. Its 20 ms response time ensures quick signal transmission for precise detection in conveyor and packaging systems.
In practical applications, the Omron E3JK-RR12 2M Photoelectric Sensor is used in packaging lines, material handling, and automated sorting systems. It helps detect product presence, position, or movement with consistent accuracy. Manufacturers use it on conveyor belts, bottle filling stations, and assembly machines to maintain process control and avoid mechanical contact. The integrated mutual interference prevention function allows multiple sensors to operate side by side without false triggering.
The Omron E3JK-RR12 2M Photoelectric Sensor is a retro-reflective type sensor with MSR function, offering a sensing range from 100 mm to 6 m when using the E39-R1 reflector, and up to 10 m with the E39-R2. It operates on a selectable AC/DC power supply and provides a relay output with a pre-wired 2 m cable for versatile installation. For applications requiring similar performance without the MSR function, the Omron E3JK-RR11 2M Photoelectric Sensor offers an extended sensing range up to 11 m. Users preferring a model supplied with a mounting bracket and reflector can choose the Omron E3JK-RR12-C 2M Photoelectric Sensor. Alternatively, for setups needing an infrared LED light source instead of red, the Omron E3JK-RR13 2M Photoelectric Sensor provides reliable retro-reflective detection up to 11 m. The Omron E3JK-RR12 2M ensures dependable detection for reflective sensing applications across diverse industrial environments.
The wide operating temperature range of −25 °C to 55 °C and the ability to handle both AC and DC supply make this sensor ideal for industrial environments with varying power systems. Its one-turn sensitivity adjuster simplifies on-site calibration. With its durable design and long service life, it contributes to reduced downtime and improved equipment reliability in automated setups.
In summary, the Omron E3JK-RR12 2M Photoelectric Sensor from the E3JK Series is a dependable sensing solution for automation systems requiring accurate and stable object detection. With a 6 m range, 24–240 VAC/DC input, relay output, and IP64 protection, it ensures consistent performance in demanding industrial environments. This model strengthens Omron’s reputation as a reliable brand for photoelectric sensors used across India’s automation and manufacturing sectors.
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