Omron E3Z-LR66 Photoelectric Sensor
The Omron E3Z-LR66 Photoelectric Sensor offers Retro-reflective with MSR function, When using the E39-R12: 0.2 to 7 m Sensing distance, NPN Output, Connector (M8, 4 pins), Red LD (655 nm), Laser Class 1, 12 to 24 VDC Power supply voltage, Light-ON/Dark-ON mode. Manufactured by Omron under the Omron Photoelectric Sensors category, this model belongs to the Omron E3Z Series.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-LR66 |
Omron E3Z-LR66 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective with MSR function |
| Sensing Distance | When using the E39-R12: 0.2 to 7 m |
| Standard Sensing Object | Opaque: 75-mm dia. min. |
| Light Source | Red LD (655 nm), Laser Class 1 |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Connector (M8, 4 pins) |
| Current Consumption | 30 mA max. |
| Control Output | Load power supply voltage: 26.4 VDC max., Load current: 100 mA max., Open collector output |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Indicators | Operation indicator (orange), Stability indicator (green) |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −10 to 55°C, Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (with no icing or 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 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500 m/s2 3 times each in X, Y, and Z directions |
| Protection Circuits | Reversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention, and Reversed output polarity protection |
| Degree Of Protection | IP67 (IEC 60529) |
| Material | PBT (polybutylene terephthalate), Methacrylic resin |
| Weight | Approx. 30 g |
The Omron E3Z-LR66 Photoelectric Sensor features retro-reflective sensing combined with an advanced MSR function (Mirror Surface Rejection), allowing for accurate object detection up to 7 meters even in complex reflective conditions. With a powerful Class 1 red laser (655 nm), it achieves precise sensing with high repeatability, making it suitable for packaging lines, conveyors, and high-speed detection tasks.
Built with industrial-grade durability, this laser photoelectric sensor has an IP67 protection rating, supports 12–24 VDC operation, and includes robust circuit protections such as reverse polarity and short-circuit prevention. The NPN open-collector output and M8 connector simplify wiring, while the one-turn sensitivity adjuster and dual LED indicators (orange and green) allow for intuitive setup and monitoring.
With a quick 1 ms response time, high environmental resistance, and ability to detect opaque objects as small as 75 mm in diameter, the E3Z-LR66 delivers consistent performance across demanding applications.
