Procurement teams shortlist E3Z-LR81-2M with Omron Photoelectric Sensor, E3Z D61 2M and Omron Sensors, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Omron E3Z-LR81 2M Photoelectric Sensor
The Omron E3Z-LR81 2M Photoelectric Sensor offers Retro-reflective with MSR function, When using the E39-R12: 0.2 to 7 m Sensing distance, PNP Output, Pre-wired 2 M cable, 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 Type | Photoelectric Sensor |
| Model Number | E3Z-LR81 2M |
Omron E3Z-LR81 2M Photoelectric Sensor β 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 | PNP |
| Connection Method | Pre-wired 2 M cable |
| 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: β10 to 55Β°C, Storage: β25 to 70Β°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 MΞ© 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. 120 g |
The Omron E3Z-LR81 2M Photoelectric Sensor delivers laser-accurate object detection with a sensing distance of 0.2 to 7 meters using a retro-reflective MSR system. Powered by a red Class 1 laser diode (655 nm), it reliably detects opaque objects as small as 75 mm in diameter, ensuring stable operation even in environments with shiny backgrounds or strong ambient light interference.
Built for harsh industrial applications, the sensor operates on a 12β24 VDC supply and supports PNP open-collector output. It integrates multiple protection circuits including reverse polarity, short-circuit, and interference prevention. The one-turn sensitivity adjuster allows quick calibration, and the dual LED indicators (operation and stability) enhance usability during installation and maintenance.
Encased in a rugged housing rated IP67, the E3Z-LR81 2M is resistant to dust, water, vibration, and shock, making it ideal for conveyors, sorting lines, and automated inspection systems. Its compact design, combined with high-speed 1 ms response time, makes it a trusted choice for space-limited control panels.
Related Products
