Maintenance teams planning replacements for E3Z-LL81-2M frequently review Omron Photoelectric Sensor, E3Z D61 2M and Omron Sensors to prevent downtime, checking availability and compatibility with existing systems.
Omron E3Z-LL81 2M Photoelectric Sensor
The Omron E3Z-LL81 2M Photoelectric Sensor offers Distance-settable (BGS Models), 20 to 40 mm 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-LL81 2M |
Omron E3Z-LL81 2M Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Distance-settable (BGS Models) |
| Sensing Distance | 20 to 40 mm |
| 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 | Five-turn endless 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), Modified polyarylate resin |
| Weight | Approx. 120 g |
Omron is globally recognized for delivering intelligent automation solutions, especially in sensor technology. With decades of innovation and strict quality standards, Omron sensors are trusted by engineers across industries for minimizing errors and enhancing line efficiency. The Omron E3Z-LL81 2M belongs to a premium class of laser-based sensors that combine compact design with exceptional detection accuracy. Built with a red laser diode (655 nm) conforming to JIS, IEC, and FDA Class 1 safety norms, this sensor supports distance-settable detection, making it suitable for both transparent and dark surfaces where precision is critical.
The Omron E3Z-LL81 2M sensor features a five-turn endless adjuster for fine sensitivity tuning and offers a wide detection range from 20 mm to 300 mm on white targets. For black or low-reflective materials, it ensures stable detection up to 160 mm. With a fast 1 ms response time and PNP open collector output, the sensor seamlessly integrates with industrial PLCs and automation controllers. A durable PBT and polyarylate housing ensures long-lasting performance in dusty or humid environments, while protection features like reverse polarity, output short-circuit, and mutual interference prevention enhance reliability in harsh conditions.
Designed for use in applications such as label detection, small part counting, or bottle presence confirmation, the E3Z-LL81 2M excels in tight spaces and fast-motion lines. Its visible laser and status indicators improve setup and diagnostics, while its rugged construction supports demanding OEM and machine-builder requirements. The sensor is ideal for industries like food and beverage, electronics, and automotive.
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