Omron E3Z-LT81 | Omron | E3Z-Series Laser Photoelectric Sensor

Description

The E3Z-LT81 is a high-performance through-beam photoelectric sensor from the E3Z series, designed for long-distance detection and precision sensing in industrial automation. This sensor utilizes a red laser diode (655 nm) to provide a clear, focused spot, achieving a sensing distance of up to 60 meters. Classified as a JIS Class 1 / IEC Class 1 / FDA Class 2 laser product, it balances high-intensity detection with safety standards. The unit features an open collector PNP output and is designed for reliable operation within a 12 to 24 VDC power supply range. Its compact construction makes it suitable for integration into automated production lines requiring non-contact position or object detection over significant spans.

Features

• Sensing Method: Through-beam (Emitter and Receiver pair)
• High Precision: 60 m sensing distance with a 5-mm spot diameter at 3 m
• Laser Light Source: Red LD (655 nm) for high-visibility targeting
• Output Configuration: Open collector PNP output
• Compact Design: Optimized for tight industrial installation spaces
• Safety Compliance: Class 1 laser (JIS/IEC) / Class 2 laser (FDA)

Applications

• Long-distance presence detection on conveyor systems
• Automated material handling and pallet positioning
• Large-scale warehouse object tracking
• Precision alignment tasks in assembly machinery

Technical Specifications

Installation Guidelines

• Alignment: Proper alignment of the emitter and receiver is critical for through-beam sensors. Ensure they are mounted securely and aimed directly at each other to maximize signal stability over the 60 m range.
• Wiring: Use shielded cable to minimize electrical noise interference, especially when the sensor cabling is routed near motor power lines or high-frequency drives.
• Cleaning: Keep the laser aperture and receiver lens free of dust, oil, and moisture to ensure consistent sensing performance. Periodically wipe with a soft, non-abrasive cloth.
• Safety: Adhere to all local regulations regarding the use of laser devices. Although the sensor is Class 1/Class 2 compliant, do not stare directly into the laser beam.