Name: Omron E3Z-LR61 2M Compact Laser Photoelectric Sensor - INOSAKI
SKU: Omron-E3Z-LR61 2M
Price: 94.32 USD
Availability: InStock

Technical Overview

The Omron E3Z-LR61 2M is a compact, retro-reflective laser photoelectric sensor equipped with a built-in amplifier. Emitting a Class 1 red laser at 655 nm, it delivers high-precision object detection over distances ranging from 200 mm up to 15 meters when paired with an appropriate reflector. Designed in a standard cuboid form factor made of durable PBT polymer, it fits seamlessly into existing automation infrastructure. Engineered for challenging industrial environments with an IP67 rating, this sensor incorporates an M.S.R. (Mirror Surface Rejection) function, enabling the stable detection of highly reflective or glossy objects. It features an NPN output, selectable Light-ON/Dark-ON operation modes, a rapid 1 ms response time, and is supplied pre-wired with a 2-meter cable.

Key Features

Long-range retro-reflective sensing capability up to 15 meters (with E39-R1 Reflector).
Class 1 visible red laser (655nm) for safe, long-distance target alignment and a tight 5 mm spot size.
Built-in M.S.R. (Mirror Surface Rejection) function prevents false triggering from shiny or glossy targets.
Selectable Light-ON or Dark-ON operation modes for integration flexibility.
Highly durable PBT rectangular housing rated to IP67 for superior dust and water resistance.
Rapid 1 ms maximum response time for high-speed automated lines.
Pre-wired with a 2-meter connection cable for robust, direct wiring.

Technical Specification Matrix

Parameter	Value
Sensor Type	Laser Photoelectric Sensor (Retro-reflective)
Light Source	Red Laser Diode (655 nm), Class 1
Output Type	NPN (1x Digital, 26.4 VDC max, 100 mA max)
Sensing Distance	200 mm to 15 m (with E39-R1 Reflector)
Supply Voltage	12 to 24 VDC ±10% (10% ripple max)
Current Consumption	30 mA max.
Response Time	1 ms max. (Operate or reset)
Operation Mode	Light-ON / Dark-ON (Selectable)
Connection Method	Pre-wired, 2m Cable
Degree of Protection	IP67
Ambient Temperature	-10°C to +55°C
Housing Material	Thermoplastic P.B.T.
Dimensions (W x H x D)	10.8 mm x 31 mm x 20 mm
Spot Size	5 mm
Special Features	M.S.R. (Mirror Surface Rejection) function

Industrial Applications

1. Long-Range Pallet and Tote Tracking in AS/RS

Automated Storage and Retrieval Systems (AS/RS) require robust optical sensing over extended distances to track pallets or totes crossing conveyors and deep storage racks. The sensor perfectly tracks items across wide aisles by shooting a focused beam over long spans.

Problem Solved

Eliminates the need to install multiple short-range sensors across wide conveyor junctions, significantly reducing wiring complexity and potential failure points.

Retro-reflective15m sensing distanceClass 1 Laser1 ms response time

2. Stable Detection of Glossy Packaged Goods

High-speed packaging lines often handle items wrapped in glossy plastics or metallic foils, which can spoof standard diffuse or standard retro-reflective sensors into missing a count. This sensor relies on its polarizing filter mechanics to strictly receive light bounced back from the dedicated reflector.

Problem Solved

Prevents false triggers, double-counts, and missed detections caused by the mirror-like reflections bouncing off product packaging.

M.S.R. functionMirror Surface RejectionRed Laser 655nmNPN output

3. Precision Component Positioning in Automotive Assembly Cells

Detecting the precise presence and orientation of intricate automotive chassis components requires a remarkably tight beam spot. The sensor ensures reliable trigger alignment for robotic handling equipment without experiencing interference from the surrounding metal fixtures.

Problem Solved

Guarantees exact alignment verification with a narrow optical beam while enduring harsh, oily, and dusty environments typical in automotive manufacturing.

5 mm spot sizeIP67PBT polymer housingBuilt-in amplifier