Name: Omron E3Z-LL61 2M Compact Laser Photoelectric Sensor - INOSAKI
Price: 111.11 USD
Availability: InStock

Technical Overview

The Omron E3Z-LL61 2M is a high-precision, distance-settable compact laser photoelectric sensor featuring advanced Background Suppression (BGS) technology. It utilizes a Class 1 red laser diode (655 nm) to deliver a pinpoint 0.5 mm spot, enabling the reliable detection of minute objects up to 300 mm away without being affected by background colors or reflective surfaces. Encapsulated in a robust PBT rectangular housing with an IP67 rating, it provides a rapid 1 ms response time, making it an ideal sensing solution for fast-paced industrial automation and precise robotic positioning.

Key Features

Distance-settableBackgroundSuppression(BGS)ensuresstabledetectionindependentoftargetcolororbackground[1.2]
Class 1 red laser diode (655 nm) provides pinpoint 0.5 mm spot precision for minute object detection
Adjustable sensing range from 20 mm to 300 mm for flexible machine integration
Rapid 1 ms response time suitable for high-speed automated packaging and robotic applications
IP67-rated PBT housing withstands harsh industrial environments (-10 to +55°C operating range)
Selectable Light-ON/Dark-ON operation mode with an NPN open-collector output
Pre-wired configuration with a highly durable 2-meter connection cable

Technical Specification Matrix

Parameter	Value
Sensing Method	Distance-settable Background Suppression (BGS)
Sensing Range	20 to 300 mm (Adjustable)
Spot Diameter	0.5 mm at 300 mm (Reference)
Light Source	Red Laser Diode (655 nm), Class 1
Output Type	NPN Open Collector (26.4 VDC max, 100 mA max)
Operation Mode	Light-ON / Dark-ON selectable
Response Time	1 ms max.
Supply Voltage	12 to 24 VDC ±10%
Current Consumption	30 mA max.
Degree of Protection	IP67
Ambient Operating Temperature	-10 to +55 °C
Housing Material	Polybutylene Terephthalate (PBT)
Connection Method	Pre-wired, 2m cable

Industrial Applications

1. High-SpeedBottleCapPresenceandAlignmentDetection

Integratedintohigh-throughputbottlingconveyors, thesensorpreciselymonitorsthepresenceandalignmentofcaps.Thebackgroundsuppressiontechnologyeasilyignoresthecontinuousmotionandvariedcolorsoftheconveyorbelt[1.2], while the 0.5 mm pinpoint laser spot reliably identifies slight cap misalignments or missing seals.

Problem Solved

Eliminates false readings caused by shiny, fluctuating machine backgrounds, ensuring unsealed bottles are rejected instantly without line slowdowns.

Background Suppression (BGS)0.5 mm Laser Spot1 ms Response TimeIP67 Protection

2. Verification of Micro-Component Placement on PCBs

Mounted above a printed circuit board (PCB) assembly line to verify the successful placement of extremely small surface-mount components before soldering. The Class 1 red laser operates safely near operators while utilizing a focused 0.5 mm spot to detect tiny components.

Problem Solved

Prevents missing components on dense circuit boards without the need for complicated or expensive machine vision systems, ultimately reducing manufacturing defect rates.

Class 1 Red LaserMinute Object DetectionNPN OutputAdjustable Range 20-300mm

3. Narrow Gap Target Detection in Automated Storage Systems (ASRS)

Installed on the retrieving robot arms of ASRS systems, the sensor effectively scans for parts passing through constrained mechanical gaps. The sensor's 300 mm background suppression range senses target storage trays while actively ignoring the highly reflective structural metal framing situated directly behind the designated pickup zone.

Problem Solved

Ensures reliable robotic actuation through constrained mechanical tolerances, avoiding false triggers caused by varying storage box colors or reflective framing.

Narrow Gap DetectionDistance-settable BGS12-24 VDC Control IntegrationPBT Housing