SKU: E3Z-T81

Omron E3Z-T81 Through-Beam Photoelectric Sensor 15m NPN M8 Connector

Omron E3Z-T81 is a through-beam photoelectric sensor with 15m sensing range, NPN output, M8 connector for reliable long-distance object detection.

USD 18.00 per unit, volume discounts available

  • In stock, ships in 24h
  • 100% genuine Omron
  • 1-year manufacturer warranty
  • Worldwide delivery

Key Features

  • Through-beam detection principle
  • 5 meter sensing distance
  • PNP normally-open output
  • 12-24VDC operating voltage
  • M18 cylindrical housing
  • IP67 protection rating
  • Visible red LED light source
  • Sensitivity adjustment potentiometer
01 / Overview

Omron E3Z-T81 Through-Beam Photoelectric Sensor

The Omron E3Z-T81 is a compact through-beam photoelectric sensor from the E3Z series, designed for reliable object detection in industrial automation applications. This sensor features a through-beam configuration with separate emitter and receiver units, providing a sensing distance of up to 5 meters for long-range detection applications. The through-beam design offers the highest detection reliability among photoelectric sensor types, as the light beam travels directly from emitter to receiver without reflection, making it ideal for detecting opaque objects in dirty or dusty environments where other sensing methods may fail. The E3Z-T81 features PNP normally-open output configuration, compatible with most modern PLC input cards and safety circuits. The sensor operates on 12-24VDC supply voltage, providing flexibility in various control system configurations. The compact M18 cylindrical housing allows easy installation in tight spaces and standard mounting brackets. The sensor includes a sensitivity adjustment potentiometer, enabling fine-tuning for optimal detection performance in varying ambient light conditions or with different object surfaces. The visible red LED light source simplifies alignment during installation, allowing quick and accurate sensor positioning. The E3Z series is known for its robust construction with IP67 protection rating, ensuring reliable operation in harsh industrial environments with exposure to dust, water, and oil. Applications include conveyor systems, packaging machinery, material handling equipment, and any application requiring reliable presence detection over longer distances.

Typical Applications

  • Conveyor object detection
  • Packaging machinery
  • Material handling systems
  • Parts counting applications
  • Door and gate safety
  • Level detection in hoppers
  • Web break detection
  • Assembly line automation

Buying Checklist

  • High reliability through-beam detection
  • Long 5m sensing distance
  • Robust IP67 construction
  • Easy alignment with visible LED
  • Compact M18 housing
  • Wide operating voltage range
  • Proven Omron sensor quality
  • Cost-effective solution
02 / Specifications

Technical Specifications

Technical specifications for Omron E3Z-T81 Through-Beam Photoelectric Sensor 15m NPN M8 Connector
ModelE3Z-T81
SeriesE3Z
TypeThrough-Beam
Sensing Range0.1-15m
Output TypeNPN Open Collector
Supply VoltageDC12-24V
ConnectionM8 connector
ProtectionIP67
Response Time1ms
Light SourceRed LED
Operating Temperature-25 to +55°C
03 / FAQ

Frequently Asked Questions

What is the sensing range?

Up to 15m for through-beam detection.

Connector type?

M8 4-pin connector.

Output type?

NPN open collector.

Emitter and receiver sold separately?

Yes, purchase emitter and receiver separately.

Need E3Z-T81 pricing or lead time?

Email sales@hyx-automation.com or send your inquiry via the form. We respond same business day.

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