Omron Inductive proximity Fibre‑optic Photoelectric Sensor E3X-MDA11

Omron E2E / E3X / E2A / E3FA Series – Product Descriptions

The following sections detail the product positioning, key features, and technical specifications of these four main sensor series from Omron.

1. E2E Series – Standard Inductive Proximity Sensors

The E2E series is Omron’s most representative inductive proximity sensor line, often regarded as “the first choice for proximity sensors,” known for world‑class performance and quality. It operates by generating an alternating magnetic field that induces eddy currents on the surface of metallic objects, thereby detecting their approach.

Key Features

• Extensive product range – covers DC 2‑wire / 3‑wire, AC 2‑wire, etc.; available in diameters from Φ3, Φ4, Φ5.4, M5, M8, up to M30, with over 100 models in total.

• Shielded / unshielded versions – shielded (flush mounting) and unshielded (non‑flush mounting) types meet different installation needs.

• Flexible output configurations – NPN / PNP outputs; NO / NC operation modes selectable.

• Detection targets – primarily ferrous metals (black metals); sensitivity to non‑ferrous metals is reduced.

• Superior environmental resistance – oil‑resistant PVC cables and cutting‑oil‑resistant sensing faces.

New Generation: E2E NEXT Series

The conventional DC two‑wire / three‑wire products of the traditional E2E standard type have been gradually replaced by the E2E NEXT series. With its “Thermal Distance Control” technology and analogue‑digital hybrid IC, the E2E NEXT achieves about twice the detection distance of previous models, effectively solving temperature‑induced variations and individual sensor differences. For instance, an M12 model offers a detection distance of 7 mm, comparable to previous M18 sensors. It also supports IO‑Link communication.

Typical Applications

• Position detection and limit control in machinery

• Counting signal pickup

• Workpiece detection in automated assembly lines

Technical Specifications (example: E2E‑X5Y2)

2. E3X Series – Digital Fibre‑Optic Sensors

The E3X series is Omron’s digital fibre‑optic sensor (fibre amplifier) product line, used together with the E32 series fibre units to achieve separated amplifier‑and‑sensor‑head installation.

Main Sub‑Series

2.1 E3X‑DA‑S Series – High‑Function Digital Fibre Sensors

• High‑functionality for stable detection – equipped with APC (Auto Power Control) to achieve highly stable light emission, with an APC lifetime of approximately 20 years.

• GIGARAY technology – delivers the highest power level in its class, enabling stable detection of low‑reflectivity and large objects.

• Power Tuning function – allows easy optimisation of the light intensity.

• High‑speed response – ultra‑high‑speed mode achieves a response time of 80 μs.

• Multiple models – available in general‑purpose, extended APC‑life, and high‑speed versions; NPN / PNP outputs; cable or connector types.

• Communication unit support – E3X‑DA0‑S models are available for EtherCAT and CompoNet communication units.

2.2 E3X‑ZV Series – Smart Fibre Amplifiers

• Equipped with S‑tune (Smart Tuning) – one‑touch optimal setting.

• High dynamic range (7 times that of the E3X‑HD) – stable detection from black to glossy objects.

2.3 E3X‑ZD Series – Easy‑Operation Type

• Independent teaching button – two clicks complete both teaching and sensitivity adjustment.

Typical Applications

• Micro‑object detection in semiconductor and electronic component manufacturing

• Transparent object detection in packaging

• High‑speed position control and multi‑level discrimination

3. E2A Series – Long‑Distance Cylindrical Proximity Sensors

The E2A series is Omron’s long‑distance cylindrical inductive proximity sensor line, characterised by its stainless steel housing and extended sensing range.

Key Features

• Long sensing distance – 1.5 to 2 times that of standard models, reducing the risk of workpiece collisions.

• Rugged stainless steel housing – reliable operation in harsh conditions.

• Wide temperature range – effective from –40 °C to +70 °C.

• High protection rating – supports IP67 (some models up to IP69K).

• Multiple sizes – available in M8, M12, M18, M30 thread sizes; shielded / unshielded options.

Important Note

Some models in the E2A series were discontinued for new orders in March 2022. The replacement is the E2E NEXT series. Currently available units are mainly stock or limited specific models.

Technical Specifications (example: E2A‑S08KN04‑M5‑C1)

4. E3FA Series – New‑Generation Cylindrical Photoelectric Sensors

The E3FA series is Omron’s new‑generation M18 cylindrical photoelectric sensor, fully covering the previous E3F3 and E3F2 series. The same family also includes the E3RA (right‑angle type), E3FB, and E3RB variants.

Key Features

• Easy installation and intuitive setting – large, sturdy adjustment knobs make calibration convenient for installers.

• Bright high‑power red LED – clearly visible even at long distances, facilitating optical alignment.

• LED status indicator – with long visibility distance and wide viewing angle.

• Rugged housing – designed for continuous machine operation, robust and waterproof, resistant to high‑pressure washing.

• High EMC immunity and light immunity – exceeding market standards.

• High protection rating – IP67 (some versions up to IP69K).

Comprehensive Sensing Modes

• Connection – cable (2 m) or M12 connector types available.

• Output – NPN / PNP selectable.

Typical Applications

• Food & beverage, textile, ceramic & tile production, logistics, etc.

• Hygienic environments requiring high‑pressure washing

• Applications needing background suppression or transparent object detection

Summary Comparison