Omron E3S-AT86 Through-Beam Photoelectric Sensor: Technical Guide and Application Manual
Not every datasheet reflects true product performance. The Omron E3S-AT86 Through-Beam Photoelectric Sensor looks straightforward on paper — 12-24V DC, standard mount — but its real value shows up after six months in demanding environments like through-beam detection.
For projects where sensing and control decisions must be made together, Omron’s Omron Sensor products are a natural companion to this unit. Both families are built to the same quality standards.
Understanding the Omron E3S-AT86 Through-Beam Photoelectric Sensor
The Omron E3S-AT86 is a Through-Beam Photoelectric Sensor rated at 12-24V DC designed to reliably handle through-beam detection applications. Key engineering features include separate transmitter-receiver, sensing distance 10 m, high precision, ip67.
Technically, the Omron E3S-AT86 delivers separate transmitter-receiver, sensing distance 10 m, high precision, ip67. 12-24V DC voltage rating simplifies system integration.
Core Specifications
The table below summarises the main technical parameters of the Omron E3S-AT86. For complete specifications, refer to the official Omron product datasheet.
| Parameter | Value |
|---|---|
| Product Type | Through-Beam Photoelectric Sensor |
| Operating Voltage | 12-24V DC |
| Output Type | NPN/PNP |
| Output Current | 100 mA |
| Key Features | Separate transmitter-receiver, sensing distance 10 m, high precision, IP67 |
| Mounting | Screw mount |
| Lifetime | Semiconductor |
| Operating Temperature | -25°C to +55°C |
| Compatible Accessory | Mounting bracket, cable extension |
Application Scenarios
The Omron E3S-AT86 Through-Beam Photoelectric Sensor is commonly specified for the following applications:
- Through-beam detection
- High-precision counting
- Conveyor monitoring
Across these use cases, the consistent requirement is reliable detection — often in environments where an unplanned fault would create significant disruption. The Omron E3S-AT86 is designed with exactly those conditions in mind.
Getting It Right at Installation
When mounting the Omron E3S-AT86 Through-Beam Photoelectric Sensor in a system, pay attention to three things: the mounting location must be vibration-free; cable tension must not be excessive; target distance must stay within the nominal range.
For ongoing maintenance, keep the sensor lens clean, check cable connections, and periodically test that the LED indicator functions correctly. Early intervention avoids the much larger cost of an unplanned production stop.
Why Engineers Choose Omron
Specifying the Omron E3S-AT86 Through-Beam Photoelectric Sensor also means specifying into an ecosystem. Omron’s portfolio covers sensors, relays, PLCs, power supplies, and more — all engineered to work together.
Frequently Asked Questions
How do I install the Omron E3S-AT86?
Mount the Omron E3S-AT86 Through-Beam Photoelectric Sensor using a mounting bracket to a stable surface, make cable connections, and adjust the target distance.
What is the service life of the Omron E3S-AT86?
As the Omron E3S-AT86 Through-Beam Photoelectric Sensor uses semiconductor technology with no moving mechanical parts, it has a very long service life.
Is the Omron E3S-AT86 sensitive to inductive loads?
The Omron E3S-AT86 Through-Beam Photoelectric Sensor includes short-circuit and overcurrent protection in its output circuit.
Is the Omron E3S-AT86 RoHS compliant?
Omron products conform to RoHS Directive requirements. Specific compliance documentation can be requested from authorised distributors.
What periodic maintenance does the Omron E3S-AT86 require?
Keep the sensor lens clean, check cable connections, and ensure the mounting screw is tight.

