Omron E39-R1S Reflector: Technical Guide and Application Manual

The Omron E39-R1S is a Reflector developed for engineers who understand that the cost of an unplanned stop far exceeds the cost of a quality sensor. Operating voltage Passive, it addresses real challenges in photoelectric sensor applications.

Many engineers working with this product also specify other Omron Omron Sensor models on the same project. The shared ecosystem means cable standards and mounting accessories are compatible.

Understanding the Omron E39-R1S Reflector

The Omron E39-R1S is a Reflector rated at Passive designed to reliably handle photoelectric sensor applications applications. Key engineering features include reflector for retro-reflective sensors, high reflection, ip67.

Technically, the Omron E39-R1S delivers reflector for retro-reflective sensors, high reflection, ip67. Passive voltage rating simplifies system integration.

Core Specifications

The table below summarises the main technical parameters of the Omron E39-R1S. For complete specifications, refer to the official Omron product datasheet.

ParameterValue
Product TypeReflector
Operating VoltagePassive
Output TypePassive
Key FeaturesReflector for retro-reflective sensors, high reflection, IP67
MountingScrew mount
LifetimeOptical
Operating Temperature-25°C to +70°C
Compatible AccessoryE3S/E3Z sensors

Application Scenarios

The Omron E39-R1S Reflector is commonly specified for the following applications:

  • Photoelectric sensor applications
  • Long-range detection
  • Industrial automation

Across these use cases, the consistent requirement is reliable detection — often in environments where an unplanned fault would create significant disruption. The Omron E39-R1S is designed with exactly those conditions in mind.

Getting It Right at Installation

A few installation details make a tangible difference with the Omron E39-R1S Reflector. Mount the sensor at a location free from vibration. Keep the cable route away from sharp edges. Adjust the target distance to operate at 80% of the nominal sensing 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 E39-R1S Reflector 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 E39-R1S?

Mount the Omron E39-R1S Reflector using a mounting bracket to a stable surface, make cable connections, and adjust the target distance.

What is the service life of the Omron E39-R1S?

As the Omron E39-R1S Reflector uses semiconductor technology with no moving mechanical parts, it has a very long service life.

Is the Omron E39-R1S sensitive to inductive loads?

The Omron E39-R1S Reflector includes short-circuit and overcurrent protection in its output circuit.

Is the Omron E39-R1S RoHS compliant?

Omron products conform to RoHS Directive requirements. Specific compliance documentation can be requested from authorised distributors.

What periodic maintenance does the Omron E39-R1S require?

Keep the sensor lens clean, check cable connections, and ensure the mounting screw is tight.