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Omron E39-R1S Reflector for Retro-Reflective Photoelectric Sensors — front view

Omron E39-R1S Reflector for Retro-Reflective Photoelectric Sensors

SKU: E39-R1S

USD 3.50

Omron E39-R1S is a retro-reflective reflector for use with retro-reflective photoelectric sensors.

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Product Overview

E39-R1S is an Omron reflector accessory in E39 family, intended for use with compatible retroreflective photoelectric sensors. Reflector selection significantly affects detection stability, particularly in environments with target variation, vibration, or challenging background conditions. This model is commonly used in conveyors, packaging machines, and part transfer stations where predictable optical return is necessary for reliable sensor switching. During implementation, teams should evaluate mounting angle, reflector cleanliness, distance, and vibration robustness to prevent intermittent detection faults. It is also important to validate compatibility with the selected sensor model and required sensing distance. E39-R1S is generally chosen when integrators need a standardized reflector component that supports repeatable commissioning and easier maintenance across machine fleets.

Key Features

  • E39 optical reflector accessory from Omron
  • Supports retroreflective sensor detection path stability
  • Useful for conveyor and packaging line sensor installations
  • Helps improve repeatable optical return in variable environments
  • Compact accessory for machine frame and bracket mounting
  • Supports standardized spare strategy for sensor systems
  • SKU: E39-R1S
  • Series: E39

Best-Fit Applications

  • Retroreflective object detection on conveyors
  • Packaging station sensor setups with reflector target
  • Transfer point detection in assembly modules
  • Sensor retrofit maintenance where reflector is worn or missing
  • Machine commissioning requiring controlled reflective reference
  • Standardized sensor accessory stocking across plants

Buying Checklist

  • Confirm reflector compatibility with chosen sensor series and distance.
  • Validate mounting angle and bracket rigidity in operating conditions.
  • Keep reflector surface clean to avoid missed detections over time.
  • Check environment for dust, oil mist, or impact exposure risk.
  • Maintain spare reflector inventory for critical sensor stations.

Technical Specifications

Model E39-R1S
Series E39
Type Retro-Reflective Reflector
Size 40 x 40mm
Material Acrylic with reflective coating
Mounting Adhesive backing or screw mount
Operating Temperature -25 to +70°C
Compatible Sensors Retro-reflective photoelectric sensors

FAQ for E39-R1S

What's the sensing distance with this reflector?
Depends on sensor model. Typical: E3Z-R: up to 4m, E3FA-R: up to 3m, E3T-R: up to 1m. Larger reflectors (E39-R4) provide longer range.
How do I mount this reflector?
Two options: 1) Adhesive backing (clean surface, peel and stick), 2) Screw mount through center hole (M3 screw). For permanent installation, screw mount is more secure.
Can I use this reflector outdoors?
Yes, but protect from direct sunlight and moisture. UV exposure degrades reflective coating over time. Consider protective housing for outdoor installations.
How do I clean the reflector?
Use soft cloth with mild soap solution. Don't use abrasive cleaners or solvents. Scratches reduce reflectivity. Replace if heavily scratched or yellowed.

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