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Omron Photoelectric E3S Sensor

Omron Photoelectric E3S Sensor Programmable Logic Controller

The Omron E3S Series offers a wide range of compact photoelectric sensors designed for precise and reliable object detection in factory automation, packaging, and food processing environments. Known for their slim design, stable sensing, and robust construction, the E3S sensors are available in both plastic and stainless steel models for various application needs.

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Omron Photoelectric Sensor

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  • Compact Body for Tight Spaces – Slim rectangular shape ideal for confined machine areas – Easy mounting with universal brackets and standard hole spacing
  • Excellent Detection Performance – High sensing accuracy on dark, shiny, or transparent objects – Models include diffuse, retro-reflective, and through-beam types
  • Durable Housing Options – Plastic models for general use – Stainless steel models (E3S-C/E3S-DC) for food-grade and washdown environments
  • Water and Oil Resistance – IP67 and IP69K-rated options available for harsh industrial use – Models available with anti-condensation and chemical-resistant lenses
  • Multiple Outputs and Modes – NPN, PNP, and relay output types – Light-ON/Dark-ON selectable operation
Specification Description
Sensing method Through-beam Retro-reflective
Model E3S-2E4E3S-2E41 E3S-5E4E3S-5E41 E3S-R2E4E3S-R2E41
Sensing distance 2 m 5 m 0.1 to 2 m
Standard sensing object Opaque: 7-mm dia. min. Opaque: 11-mm dia. min. Opaque: 30-mm dia. min.
Differential travel ---
Directional angle Both emitter and receiver: 3° to 10° 3° to 10°
Light source (wavelength) Infrared LED (950 nm)
Power supply voltage 12 to 24 VDC±10%, ripple (p-p): 10% max.
Current consumption 50 mA max. (Emitter: 25 mA max., Receiver: 25 mA max.) 40 mA max.
Control output(solid-state output) Output current: 1.5 to 4 mA, Load current: 80 mA max. (residual voltage: 2 V max.) Refer to Data Sheet.
Response time Operate or reset: 3 ms max. Operate or reset: 1 ms max.
Sensitivity adjustment With an indicator
Ambient illumination(Receiver side) * Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max.
Ambient temperature Operating: -25 to 55°C, Storage: -40 to 70°C (with no icing or condensation)
Ambient humidity Operating: 35% to 85%, Storage: 35% to 95% (with no condensation)
Insulation resistance 20 MΩ min. at 500 VDC
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min
Vibration resistance(destruction) 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance(destruction) 500 m/s2 3 times each in X, Y, and Z directions
Degree of protection IEC IP65 IEC IP67
Connection method Pre-wired cable (standard length: 2 m)
Indicators Light indicator (red), Stability indicator (green)
Material Case Polybutylene terephthalate Zinc die-cast
Lens * Polycarbonate
Mounting Bracket Iron
Function Specification
Sensing method Model Diffuse-reflective Convergent-reflective
E3S-DS10E4 / E3S-DS10E41 E3S-DS30E41 E3S-DS30E4S E3S-LS10XE4 E3S-LS20XE4
Sensing distance Standard 100 mm (white paper 50×50 mm) 300 mm (white paper 100×100) 30 to 100 mm (10×10 mm) 50 to 250 mm (50×75 mm)
Standard sensing object Transparent, opaque
Differential travel 20% max. of setting distance 1.5 mm max. at 30 mm 5% max. at 50–250 mm
10 mm max. at 100 mm
Directional angle ---
Light source (wavelength) Infrared LED (950 nm) Red LED (660 nm) Infrared LED (945 nm)
Power supply voltage 12 to 24 VDC ±10%, ripple (p-p): 10% max.
Current consumption 40 mA max.
Control output 1.5–4 mA; Load: 80 mA max (residual voltage: 2 V max). Refer to datasheet.
Response time Operate/reset: 1 ms max.
Sensitivity adjustment With an indicator
Ambient illumination (Receiver) Lamp: 3000 lx max; Sunlight: 10000 lx max
Ambient temperature Operating: -25 to 55°C; Storage: -40 to 70°C
Ambient humidity Operating: 35–85%; Storage: 35–95%
Insulation resistance 20 MΩ min at 500 VDC
Dielectric strength 1000 VAC, 50/60 Hz for 1 min
Vibration resistance 10–55 Hz, 1.5 mm double amplitude (2 hrs in X/Y/Z)
Shock resistance 500 m/s², 3 times in X/Y/Z
Degree of protection IEC IP65 IEC IP67
Connection method Pre-wired cable (2 m)
Indicators Red (Light), Green (Stability)
Material Case Polybutylene terephthalate Zinc die-cast
Lens Polycarbonate
Mounting Bracket Iron

General-purpose Sensors

Sensing method Appearance Sensing distance Operation mode Model
Convergent-reflective (narrow vision field) 1568_lu_1_3 30 to 100 mm (variable) Light-ON/Dark-ON (selectable) E3S-LS10XE4 2M
Convergent-reflective (wide vision field) 50 to 250 mm (variable) E3S-LS20XE4 2M
Through-beam 1568_lu_1_1 2 m E3S-2E4 * Emitter E3S-2LE4 * Receiver E3S-2DE4 *
5 m E3S-5E4 * Emitter E3S-5LE4 * Receiver E3S-5DE4 *
Retro-reflective 0.1 to 2 m E3S-R2E4 *
Diffuse-reflective 100 mm E3S-DS10E4 *
300 mm E3S-DS30E4 *
Through-beam 1568_lu_1_2 2 m E3S-2E41 * Emitter E3S-2LE41 * Receiver E3S-2DE41 *
5 m E3S-5E41 * Emitter E3S-5LE41 * Receiver E3S-5DE41 *
Retro-reflective 0.1 to 2 m E3S-R2E41 *
Diffuse-reflective 100 mm E3S-DS10E41 *
300 mm E3S-DS30E41 *
Catalog Name
Catalog Number[size]
Last Update
E3S Data Sheet ---[3372KB] Apr 06, 2023 E3S Data Sheet

Applications

  • Packaging line object presence detection
  • Conveyor systems in food and beverage plants
  • Bottle, box, or product counting
  • Harsh industrial or sanitary applications
  • Machines with limited mounting space

Why Choose

  • Compact size with high optical performance
  • Versatile mounting for integration in any machine type
  • Models available for hygienic, food-grade, or wet environments
  • Global standard with proven long-term reliability

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