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Omron E3S-AT66 Photoelectric Sensor
The Omron E3S-AT66 Photoelectric Sensor is a medium sensor with built-in amplifier featuring through-beam, vertical design and a 7 m sensing distance for precise object detection. It offers NPN output with a secure M12 connector and operates on 10β30 VDC including a 10% ripple range. This model is part of the Omron automation lineup, categorized under Omron Photoelectric Sensors, and developed within the Omron E3S Series. It features a red LED (660 nm) light source, Light-ON/Dark-ON selectable mode, 0.5 ms response time, IP67 protection, and low 20 mA current consumption for reliable emitter and receiver performance.
| Brand | Omron |
| Product Type | Photoelectric Sensor |
| Model Number | E3S-AT66 |
Omron E3S-AT66 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam Sensors |
| Sensing Distance | 7 m |
| Standard Sensing Object | Opaque: 10-mm dia. min. |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 10 to 30 VDC, including ripple (p-p) 10% |
| Output configuration | NPN |
| Connection Method | Connector (M12) |
| Current Consumption | Both Emitter and Receiver: 20 mA max. (plus approx. 15 mA with turbo function) |
| Control Output | Load power supply voltage: 30 VDC max., Load current: 100 mA max. (residual voltage: 1 V max.) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | Operation or reset: 0.5 ms max. |
| Sensitivity Adjustment | Two-turn endless adjuster with an indicator |
| Ambient Illumination | Incandescent lamp: 5,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: β25Β°C to 55Β°C (with no icing or condensation) Storage: β40Β°C to 70Β°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% (with no condensation) Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΞ© min. at 500 VDC between current-carrying parts and case |
| Dielectric Strength | 1,000 VAC, 50/60 Hz for 1 min. between current-carrying parts and case |
| Vibration Resistance | 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500m/s2, 3 times each in X, Y, and Z directions |
| Protection Circuits | Power supply reverse polarity protection, Output short-circuit protection |
| Degree of Protection | IEC IP67; NEMA: 4X (indoors only) |
| Material | PBT, Denatured polyallylate, Stainless steel (SUS304) |
| Weight | Approx. 70 g |
The Omron E3S-AT66 features a precise through-beam sensing method with a robust 7-meter sensing distance, ideal for detecting opaque objects down to 10 mm in diameter. With a Red LED (660 nm) as the light source and a fast 0.5 ms response time, it delivers stable detection across high-speed automation lines. Operating within a 10 to 30 VDC power range, this sensor is equipped with NPN output and supports Light-ON/Dark-ON selectable operation for adaptable integration.
The sensor maintains energy efficiency with just 20 mA of current consumption per emitter and receiver, and an optional turbo mode for enhanced signal strength. Installation is streamlined via a durable M12 connector, while the two-turn endless sensitivity adjuster provides easy fine-tuning for varying target conditions. Built to endure industrial demands, the housing is crafted from PBT, denatured polyallylate, and stainless steel (SUS304), offering resistance to vibration, shock, and temperature extremes.
With an ingress protection rating of IP67 and compliance with NEMA 4X (indoor only), the E3S-AT66 Photoelectric Sensor stands up to moisture, dust, and mechanical stress. Safety is further reinforced with reverse polarity protection and output short-circuit protection.
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