Product Description

​The Omron EE-SPW321-A is a compact through-beam photomicrosensor system comprising a separate emitter and amplifier, ideal for precise object detection in space-constrained applications. It offers a maximum sensing distance of 300 mm with a response time of 1 ms, ensuring swift and reliable operation. Operating within a supply voltage range of 12 to 24 VDC, the system features a Dark-ON mode with an NPN open collector output capable of handling load currents up to 100 mA. The amplifier's slim profile (50 mm × 7.5 mm × 12 mm) allows flexible mounting options, and the system is equipped with a 2-meter pre-wired cable for straightforward installation. ​

Technical Specifications

• Sensing Method: Through-beam type​
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• Sensing Distance: Up to 300 mm​
• Standard Sensing Object: Opaque object with a minimum diameter of 2 mm​
• Light Source: GaAs infrared LED (pulse lighting) with a peak wavelength of 940 nm​
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• Operation Mode: Dark-ON​
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• Supply Voltage: 12 to 24 VDC ±10% (ripple (p-p): 5% max.)​
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• Current Consumption: Average: 30 mA max.​
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• Control Output: NPN open collector output​
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• Load Voltage: 12 to 24 VDC​
• Load Current: 100 mA max.​
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• Residual Voltage: 1 V max. at 100 mA load current​
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• Response Time: Operate or reset: 1 ms max.​
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• Ambient Light Immunity: Incandescent lamp: 3,000 lx max.; Sunlight: 10,000 lx max.​
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• Operating Temperature: -20°C to 55°C​
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• Operating Humidity: 5% to 85% RH​
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• Vibration Resistance: Destruction: 10 to 55 Hz, 1.5 mm double amplitude each in X, Y, and Z directions for 2 hours​
• Shock Resistance: Destruction: 500 m/s²​
• Degree of Protection: IP64​
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• Connection Method: Pre-wired with a 2-meter cable​
• Dimensions: Emitter: 50 mm (L) × 7.5 mm (W) × 12 mm (H); Amplifier: 50 mm (L) × 7.5 mm (W) × 12 mm (H)​
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• Weight: Approximately 76 g (packaged)​
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• Materials:
• Case: ABS resin​
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• Lens: Acrylic resin​
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• Accessories: Slits (0.5 × 3 mm, 1 × 3 mm, 3 × 0.5 mm, 3 × 1 mm); Sems screws with spring washers and flat washers (M2.6 × 12); Instruction manual