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E3ZG-LS81-DO Safety Light Curtain | F3SJ Series Industrial Safety Sensor

The E3ZG-LS81-DO is a Distance-Setting Photoelectric Sensor that utilizes Time of Flight (TOF) technology. Unlike standard photoelectric sensors that rely on light intensity (which varies with object color and gloss), the TOF method calculates distance based on the time it takes for a light pulse to return to the sensor.

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Technical Specifications Parameter Specification Brand OMRON Model E3ZG-LS81-DO (-T) Series E3ZG-LS Type Distance-Setting Photoelectric Sensor (TOF) Sensing Method TOF (Time of Flight) – Reflective -1-5 Detection Range 50 to 900 mm (White paper 200×200 mm) -1-2-5 Setting Range 50 to 900 mm -1-2-5 Output Configuration PNP Open Collector -1-5 Operation Mode Dark-ON -1 Light Source Infrared Laser (940 nm), Class 1 (IEC/EN60825-1:2014) -1-2-5 Spot Diameter Approx. φ116 mm (at 900 mm distance) -1-2-5 Supply Voltage DC 10 to 24 V (Class 2) -1-2-5 Current Consumption 20 mA max. -1-2-5 Load Current 100 mA max. -1-2-5 Residual Voltage 2 V max. (Load current 10–100 mA); 1 V max. (Load current <10 mA) -1-2-5 Response Time 100 ms max. (Operate & Reset) -1-2-5 Distance Setting Teaching method (1-point teaching for -T models) -1-2-5 Degree of Protection IP67 (IEC 60529) -1-2-5 Connection Method Pre-wired cable, 2 meters (Standard) -1-5 Indicators Operation indicator (Orange), Stability/Communication indicator (Green) -1-2-5 Ambient Temp. (Operating) -20 to +55°C -1-2-5 Ambient Temp. (Storage) -40 to +70°C -1-2-5 Ambient Humidity (Operating) 35% to 85% RH -1-2-5 Vibration Resistance 10–55 Hz, 1.5 mm double amplitude, 2 hours each in X, Y, Z directions -1-2-5 Shock Resistance 500 m/s², 3 times each in X, Y, Z directions -1-2-5 Housing Material ABS (Case), PMMA (Lens) -1-2-5 Weight (Packaged) Approx. 120 g