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E3Z-T81-L Safety Light Curtain | F3SJ Series Industrial Safety Sensor

The Omron E3Z-T81-L is the emitter unit for a through-beam (opposed-mode) photoelectric sensor from the compact, built-in amplifier E3Z series . It is designed to work with the corresponding E3Z-T81-D receiver to form a complete through-beam sensing pair .

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Key Specifications Parameter Specification Product Type Emitter unit (must be paired with E3Z-T81-D receiver) Sensing Method Through-beam (opposed) Sensing Distance 15 m (with receiver) Output Configuration PNP system (when paired with receiver) Light Source Infrared LED (870 nm) Supply Voltage 12–24 V DC ±10% Current Consumption 15 mA (emitter) / 30 mA max. (system total) Response Time 1 ms max. (operate or reset) Operation Mode Light-ON / Dark-ON selectable (on receiver) Sensitivity Adjustment Single-turn adjuster Protection Circuits Power supply reverse polarity protection, Output short-circuit protection Ambient Illumination Incandescent lamp: 3,000 lx max.; Sunlight: 10,000 lx max. Ambient Temperature (Operating) -25°C to 55°C (with no icing) Ambient Temperature (Storage) -40°C to 70°C Ambient Humidity (Operating) 35% to 85% (with no condensation) Degree of Protection IP67 (IEC), IP69K Connection Method Pre-wired, 2-meter cable (E3Z-T81-L 2M) Indicators Power indicator (orange) Weight (Packed) Approx. 65 g