Key Specifications Parameter Specification Model E3Z-T81A (Sold as Emitter + Receiver set) Type Through-beam Photoelectric Sensor (Built-in Amplifier) Sensing Distance 10 m Output Type PNP open collector Standard Sensing Object Opaque object, 12 mm diameter min. Light Source Red LED (660 nm) - Visible beam Operation Mode Light-ON / Dark-ON selectable Detailed Specifications Parameter Specification Power Supply Voltage 12 to 24 VDC ±10% (ripple p-p 10% max.) Current Consumption Emitter: 15 mA max.; Receiver: 20 mA max. Control Output Current 100 mA max. (26.4 VDC max.) Residual Voltage 1 V max. (load current <10 mA) / 2 V max. (load current 10-100 mA) Response Time 1 ms max. (operate or reset) Directional Angle Emitter/Receiver: 3 to 15° Sensitivity Setting Single-turn adjustment Protective Circuits Output short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection Environmental & Protection Specifications Parameter Specification Degree of Protection IP67 (IEC 60529) - Dust-tight and waterproof Ambient Temperature (Operating) -25 to 55°C (with no icing) Ambient Temperature (Storage) -40 to 70°C Ambient Humidity (Operating) 35% to 85% (with no condensation) Ambient Illuminance Incandescent: 3,000 lx max. / Sunlight: 10,000 lx max. Vibration Resistance 10 to 55 Hz, 1.5 mm double amplitude, 2 hours each in X/Y/Z Shock Resistance 500 m/s², 3 times each in X/Y/Z Insulation Resistance 20 MΩ min. (500 VDC megger) Dielectric Strength 1000 VAC 50/60 Hz for 1 min Physical Specifications Parameter Specification Connection Method Pre-wired cable (standard length: 2 m) or connector variants Indicators Emitter: Power indicator (orange); Receiver: Operation indicator (orange), Stability indicator (green) Case Material Polybutylene terephthalate (PBT) Lens Material Denatured Polyarylate Dimensions (W x H x D) 10.8 x 33.2 x 20 mm Weight (Packaged) Approx. 120 g