Key Specifications Parameter Specification Manufacturer OMRON Automation and Safety Series E3S-A Product Status Discontinued (Recommended replacement: E3Z-T81A) Sensor Type Built-in Amplifier Photoelectric Sensor Housing Orientation Vertical type Sensing Method Through-beam (Emitter + Receiver set) Sensing Distance 7 m (7,000 mm) Standard Sensing Object Opaque object, 10 mm dia. min. Light Source Red LED (660 nm) Output Configuration PNP Open Collector Output Current 100 mA max. Residual Voltage 1 V max. Operation Mode Light-ON / Dark-ON selectable Response Time 0.5 ms max. (operate or reset) Supply Voltage 10 to 30 VDC (ripple 10% p-p max.) Current Consumption Emitter: 20 mA max.; Receiver: 20 mA max. Protection Circuits Output short-circuit protection, Power supply reverse polarity protection Sensitivity Adjustment 2-turn endless adjustment (with indicator) Indicators Light indicator (red), Stability indicator (green), Power indicator (red) Degree of Protection IP67 (IEC), NEMA 4X (indoors only) Connection Method Pre-wired (2 m or 5 m cable options) Ambient Temperature (Operating) -25°C to 55°C (with no icing or condensation) Ambient Temperature (Storage) -40°C to 70°C Ambient Humidity (Operating) 35% to 85% Insulation Resistance 20 MΩ min. at 500 VDC Dielectric Strength 1,000 VAC, 50/60 Hz for 1 min Vibration Resistance 10 to 55 Hz, 1.5 mm double amplitude, 2 h each in X, Y, Z Shock Resistance 500 m/s², 3 times each in X, Y, Z Case Material PBT (Polybutylene terephthalate) Lens Material Denatured Polyarylate Dimensions (W × H × D) 12.4 mm × 45.3 mm × 21 mm (approx.) Weight (Packaged) Approx. 150 g