Key Technical Specifications Parameter Specification Series E3FA Sensor Type Photoelectric Sensor (Retro-reflective for Transparent Objects) Housing Material ABS Plastic Housing Diameter M18 threaded cylindrical Sensing Method Transparent detected with P-opaquing function Sensing Distance 100 to 500 mm (when using E39-RP1 reflector) Standard Sensing Object Glass plate (t = 1.0 mm, 150 x 150 mm) Light Source Polarized Red LED (624 nm) Output Configuration NPN - Open collector Output Operation Light-ON / Dark-ON selectable Max. Output Current 100 mA Residual Voltage 3 V max. Supply Voltage 10 to 30 VDC ±10% Current Consumption 25 mA max. Response Time 0.5 ms (500 µs) max. Switching Frequency 2,000 Hz (2 kHz) Connection Method Pre-wired cable Cable Length 2 meters (Model E3FA-BN11 5M also available) Degree of Protection (IP) IP67, IP69K (IEC60529, DIN40050-9) Operating Temperature -25°C to 55°C (with no freezing or condensation) Storage Temperature -40°C to 70°C Operating Humidity 35% to 85% Ambient Illumination Incandescent lamp: 3,000 lx max. / Sunlight: 10,000 lx max. Vibration Resistance Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each direction Shock Resistance Destruction: 500 m/s², 3 times each direction Insulation Resistance 20 MΩ min. (at 500 VDC) Dielectric Strength 1,000 VAC at 50/60 Hz for 1 min Protection Circuits Output short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection Indicators Operation indicator (orange), Stability indicator (green) Sensitivity Adjustment Single-turn adjustment Material (Case) ABS Material (Lens) Methacrylate resin (PMMA) Body Length 41 mm Body Diameter 18 mm (M18 thread) Weight Package: Approx. 60 g, Main Unit: Approx. 50 g