Specifications Specification Category Parameter / Value General Sensing Method Retro-reflective (without M.S.R. function) Shape Square / Rectangular type Sensing Distance (with E39-R4) 30 to 200 mm Sensing Distance (with E39-R37-CA) 10 to 100 mm Standard Sensing Object Opaque object, 27 mm diameter min. Minimum Sensing Object 2 mm diameter (at sensing distance 100 mm) Housing Material Case: PBT / Lens: Methacrylate resin Degree of Protection IP67 (IEC) Mounting Method M2 screw mounting Connection Method Pre-wired (2 m PVC cable) Weight (packaged) Approx. 20 g Optical & Performance Light Source Red LED (650 nm) Directional Angle 2 to 20° Response Time 1 ms max. (operate or reset) Electrical Output Configuration NPN open collector Operation Mode Light-ON (output ON when light is received) Supply Voltage 12 to 24 VDC ±10% (ripple p-p 10% max.) Current Consumption 20 mA max. Output Current 50 mA max. Residual Voltage (Load <10 mA) 1 V max. Residual Voltage (Load 10-50 mA) 2 V max. Protective Circuits Output short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection Indicators Operation Indicator Orange LED (lights when output is ON) Stability Indicator Green LED (lights when incident light is stable) Environmental Ambient Temperature (Operating) -25 to 55 °C (with no freezing or condensation) Ambient Temperature (Storage) -40 to 70 °C Ambient Humidity (Operating) 35% to 85% Ambient Illuminance Incandescent: 5,000 lx max. / Sunlight: 10,000 lx max. Insulation Resistance 20 MΩ min. (at 500 VDC) Dielectric Strength 1000 VAC at 50/60 Hz for 1 min Vibration Resistance 10 to 2000 Hz, 1.5 mm or 300 m/s², 0.5 h each in X, Y, Z Shock Resistance 1000 m/s², 3 times each in X, Y, Z