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Transparent Object Detection Photoelectric Sensor


Superb Detection of Many Types of Transparent Objects

Sensing method Retro-reflective (with MSR function)
Model NPN output E3S-DBN[]1 E3S-DBN[]1T E3S-DBN[]2 E3S-DBN[]2T
PNP output E3S-DBP[]1 E3S-DBP[]1T E3S-DBP[]2 E3S-DBP[]2T
Sensing distance 0 to 3.5 m (with E39-R8) 0 to 0.5 m (with E39-R21)
Spot diameter (reference
value) *1
6-mm dia.
(at sensing distance of 250 mm)
2.5-mm dia.
(at sensing distance of 200 mm)
Light source (wavelength) Red LED (624 nm)
Power supply voltage 10 to 30 VDC, including 10% ripple (p-p)
Power consumption 720 mW max. (current consumption: 30 mA max. at power supply voltage of 24 VDC)
Control output Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual
voltage: 2 V max.)
Open-collector output (NPN/PNP output depending on model.)
Indicators Light indicator (orange) and stability indicator (green)
Protection circuits Reversed power supply polarity protection, output short-circuit protection, reversed
output polarity protection, and mutual interference prevention
Response time Operate or reset: 0.5 ms max.
Sensitivity adjustment Smart Teaching Eleven-turn adjuster Smart Teaching Eleven-turn adjuster
Smart Teaching lock function Provided. --- Provided. ---
Automatic compensation (AC3) Provided (OFF by
--- Provided (OFF by
Ambient illumination (Receiver side) Incandescent lamp: 3,000 lx max., Sunlight: 10,000 lx max.
Ambient temperature range Operating: -25 to 60°C, Storage: -40 to 70°C (with no icing or condensation)
Ambient humidity range Operating: 35% to 85%, Storage: 35% to 95% (with no condensation)
Insulation resistance 20 MΩ min. (at 500 VDC)
Dielectric strength 1,000 VAC at 50/60 Hz for 1 minute
Vibration resistance Destruction: 10 to 55 Hz with double amplitude of 1.5 mm for 2 hours each in X, Y,
and Z directions
Shock resistance Destruction: 500 m/s2 3 times each in X, Y, and Z directions
Degree of protection *2 IEC IP67, DIN 40050-9 IP69K
Connection method Pre-wired cable (standard cable length: 2 m)
Connector (M12, 4 pins)
Pre-wired connector (standard cable length: 0.3 m/M12, 4 pins)
Pre-wired models Approx. 80 g/approx. 60 g
Models with
Approx. 60 g/approx. 40 g
Models with
pre-wired connector
Approx. 180 g/approx. 160 g
Materials Case Polybutylene terephthalate (PBT)/ABS
Lens Methacrylic resin (PMMA)
Indicators Methacrylic resin (PMMA)
Sensitivity adjuster
Threshold adjuster
Polyester elastomer
Cable Polyvinyl chloride (PVC)
Accessories Instruction manual

E3S-DB Specifications 2

*1. Refer to Emission Spot Diameter vs. Distance in Engineering Data (Reference Value) on Data Sheet for details.
*2. IP69K Degree of Protection Specification
       IP69K is a protection standard against high temperature and high-pressure water defined in the German standard DIN 40050, Part 9. The test piece is sprayed with water at 80°C at a water pressure of 80 to 100 BAR using a specified nozzle shape at a rate of 14 to 16 liters/min.
       The distance between the test piece and nozzle is 10 to 15 cm, and water is sprayed horizontally for 30 seconds each at 0°, 30°, 60°, and 90° while rotating the test piece on a horizontal plane.