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E3S-R1E4 2M

Transparent Object Detection Sensor


Photoelectric sensor for detecting transparent object, Sensing distance 1 m, Horizontal type, 2 m

Sensing method Retro-reflective without M.S.R. function
Sensing distance When using the E39-R1: 1 m max.
Light source Infrared LED (950 nm)
Connection method Pre-wired models

Item list of E3S-R

  • Ratings/Performance
ShapeSquare type
Sensing methodRetro-reflective without M.S.R. function
Sensing distanceWhen using the E39-R1: 1 m max.
Standard sensing objectOpaque: 75 mm dia. min.
Glass tube (10 mm dia. thickness: 1 mm length: 30 mm)
Light sourceInfrared LED (950 nm)
Power supply voltage12 to 24 VDC±10% ripple (p-p) 10% max.
Current consumption40 mA max.
Control outputNPN voltage output
24 VDC max.
80 mA max.
Residual voltage: 2 V max.
Operation modeLight-ON/Dark-ON selectable
Protective circuitOutput short-circuit protection, Power supply reverse polarity protection
Response timeOperate or reset: 1 ms max.
Sensitivity settingSingle-turn adjustment
Ambient illuminanceIncandescent lamp: 3,000 lx max.
Sunlight: 10,000 lx max.
Ambient temperature range (Operating)-25 to 55 ℃ (with no freezing or condensation)
Ambient temperature range (Storage)-40 to 70 ℃ (with no freezing or condensation)
Ambient humidity range (Operating)35 to 85 % (with no condensation)
Ambient humidity range (Strage)35 to 95 % (with no condensation)
Insulation resistance20 MΩ min. (500 VDC megger)
Dielectric strength1000 VAC 50/60 Hz 1 min
Vibration resistanceDestruction: 10 to 55 Hz, 1.5 mm double amplitude each in X, Y, and Z directions for 2 h
Shock resistanceDestruction: 500 m/s2 3 times each in X, Y and Z directions
Degree of protectionIEC: IP67
Connection methodPre-wired models (Cable length 2 m)
IndicatorLight indicator (red), Stability indicator (green)
WeightPackage: Approx. 190 g
AccessoriesInstruction manual, Mounting bracket (with screws), Sensitivity adjustment driver, Sensitivity adjuster, Reflector
MaterialCase: Zinc diecast
Lens: Polycarbonate
Mounting Bracket: Iron
  • Dimensions

  • Output circuit diagram

  • Timing chart

  • Parallel operating range

  • Setting distance

Excess gain ratio vs. setting distance


Transparent Object Detection Sensor