E3Z-R81 5M

Compact Photoelectric Sensor with Built-in Amplifier


Retro-reflective with M.S.R. function, Sensing distance 0.1 to 4m, Light-ON/Dark-ON selectable, PNP output, Pre-wired models(5m)

Sensing method Retro-reflective with M.S.R. function
Sensing distance 0.1m to 4m (When using the E39-R1S)
Light source Red LED
Control output (Output type) PNP open collector output
Connection method Pre-wired models (Cable length: 5 m)

Item list of E3Z

  • Ratings/Performance
Sensing methodRetro-reflective with M.S.R. function
Sensing distance0.1m to 4m (When using the E39-R1S)
Standard sensing objectOpaque 75 mm dia. Min.
Directional angleSensor: 2 to 10 DEG
Reflector: 30 DEG Min.
Light sourceRed LED
Power supply voltage12 to 24 VDC -10% to 10% (ripple (p-p) 10% Max.)
Current consumption30 mA DC Max.
Control output (Output type)PNP open collector output
Control output (Load current)0 to 100 mA
Control output (Residual voltage)(DC) 1 V Max. (Load current: Less than 10mA)
(DC) 2 V Max. (Load current: 10 to 100 mA)
Operation modeLight-ON/Dark-ON selectable
Load power supply voltage26.4 VDC Max.
Protective circuitSurge suppressor
Output short-cut protection
Output short-circuit protection
Power supply reverse polarity protection
Mutual interference prevention
Response time1 ms Max.
Sensitivity settingSingle-turn adjustment
Ambient illuminanceIncandescent lamp: 3000 lux Max., Sunlight: 10000 lux Max.
Ambient temperatureOperating: -25 to 55℃
Storage: -40 to 70℃
(with no icing or condensation)
Ambient humidityOperating: 35 to 85%
Storage: 35 to 95%
(with no icing or condensation)
Insulation resistance20 MOhm Min. at 500 VDC between charged parts and the case
Dielectric strength1000 VAC at 50/60 Hz for 1 minute between charged parts and the case
Vibration resistance10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance500 m/s**2 for 3 times each in X, Y, and Z directions
Degree of protectionIEC60529: IP67
Connection methodPre-wired models (Cable length: 5 m)
IndicatorOperation indicator (orange), Stability indicator (green)
Tightening torque0.5 N・m Max. (with M3 screw)
Material (case)PBT
Material (lens)Methacrylate resin
AccessoriesInstruction manual
  • Dimensions

  • Output circuit

  • Parallel operating range


Compact Photoelectric Sensor with Built-in Amplifier


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