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  • Brand Name: omron
  • Model Number: omron E3Z-D81 photoelectric sensor


Omron E3Z-D81 Diffuse-Reflective Photoelectric Sensor
Pre-Wired Type , Sensing Distance 5 to 100mm , PNP Transistor Output

Omron E3Z-D81 Diffuse-Reflective Photoelectric Sensor

Pre-Wired Type , Sensing Distance 5 to 100mm , PNP Transistor Output

E3Z-D81, 5M,

E3Z-D81K, 2M,

E3Z-D81K-M3J, 0.3M,

E3Z-D81-M5J, 0.3M,



Sensing method


Sensing distance

0 mm to 100 mm (White paper 100*100mm)

Differential distance

20% Max. of sensing distance

Light source

Infrared LED (860nm)

Power supply voltage

12 to 24 VDC -10% to 10% (ripple(p-p) :10% Max.)

Current consumption

30mA 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 mode

Light-ON/Dark-ON selectable

Load power supply voltage

26.4 VDC Max.

Protective circuit

Surge suppressor
Output short-cut protection
Output reverce polarity protection
Power supply reverce polarity protection
Mutual interference prevention

Response time

1 ms Max.

Sensitivity setting

Single-turn adjustment

Ambient illuminance

Incandescent lamp:3000 lux Max., Sunlight:10000 lux Max.

Ambient temperature

Operating: -25 to 55 CEL
Storage: -40 to 70 CEL
(with no icing or condensation)

Ambient humidity

Operating: 35 to 85 %RH
Storage: 35 to 95 %RH
(with no condensation)

Insulation resistance

20 M OHM Min. at 500 VDC between charged parts and the case

Dielectric strength

1000 VAC at 50/60 Hz for 1 minute between charged parts and the case

Vibration resistance

10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions

Shock resistance

500m/s2 for 3 times each in X, Y, and Z directions

Degree of protection

IEC60529: IP67

Applicable standard (EC Directive (Low Voltage Directive))


Applicable standard (EC Directive (EMC Directive))

EMI: EN60947-5-2
Emission Enclosure: EN55011 Group 1 classA
EMS: EN60947-5-2
Immunity ESD: IEC61000-4-2
Immunity RF-interference: IEC61000-4-3
Immunity Burst: IEC61000-4-4
CE marking: Equipped

Connection method

Pre-wired models (Cable length: 5 m)


Operation indicator(orange), Stability indicator(green)

Weight (packed state)

approx. 130 g

Tightening torque

0.5 N.m Max. (with M3 screw)

Material (case)


Material (lens)

Denatured polyarylate


Instruction manual

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