Omron E3Z-D81 2M Photoelectric Sensor
Omron E3Z-D81 2M Photoelectric Sensor is a compact diffuse-reflective sensing device designed for accurate short-range object detection in industrial automation systems. It supports a 100 mm sensing distance using an infrared LED (870 nm) light source and operates on a 12 to 24 VDC power supply. This Omron Diffuse Sensor features PNP output, Light-ON/Dark-ON selectable operation, and a durable pre-wired 2 m cable for stable industrial integration. Commonly identified as Omron E3Z D81 in automation environments, this sensor is suitable for conveyors, packaging systems, and machine positioning applications requiring dependable sensing performance. Manufactured by Omron automation, it belongs to the photoelectric sensing range and the E3Z series sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-D81 2M |
Omron E3Z-D81 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Sensing Distance | 100 mm |
| Light Source | Infrared LED (870 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | PNP |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 30 mA max. |
| Control Output | Load power supply voltage: 26.4 VDC max., Load current: 100 mA max. Residual voltage: Load current of less than 10 mA: 1 V max. Load current of 10 to 100 mA: 2 V max. |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Indicators | Operation indicator (orange) Stability indicator (green) Through-beam Emitter has power indicator (orange) only. |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25 to 55°C, Some connector models: −40°C to 55°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, 50/60 Hz for 1 min |
| Vibration Resistance | Destruction: 10 to 55 Hz, 1.5 mm double amplitude 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 |
| Protection Circuits | Reversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention, and Reversed output polarity protection |
| Degree Of Protection | IEC, IP67 |
| Material | PBT (polybutylene terephthalate), Methacrylic resin |
| Weight | Approx. 20 g |
The Omron E3Z-D81 2M is engineered for automation systems that require stable diffuse-reflective sensing in compact industrial environments. Its sensing structure supports accurate object detection across short distances, helping maintain consistent operation in packaging lines, conveyors, and robotic positioning systems. Engineers selecting the Omron E3Z D81 typically consider this model for its reliable switching behavior and compact installation profile.
This Omron Diffuse Sensor delivers dependable sensing performance through its infrared LED sensing method and fast response characteristics. The pre-wired 2 m cable supports easy integration into machine systems, while the selectable Light-ON and Dark-ON modes allow flexible control logic configuration. Its compact housing structure also simplifies installation inside automation equipment where space efficiency is important.
Within the E3Z sensing platform, the E3Z-D81 2M is designed for long-term industrial use with resistance to dust, water, vibration, and electrical disturbances. Its IP67 protection structure helps maintain stable operation in demanding factory environments exposed to moisture and continuous machine movement. This relationship between model, sensing method, and industrial application makes the Omron E3Z-D81 2M a practical solution for reliable photoelectric detection systems.
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