Omron E3Z-D81 0.5M Photoelectric Sensor
Omron E3Z-D81 0.5M is a diffuse-reflective photoelectric sensor designed for direct object sensing across a stated distance of 1 m. Its 870 nm infrared LED directs light toward the target, while the returned optical signal is evaluated without requiring a separate reflector. The supplied configuration uses NPN output with selectable Light-ON or Dark-ON operation for different machine-control requirements. The sensor operates from 12 to 24 VDC and includes a 0.5 m pre-wired cable for short connection runs. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. Within the E3Z Series, the E3Z-D81 0.5M provides a compact configuration for infrared diffuse-reflective sensors across Omron Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-D81 0.5M |
Omron E3Z-D81 0.5M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Shape | Square |
| Sensing Distance | 1m |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable, 0.5M Length |
| Current Consumption | 30 mA max. |
| Light Source (Wavelength) | Infrared LED (870 nm) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | 1 ms max. |
| Degree Of Protection | IEC: IP67 |
| Material | Polybutylene terephthalate (PBT) |
| Material Lens | Denatured Polyarylate |
| Weight | 65g |
The Omron E3Z-D81 0.5M Photoelectric Sensor uses diffuse-reflective sensing across a stated 1 m working distance. Its 870 nm infrared LED directs light toward the target, while the returned optical signal is evaluated directly by the sensor without requiring a separate reflector. The supplied configuration uses NPN output with selectable Light-ON and Dark-ON operation. The sensor operates from 12 to 24 VDC and includes a 0.5 m pre-wired cable for short wiring runs. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. Its square construction uses PBT and denatured polyarylate materials, supporting compact installation where the sensing point is located close to the electrical connection.
For an Omron diffuse-reflective sensor requiring the supplied NPN architecture and a stated 1 m working distance, the relevant model is the E3Z-D81. Direct target-return sensing eliminates the requirement for a reflector and supports object presence sensing across the listed range. The 12 to 24 VDC operating range supports common DC control equipment, while selectable switching logic allows adaptation to different machine sequences. The supplied specification also states IP67 enclosure protection. This model aligns with searches for an Omron 1 m NPN sensor and Omron infrared diffuse photoelectric sensor. The 0.5 m cable is suited to installations where machine wiring is positioned close to the sensing location. For another supplied E3Z-D81 configuration using a 2 m pre-wired cable and PNP output, see the E3Z-D81 2M.
