Omron E3RB-DP23 Photoelectric Sensor
Omron E3RB-DP23 is a PNP diffuse-reflective photoelectric sensor designed for direct object sensing across a distance of up to 700 mm. Its red LED directs light toward the target, while returned light supplies the sensing information without requiring a separate reflector. The sensor operates from 10 to 30 VDC and provides a PNP output for compatible PLC inputs and machine-control circuitry. An M12 connector provides detachable electrical connection, while Light-ON or Dark-ON operation supports different switching requirements. Response time is specified at 0.5 ms, and current consumption is 25 mA maximum. Within the E3RB Series, the E3RB-DP23 provides the longer 700 mm diffuse option. Related 700 mm photoelectric sensors can be explored across the Omron Sensor Range.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3RB-DP23 |
Omron E3RB-DP23 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Shape | Cylindrical radial |
| Sensing Distance | 700 mm |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | PNP |
| Connection Method | M12 Connector |
| Light Source (Wavelength) | Red LED |
| Thread Size | M18 |
| Length | 61 mm |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | 0.5ms |
| Degree Of Protection | IP67/IP69K |
| Material Housing | Brass, nickel plated |
The Omron E3RB-DP23 Photoelectric Sensor uses diffuse-reflective sensing in a cylindrical radial body for direct object sensing across a distance of up to 700 mm. Its red LED sends light toward the target, while returned light supplies the sensing information required to change the PNP output state. The sensor operates from 10 to 30 VDC and uses an M12 connector for detachable electrical connection. Current consumption is specified at 25 mA maximum. Light-ON or Dark-ON operation can be selected according to the required control logic, while response time is specified at 0.5 ms. The M18 body measures approximately 61 mm in length and uses nickel-plated brass, providing a threaded metal mounting format for machine installations.
For an Omron PNP diffuse reflective photoelectric sensor requiring a longer 700 mm sensing distance and M12 connection, the corresponding model is the E3RB-DP23. Its radial optical orientation provides side-facing sensing from the cylindrical body. IP67 and IP69K ratings are listed, supporting installation where the sensor may encounter dust, moisture, or washdown exposure. Its specification also aligns with searches for an Omron 700 mm PNP sensor and Omron M18 diffuse sensor. The longer working distance can support object presence and position sensing where the target cannot pass close to the sensor. For a related E3RB PNP diffuse-reflective model with a shorter 300 mm sensing distance, see E3RB-DP22.
