Omron E3FB-DN22 Photoelectric Sensor
Omron E3FB-DN22 is an NPN diffuse-reflective photoelectric sensor designed for object sensing across a specified 300 mm distance. Its red LED sends light toward the target and evaluates the returned optical signal directly, so a separate reflector or receiving unit is not required. The sensor operates from 10 to 30 VDC and uses an M12 connector for detachable machine wiring. Light-ON or Dark-ON operation can be selected to suit different control sequences, while the 0.5 ms response supports fast switching. Within the E3FB Series, the E3FB-DN22 provides the 300 mm connector configuration. Applications requiring removable wiring can explore 300 mm diffuse photoelectric sensors across Omron Industrial Sensing Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3FB-DN22 |
Omron E3FB-DN22 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Sensing Distance | 300 mm (white paper: 300 × 300 mm) |
| Light Source | Red LED (624 nm) |
| Power Supply Voltage | 10 to 30 VDC (include voltage ripple of 10%(p-p) max.) |
| Output Configuration | NPN |
| Connection Method | M12 Connector |
| Current Consumption | 25 mA max. |
| Control Output | Load current: 100 mA max. (Residual voltage: 3 V max.), Load power supply voltage: 30 VDC max. |
| Operation Mode | Light-ON/Dark-ON selectable by wiring |
| Response Time | 0.5 ms |
| Sensitivity Adjustment | One-turn adjuster |
| Indicators | Operation indicator (orange) Stability indicator (green) |
| Ambient Illumination | Incandescent lamp: 3,000 lx max./ Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: -25 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 at 50/60 Hz for 1 min. between current-carrying parts and case |
| 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 | Power supply reverse polarity protection, Output short-circuit protection, and Output reverse polarity protection |
| Degree Of Protection | IEC: IP67, DIN 40050-9: IP69K |
| Material | Nickel-brass, PMMA, POM, Nickel-brass |
| Weight | Approx. 95 g/ Approx. 65 g |
The Omron E3FB-DN22 Photoelectric Sensor uses diffuse-reflective sensing in an M18 cylindrical axial housing for object sensing across a specified 300 mm distance. A red LED provides the optical source, directing light toward the target and evaluating the returned signal without requiring a separate reflector. Its NPN output transfers the switching state to compatible PLC inputs and machine-control circuitry. Light-ON or Dark-ON operation can be selected according to the required control logic. The sensor operates from a 10 to 30 VDC supply and uses an M12 connector, providing detachable electrical wiring for installation and maintenance. Response time is specified at 0.5 ms. The nickel-plated brass housing uses an M18 threaded mounting format and has a stated length of 48 mm. IP67 and IP69K enclosure ratings support machine installation under the stated environmental conditions.
For an Omron diffuse-reflective photoelectric sensor requiring NPN output, 300 mm sensing, and M12 connector wiring, the relevant model is the E3FB-DN22. Its connector interface allows the sensing unit to be removed while the machine-side cable remains installed. Direct reflection from the target removes the need to align another optical unit, while selectable Light-ON or Dark-ON operation helps match the switching state to different control sequences. The specification also suits searches for an Omron NPN photoelectric sensor, Omron 300 mm diffuse sensor, and Omron M12 photoelectric sensor. For the corresponding NPN model using the same 300 mm sensing distance with a pre-wired 2 m cable, see E3FB-DN12 2M.
