Omron E3FB-DN13 2M Photoelectric Sensor
Omron E3FB-DN13 2M is an NPN diffuse-reflective photoelectric sensor with a sensing distance of up to 1 m using white paper measuring 300 × 300 mm as the stated reference target. Its 624 nm red LED provides a visible optical source, while a one-turn adjuster supports sensitivity setting. The sensor operates from 10 to 30 VDC and includes a pre-wired 2 m cable for machine connection. Light-ON or Dark-ON operation is selectable by wiring, and response time is 0.5 ms. Orange operation and green stability indicators provide visual status. Within the E3FB Series, the E3FB-DN13 2M provides extended diffuse sensing. Longer direct-sensing applications can use 1 m diffuse photoelectric sensors from Omron Sensing Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3FB-DN13 2M |
Omron E3FB-DN13 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Sensing Distance | 1 m (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 | Pre-wired 2M Cable |
| 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. 60 g/ Approx. 50 g |
The Omron E3FB-DN13 2M Photoelectric Sensor uses diffuse-reflective sensing across a distance of up to 1 m, specified with white paper measuring 300 × 300 mm as the reference target. A 624 nm red LED provides visible sensing light, while the returned signal from the target is evaluated directly without a reflector. Its NPN output interfaces with compatible industrial control inputs, and Light-ON or Dark-ON operation is selectable by wiring. The sensor operates from 10 to 30 VDC with 25 mA max. current consumption and includes a pre-wired 2 m cable. Response time is 0.5 ms. A one-turn adjuster supports sensitivity setting, while orange operation and green stability indicators provide visual status. Electrical protection includes power-supply reverse polarity, output short-circuit, and output reverse polarity.
For an Omron long-range diffuse photoelectric sensor requiring NPN output and pre-wired installation, the relevant model is the E3FB-DN13. Operating temperature is specified from -25 to 55°C, with storage from -40 to 70°C under the stated non-condensing conditions. IP67 and IP69K enclosure ratings are listed, while nickel-brass, PMMA, and POM are among the specified materials. Its configuration also suits searches for an Omron 1 m diffuse sensor, Omron NPN photoelectric sensor, and Omron adjustable photoelectric sensor. For a related NPN E3FB model providing a 1000 mm sensing distance with detachable M12 connector wiring, see E3FB-DN23.


