Omron E3JM-DS70M4 Photoelectric Sensor
Omron E3JM-DS70M4 is a diffuse-reflective photoelectric sensor designed for direct object sensing up to 700 mm when referenced to white paper measuring 200 × 200 mm. Its 940 nm infrared LED sends light toward the target and evaluates the returned optical level without requiring a separate reflector. An SPDT relay provides the switching interface, while 12 to 240 VDC and 24 to 240 VAC supply compatibility supports different control-power arrangements. Light-ON or Dark-ON operation can be selected, and a one-turn adjuster supports sensitivity setting. The E3JM-DS70M4 forms part of the E3JM Series. Similar options can be reviewed under 700 mm diffuse sensors across the wider sensing range available from Omron Diffuse Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3JM-DS70M4 |
Omron E3JM-DS70M4 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Diffuse-reflective |
| Sensing Distance | White paper (200 × 200 mm): 700 mm |
| Light Source | Infrared LED (940 nm) |
| Power Supply Voltage | 12 to 240 VDC, ripple (p-p): 10% max. 24 to 240 VAC, 50/60 Hz |
| Output Configuration | Relay |
| Connection Method | Terminal block |
| Control Output | SPDT, 250 VAC, 3A (cosφ=1) max., 5 VDC, 10 mA min. |
| Operation Mode | Light-ON Dark-ON (switch selectable) |
| Response Time | Operate or reset: 30 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Timer Function | ON-delay/OFF-delay/One-shot delay switch selectable |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. |
| Ambient Temperature Range | Operating: −25°C to 55°C, Storage: −30°C to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 45% to 85% (with no condensation), Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 2,000 VAC, 50/60 Hz for 1 min. |
| Vibration Resistance | 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | 500 m/s2 3 times each in X, Y, and Z directions, 100 m/s2 3 times each in X, Y, and Z directions |
| Degree Of Protection | IEC 60529: IP66 |
| Material | ABS (Acrylonitril Butadiene Styrene), Methacrylic resin, Polycarbonate, Iron |
| Weight | Approx. 160 g |
The Omron E3JM-DS70M4 Photoelectric Sensor uses diffuse-reflective sensing for targets positioned up to 700 mm away when referenced to white paper measuring 200 × 200 mm. A 940 nm infrared LED directs light toward the target, and the returned optical level controls the SPDT relay output without requiring a separate reflector. The sensor accepts 12 to 240 VDC or 24 to 240 VAC at 50/60 Hz, supporting several machine-control power arrangements. The relay is rated up to 3 A at 250 VAC under the stated resistive-load condition. Light-ON or Dark-ON operation can be selected, while a one-turn adjuster supports sensitivity setting. ON-delay, OFF-delay, and one-shot modes provide additional output timing options. Operate or reset time is specified at 30 ms max., power consumption is 2 W max., and terminal-block wiring provides a serviceable electrical connection.
For an Omron 700 mm diffuse photoelectric sensor requiring relay output and wide AC/DC input compatibility, the corresponding model is the E3JM-DS70M4. Its infrared optical source supports direct target sensing, while the SPDT relay provides a practical interface for compatible machine circuits. The specification also fits searches for an Omron relay diffuse sensor and Omron multi voltage photoelectric sensor. Operating temperature extends from -25 to 55°C, and selectable timer modes allow the output sequence to be matched to the application. For a closely related 700 mm E3JM diffuse-reflective model using the G-version wiring format, see E3JM-DS70M4-G.
