Omron E3JM-DS70M4T-US Photoelectric Sensor
Omron E3JM-DS70M4T-US is a diffuse-reflective photoelectric sensor for sensing objects up to 700 mm using a 940 nm infrared LED. Light reflected from the target returns directly to the sensor, providing a compact sensing arrangement without an external reflector. The SPDT relay supports switching up to 3 A at 250 VAC under the stated conditions. Its power input supports 12 to 240 VDC and 24 to 240 VAC, while selectable Light-ON or Dark-ON operation allows the switching logic to match the machine sequence. An adjustable 0.1 to 5 second timer provides additional output control. The E3JM-DS70M4T-US belongs to the E3JM Series. Related configurations can be explored under infrared diffuse sensors across the wider range from Omron Industrial Automation Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3JM-DS70M4T-US |
Omron E3JM-DS70M4T-US 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 | Delay time: 0.1 to 5 s (adjustable) |
| 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-DS70M4T-US Photoelectric Sensor uses diffuse-reflective sensing with a 940 nm infrared LED for targets positioned within a maximum distance of 700 mm. The sensor monitors light returned from the target surface, removing the need for a separate reflector in suitable applications. Its SPDT relay supports up to 3 A at 250 VAC under the specified resistive-load condition. The unit accepts 12 to 240 VDC and 24 to 240 VAC at 50/60 Hz, while terminal-block wiring provides the electrical interface. Light-ON or Dark-ON operation can be selected according to the required switching logic. A one-turn adjuster supports sensitivity setup, and an adjustable delay from 0.1 to 5 seconds provides additional timing control. Operate or reset time is specified at 30 ms max., while power consumption is 2 W max.
For an Omron infrared timer photoelectric sensor requiring 700 mm diffuse sensing and SPDT relay output, the corresponding model is the E3JM-DS70M4T-US. Its adjustable timer allows the switching response to be delayed while maintaining broad AC/DC supply compatibility. The specification also matches searches for an Omron 700 mm relay sensor and Omron AC DC diffuse photoelectric sensor. Operating temperature extends from -25 to 55°C, and sensitivity adjustment supports setup for different target surfaces. For the related timer-equipped DS70 model with the standard T designation, see E3JM-DS70M4T.
