Omron E3S-GS3B4 2M Photoelectric Sensor
Omron E3S-GS3B4 2M is a short-range photoelectric sensor with a specified sensing distance of 30 mm for opaque targets measuring 6 mm in diameter or larger. Its 940 nm infrared LED provides the optical source, while the compact sensing arrangement supports applications where the target passes through a defined nearby sensing area. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable for electrical connection. Load supply voltage is rated up to 24 VDC and load current up to 80 mA. A one-turn adjuster supports setup, while response time is specified at 1 ms. Within the E3S Series, the E3S-GS3B4 2M provides the 30 mm configuration. Explore 30 mm compact photoelectric sensors across Omron Sensing Range.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3S-GS3B4 2M |
Omron E3S-GS3B4 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Distance | 30 mm |
| Standard Sensing Object | Opaque, 6-mm dia. min. |
| Light Source | Infrared LED (940 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 40 mA max. |
| Control Output | Load power supply voltage: 24 VDC max., Load current: 80 mA max. |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −25 to 55°C (with no icing or condensation) Storage: −40 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85% (with no condensation) 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 |
| Vibration Resistance | 10 to 55 Hz with a 1.5-mm double amplitude for 2 h each in X, Y and Z directions |
| Shock Resistance | 500 m/s2, for 3 times each in X, Y and Z directions |
| Degree Of Protection | IEC IP67 |
| Material | Zinc die-cas, Polycarbonate, Polycarbonate |
The Omron E3S-GS3B4 2M Photoelectric Sensor provides short-range optical sensing across a specified distance of 30 mm for opaque targets measuring at least 6 mm in diameter. Its 940 nm infrared LED provides the optical source, while the compact sensing arrangement supports monitoring within a defined nearby area. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable for electrical connection. Current consumption is specified at 40 mA maximum, while load supply voltage is rated up to 24 VDC and load current up to 80 mA. A one-turn adjuster supports sensitivity setting, and operate or reset time is specified at 1 ms maximum. The model uses a zinc die-cast body with polycarbonate components.
For an Omron short range photoelectric sensor requiring a fixed 30 mm sensing distance and infrared optical source, the applicable model is the E3S-GS3B4. Ambient-light resistance reaches 3,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -25 to 55°C, while storage ranges from -40 to 70°C without icing or condensation. Insulation resistance is specified at 20 MΩ minimum at 500 VDC, while dielectric strength is 1,000 VAC for one minute. Its specification also suits searches for an Omron 30 mm sensor and Omron 940 nm photoelectric sensor. For an E3S diffuse-reflective model providing a longer 100 mm sensing distance, see E3S-DS10E4.
