Omron E3C-1 2M Photoelectric Sensor
Omron E3C-1 2M is a through-beam photoelectric sensor designed for a sensing distance of up to 1 m using separate E3C-1L emitter and E3C-1D receiver heads. A 950 nm infrared LED sends light from the emitter toward the receiver, creating a defined optical path across the machine opening. An opaque target with a minimum diameter of 4 mm can interrupt this path. Both heads use pre-wired 2 m cables for electrical connection and independent mounting. Within the E3C Series, the E3C-1 2M provides the 1 m through-beam arrangement. Where separate sensing heads are needed across a machine opening, through-beam photoelectric sensors provide multiple sensing-distance options from Omron Industrial Sensors.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3C-1 2M |
Omron E3C-1 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Sensing Distance | 1 m |
| Emitter Number | E3C-1L 2M |
| Receiver Number | E3C-1D 2M |
| Standard Sensing Object | Opaque, 4-mm dia. min. |
| Light Source | Infrared LED (950 nm) |
| Connection Method | Pre-wired 2M Cable |
| Ambient Illumination | Incandescent lamp: 3,000 lx max., Sunlight 10,000 lx max. |
| Ambient Temperature Range | Operating/Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating/Storage: 35% to 85%RH (with no condensation) |
| Insulation Resistance | 20 MΩ min. at 500 VDC |
| Dielectric Strength | 500 VAC at 50/60 Hz for 1 minute |
| 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 for 3 times each in X, Y, and Z directions |
| Degree Of Protection | IEC 60529 IP66 Limited to indoor use |
| Material | Polycarbonate (PC) |
| Weight | Approx. 60 g |
The Omron E3C-1 2M Photoelectric Sensor uses a through-beam optical arrangement with separate E3C-1L emitter and E3C-1D receiver heads. The emitter transmits 950 nm infrared light across a sensing distance of up to 1 m, while the receiver monitors the optical path as a target passes between the two heads. An opaque object with a minimum diameter of 4 mm is specified. Both sensing heads are supplied with pre-wired 2 m cables, allowing independent positioning across the required machine opening. Ambient-light resistance reaches 3,000 lx under incandescent lighting and 10,000 lx under sunlight. Since the sensing path runs directly between the emitter and receiver, operation does not depend on light returning from the target surface. This arrangement provides a defined optical line across the installed sensing span.
For an Omron through-beam photoelectric sensor requiring separate emitter and receiver heads, a 1 m sensing distance, and fixed cable wiring, the specified model is the E3C-1. Operating and storage temperatures extend from -25 to 70°C under the stated conditions, and polycarbonate is listed as the body material. The configuration also fits searches for an Omron 1 m through-beam sensor, Omron infrared photoelectric sensor, and Omron emitter receiver sensor. For another E3C through-beam model with a shorter 500 mm sensing span, see E3C-S50 2M.

