Omron E3Z-R61 0.5M Photoelectric Sensor
Omron E3Z-R61 0.5M is a retro-reflective photoelectric sensor using an M.S.R. function across a specified sensing distance from 100 mm to 4 m. Its 670 nm red LED sends light toward the reflector, while the returned optical path establishes the sensing condition when a target enters the beam area. The NPN output communicates the switching state to compatible machine-control circuitry, while selectable Light-ON and Dark-ON operation supports different control requirements. The sensor operates from 12 to 24 VDC and includes a 0.5 m pre-wired cable for short fixed wiring. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. Within the E3Z Series, the E3Z-R61 0.5M supports the 4 m retro-reflective sensor range across Omron Industrial Sensing Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-R61 0.5M |
Omron E3Z-R61 0.5M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective with M.S.R. function |
| Shape | Square type |
| Sensing Distance | 100 mm to 4 m |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable, 0.5m Length |
| Current Consumption | 30 mA max. |
| Light Source (Wavelength) | Red LED (670 nm) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | 1 ms max. |
| Degree Of Protection | IEC: IP67 |
| Material | Polybutylene terephthalate (PBT) |
| Material Lens | Denatured Polyarylate |
| Features | Transparent detection |
| Weight | 65g |
The Omron E3Z-R61 0.5M Photoelectric Sensor uses retro-reflective sensing with an M.S.R. function across a specified range from 100 mm to 4 m. A 670 nm red LED sends light toward the reflector, while the returned optical path establishes the sensing condition when a target enters the beam area. The NPN output communicates the switching state to compatible industrial control circuitry. Light-ON or Dark-ON operation can be selected according to the required control logic. The sensor operates from 12 to 24 VDC and consumes up to 30 mA, while response time is specified at 1 ms maximum. A 0.5 m pre-wired cable provides short fixed wiring. PBT is listed for the case, while denatured polyarylate is specified for the optical material.
For an Omron retro-reflective photoelectric sensor requiring NPN output and a short pre-wired connection, the relevant model is the E3Z-R61. The stated 100 mm to 4 m range allows the reflector to be positioned farther from the sensing unit than with close-range distance-setting models. The M.S.R. function is part of the specified optical arrangement, while selectable Light-ON or Dark-ON operation allows the switching sequence to match the control requirement. Its characteristics suit requirements for an Omron 4 m retro-reflective sensor, Omron NPN photoelectric sensor, and short-cable reflective sensor. For the same E3Z-R61 configuration with a longer 2 m pre-wired cable, see E3Z-R61 2M.
