Omron E3Z-R61K 5M Photoelectric Sensor
Omron E3Z-R61K 5M is a retro-reflective photoelectric sensor using an M.S.R. function across a specified sensing range from 100 mm to 4 m. Its 670 nm red LED provides the optical source directed toward the reflector, while the NPN output communicates the switching state to compatible PLC and machine-control circuitry. Light-ON and Dark-ON operation can be selected according to the required switching logic. The sensor operates from 12 to 24 VDC and includes a 5 m pre-wired cable for extended connection to control equipment. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. No additional characteristic is inferred from the K suffix. The E3Z-R61K 5M provides longer fixed wiring within the retro-reflective photoelectric sensor range across Omron Industrial Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-R61K 5M |
Omron E3Z-R61K 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, 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-R61K 5M Photoelectric Sensor uses retro-reflective sensing with an M.S.R. function across a specified range from 100 mm to 4 m. Its 670 nm red LED directs light toward the reflector, while the NPN output communicates the switching state to compatible PLC and machine-control circuitry. The unit operates from 12 to 24 VDC and consumes up to 30 mA. Light-ON and Dark-ON operation can be selected according to the required switching logic, while response time is specified at 1 ms maximum. A 5 m pre-wired cable provides extended fixed wiring from the sensor position to associated equipment. PBT is listed for the case and denatured polyarylate for the optical section. The supplied specifications do not define a separate technical characteristic associated with the K suffix.
For an Omron retro-reflective photoelectric sensor requiring NPN switching, M.S.R. operation, and a longer cable, the relevant model is the E3Z-R61K. Its 100 mm to 4 m range supports reflector-based sensing across the stated span, while the 12 to 24 VDC supply and selectable Light-ON or Dark-ON logic support integration with compatible machine-control circuitry. Current consumption remains specified at 30 mA maximum, and the 1 ms response supports quick output changes. Its characteristics also match requirements for an Omron 4 m retro-reflective sensor and Omron pre-wired NPN sensor. For the same model designation using a shorter 2 m pre-wired cable, see E3Z-R61K 2M.
