Omron E3Z-R61K 2M Photoelectric Sensor
Omron E3Z-R61K 2M is a retro-reflective photoelectric sensor with an M.S.R. function and a specified sensing distance from 100 mm to 4 m. Its 670 nm red LED directs light toward the reflector, while the NPN output transfers the switching state to compatible machine-control inputs. Selectable Light-ON and Dark-ON operation allows the output behavior to match different control requirements. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable for electrical connection. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. No additional characteristic is inferred from the K suffix. Within the E3Z Series, the E3Z-R61K 2M sits within the 4 m MSR sensor range across Omron Automation Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-R61K 2M |
Omron E3Z-R61K 2M 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, 2m 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 2M 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 establishes the optical path toward the reflector, while the NPN output transfers the switching state to compatible industrial control inputs. The sensor operates from 12 to 24 VDC and consumes up to 30 mA. Selectable Light-ON and Dark-ON operation allows the switching behavior to match the required machine logic, while response time is specified at 1 ms maximum. A 2 m pre-wired cable provides fixed electrical connection. The square housing uses PBT for the case and denatured polyarylate for the optical section. No additional technical characteristic is assigned to the K suffix because the supplied specifications do not define one.
For an Omron MSR retro-reflective sensor requiring NPN output and 2 m fixed wiring, the relevant model is the E3Z-R61K. The 100 mm to 4 m sensing range supports reflector-based sensing across both shorter and extended positions within the stated limit. Its selectable output logic allows the electrical behavior to be configured around the control requirement, while 12 to 24 VDC operation supports compatible industrial circuitry. Current consumption is specified at 30 mA maximum, and the 1 ms response supports quick switching. This configuration also suits requirements for an Omron NPN retro-reflective sensor and Omron 4 m photoelectric sensor. For the same supplied model designation with a longer 5 m pre-wired cable, see E3Z-R61K 5M.
