Omron E3ZM-R61 2M Photoelectric Sensor
Omron E3ZM-R61 2M is a retro-reflective photoelectric sensor specified for object sensing from 100 mm to 4 m. Its red LED sends light toward a reflector, and changes in the returned optical path establish the switching condition. The NPN output communicates this state to compatible PLC and machine-control inputs, while Light-ON and Dark-ON operation supports alternative control logic. The sensor operates from 10 to 30 VDC, consumes up to 25 mA, and includes a 2 m pre-wired cable for fixed electrical connection. Response time is specified at 1 ms maximum. Within the E3ZM Series, the E3ZM-R61 2M provides fixed wiring within the 4 m retro-reflective sensor range across Omron Industrial Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3ZM-R61 2M |
Omron E3ZM-R61 2M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective |
| Shape | Square type |
| Sensing Distance | 100 mm to 4 m |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 2m |
| Current Consumption | 25 mA max. |
| Light Source (Wavelength) | Red LED |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | SUS316L |
| Material Lens | Methacrylate resin |
| Weight | 90 g |
The Omron E3ZM-R61 2M Photoelectric Sensor uses retro-reflective sensing across a stated distance from 100 mm to 4 m. A red LED directs light toward the reflector, while the returning optical path establishes the switching condition when a target enters the sensing area. The NPN output transfers this state to compatible industrial control circuitry. Power is supplied from 10 to 30 VDC, and current consumption is specified at 25 mA maximum. Light-ON and Dark-ON operation supports alternative output behavior, while response time is stated at 1 ms maximum. A 2 m pre-wired cable provides fixed connection to the machine-side control wiring. SUS316L is specified for the body and methacrylate resin for the optical material, defining the supplied construction of this square-type E3ZM model.
For an Omron retro-reflective sensor requiring NPN switching and moderate fixed wiring length, the relevant model is the E3ZM-R61. Its optical span reaches 4 m while starting from a stated 100 mm minimum, making the sensing specification substantially longer than the short-range BGS models in the same series. The 2 m cable suits layouts where the control termination is located near the sensing position, while the 10 to 30 VDC operating range supports compatible industrial inputs. The supplied 25 mA maximum current and 1 ms response define its main electrical characteristics. For the same optical configuration with more wiring length, see E3ZM-R61 5M.
