Omron E3ZM-V61 2M Photoelectric Sensor
Omron E3ZM-V61 2M is a diffuse-reflective mark sensor specified for sensing at 12 ±2 mm. Its white LED covers wavelengths from 450 to 700 nm, providing a broad optical source for sensing printed or contrasting marks. The NPN output communicates the switching state to compatible industrial control circuitry, while the operating behavior is established through the teaching sequence rather than a conventional fixed mode selector. The sensor operates from 10 to 30 VDC and includes a 2 m pre-wired cable for electrical connection. Power consumption is specified at 750 mW maximum, while operate or reset time is 50 μs maximum. The E3ZM-V61 2M provides fixed wiring within the 12 mm photoelectric mark sensor range across Omron Industrial Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3ZM-V61 2M |
Omron E3ZM-V61 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Mark Sensor (Diffuse reflective) |
| Sensing Distance | 12±2 mm |
| Light Source | White LED (450 to 700 nm) |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired 2 M Cable |
| Control Output | Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual voltage: 2 V max.) |
| Operation Mode | Set in the order of the teaching operation. |
| Response Time | Operate or reset: 50 μs max. |
| Sensitivity Adjustment | Teaching method |
| Indicators | Operating indicator (yellow), Stability indicator (green), and Teaching indicator (red) |
| Ambient Illumination | (Receiver side) Incandescent lamp: 3,000 lx max., Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −40 to 60°C , Storage: −40 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (with no condensation) |
| Insulation Resistance | 20 MΩ min. (at 500 VDC) |
| Dielectric Strength | 1,000 VAC at 50/60 Hz for 1 min |
| Vibration Resistance | 10 to 55 Hz, 1.5-mm double amplitude for 2 h each in X, Y, and Z directions |
| Shock Resistance | 500 m/s2 for 3 times each in X, Y, and Z directions |
| Protection Circuits | Reversed power supply polarity, Load short-circuit protection, and Reversed output polarity protection |
| Degree Of Protection | IEC 60529: IP67, DIN 40050-9: IP69K Connection method Pre-wired cable (standard length: 2 m) or |
| Material | SUS316, PMMA (polymethylmethacrylate), PES (polyethersulfone), Fluoro rubber, PVC (polyvinyl chloride) |
| Weight | Approx. 85 g |
The Omron E3ZM-V61 2M Photoelectric Sensor uses diffuse-reflective mark sensing at a specified distance of 12 ±2 mm. Its white LED spans wavelengths from 450 to 700 nm, providing a broad optical source for distinguishing the required mark. The NPN output supports a load supply voltage up to 30 VDC and load current up to 100 mA, with residual voltage of 2 V maximum. The sensor itself operates from 10 to 30 VDC, with power consumption specified at 750 mW maximum. Operating behavior is established according to the teaching sequence, while operate or reset time is only 50 μs maximum. A 2 m pre-wired cable provides fixed connection. Yellow operation, green stability, and red teaching indicators support setup and status checking.
For an Omron mark sensor requiring NPN output, rapid switching, and fixed cable wiring, the relevant model is the E3ZM-V61. Operating temperature is specified from -40 to 60°C, while storage extends from -40 to 70°C. The protection circuit includes reversed power-supply polarity, load short-circuit, and reversed output-polarity protection. SUS316, PMMA, PES, fluoro rubber, and PVC are listed among the supplied materials. The 50 μs response distinguishes this configuration from many standard photoelectric models where millisecond switching is sufficient. For a related NPN mark sensor using an M8 connector rather than a fixed cable, see E3ZM-V66.


