Omron E3Z-R61 2M Photoelectric Sensor
Omron E3Z-R61 2M is a retro-reflective photoelectric sensor with an M.S.R. function and a specified sensing range from 100 mm to 3 m. Its 660 nm red LED establishes the optical path toward the reflector, while the NPN output communicates the switching state to compatible machine-control circuitry. Selectable Light-ON and Dark-ON operation supports 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 operate or reset time is 1 ms maximum. Within the E3Z Series, the E3Z-R61 2M provides fixed wiring within the 3 m retro-reflective sensor range across Omron Industrial Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-R61 2M |
Omron E3Z-R61 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective with M.S.R. function |
| Sensing Distance | 100 mm to 3 m |
| Light Source | Red LED (660 nm) |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired, Cable Length 2M |
| Current Consumption | 30 mA max. |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | Operate or reset: 1 ms max |
| Sensitivity Adjustment | One-turn adjuster |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max |
| Ambient Temperature Range | Operating: −25 to 55°C, Some connector models: −40°C to 55°C * (with no icing or condensation) 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, 50/60 Hz for 1 min |
| Vibration Resistance | Destruction: 10 to 55 Hz, 1.5 mm double amplitude for 2 hours each in X, Y, and Z directions |
| Shock Resistance | Destruction: 500 m/s2 3 times each in X, Y, and Z directions |
| Protection Circuits | Reversed power supply polarity protection, Output short-circuit protection, Mutual interference prevention, and Reversed output polarity protection |
| Degree Of Protection | IEC, IP67 |
| Material | PBT (polybutylene terephthalate) |
| Weight | Approx. 65 g |
The Omron E3Z-R61 2M Photoelectric Sensor uses retro-reflective sensing with an M.S.R. function across a specified range from 100 mm to 3 m. A 660 nm red LED establishes the optical path toward the reflector, while the NPN output communicates the switching state to compatible industrial control circuitry. The sensor operates from 12 to 24 VDC and consumes up to 30 mA. Light-ON or Dark-ON operation can be selected according to the required control logic, while operate or reset time is specified at 1 ms maximum. A one-turn adjuster supports sensing setup, and the 2 m pre-wired cable provides fixed electrical connection. Ambient-light limits are stated at 3,000 lx for incandescent illumination and 10,000 lx for sunlight. Reversed power-supply polarity, output short-circuit, mutual-interference, and reversed output-polarity protection are specified.
For an Omron retro-reflective sensor requiring NPN output, an M.S.R. function, and 2 m fixed wiring, the relevant model is the E3Z-R61. Operating temperature is stated from -25 to 55°C under the supplied conditions, while storage extends from -40 to 70°C. Operating humidity covers 35% to 85%, and insulation resistance is specified at 20 MΩ minimum at 500 VDC. PBT is listed as the housing material. The 100 mm to 3 m range supports applications where the reflector can be positioned across a moderate sensing distance. For a related E3Z-R61 version with a longer cable and a separately specified 100 mm to 4 m range, see E3Z-R61 5M.
