Omron E3ZM-R66 Photoelectric Sensor
Omron E3ZM-R66 is a retro-reflective photoelectric sensor with an M.S.R. function and supplied sensing values of 4 m [100 mm] and 3 m [100 mm]. Its 870 nm infrared LED provides the optical source, while the PNP output communicates the switching state to compatible machine-control inputs. Light-ON or Dark-ON operation can be selected with the switch, and a one-turn adjuster supports setup. The sensor operates from 10 to 30 VDC, consumes up to 25 mA, and uses an M8 4-pin connector for electrical integration. Response time is specified at 1 ms maximum. Within the E3ZM Series, the E3ZM-R66 provides connector wiring within the MSR retro-reflective sensor range across Omron Automation Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3ZM-R66 |
Omron E3ZM-R66 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retroreflective (with M.S.R. function) |
| Sensing Distance | 4 m [100 mm], 3 m [100 mm] |
| Standard Sensing Object | Opaque: 75 mm dia. min. |
| Light Source | Infrared LED (870 nm) |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | PNP |
| Connection Method | Connector type (M8, 4 pins) |
| Current Consumption | 25 mA max. |
| Control Output | Load power supply voltage: 30 VDC max., Load current: 100 mA max. (Residual voltage: 2 V max.) |
| Operation Mode | Light-ON/Dark-ON switch |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Indicators | Operation indicator (yellow), Stability indicator (green) (Emitter has only power supply indicator (green).) |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight 10,000 lx max. |
| Ambient Temperature Range | Operating: -25°C to 55°C, Storage: -40°C 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 | 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, DIN 40050-9: IP69K |
| Material | SUS316, Methacrylic resin, PES (polyether sulfone), PEEK (polyether ether ketone), Fluoro rubber |
| Weight | Approx. 40 g |
The Omron E3ZM-R66 Photoelectric Sensor uses retro-reflective sensing with an M.S.R. function and supplied sensing values of 4 m [100 mm] and 3 m [100 mm]. An 870 nm infrared LED provides the optical source, while the PNP output communicates the switching condition to compatible industrial control circuitry. The sensor operates from 10 to 30 VDC and consumes up to 25 mA. Load supply voltage is specified up to 30 VDC with load current up to 100 mA and residual voltage of 2 V maximum. A Light-ON or Dark-ON switch selects the output behavior, while operate or reset time is 1 ms maximum. A one-turn adjuster supports setup, and the M8 4-pin connector provides a detachable electrical interface. Yellow operation and green stability indicators provide visual status information.
For an Omron MSR retro-reflective sensor requiring PNP output and connector wiring, the relevant model is the E3ZM-R66. Operating temperature is specified from -25 to 55°C, with storage from -40 to 70°C. Reversed power-supply polarity protection, output short-circuit protection, mutual-interference prevention, and reversed output-polarity protection are listed. SUS316, methacrylic resin, PES, PEEK, and fluoro rubber are among the supplied materials. Because the source provides two bracketed sensing values rather than one simplified distance, those figures are retained as stated. For a related pre-wired PNP model using 2 m cable connection, see E3ZM-R81 2M.
