Omron E3Z-LR61 2M Photoelectric Sensor
Omron E3Z-LR61 2M is a laser retro-reflective photoelectric sensor with an MSR function for sensing opaque targets from 0.2 to 7 m when used with the E39-R12 reflector. Its 655 nm red laser establishes the optical path between the sensor and reflector, while the NPN open-collector output transfers the switching state to compatible industrial control circuitry. Light-ON or Dark-ON operation can be selected according to the required machine logic. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable. Current consumption is specified at 30 mA maximum, response time at 1 ms maximum, and a one-turn adjuster supports sensitivity setting. Within the E3Z Series, the E3Z-LR61 2M provides long-range NPN sensing within the laser retro-reflective sensor range across Omron Industrial Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-LR61 2M |
Omron E3Z-LR61 2M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective with MSR function |
| Sensing Distance | When using the E39-R12: 0.2 to 7 m |
| Standard Sensing Object | Opaque: 75-mm dia. min. |
| Light Source | Red LD (655 nm), Laser Class 1 |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired 2 M cable |
| Current Consumption | 30 mA max. |
| Control Output | Load power supply voltage: 26.4 VDC max., Load current: 100 mA max., Open collector output |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | Operate or reset: 1 ms max. |
| Sensitivity Adjustment | One-turn adjuster |
| Indicators | Operation indicator (orange), Stability indicator (green) |
| Ambient Illumination | Incandescent lamp: 3,000 lx max. Sunlight: 10,000 lx max. |
| Ambient Temperature Range | Operating: −10 to 55°C, Storage: −25 to 70°C (with no icing or condensation) |
| Ambient Humidity Range | Operating: 35% to 85%, Storage: 35% to 95% (with no icing or 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 | IP67 (IEC 60529) |
| Material | PBT (polybutylene terephthalate), Methacrylic resin |
| Weight | Approx. 120 g |
The Omron E3Z-LR61 2M Photoelectric Sensor uses laser retro-reflective sensing with an MSR function across a range from 0.2 to 7 m when used with the E39-R12 reflector. Its 655 nm red laser establishes the optical path, while the NPN open-collector output supports a load supply voltage up to 26.4 VDC and load current up to 100 mA. Light-ON or Dark-ON operation can be selected according to the required machine logic. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable. Current consumption is specified at 30 mA maximum, response time at 1 ms maximum, and a one-turn adjuster supports sensitivity setting. Orange operation and green stability indicators provide visual operating information.
For an Omron laser retro-reflective sensor requiring NPN output and a sensing distance extending to 7 m, the relevant model is the E3Z-LR61. The stated target size is an opaque object of at least 75 mm diameter when used under the supplied conditions. Ambient-light resistance reaches 3,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -10 to 55°C, while storage covers -25 to 70°C. Reverse supply polarity, output short-circuit, mutual-interference, and reversed-output polarity protection are included. PBT and methacrylic resin are listed as construction materials. Its specification also matches searches for an Omron 7 m laser sensor and Omron NPN retro-reflective sensor. For the PNP version with the same 0.2 to 7 m range and 2 m cable, see the E3Z-LR81 2M.
