Omron E3Z-LL68 Photoelectric Sensor
Omron E3Z-LL68 is a distance-settable photoelectric sensor using background suppression across a specified 25 to 300 mm sensing range. Its 655 nm red laser provides a defined optical point, while the BGS principle helps distinguish the intended target from surfaces positioned beyond the selected sensing position. The NPN open-collector output communicates the switching state to compatible machine-control circuitry, while Light-ON or Dark-ON operation can be selected according to the required logic. The sensor operates from 12 to 24 VDC and uses a 4-pin M8 connector for electrical integration. Current consumption is specified at 30 mA maximum, while response time is 0.5 ms maximum. Within the E3Z Series, the E3Z-LL68 provides fast adjustable sensing within the distance-settable laser sensor range across Omron Industrial Products.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-LL68 |
Omron E3Z-LL68 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Distance-settable (BGS Models) |
| Sensing Distance | 25 to 300 mm |
| Light Source | Red LD (655 nm), Laser Class 1 |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Connector (M8, 4 pins) |
| 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: 0.5 ms max. |
| Sensitivity Adjustment | Five-turn endless 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), Modified polyarylate resin |
| Weight | Approx. 20 g |
The Omron E3Z-LL68 Photoelectric Sensor uses distance-settable background-suppression sensing across a specified 25 to 300 mm range. Its 655 nm red laser creates a defined optical point, while the BGS principle helps separate the intended target from surfaces positioned beyond the selected sensing position. The NPN open-collector output supports a load supply voltage up to 26.4 VDC and a load current up to 100 mA. Light-ON or Dark-ON operation can be selected according to the required control logic. The sensor operates from 12 to 24 VDC and uses a 4-pin M8 connector. Current consumption is specified at 30 mA maximum, response time at 0.5 ms maximum, and a five-turn endless adjuster supports accurate setting.
For an Omron background-suppression laser sensor requiring NPN output and a faster 0.5 ms response, the relevant model is the E3Z-LL68. Ambient-light resistance reaches 3,000 lx under incandescent light and 10,000 lx under sunlight. Operating temperature extends from -10 to 55°C, with storage from -25 to 70°C without icing or condensation. Reverse supply polarity, output short-circuit, mutual-interference, and reversed-output polarity protection are included. PBT and modified polyarylate resin are listed as materials. The adjustable 25 to 300 mm range supports target separation from background surfaces across a broader working area. Its specification also matches searches for an Omron high-speed laser sensor and Omron NPN BGS sensor. For another M8-connected NPN BGS model with a 20 to 300 mm range, see the E3Z-LL66.
