Omron E3Z-L68 Photoelectric Sensor
Omron E3Z-L68 is a limited-reflective photoelectric sensor designed for target sensing across a specified 20 to 200 mm working range. Its 670 nm red LED supplies the optical source, while the limited-reflective arrangement establishes a defined sensing region from light returned by the target. The NPN output transfers the switching state to compatible industrial control equipment, while Light-ON or Dark-ON operation can be selected according to the required logic. 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 response time is 1 ms maximum. Within the E3Z Series, the E3Z-L68 provides a 20 to 200 mm option within the limited-reflective sensor range across Omron Sensor Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-L68 |
Omron E3Z-L68 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Limited-reflective |
| Shape | Square type |
| Sensing Distance | 20 to 200 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable, 2m Length |
| Current Consumption | 30 mA max. |
| Light Source (Wavelength) | Red LED (670 nm) |
| Operation Mode | Light-ON/Dark-ON selectable |
| Response Time | 1 ms max. |
| Degree Of Protection | IEC: IP67 |
| Material | Polybutylene terephthalate (PBT) |
| Material Lens | Denatured Polyarylate |
| Features | Transparent detection |
| Weight | 65g |
The Omron E3Z-L68 Photoelectric Sensor uses limited-reflective sensing across a specified 20 to 200 mm working range. Its 670 nm red LED directs light toward the target, while the limited-reflective optical arrangement establishes the switching state from light returned within the defined sensing region. The NPN output communicates this state to compatible industrial control equipment, while selectable Light-ON and Dark-ON operation supports different machine requirements. The sensor operates from 12 to 24 VDC and includes a 2 m pre-wired cable. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. Its square housing uses PBT and denatured polyarylate materials, supporting compact installation in industrial equipment.
For an Omron limited-reflective sensor requiring NPN output and a 20 to 200 mm working range, the applicable model is the E3Z-L68. The defined sensing region is useful where the target needs to be sensed within a controlled near-field area rather than over a long optical path. Selectable switching behavior supports different machine sequences, while the 12 to 24 VDC operating range suits common DC control systems. The supplied specification states IP67 enclosure protection. This configuration also matches searches for an Omron 200 mm photoelectric sensor and Omron limited-reflective NPN sensor. The 2 m fixed cable provides direct connection to compatible control equipment. For a shorter limited-reflective E3Z model using a 30 ±20 mm working zone, see the E3Z-L63 2M.


