Omron E3ZM-T66 Through-beam Photoelectric Sensor
Omron E3ZM-T66 is a connector-type through-beam photoelectric sensor designed for object sensing across a specified distance of 15 m. The sensing arrangement uses the E3ZM-T66-L emitter and E3ZM-T66-D receiver, with an infrared LED establishing the optical path between them. The NPN output communicates the switching state to compatible industrial control inputs, while Light-ON and Dark-ON operation provides alternative switching logic. The sensor operates from 10 to 30 VDC and uses an M8 connector for electrical integration. The emitter and receiver each consume up to 20 mA, while response time is specified at 1 ms maximum. Within the E3ZM Series, the E3ZM-T66 provides removable wiring within the 15 m NPN through-beam sensor range across Omron Industrial Sensors.
| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3ZM-T66 |
Omron E3ZM-T66 Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Square type |
| Sensing Distance | 15 m |
| Emitter Number | E3ZM-T66-L |
| Receiver Number | E3ZM-T66-D |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | NPN |
| Connection Method | M8 connector models |
| Current Consumption | Emitter: 20 mA max. Receiver: 20 mA max. |
| Light Source (Wavelength) | Infrared LED |
| Operation Mode | Light-ON/Dark-ON |
| Response Time | 1 ms max. |
| Degree Of Protection | IP67 |
| Material | SUS316L |
| Material Lens | Methacrylate resin |
| Weight | 60 g |
The Omron E3ZM-T66 Photoelectric Sensor uses separate E3ZM-T66-L emitter and E3ZM-T66-D receiver units to establish a through-beam sensing path across 15 m. An infrared LED provides the optical source, while interruption of the beam changes the NPN output communicated to compatible industrial control inputs. The sensor operates from 10 to 30 VDC, and each sensing unit consumes up to 20 mA. Light-ON and Dark-ON operation supports alternative machine-control sequences, while response time is specified at 1 ms maximum. An M8 connector provides the electrical interface, replacing the permanent cable arrangement used on the T61 versions. The square body is specified in SUS316L, and methacrylate resin is listed as the optical material. The supplied configuration therefore combines long-range optical sensing with removable machine-side wiring.
For an Omron NPN through-beam sensor requiring 15 m sensing and connector-based installation, the relevant model is the E3ZM-T66. Its M8 connection allows machine wiring to remain in place when the sensor is disconnected, which distinguishes it from the pre-wired T61 alternatives. The 10 to 30 VDC operating range and 20 mA maximum current for each optical unit define the electrical requirement provided in the source. A 1 ms response supports quick state changes as objects cross the optical path. The infrared light source and separate emitter-receiver arrangement establish the supplied long-range sensing configuration. For a related pre-wired NPN version using 2 m cables, see E3ZM-T61 2M.
