Omron E3ZM-T61 5M Photoelectric Sensor
Omron E3ZM-T61 5M is a through-beam photoelectric sensor specified for object sensing across a 15 m distance. The sensing system uses the E3ZM-T61-L emitter and E3ZM-T61-D receiver, with an infrared LED establishing the optical path between the two units. The NPN output communicates the switching condition to compatible PLC and machine-control circuitry, while Light-ON and Dark-ON operation supports different control requirements. The sensor operates from 10 to 30 VDC, with the emitter and receiver each consuming up to 20 mA. A 5 m pre-wired cable provides longer electrical routing, and response time is specified at 1 ms maximum. The E3ZM-T61 5M extends fixed wiring within the 15 m through-beam sensor range across Omron Industrial Sensor Products.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3ZM-T61 5M |
Omron E3ZM-T61 5M Photoelectric Sensor - Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Through-beam |
| Shape | Square type |
| Sensing Distance | 15 m |
| Emitter Number | E3ZM-T61-L 5M |
| Receiver Number | E3ZM-T61-D 5M |
| Power Supply Voltage | 10 to 30 VDC |
| Output Configuration | NPN |
| Connection Method | Pre-wired cable length 5m |
| 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 | 150 g |
The Omron E3ZM-T61 5M Photoelectric Sensor provides through-beam sensing across a stated 15 m distance using separate E3ZM-T61-L emitter and E3ZM-T61-D receiver units. An infrared LED establishes the optical path between the two sides, and interruption of that path changes the NPN output state. The sensing units operate from 10 to 30 VDC, with the emitter and receiver each specified at 20 mA maximum current consumption. Light-ON and Dark-ON operation supports alternative switching sequences, while response time is stated at 1 ms maximum. Both units use 5 m pre-wired cables, providing substantially more electrical routing distance than the shorter version. SUS316L is specified for the body, while methacrylate resin is listed for the optical material.
Where an Omron through-beam photoelectric sensor needs NPN switching together with extended cable reach, the relevant model is the E3ZM-T61. Its separate transmitting and receiving units establish the stated 15 m optical path, while the 5 m cables place the termination point farther from the sensing location. The 10 to 30 VDC supply range and 20 mA maximum consumption per unit define the listed electrical requirement. Because the supplied 5 m entry states an infrared LED, that specification is retained rather than replacing it with the red LED value shown for the 2 m version. For a related 15 m NPN through-beam model using an M8 connector instead of fixed cables, see E3ZM-T66.


