Omron E3Z-B61 5M Photoelectric Sensor
Omron E3Z-B61 5M is a retro-reflective photoelectric sensor without the MSR function, specified for clear plastic bottle sensing across an 80 to 500 mm range. A 660 nm red LED provides the optical source, while the NPN output communicates the resulting switching state to compatible control equipment. Selectable Light-ON and Dark-ON operation supports different machine-control requirements. The sensor operates from 12 to 24 VDC and includes a 5 m pre-wired cable for installations requiring additional wiring length. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. Within the E3Z Series, the E3Z-B61 5M provides the extended-cable configuration. Related transparent object photoelectric sensors are available across the Omron Sensor Range.

| Brand | Omron |
| Product | Photoelectric Sensors |
| Model Number | E3Z-B61 5M |
Omron E3Z-B61 5M Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Sensing Method | Retro-reflective without M.S.R. function |
| Shape | Square |
| Sensing Distance | 80 to 500 mm |
| Power Supply Voltage | 12 to 24 VDC |
| Output Configuration | NPN |
| Connection Method | Pre Wired Cable, 5M Length |
| Current Consumption | 30 mA Max |
| Light Source (Wavelength) | Red LED (660 nm) |
| Operation Mode | Light-ON/Dark-ON |
| 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-B61 5M Photoelectric Sensor uses retro-reflective sensing without the MSR function for clear plastic bottle sensing across an 80 to 500 mm range. Its 660 nm red LED provides the optical source, while the NPN output transfers the switching state to compatible industrial control equipment. Selectable Light-ON and Dark-ON operation allows the output logic to match the machine requirement. The sensor operates from 12 to 24 VDC and includes a 5 m pre-wired cable for installations requiring additional wiring length. Current consumption is specified at 30 mA maximum, while response time is 1 ms maximum. PBT and denatured polyarylate are listed as construction materials, and the supplied specification states IP67 protection.
For an Omron transparent object sensor requiring NPN output and a longer fixed cable, the applicable model is the E3Z-B61. Its listed 80 to 500 mm range supports reflector-based sensing of clear plastic bottles within the stated working zone. Light-ON or Dark-ON switching provides flexibility for different control sequences, while the 12 to 24 VDC supply supports common industrial control systems. Search terms such as Omron clear bottle photoelectric sensor and Omron 5 m retro-reflective sensor also match this configuration. For the related B61 version using a shorter 2 m pre-wired cable, see the E3Z-B61 2M. Both supplied variants share the same sensing method, output type, operating voltage, and stated 80 to 500 mm range.


