Omron E3FA-RP11 Retro-Reflective Photoelectric Sensor, PNP Open-Collector, 0.1-4m Range, 12-24VDC, IP67/IP69K, 2m Cable

Light-ON mode means the sensor's output transistor turns ON (conducts) when the reflected light beam is received. Dark-ON mode means the output turns ON when the beam is blocked. The mode is typically selected via a wiring configuration or a switch on the sensor body, allowing you to choose the logic that best fits your control system's input requirements.

Yes, the polarized design of the E3FA-RP11 is specifically engineered to detect objects on reflective surfaces. The polarization filter helps reject stray reflections from shiny backgrounds, making it reliable for detecting transparent materials like glass or glossy plastic, provided a compatible retro-reflector is used on the opposite side.

The PNP open-collector output is typically rated for a maximum load current of 100 mA. It is designed to directly interface with PLC digital inputs or relay coils. Always ensure the connected load does not exceed the sensor's specified current and voltage ratings to prevent damage.

The cable on the E3FA-RP11 model is fixed and integrated into the housing, providing a sealed connection that maintains the IP67/IP69K rating. For applications requiring a different cable length or connector type, you would need to select a different variant from the E3FA series.

Alignment is straightforward using the bright red LED indicator. Point the sensor towards the retro-reflector and adjust until the indicator lights steadily. The sensing range is fixed by the optics but can be fine-tuned within the 0.1 to 4-meter window by adjusting the sensor's sensitivity potentiometer, if available, or by physically aligning it closer or farther from the reflector.