E3F-DS10C4 NPN Photoelectric Proximity Switch Sensor – Normally Open User’s Guide
Overview
The E3F‑DS10C4 is a cylindrical photoelectric sensor designed for non‑contact object detection. It uses infrared light to sense targets and provides an NPN output, Normally Open (NO) configuration. This means the output is inactive until an object is detected, at which point the circuit closes and the output becomes active.
Specifications
- Model: E3F‑DS10C4
- Type: Photoelectric proximity switch
- Output: NPN, Normally Open
- Sensing distance: ~10 cm (depending on target surface)
- Supply voltage: 6–36 V DC
- Wiring: 3‑wire (Brown = V+, Blue = GND, Black = Output)
- Body: Cylindrical, threaded, with adjustable sensitivity ring
Wiring Guide
Note: Since it’s NPN NO, the black wire is normally open (no current flow). When an object is detected, the black wire is pulled low (to ground).
Installation
- Mounting: Secure the sensor using the threaded body and a bracket.
- Alignment: Aim the purple lens toward the detection zone.
- Wiring: Connect wires to your PLC, Arduino, or relay module as per the table above.
- Adjustment: Rotate the black sensitivity ring to fine‑tune detection distance.
Operation
- No object detected → Output is open (inactive).
- Object detected → Output closes, pulling the black wire low (active).
- Use a pull‑up resistor or controller input to read the signal correctly.
Applications
- Object detection in conveyor systems
- Position sensing in automated machinery
- Counting and sorting systems
- DIY robotics and automation projects
Safety Notes
- Supply voltage must not exceed 30 V DC.
- Avoid reflective surfaces that may cause false triggers.
- Insulate exposed wires to prevent shorts.
- Test sensor response before integrating into critical systems.