Pro-Range CCJ-A18M-5ANB Capacitive Proximity Sensor NPN M18 Thread Detection Distance 5mm

This sensor has an NPN (sinking) output. The brown wire is typically connected to the positive supply voltage (10-30V DC), the blue wire to ground, and the black wire is the output signal. When a target is detected, the black wire switches to ground (low signal), which can be read by a PLC input or controller.

While capacitive sensors are primarily designed for non-metallic materials like plastic, glass, liquids, and powders, they can detect metallic objects if they are large enough to cause a sufficient change in capacitance. For reliable metal detection, an inductive proximity sensor is generally recommended.

The sensor features a built-in potentiometer, usually accessed via a small screw on the side of the housing. Turning this potentiometer adjusts the detection threshold. For optimal performance, place the target object at the desired detection point and adjust the potentiometer until the indicator LED just turns on.

The sensor is designed for a standard 10-30V DC supply. It includes built-in protection against reverse polarity connection (polarity protection) and output short-circuits, which helps prevent damage during installation or in the event of wiring faults.

Yes, M18 x 1mm is a standard metric thread. The sensor is mounted by threading it directly into a pre-tapped M18 hole in a machine bracket or panel. A lock nut is often used on the thread to secure the sensor's position and orientation once adjusted.