Pro-Range CCJ-A18M-5APA Capacitive Proximity Sensor - PNP Output, M18 Thread, 5mm Detection

This capacitive proximity sensor is designed to detect non-metallic materials such as plastics, glass, wood, cardboard, liquids, and granular powders. It works by sensing changes in dielectric constant, making it unsuitable for detecting metals, which are better sensed by inductive proximity sensors.

Wire the brown wire to your DC power supply positive (10-30V), the blue wire to the DC common negative, and the black wire (PNP output) to your PLC's digital input. The PLC input must be configured as a sink input (connected to common via a pull-down resistor) to read the sourcing signal from the sensor's black wire.

Yes, this sensor features a built-in sensitivity adjustment potentiometer, typically accessed via a small screw on the side or end of the housing. Turning it allows you to fine-tune the detection distance and optimize performance for specific target materials or to avoid false triggers from background objects.

The sensor operates from 10 to 30 Volts DC. It includes built-in reverse polarity protection, preventing damage if the power wires are accidentally connected backwards, and short-circuit protection on the output transistor to safeguard against wiring faults.