Pro-Range CRJ-A12M-3APB Capacitive Proximity Sensor PNP M12 Thread - 3mm Detection

This capacitive proximity sensor is designed to detect non-metallic objects such as plastics, glass, liquids, wood, and powders. It works by sensing changes in dielectric constant, unlike inductive sensors which only detect metals. It is ideal for level sensing in plastic tanks or detecting packaged goods on a conveyor.

The PNP (sourcing) output provides a positive voltage signal when activated. Connect the brown wire to your DC power supply positive (10-30V DC), the blue wire to negative/common, and the black wire to your PLC digital input. The PLC input must be configured to accept a sourcing signal. Ensure the sensor load (PLC input) is connected between the black wire and ground.

Yes, the sensor features an integrated sensitivity adjustment potentiometer. Use a small screwdriver to turn the potentiometer, typically located on the back or side of the housing. Adjust it while the target object is present to set the optimal detection point, minimizing false triggers from background material or container walls.

The sensor operates from a 10-30V DC power supply. The current consumption is typically below 15mA without load. The output can switch a load of up to 200mA. The built-in reverse polarity protection safeguards the sensor if power wires are accidentally connected incorrectly.

Yes, with its IP67 protection rating, the sensor is sealed against dust ingress and can withstand temporary immersion in water up to 1 meter for 30 minutes. The nickel-plated brass M12 housing provides corrosion resistance, making it suitable for washdown areas in food processing or dusty conditions in industrial plants.