Pro-Range CCJ-A12-5ANB Capacitive Proximity Sensor - NPN Output, M12 Thread, 5mm Detection

The sensor is designed for a typical DC supply voltage range of 10-30V. It is crucial to stay within these limits to ensure proper operation and avoid damage. Always verify the polarity, as the unit includes protection but is intended for correct NPN wiring.

Connect the brown wire to the positive DC supply (10-30V), the blue wire to the negative/common (0V), and the black wire to the PLC's digital input. The NPN output acts as a switch to ground, so the PLC input should be configured for a sinking (NPN) signal, typically by connecting its internal pull-up resistor to +24V.

Yes, capacitive sensors like the CCJ-A12-5ANB can detect liquids and other non-metals through non-conductive barriers. The sensitivity adjustment potentiometer allows you to tune the sensing field to reliably detect the material through a specific container thickness, optimizing it for your application.

This capacitive sensor can detect virtually any material that affects an electrostatic field, including plastics, glass, wood, paper, ceramics, and liquids like water, oils, and chemicals. It is particularly useful for applications where standard inductive sensors (which only detect metals) are not suitable.