Pro-Range CZJ-A12M-4ANB Inductive Proximity Sensor, 4mm Detection, NPN Output, M12 Thread

The Pro-Range CZJ-A12M-4ANB typically operates on a DC supply voltage ranging from 6V to 36V. Always verify the specific wiring diagram, connecting the brown wire to positive voltage (+V), the blue wire to common ground (0V), and the black wire as the switched NPN output signal to your PLC or controller input.

No, this is an inductive proximity sensor, which operates on the principle of electromagnetic induction. It can only detect conductive metals, such as steel, aluminum, copper, and brass. Non-conductive materials like plastic, wood, glass, or ceramics will not be detected.

NPN (sinking) and PNP (sourcing) describe the transistor switching type inside the sensor. This model has an NPN output, meaning the black signal wire acts as a switch to ground (0V). To interface it, connect the black wire to your PLC's digital input, which should have an internal pull-up resistor to the positive supply. The sensor sinks current to ground when activated, pulling the input low.

For optimal performance, mount the sensor using a standard M12 locknut on a flat panel. Ensure the sensing face is flush and unobstructed. The sensing distance is rated for a standard target (a 1mm thick square of mild steel). For non-standard targets, the effective sensing distance may be reduced and should be tested empirically.