Pro-Range CLJ-A8-2ANA NPN Inductive Proximity Sensor - M8 Thread, 2mm Detection

The CLJ-A8-2ANA typically operates on a DC supply voltage ranging from 6V to 36V. It is crucial to connect the brown wire to the positive supply and the blue wire to the negative (common) to utilize the built-in reverse polarity protection. Always ensure your power source can provide sufficient current for the sensor's internal circuit and the load connected to the output.

For an NPN (sinking) output, the black wire is the signal output. Connect the brown wire to your DC positive supply (e.g., 24V), the blue wire to DC negative (0V/GND). Connect the black output wire to your PLC digital input or microcontroller GPIO pin. The PLC/microcontroller input must be configured to source current (i.e., have a pull-up resistor to positive) because the NPN transistor will sink current to ground when active, pulling the input line low.

No, the CLJ-A8-2ANA is specifically tuned for ferrous metals like iron and steel. Inductive sensors have a reduced sensing factor (Sn) for non-ferrous metals like aluminum or copper, typically requiring the target to be much closer than the rated 2mm distance. For reliable detection of non-ferrous metals, a capacitive or specialized inductive sensor with an appropriate correction factor should be selected.

Insert the sensor's M8 threaded barrel through a pre-drilled 8mm hole in your mounting bracket or machine frame. Secure it from the back using the supplied M8 lock nut. Ensure the sensing face is flush with or slightly recessed from the mounting surface for optimal performance. Avoid mounting the sensor directly against or too close to other large metal masses, as this can reduce the effective sensing distance.