Pro-Range RM12 2mm NPN Inductive Proximity Sensor M12 Thread Shielded - DC 6-36V

A shielded (flush-mount) sensor, like the RM12, has a metallic ring around its sensing face that contains the magnetic field. This allows it to be installed flush with or embedded in a metal mounting bracket without affecting its performance, and enables side-by-side installation with minimal interference. An unshielded sensor requires a clearance zone around its face for proper field projection.

This inductive sensor is designed to detect all conductive metals, including steel, aluminum, copper, and brass. However, the effective sensing distance can vary slightly depending on the target material's conductivity and permeability; ferrous metals (like steel) are typically detected at the full nominal 2mm range, while non-ferrous metals may have a slightly reduced sensing distance.

Connect the brown wire to your positive DC supply voltage (6-36V), the blue wire to the DC common (0V/GND), and the black wire as the switched output. In an NPN configuration, the black wire sinks current to ground when a target is detected. Connect the black wire to your PLC's digital input, which should be internally pulled high to the PLC's supply voltage (e.g., 24V) through a resistor.

While not explicitly stated in the core specs, typical inductive sensors in this class offer a high switching frequency, often in the range of 500 Hz to 1 kHz, corresponding to response times of 1-2 ms. This makes it suitable for high-speed counting and position detection applications on fast-moving production lines.

Yes, the IP67 rating certifies that the sensor is protected against temporary immersion in water (up to 1 meter for 30 minutes) and is completely dust-tight. This makes it suitable for use in damp environments, occasional washdowns, or outdoor applications where it is protected from direct, high-pressure water jets (which would require an IP69K rating).