Ferrous Metal Hall Proximity Sensors

Standex Electronics' ferrous metal Hall sensors are a family of non-contacting proximity sensors that deliver repeatable large gap detection of ferrous metal targets reliably through air, aluminum, and any other non-ferrous material with longevity. Hall effect technology sensors are wear-free solid-state designs packaged in a compact and robust housing. Stable operation over a wide temperature range, internal hysteresis, and bounce-free operations are some of the numerous features users can expect with ferromagnetic metal detection sensors. These ferrous proximity sensors come in a variety of electrical options, including analog or digital 0 V to 5 V output with regulated input, 5 V input, PNP output, and many other configurations.

The digital output metal detector sensors detect steel targets at 0.375” and turn on when nearby ferrous metal is detected, producing a low output signal. In the case of PNP output, the signal would go high when the sensor turns on. Analog ferrous metal position sensors detect a 0.4” gap and signal an increase in output of 4.5 V as the ferrous metal approaches. As the target moves away from the sensor, the output decreases to 0.5 V. In other words, the analog output is proportional to the ferrous metal proximity.

Other ferrous metal-detecting proximity sensors are available and can be customized in various electrical options. Many housing and connection options are available, including but not limited to, molded, aluminum, stainless steel, threaded, flange mount, and user-specific packages. Additional connection types include integral connectors, Deutsch, Amphenol, pigtails, and free-end wires, any length. Typical applications include monitoring the position, proximity, or alignment of steel components in automotive, heavy, and agricultural equipment and inspecting for ferrous targets below the surface of assemblies in manufacturing and industrial applications.