Magnetic Field Sensor – for pneumatic cylinders (magneticfield immune)

Features

• •Rectangular, height 34 mm
• •Metal, GD-Zn
• •Magnetic-inductive sensor
• •Weld resistant to AC fields of 50…60 Hz
• •DC 3-wire, 10…30 VDC
• •NO contact, PNP output
• •Male connector, M12 x 1

Functional principle

Magnetic field sensors are activated by magnetic fields and are used, in particular, for the detection of the piston position in pneumatic cylinders. As magnetic fields can permeate non-magnetizable metals, they detect a permanent magnet attached to the piston through the aluminium cylinder wall. Weld-field immune permaprox sensors "freeze" the switching status when detecting a magnetic AC field (50…60 Hz). In this way, false switching operations are prevented during the welding process. When the AC field disappears, the sensors resume standard operation.