Noris FA5HZ Speed Sensor

The Noris FA5HZ Speed Sensor is designed for speed sensing. The FA5HZ senses the rotation of ferromagnetic toothed wheels by means of a differential Hall-effect sensor chip, and is converted by a signal amplifier into a rectangular signal. The frequency of the rectangular signal is proportional to the speed. Apart from speed, the pick-ups are adapted to sense any movement of ferromagnetic parts. The rectangular signal lends itself to evaluation or transformation by a variety of devices.

A second sensor system is integrated to detect the direction of rotation. The two systems are arranged mechanically in the sensor head such that a 90° phase offset is obtained in module M2 between the output signals. The rectangular signal lends itself to evaluation or transformation by a variety of devices.



Features

• For rigorous conditions in rail transport, shipbuilding, and industry
• High-grade speed pick-up with rectangular-pulse signal output
• Two scanning systems with signals 90° offset to detect speed and  direction of rotation (in module M2)
• For use in conjunction with ferromagnetic toothed wheels from module m1.5 up
• Frequency range from < 0.1 Hz to 20,000 Hz
• Senses very low speeds  (near-zero-speeds) with wide pulse spacing
• Unaffected by out-of-true errors, vibrations  and electric motor magnet fi elds
• Push-pull output stage
• Loadable with 50 mA SINK and 20 mA LOAD
• Mounting position is direction-sensitive
• High degree of EMI immunity for severe electrical environments
• Wide operating temperature range from -40 °C ... +100 °C
• Pole-piece is metal-enclosed
• Rugged construction, IP68 case tested for pressure-tightness at 5 bar
• Optionally, cables with protective function

• Tachogenerators
• Temperature Sensors
• Pressure Transmitters
• Amplifiers