The Noris FA2H Speed Sensor Series are primarily designed for speed sensing. The rotation of ferromagnetic toothed wheels is sensed by means of a differential Hall-effect sensor chip and 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.
Features
High-grade speed pick-up with rectangular-pulse output signal
For use in conjunction with ferromagnetic toothed wheels from module m2 up
Frequency range from < 0.2 Hz to 20,000 Hz
Senses very low speeds (near-zero-speeds) with wide pulse distance
Unaffected by out-of-true errors, vibrations, and electric motor magnet fields
Open-collector NPN- or PNP-output, to be combined as push-pull output stage
Loadable with 50 mA SINK and 50 mA LOAD
Mounting position direction-sensitive
Highest EMI immunity for extremely severe electrical environments
Wide operating temperature range from -25°C ... +100°C
Elevated pole-piece temperature up to +145°C (+175°C for short time)
Pick-up pole-piece is metal-enclosed
Rugged construction, IP68 case tested for pressure-tightness at 5 bar
Choice of lengths, screw-in threads, and electrical terminations.
