Main benefits

Axle speed measuring device with long service history
Unparalleled accuracy and reliability
Easy to integrate
Suitable for SIL-certified functions
Designed for use in harsh environments and with strong vibrations
Expert customer support team

Pulse Generators are converting an axle’s rotational motion into an electrical signal, which can be used to measure and record speed and distance, sense wheel slip and slide, and for different control and safety functions. Optical Pulse generators are inherently safe, and are suitable for use in SIL4 systems. HaslerRail’s Optical Pulse Generator is also designed to withstand extreme thermal and mechanical stress.

Our pulse generators are built on an optical system that operates in the infrared range. It is possible to have two different frequencies per revolution and up to six electrically-isolated sensors. And, because they offer unparalleled accuracy and reliability, our pulse generators can be used in ETCS and other signalling applications.

Product Description

  • Power supply: U_ = 15 VDC nominal (10 … 30 VDC), others available
  • Signal outputs: Push-pull, open drain, 7-16mA current, others available
  • Number of channels: 1 … 6 electrically isolated
  • Phase shift: 90°, 120°, others available
  • Number of pulses: 1 … 400 or special codes
  • Output frequency: 0 … 6 kHz (0 … 10 kHz for push-pull)
  • Protection degree: IP68 and IP69
  • Operating temperature: -40°C … +70°C
  • Weight (order of magnituted): 2 … 7 kg
  • Different mechanical sizes and adapters available
  • Duty cycle: 50 % nominal
  • Standards: EN 50155