Measure Airflow Bi-directionally

Northern Light Digital™ Airflow Metering measures the velocity and direction of airflow across a drift or tunnel using ultrasonic waves. Ultrasonic waves are sent back-and-forth, diagonally across the drift or tunnel. The Airflow sensors measure the time-of-flight of the ultrasonic waves to determine airflow.

Features and benefits

  • Reduce costs associated to ventilation surveys by upgrading to automated monitoring
  • Increase accuracy of airflow readings
  • Interface to PLC
  • Back-lit hand-held programmer with LED display
  • Adjustable mounting brackets
  • Adaptable for use on exhaust, fresh ,booster fans and air ducts
  • Install control unit up to 300 metres from ultrasonic sensors Active ultrasonic sensors unaffected by short-circuit in cabling

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Northern Light Digital™
Cap Lamp Systems
Northern Light®