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ADVANTAGES OF SAFDY SYSTEMS

  • Intrinsically safe for use in coalmines
  • Linear Output
  • Highly accurate
  • Wide turn-down ratio
  • Rapid response
  • Excellent repeatability
  • Highly reliable
  • Rugged construction
  • Low lifecycle cost
  • No moving parts
  • No calibration
  • Highly producible
Construction
  • Solid-state design airflow sensor
  • Measures airflow using the VORTEX method
  • Vortex method is a proven way to measure the airflow very accurately
  • Vortex method is independant of small particles present in the air stream - like water droplets
  • The airflow sensor is housed in a stainless steel box
  • The lifespan of the airflow detector can be in excess of ten years.

Advantageous characteristics
  • Airflow speed maximum range of 40m/s or 144 km/hour
  • Linear output proportional to airspeed
  • Highly accurate, dependant on the width of the "accentuatar" bar
  • Calibration is a function of the width of the bar
  • Rapid response of change of airflow
  • Excellent repeatability inherent to the vortex principles
  • Very low lifecycle costs due to no moving parts
  • Insensitive to small particles, dust or waterdroplets in the airstream
  • Internal DIL switch for different ranges of airspeed
  • Output is a standard 4-20mA

Tel/fax: +27 12 8042097
safdy@telkomsa.net