Scantek Inc  //  Products  //  Tapping Machines and Sound Sources  //  Tapping Machines Norsonic Nor 277 Tapping Machines

Norsonic Nor277 Tapping Machine




Nor277 DataSheet


Self calibrating!

For making footfall noise transmission measurements in buildings as set out in International and National Standards


  • Impact sound transmission testing according to ISO 140 part VI, VII, and VIII, ASTM E-492, and ASTM E-1007
  • Determination of single number quantity index Ln,w, in accordance with ISO 717-2 and ASTM E-989
  • Remote operation from hand switch or PC
  • Mains or battery operation
  • Powered from 85-264 volt AC main supply. Built in Lithium Ion rechargeable batteries
    • Battery capacity: Typical 1 hour with intermittent use and 45 minutes of continues operation  
    • Battery de-rating: <5% loss in capacity per 100 discharge/charge cycles
    • Charging time: 2 hours
  • Compact 
  • Low weight 10 kg (22 lb) incl. battery and wireless remote option
  • Rugged construction
  • Five hammers each having a mass of 500 g falling from a height of 40 mm (adjustable)
  • Tapping sequence of 10 impacts per second, rpm controlled via servo feedback loop
  • Built in self check of hammer fall speed and tapping sequence
  • Retractable feet
  • Dimensions feet retracted: 165 x 230 x 495 mm (6,5 x 9,1 x 19,5")
  • Dimensions feet extended: 265 x 230 x 495 mm (10,4 x 9,1 x 19,5")


Email Newsletter icon, E-mail Newsletter icon, Email List icon, E-mail List icon Sign up for our Email Newsletter

Tapping Machines and Sound Sources