Bankemaskin Nor277

Nor277 bankemaskin for å gjøre trinnlydsmålinger i bygninger som er fastsatt i internasjonale og nasjonale standarder.

Egenkalibrering – sjekk av fallhastigheten på hammerene.

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″)

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