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Bruel & Kjaer 4447


B&K 4447


B&K 4447 Human Vibration Analyser £ 28 a day *

A portable system for acquisition, measurement and evaluation of human vibration.

The B&K 4447 is designed to meet the requirements of those who wish to monitor and reduce the exposure of human operators to the harmful influences of HAVS, VWF and whole body vibration - in 3-axis simultaneously.
  • Uses
  • Hand-arm vibration measurements (2 to 1250 Hz)
  • Whole-body vibration measurements (1 to 80 Hz)
  • Low-frequency whole-body vibration measurements down to 0.4Hz
  • Linear mode (0.4 to 1250 Hz) for calibration
  • Features:
  • Compact, stand-alone instrument with an internal power source
  • Versatile graphics display for setup of the instrument and display of results
  • Only four buttons to control the instrument's functions -ideal for field-work
  • All the necessary data is displayed for instant assessment of exposure to vibration
  • Very few cables (only one cable connection to a transducer in basic setup)
  • USB connection to a computer for post-processing and archiving
  • Risk assessment following the good practice guide for human vibration
Using the B&K 4447, measurements are easily made and the parameters required by EU Directive 2002/44/EC are calculated


The Human Vibration Measuring Kit Type 4447 includes the following items:
3 + 1 Channel Human Vibration Analyzer
Triaxial Accelerometer Type 4524-B
Adaptors for hand, arm, and direct mounting of an accelerometer
Power supply and charger
USB connection cable
Software for the download of measurements and calculation of daily exposures for 1, 4, and 8 hour periods
User manual
Carrying Case
Calibration Certificates.

Manufacturer's Specifications 		 

A B&K 4294 Vibration Calibrator is recommended for on-site calibration.

If you also need to make whole body measurements order a Seat Pad Accelerometer as well.

B&K 4515B-002 Tri-axial Seat Pad Accelerometer £ 10 a day *



* Our standard hire charges are based on a 7-day minimum period. Click here for details and other options.

Gracey & Associates   01933 624212
BSI approved for the hire of noise & vibration instruments
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B&K Help Line - 01438 739 000 or visit their website