System information

Blastware Compliance Module
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4–44 Blastware Operator Manual
v VDV (Optional – with Advanced Software Module)
The optional Vibration Dose Value (VDV) Record Mode is available with the purchase of the
Blastware Advanced Module software. If you have a licensed copy of the Blastware Advanced
Module, follow the instructions in the Blastware Operator Manual for Reloading the
Operating System of the Minimate Pro, which will load the VDV feature into the unit. To order
your copy of the Blastware Advanced Module, please contact your Instantel Dealer
Representative.
The VDV monitoring option is used to measure and determine whole-body vibration based on a
Frequency Weighting file that is downloaded from Blastware. Your geographic location and the
type of vibration that you are monitoring will determine which Frequency Weighting file that
you choose to use during the monitoring session – the frequency range of the data collected is
from 1 to 80 Hz. Two frequency weighting files may be downloaded to the monitor, which can
then be assigned to daytime or nighttime monitoring sessions.
There are two primary standards for determining and evaluating whole-body vibration, as follows:
BS-6841
Measurement and evaluation of human exposure to whole-
body mechanical vibration and repeated shock.
ISO-2631
Evaluation of human exposure to whole body vibration.
While monitoring, the unit differentiates the velocity data into acceleration, applies the frequency
weighting and then calculates the VDV and Root Mean Square (RMS) values. The unit displays
the VDV and RMS values every ten seconds while recording, and stores the final calculations as
part of the file and Event Report.
The unit is capable of continuously monitoring full waveform data for 24 hours; the daytime VDV
monitoring is performed on the vertical channel (7:00 AM to 11:00 PM) while the nighttime VDV
monitoring is performed on the horizontal channels (11:00 PM to 7:00 AM). The Monitor
Scheduler feature must be used to specify the different settings required for daytime and
nighttime monitoring setup files. Refer to the Monitor Scheduler section of this manual for more
information.