Sound meters

Castle Group has a new
range of pocket sized sound
meters.

The ‘Sonus’ Sound Level
and Dose meters feature
dual-frequency
measurement suitable for
hearing protection
calculations, data-logging,
and measurements to
support noise at work and
environmental applications.

Once measurements have
been taken, the data can be
downloaded into Castle’s
dBdataPRO software where analysis
of hearing protection can be
performed using the in-built
database of ear defenders on the
HSE’s HML assessment
method.

The range features three
Class 1 and three Class 2
instruments to the new
IEC61672 Standard as well as
two dosemeters. It can
measure two frequency
weightings simultaneously as
‘A’ and ‘C’ or ‘A’ and ‘Z’ and
has FAST, SLOW and
IMPULSE time constants. The
Sonus becomes a personal
exposure meter (Dosemeter)
by unplugging the microphone and
plugging in a dosemeter cable.