26
27
measurements
Noise Dose
measurements
DOSE
page.
Hold the
to display ‘A‘; the area
selection will fl ash. Press or hold down
to toggle between ‘EU’ and ‘US’.
Press
to advance to setting the
criterion. ‘C’ will now be displayed
with the criterion level fl ashing.
Press
or hold down
to select the desired
8hr-criterion: 75.0, 80.0, 85.0 or 90.0
dBA.
Noise Dose
How do I measure noise dose?
Th
e soundBadge automatically
calculates and displays noise dose
based on a pre-chosen area, criterion
level and exchange rate (default =
EU, 85.0 dBA and 3 dB respectively).
Th
ere are two ways to measure a dose:
(1) during a sub-measurement; (2)
while recording a main-measurement.
Measure a noise dose using a
sub-measurement
Press
to advance to the
DOSE
page.
Press
and
together to start a
sub-measurement. Dots will appear on
either side of
DOSE
to indicate a sub-
measurement is in progress.
Press
to cycle to the units you
wish to view the dose in (LEX,8h/
LEP,d = dBA; % Dose = %; or
Pa
2
•hrs; If
AVE
is also displayed, this is
the LAeq or average level not a dose).
Press
and
together to end the sub-
measurement.
Record the noise dose using a main-
measurement
Press the
button to advance to the
TIME
main page. If
ELAPSED TIME
is not
displayed, press the
button to display it.
Reset the elapsed timer by pressing and
holding the
button for 5 seconds until the
timer displays 00:00 and begins to count up.
Th
is will also reset the peak level, max levels,
average levels, and all peak counts.
Press
to return to the
DOSE
page.
Press
to cycle to the units you wish to
view the dose in (L
Aex,8
= dBA, L
EP,d
= %,
Pa
2
•hrs).
Change the area, criterion level and
exchange rate
Th
e soundBadge calculates noise dose in 3
diff erent units (dBA, %, Pa
2
•hrs). When the
units are dBA or %, the calculation takes into
account a pre-set criterion level and exchange
rate (for an explanation see page 20).
Press the
button to advance to the
Note: Regulations governing dose
calculations are diff erent in EU
vs the US. For EU calculations
soundBadge uses an ultra-fast
A-weighted channel to comply.
Th
is is why you can view both
dB
A
on the
LEVEL
page and
dB
A
with
AVE
on the
DOSE
page.
