6
You can view any quantity being measured, either during your measurement, or at any time
later. This also includes data transferred to a PC.
In all configurations, Type 2250 offers a variety of views of the same measurement. These
views have no impact on the measurement, but they allow you to see exactly what you want,
without interfering with any data. If, for example, you are logging broadband values as well
as spectra, you can choose to observe the profile, the time history, the overall or current
spectrum, or the overall or current broadband values. The choice of display has no influence
on what is measured or stored.
Fig. 5
Example displays
showing: (on the left)
the Logging Software
BZ 7224 display, with
an on-line marker
selection in the profile
display; (in the centre)
the current averaged
spectrum from the
same measurement
and; (on the right) the
broadband values from
the same
measurement. Select
freely between these
displays at any time
Sound Level Meter Software – BZ 7222
SLM Module
All Type 2250s come with the Sound Level Meter Software enabled. This makes Type 2250
into a versatile broadband sound level meter; it complies with the latest international standard
(IEC 61672–1) as well as previous international and national standards.
All quantities are measured at the same time. For example, A and C frequency weighted levels
are measured simultaneously, and at the same time F, S and I time weightings are applied in
parallel. In addition, Peak levels are measured. Full statistics are also computed on-the-fly.
Combine this with the dynamic range exceeding 120 dB and you will never miss a beat! You
get all the parameters in one attempt, under-range is non-existent and you will have difficulties
provoking an overload. The detailed list of available parameters can be found in the specifi-
cations section. You choose what you want on the display, but, at any time – during or after
the measurement – all other parameters can be inspected and reported.
The standard package allows you to document your measurements with written notes and voice
annotations. Notes are added using a virtual keyboard on the touch screen.
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