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Type 2250 Hardware and Resident Software
Introduction
Type 2250 has generous hardware and software specifications creating an extremely flexible
instrument to cover your current and future measurement and analysis needs, ranging, for
example, from the traditional uses in assessing environmental and workplace noise to industrial
quality control and development. Type 2250 is a technological platform for realising measure-
ment applications in a compact and robust hand-held instrument.
This data sheet describes the suite of software applications available for Type 2250. All
instruments come with the Sound Level Meter Software (BZ 7222) enabled. This makes Type
2250 into a modern Class 1 Sound Level Meter (SLM). It fulfills the requirements of the latest
standard, IEC 61672–1, as well as earlier standards (see the specifications section for detailed
compliance information). Even in its most basic configuration, Type 2250 is delivered with a
number of pre-defined measurement and display setups tailored to suit specific requirements.
Optional Software Modules
As a platform, Type 2250 allows you to choose different combinations of software modules
(applications). Additional applications can be purchased when needed and are delivered as
easily installed licenses and the software can be used in any combination. In this way your
investment in the Type 2250 platform is securely protected and when your need for measure-
ments and analyses expands, Type 2250 can accommodate them. Brüel & Kjær is committed
to maintaining an ever-growing range of applications on this platform.
The optional software modules described in this data sheet are:
• Frequency Analysis Software, providing real-time analysis of the 1/1- and 1/3-octave filter
bands over a wide frequency range with a dynamic range from the noise floor in each
individual band to 140 dB.
• Logging Software, which allows free selection of parameters to log at periods from 1 s to
24 h. Running together with the Sound Level Meter Software all broadband parameters can
be logged. If Frequency Analysis Software is also enabled, spectra can be logged at the
same rates. Logging (or noise profiling) is used to develop time histories for use in envi-
ronmental noise as well as workplace noise assessment.
• Enhanced Logging Software, providing continuous monitoring and logging of Periodic
Reports in addition to the features of Logging Software. Parameters like L
dn
and L
den
are
calculated.
• Sound Recording Option, which provides you with a uniquely versatile facility for attaching
samples of the actually measured signal to your measurements. This option works with all
software modules. The recording uses the measurement transducer, while voice annotations
(standard in all modules) use a separate commentary microphone.
Post-processing Software
The software modules are further enhanced by Brüel & Kjær’s post-processing software suite.
All Type 2250 instruments include a dedicated PC software package (Utility Software for
Hand-held Analyzers BZ 5503) which handles data transfer, archiving of data, export of data,
setup, remote display, and software maintenance (for example, license installation and updates).
Separately available post-processing applications include 7815 Noise Explorer™ for data
viewing and archiving, 7820 Evaluator™ for advanced assessment of environmental noise,
and 7825 Protector™ for assessing workplace noise.
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