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Introduction
Type 2250-L is built on the core platform of the award winning design of Type 2250 and maintains the
renowned Brüel & Kjær measurement excellence and Type 2250 platform’s ease of use in an efficient and
versatile sound measurement instrument. Whether addressing workplace noise compliance, environmental
noise assessment, or product noise certification, Type 2250-L offers the functionality to meet your
requirements. A unique user interface makes your measurements easier to perform with results that are
easier to analyse and report.
The comfortable and secure design feels safe in your hand, and the buttons fall precisely where they need to
be for a one-thumb operated Start, Stop and Save. The ‘Traffic Light’ indicator surrounding the Start/Pause
pushbutton gives you an immediate visual indication of measurement status, even in the brightest sunshine.
The large, high contrast, touch screen/display, lets you select parameters on the display and easily store
those setups in your Type 2250-L for future measurements.
This data sheet describes the suite of software applications available for Type 2250-L. All instruments come
with the Sound Level Meter Software for Type 2250-L (BZ-7130) included.
NOTE: Type 2250-L can be upgraded to a Type 2250 Hand-held Analyzer, which has added features and
supports a wider range of applications, such as enhanced logging, triggered signal recording and
reverberation time software. See Type 2250 Product Data BP 2025 for more information. The upgrade is on
an exchange basis, please contact you local Brüel & Kjær representative for details.Measurement Partner
Suite BZ-5503 is the next step in evolution from Utility Software BZ-5503, and its standard configuration is
included with your hand-held analyzer. This configuration provides data archive, preview and export
capabilities as well as software maintenance and remote online display.
Applications
Workplace and Industrial Hygiene Noise Measurement Applications
Type 2250-L is an easy-to-use, powerful tool to make you more
productive, and more confident working in hearing conservation
programs.Type 2250-L was developed with workplace noise as a
special concern.
For occupational health noise parameters, nothing was left out.
Type 2250-L can measure Fast and Slow and A- and C-Weighted
SPLs simultaneously (along with a separately weighted peak
detector) so that the values you need to specify hearing protection
are immediately on the display. Parallel analysis allows you to
compare a 3 dB exchange rate average measurement with a
selectable alternate 4, 5 or 6 dB exchange rate, including
separate dose, expected dose and exposure values.
Type 2250-L offers three independent threshold peak event counters, along with simultaneous Fast, Slow
and Impulse RMS detectors, to assess impulsive noise.
With the optional 1/1- and 1/3-octave frequency analysis software options, instantly assess noise control and
detailed hearing-protection requirements for a surveyed location. All the octaves are measured at the same
instant, along with broadband A- and C-weighted values, so there is no filter switching or range changing.
Sometimes noise levels in the workplace vary dramatically, and perhaps irregularly. To assess this kind of
noise it is helpful to measure and analyse a noise profile – a measurement that shows how the sound varies
with time. The logging option for Type 2250-L provides this capability in a natural, intuitive way. If you have
installed the 1/1- or 1/3-octave real-time frequency analysis option, Type 2250-L seamlessly integrates the
spectrum information into the noise profile.
Signal Recording Option BZ-7226 lets you record the measurement signal in order to identify and document
sound sources.
Easily export, archive and report your measurements using the included Measurement Partner Suite
BZ-5503, or export the results to Brüel & Kjær’s Protector Type 7825, where you can organise and
document a company’s noise and hearing conservation program. Type 7825 calculates noise exposure
according to ISO 9612–2.
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