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BRUEL & KJAER 2250 User Manual

BRUEL & KJAER 2250
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PRODUCT DATA
Type 2250 is the innovative, 4th generation, hand-held
analyzer from Brüel & Kjær. The design philosophy is
based on extensive research which concluded that the
instrument should be easy and safe to use, while at the
same time incorporating clever features. Type 2250 has
been awarded several prizes for its combination of ex-
cellent ergonomics and attractive design.
Type 2250 can host a number of software modules,
including frequency analysis, logging (profiling) and re-
cording of the measured signal. These are available
separately at any time – or you can order a fully pre-
configured instrument from the factory.
The combination of software modules and innovative
hardware makes the instrument into a dedicated solution
for performing high-precision measurement tasks, in
environmental, occupational and industrial application
areas. As a result, you get the functionality you need
now, plus the option of opening up for more functionality
later – and your investment is securely protected.
Uses and Features
USES
Environmental noise assessment and monitoring
Occupational noise evaluation
Selection of hearing protection
Noise reduction
Product quality control
Class 1 sound measurements to the latest
international standards
Real-time analysis of sound in 1/1- and 1/3-octave
bands
Analysis of time histories for broadband parameters
and spectra (Logging)
Documentation of measurements using text and
voice annotations
Documentation of measurements through recording
of measured sound
FEATURES
Large, high-resolution, touch-sensitive colour screen
Data storage on plug-in memory-cards
Standard USB (On-the-Go) computer interface
Dynamic range in excess of 120 dB
3 Hz – 20 kHz broadband linear frequency range
Real-time frequency analysis in 1/1- or 1/3-octave
bands
Broadband and spectral data can be logged to obtain
a time history for later analysis
Sound recording of measured signal during all or
parts of a measurement
Personal measurement, display and job setup
PC software included for setup, archiving, export and
reporting
Automatic detection of, and correction for,
windscreen
Robust and environmentally protected (IP44)
Hand-held Analyzer — Type 2250, with Sound Level Meter Software BZ 7222,
Frequency Analysis Software BZ 7223, Logging Software BZ 7224,
Enhanced Logging Software BZ 7225 and Sound Recording Option BZ 7226

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BRUEL & KJAER 2250 Specifications

General IconGeneral
TypeSound Level Meter
Microphone1/2" Prepolarized Free-field Microphone
StandardsIEC 61672-1 Class 1, ANSI S1.4 Type 1
Weighting NetworksA, C, Z
Operating Temperature-10°C to +50°C
Weight650 g including battery
Data StorageInternal memory
Real-time analyzer1/1 and 1/3 octave
Time WeightingFast, Slow, Impulse
DetectorRMS
Power SupplyRechargeable battery or external power supply
Dimensions300 mm x 93 mm x 50 mm

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