-
range and a tighter tolerance than a similar, lower cost, Class
2 unit. This applies to both the sound level meter itself as well
as the associated calibrator. Most national standards permit the
use of a Class 2 instrument,
but when the highest accuracy and reliability is in demand, e.g.
in research or law enforcement, Class 1 units must be used. All
Brel & Kjr instruments adhere to Class 1 requirements.
Hand-held & Portable Solutions
Environmental Noise Occupational Noise
Human Vibration Sound Intensity Room Acoustics
Building Acoustics Vibration Measurement
HEADQUARTERS: Brel & Kjr Sound & Vibration Measurement
A/S DK-2850 Nrum Denmark Telephone: +45 7741 2000 Fax: +45 4580
1405 www.bksv.com [email protected] Local representatives and service
organisations worldwide
Brel & Kjr offers a range of hand-held or portable solutions
- Sound Level Meters and acces-sories to cover all demands from
level checks to in-depth analysis. Sound Level Meters are
instru-ments, usually hand-held, designed to measure a
frequency-weighted value of the sound pressure level in accordance
with an accepted na-tional or international standard. They consist
of a microphone, am-plifier, square-law rectifier, averag-ing
circuits and indicating instru-ment, and have a specified
per-formance in respect of directivity, frequency response,
rectification characteristic, and time-weighted averaging.
Standards The quality of sound level meters is defined by
International stan-dards such as IEC 61672: 2003 "Electroacoustics
- sound level me-ters". This standard is prepared by IEC technical
committee 29: Elec-troacoustics, in cooperation with the
International Organization of Legal Metrology (OIML). National
standards of most coun-tries - except those of the USA - follow
these closely. In many cases the equivalent European standard,
agreed by the EU, is designated for example EN 61672. Class I and
II Sound level meters are divided into two classes. The two classes
have the same design centre goals but the tolerances differ. Class
1 instru-ments have a wider frequency
-
TYPE APPLICATION FEATURES
2240 Noise at Work Noise Surveys
1. Class 1 Precision IEC and ANSI Standards Measures LAeq,
LAFmax, LCpeak, LAF
2238 All of the above and: Selection of Hearing Protection Noise
Monitoring Noise Assessment Complaint Handling Noise Reduction
Product Quality Control
All of the above and: Serial Frequency Analysis Logging
Broadband Markers in Logging Profile Statistics Back-erase Triggers
AC and DC Outputs Serial Interface
2250-L As above
All of the above and: Real-time Frequency Analysis Logging
Broadband and Spectrum Logging Profile Display with Markers Plug-in
Rechargeable Battery Large High-resolution Display Multi-language
User Interface Traffic Light Status Indicator Data Stored on
Plug-in Memory Cards 120 dB Dynamic Range USB Interface Serial
Interface Voice and Text Annotation of Measurements Charge
Injection Calibration (CIC)
2250 All of the above and: Tone Assessment CPB and FFT based
Reverberation Time Building Acoustics FFT Analysis Vibration
Analysis Vibration Severity
All of the above and: 3 Hz 20 kHz Broadband Linear Range
Triggers Timers Large Colour touch-screen Display Auto Windscreen
Detect and Correction Automatic Event detection Continuous Logging
Logging with Periodic Reports Signal Recording Transducer Database
Vibration Measurements FFT Tolerance Windows
2270 All of the above and: Dual Channel Building Acoustics
All of the above and: Dual Channel Measurements Built-in Camera
for Image Annotations
2
Handheld & Portable Solutions
THE BREL & KJR SOUND LEVEL METER FAMILY The most recent
additions, Types 2250 and 2270, are robust, hand-held instrument
platforms designed to host a wide range of sound and vibration
measurement applications. Their uses range from assessing
environmental and workplace noise to industrial quality control and
product development. Easy to use their robust, light and ergonomic
design make them easy to grip, hold and operate single-handedly.
Their high-resolution colour touch screens show the instrument
setup, status and data at a glance, and display is selected with
the tap of a stylus. The Hand-held Analyzers are built for the
tough environment of field measurements. They will work reliably in
rain, dust, heat, frost, day or night, or on a tripod. For
documentation, recordings, spoken or written comments can be added
to any measurements.
Instruments
-
TYPE 2240 INTEGRATING AVERAGING SOUND LEVEL METER Working in the
field of community comfort or occupational health controlling noise
levels, Type 2240 Class 1 Integrating-averaging Sound Level Meter
is a well-suited companion. Not just good looking, Type 2240 has
extremely easy to use inter-face for quick and simple measurements.
Accurate, reliable and affordable, Type 2240 measures time-averaged
sound level as de-fined by the IEC 616721 Class 1 standard, and
complies with IEC 60651 Type 1, and IEC 60804 Type 1 standards as
well as ANSI S1.4 and S1.43. Type 2240 is as straightforward as a
sound level meter can get. With three pushbuttons you control
everything and the front panels sliding cover reveals a quick guide
to all functions. The power and calibration switches are found on
the side panel. Whether youre checking simple sound levels,
controlling noise lev-els in the workplace or investigating
complaints, Type 2240 is ready to measure as soon as you press
start. You simply choose your sound level range and make your
measurement. LA, LAeq, LAMax., Lcpeak are all measured
simultaneously and you can toggle between the different sound level
readings during and after meas-urements.
Handheld & Portable Solutions Instruments
TYPE 2238 MEDIATOR SOUND LEVEL METER Type 2238 Mediator is a
versatile range of sound measurement instruments. The main
applications are: Evaluation of environ-mental noise, Measurements
of noise at workplaces and Assess-ment of product noise Mediator's
dedicated software provides direct support for applica-tions and
measurement practices for professional problem solving. The 2238
Mediator range provides four different software packages spanning
from on-the-spot noise level checks to logging of time histories
and frequency analysis. Adding functionality and perform-ance is a
simple matter of downloading additional software from a PC.
Mediator can host four different software packages at the same
time. Complemented by Brel & Kjr's post-processing software and
a complete range of accessories, 2238 Mediator assists from
meas-urements in the field to the final report. The hardware comes
with two independently frequency weighted detectors. These can be
used for RMS/Peak measurements or as two RMS detectors in parallel.
All time weighted parameters (using F, S and I time constants) can
be computed in parallel. A standard 2 Mbytes of memory is available
for storing data. All versions can be fully controlled via the
serial interface. Effects of sound inci-dence (frontal or random)
can be corrected by a built-in filter, as can the effects of a
windscreen, thus giving you Class 1 precision in all
situations.
Ideal for initial noise surveys!
3
More info: http://www.bksv.com/doc/bp2013.pdf
More info: http://www.bksv.com/doc/bp1776.pdf
-
TYPE 2250 L HAND-HELD ANALYZER LIGHT Type 2250 Light has been
developed specifically for measuring occupational, environmental,
and product noise, while complying fully with all the relevant
national and international standards. Extensive user studies paired
with state-of the-art technology make this analyzer a robust,
effective and elegant tool. Using the large, high contrast, touch
screen interface, the analyzer can easily be set up to display and
measure just what is needed from the extensive list of parameters
provided by the analyzer. 2250 Light comes with Sound Level Meter
Software installed, measuring all parameters simultaneously within
its wide 120 dB dynamic range. For frequency analysis, add the 1/1-
and/or 1/3-octave software module. For time profile investigation,
add the Logging software module. The optional software modules
install easily and work seamlessly with the Sound Level Meter
Software. Back in the office, USB connectivity lets you use your PC
to ar-chive, manage, view or even control 2250 Light, as well as
export your results to software packages such as MicrosoftExcel and
Brel & Kjr Types 7815, 7820 or 7825 for post-processing and
reporting. 2250 Light can be upgraded to a Type 2250 Hand-held
Analyzer, to include more features and applications such as
advanced log-ging, sound recording, FFT analysis, building
acoustics or rever-beration time.
Instruments
TYPE 2250 HAND-HELD ANALYZER Type 2250 is the innovative, 4th
generation, hand-held analyzer from Brel & Kjr. 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 excellent ergonomics and attractive
design. Type 2250 can host a number of software modules, including
fre-quency analysis, logging (profiling) and recording of the
measured signal. These are available separately at any time or you
can order a fully pre-configured instrument from the instrument.
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.
Ideal for Occupational Health and Safety!
The ideal analyzer for environmental noise and advanced acoustic
applications!
4
More info: http://www.bksv.com/doc/bp2151.pdf
More info: http://www.bksv.com/doc/bP2025.pdf
Handheld & Portable Solutions
-
TYPE 2270 HAND-HELD ANALYZER Hand-held Analyzer Type 2270 is
designed as an advanced solu-tion for sound and vibration
measurement, analysis and recording. Built on the award winning
Type 2250 design, Type 2270 continues to blend the best of todays
hand-held technologies with over 60 years of experience in sound
and vibration measurement solutions. Hand-held Analyzer Type 2270
includes a compact digital camera integrated into the body of the
instrument. The convenience of the integrated camera allows the
operator to enhance the measurement report with photo-graphs of
room lay-outs in building acoustics measurements, floor covering
material used in sound insulation testing, residential apartment
proximity to main roads for environmental noise assessment, or QC
tested elec-tric motors in vibration testing. Hand-held Analyzer
Type 2270 is designed with two independent measurement channels and
the potential to measure broadband parameters with frequency
content at two microphone locations simultaneously. This capability
may be used for: Simultaneous exterior and interior measurements
Sound insulation performance of interior floors and walls Outdoor
noise propagation Noise barrier performance verification
Instruments
TYPE 2260 INVESTIGATOR Type 2260 Investigator is the
top-of-the-range hand-held 2-channel analyzer. In addition to
broadband and real-time octave band measurements, Investigator
offers building acoustics (1- or 2-channel), room acoustics, sound
intensity, and narrow band (FFT) analysis with pure tone detection.
Type 2260 Investigator is a battery-operated, hand-held,
pro-grammable sound analyzer. Its embedded operating system, based
on a PC architecture, is closely integrated with a digital sig-nal
processor (DSP) and two-channel microphone conditioning
electronics, all together creating a versatile platform for high
qual-ity real-time sound analyses. Type 2260 Investigator is driven
by application software for vari-ous tasks. Every 2260 Investigator
is shipped with Basic Sound Analysis Software BZ 7210 that makes
the instrument into a precision sound level analyzer. Other
applica-tions available for 2260 Investigator include: Noise
Profiles (BZ 7203) Building Acoustics (BZ 7204) Sound Intensity (BZ
7205) Enhanced Sound Analysis (BZ 7206) Room Acoustics (BZ 7207)
FFT Analysis (BZ 7208) The potent combination of quality hardware
and unique application software ensures that 2260 Investigator
remains the world's most advanced handheld sound analyzer.
Top of the line acoustic analyzer! two channels, camera and LAN
interface.
5
More info: http://www.bksv.com/doc/bp2199.pdf
More info: http://www.bksv.com/doc/bp1691.pdf
Handheld & Portable Solutions
-
Instruments
2240 2238 2250-L 2250 2270 2260
APPLICATIONS
Environmental Noise x x x x x
Noise at Work x x x x x x
Noise Surveys x x x x x x
Noise Monitoring x x x x x
Product Quality Control x x x
Reverberation Time x x x
Building Acoustics x x x
FFT Analysis x x x
Vibration Measurement x x x
Tone Assessment 1/3 octave based x x x
Tone Assessment FFT based x x x
Dual Channel Measurements x x
Sound Intensity (x) x
Sound Power (x) x
FEATURES
SLM parameters x x x x x x
Dynamic Range 120 dB x x x
Serial Interface x x
USB Interface x x x
Frequency Range 3 Hz 20 kHz x x x
Frequency Analysis 1/1 and 1/3 Octave x x x x x
Real-time Frequency Analysis x x x x
Logging x x x x
Enhanced Logging x x
Sound Recording x x
Statistics x x x x x
Multi-language User Interface x x x
Colour Display x x
Voice Annotations x x x
Plug-in Memory Cards x x x
Built-in Camera for Image Annotations x
Choice of Instruments
Professionals working with environmental issues, ocupational
health and safety or building acoustics can use a variety of
instruments to measure noise, sound or vibration. They can even
choose from a variety of instruments and software to analyze their
measurements. The choice of instrument and approach for measuring
and analyzing noise depends on many factors, not the least of which
will be the purpose for the measurement and the environment in
which the measurement will be made. In general, measurement methods
should conform to international or national standards.
6
Handheld & Portable Solutions
-
BZ 5503 UTILITY SOFTWARE FOR HAND-HELD ANALYZERS BZ 5503 is an
archiving tool for Type 2250 Light, Type 2250 or Type 2270 data and
setups, and functions as the link between Type 2250 and
post-processing or reporting software on a PC. It enables you to:
Control Type 2250 from a PC Manage and archive data on a PC Install
and update software up to date
Instrument Software
OPTIONAL SOFTWARE MODULES FOR TYPE 2250 LIGHT, TYPE 2250 AND
TYPE 2270 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.
Enhanced Logging Software, providing continuous monitoring and
logging of Periodic Reports in addition to the features of Logging
Software. Parameters like Ldn and Lden are calculated.
Sound Recording Option, which provides a uniquely versatile
facility for attaching samples of the actually measured signal to
your measurements. This option works with allsoftware modules. The
recording uses the measurement transducer, while voice annotations
(standard in all modules) use a separate commentary microphone.
And more...
Type 2250/Type 2270 Software:
BZ-7222 Sound Level Meter Software BZ-7223 Frequency Analysis
Software BZ-7224 Logging Software BZ-7225 Enhanced Logging Software
BZ-7226 Sound Recording Option BZ-7227 Reverberation Time Software
BZ-7228 Building Acoustics Software BZ-7229 Dual-channel Building
Acoustics
Software
BZ-7230 FFT Analysis Software BZ-7231 Tone Assessment Option
BZ-7232 Noise Monitoring Software
Type 2250 Light Software:
BZ-7130 Sound Level Meter Software BZ-7131 1/1-oct. Frequency
Analysis Software BZ-7132 1/3-oct. Frequency Analysis Software
BZ-7133 Logging Software
Free complementary software!
7
More info: http://www.bksv.com/doc/bp1691.pdf
Multiple applicationsFlexibility!
Handheld & Portable Solutions
-
PC Software
PULSE REFLEX BUILDING ACOUSTICS TYPE 8780 PULSE Reflex Building
Acoustics Type 8780 is the soft-ware package for post-processing
and reporting of building acoustics measurements made with Type
2250/2270. Measured data can be directly imported from Type
2250/2270 into Type 8780 for viewing, further analysis/re-analysis
and reporting of data. This innovative, customer driven application
incorporates unique features: Fast-track report generation using
the PULSE Reflex
workflow concept and a library of user-defined report
templates
Versatile handling of measurement data in combining and
comparing assessments
Interactive measurement integrity checks ensuring the best
quality of calculation possible
The software comes with default setups for all relevant displays
for the measured data and results, however, any type of display may
be created to combine and compare data in a fully flexible way.
Available in over 15 languages, Type 8780 can generate reports
complying with national and international legislation.
TYPE 7820 EVALUATOR COMMUNITY NOISE ASSESSMENT 7820 Evaluator is
Windows based software for environ-mental noise evaluation. It
provides a versatile tool for analysing measured data from the
family of Brel & Kjr Sound Level Meters, and is a complete
solution for the determination of Rating Levels according to
several national standards. A Rating Level is a single value for
evaluating the poten-tial nuisance factor of noise. It takes into
account time of day, nature of the noise (impulsive, pure tones
pre-sent) as well as the overall levels of the noise. Evaluator
boasts many advanced features including the option of downloading
data from Brel & Kjr Sound Level Meters remotely via modem.
TYPE 7825 PROTECTOR PERSONAL NOISE EXPOSURE Protector is a
Windows-based software package for post-processing, simulating and
archiving noise expo-sure data. Designed to work with the family of
Brel & Kjr sound level meters, noise dose meters and sound
level analyzers, Protector allows you to quickly download sample
noise profiles for specific locations or persons. Protector can use
this data to calculate noise exposure for people or positions under
investigation. Protector calculates noise exposure according to
ISO9612.2. For situations where only work point noise measurements
are available, and workers move about, Protector can combine
workpoint measurements with a profile of a persons movements, to
simulate their per-sonal noise exposure.
8
More info: http://www.bksv.com/doc/bp1752.pdf
More info: http://www.bksv.com/doc/bp1717.pdf
More info: http://www.bksv.com/doc/bp2190.pdf
The Product of Intuition Store, analyse, report quickly!
Handheld & Portable Solutions
-
PC Software
9
TYPES 7810 A/B/C/D/E/F/G PREDICTOR Predictor is an intuitive
environmental noise calcula-tion software package to calculate and
analyse noise from various noise sources such as industry or
traffic. Model comparison is easy with its intuitive multimodel.
Real-life can be modelled quickly, easily and accurately, even in
complex situations, e.g. flyovers, bridges with barriers,
indoor-outdoor noise. Real-life measured data can be used as input
for source emission and for checking results. Different
configura-tions are optimised for different applications, enabling
Predictor to be used for all applications ranging from small-scale
impact assessments to mapping of large agglomerations.
TYPE 7816 ACOUSTIC DETERMINATOR Acoustic Determinator Type 7816
is an intuitive tool for determining the sound power level of
industrial sources by measuring sound pressure levels in the field.
Acoustic Determinator determines the sound power levels of vari-ous
sources in accordance with a wide range of national and
international standards, such as ISO 8297. An Acoustic Determinator
project can contain assess-ments of several sources according to
different stan-dards/methods and measurement data from analyzers
and sound level meters. Results can be exported to pre-diction
software such as Predictor Type 7810.
TYPES 7812 A/B/C LIMA ENVIRONMENTAL NOISE CALCULATION AND
MAPPING Lima is the most powerful noise calculation system
available. It includes advanced automated data manipu-lation,
geometric handling and allows you to efficiently perform large,
accurate noise calculations from existing data sets, without the
need to use other software, such as GIS (Geographical Information
Systems) and Auto-CAD. With fast algorithms and a huge capacity,
Lima can make rapid, yet accurate, calculations. It is highly
flexible, allowing in-depth analyses, and its openness eases
integration with external data sets, calculation
More info: http://www.bksv.com/doc/bp1602.pdf
More info: http://www.bksv.com/doc/bp1962.pdf
More info: http://www.bksv.com/doc/bp2003.pdf
Handheld & Portable Solutions
EN-0086 NOISEATWORK For NoiseAtWork is software for mapping and
analysis of noise levels at places where people work. Based on
measured noise levels and working schedules of em-ployees, noise
contours and Lex,8h values are calcu-lated by the software. It can
be used by anybody in-volved with the management of occupational
noise risks: health and safety officers and consultants,
occu-pational hygienists... NoiseAtWork is easy to use. Any project
follows a six step workflow displayed in main window. NoiseAtWork
generates a report with all input and result data.
-
Systems and Packages
TYPE 2250 H HAND-HELD VIBRATION ANALYZER Types 2250 and 2270 are
the easy, safe and clever approach to machinery noise and vibration
assessment, diagnostics and quality control. The analyzers combine
high frequency resolution (up to 6400 lines of analysis),
tap-and-drag operation and a wide dynamic range to become the
perfect on-location machine noise and vibration tool. Vibration
Analyzer Type 2250-H-001 is focused on vibration measurements and
includes the FFT Analysis Software only - no Sound Level Meter
Software or microphone. It may be upgraded for other applications.
The Type 2250 H vibration analyzer can be used for a wide variety
of vibration measurement applications and with a range of
accelerometers dependent on the level, position and environment in
which the measurements are to be made. Some more common
applications are: Quality testing and Inspection Product
Development Machinery analysis and troubleshooting Building
vibration Frequency analysis based on the Fast Fourier Transform
(FFT) algorithm is the tool of choice for measurement and
diagnostics of machinery noise and vibration. The frequency profile
of a machine is its fingerprint, revealing its sources of noise and
vibration and their paths to the measurement position. FFT Analysis
Software BZ-7230 and the optional FFT-based Tone Assessment
Software BZ-7231 enable objective and subjective tone assessments.
Vibration Analyzer Type 2250-H-001 comes with the Shoulder Bag
KE-0459, which has dedicated space for both the analyzer and the
basic vibration analysis accessories. A suitable accelerometer and
cable along with the signal recording option BZ 7226 are optional
accessories for 2250 H 001 vibration analyzer.
10
More info: http://www.bksv.com/doc/bp2183.pdf
Handheld & Portable Solutions
TYPE 2270-G HAND-HELD SOUND INTENSITY SYSTEM Type 2270-G is a
complete sound intensity system consisting of Hand-held Analyzer
Type 2270 with sound intensity software, and Sound Intensity Probe
Kit Type 3654. This powerful combination - portable and battery
operated - makes it easy to make a sound intensity measurements.
Type 2270-G can be used for: Sound intensity measurements to IEC
61043 Sound power measurements (non-standard) Noise source location
Noise mapping Type 3654 enables intensity measurements for noise
source location and sound power calculations. Automatic measurement
guidance and aural feedback during measurements allow the user to
concentrate on making
Quick, easy and reliable!
-
TYPE 2250 DNEK DEFENCE NOISE EVALUATION KIT Defence force work
environments can be totally unique particularly in combat training
and weapons testing and the Defence Noise Evaluation Kit DNEK is
developed to meet these exacting and unique requirements. The DNEK
system is a complete toolbox for noise assess-ment in military
applications: Identifying high exposure areas and jobs for
planning
noise-reduction measure Creating personal profiles of noise
exposure Calculating different scenarios by changing exposure
and noise exposure levels Evaluation of ear muffs, helmets and
other Personal
Protection Equipment (PPE) Monitoring exposure using
communications headsets
and other devices. The DNEK system is supplied in a customised,
hard-wearing case and includes the following: Type 2250-D Hand-held
Analyzer for assessment of
working environments Type 4231 Sound Calibrator for calibration
of meas-
urement equipment Type 4941 high SPL condenser microphone
for
measurements up to 194dB Type 4101 Binaural Microphone for
measurement in-
side headsets and hearing protectors Type 4445 Logging Noise
Dose Meter for assessing
personal noise exposure Type 7825 Protector for noise exposure
analysis, cal-
culations and reporting The 2250-DNEK allows measurements up to
194dB, max pressure 201 dB peak, for impulsive sources, artillery,
gun fire, etc. The lightweight Binaural microphones do not affect
normal hearing and the calibrator allows for changes in static
pressure and temperature, cockpits, high altitude measurements.
Systems and Packages
11
Handheld & Portable Solutions
NATO Stock No.: 0001 661584063
Measurements up to 194 dB - max. pressure 201 dB peak
for impulsive sources!
a smooth scan of the area under investigation. Type 2270-G
provides on-the-spot analyses of sound intensity spectra, which can
be exported via Utility Software BZ-5503 to Excel for sound power
calculation or to PULSE Noise Source Identification Type 7752 for
noise contour mapping. The probe kit comes with a weatherproof
carrying case to house the analyzer, probe with windscreen,
extension stem with handle, intensity adaptor for Type 4231,
earphones and tape measure. The case can also house optional
accessories such as a sound calibrator, sound intensity calibrator
and spare batteries.
More info: http://www.bksv.com/doc/bp2341.pdf
No jungle of cables - easy to carry!
-
Systems and Packages
TYPE 3655-A PORTABLE NOISE MONITORING UNIT This stand-alone
unit, based on Handheld Analyzer Type 2250 Light, monitors broad
band sound levels for a day or so of monitoring. The unit includes
space for a modem or router to enable the user to see results
real-time over a real-time remote connection and to remotely
control the unit from a PC using the utility software included.
Data can be manually synchronised with a PC using the 2250 utility
software BZ 5503 included and then can be transferred to
post-processing software such as Evaluator Type 7820 or exported to
Excel.Licenses for Sound Level Meter Software BZ-7130 and Logging
Software BZ-7133 are included. Frequency analysis module BZ-7132
can be added as an option if required. The unit includes Outdoor
Microphone 4952, a microphone extension cable and a tripod for
mounting the microphone at the correct position and height close to
the box.
TYPE 3655-B ENHANCED PORTABLE NOISE MONITORING UNIT This
stand-alone unit, based on Handheld Analyzer Type 2250 with
Enhanced Logging Software BZ-7225, provides enhanced noise
monitoring functionality including automatic event detection, sound
recording and CIC calibration checks for a day or so of monitoring.
The unit includes space for modem or router to enable the user to
see results real-time over a real-time remote connection and to
remotely control the unit from a PC using the 2250 utility software
BZ 5503 included. Data can be manually synchronised with a PC using
the utility software included and then can be transferred to
post-processing software such as Evaluator Type 7820 or exported to
Excel. Licenses for Frequency Analysis Software BZ-7223, 2250
Enhanced Logging Software BZ-7225 and Sound Recording Option
BZ-7226 are included. FFT Analysis Software BZ-7230 and Tone
Assessment Option BZ-7231 can be added as options for even more
enhanced functionality if required. The unit includes Outdoor
Microphone 4952, a microphone extension cable and a tripod for
mounting the microphone at the correct position and height close to
the box.
Rating Level (Lr)
Rating Level (Lr) parameter has been developed in an attempt to
put a numerical value on a noise to quantify its annoyance in
relation to the general population. The Rating Level is defined in
the ISO1996-2 standard (see section on Interna-tional Standards).
It is basically a measure of the noise exposure corrected for
factors known to increase annoyance. It is used to compare measured
levels with noise limits that usually vary depending on the use of
the property under investigation (see section on Assessment). The
basic parameter is the A-weighted equivalent continuous sound
pressure level or LAeq. The formula for the Rating Level is (in
general terms): Lr = LAeq + KI + KT + KR + KS where: KI is a
penalty for impulses, KT is a penalty for tone and information
content, KR is a penalty for time of day and KS is a penalty
(positive or negative) for certain sources and situations.
12
More info: http://www.bksv.com/doc/bp2251.pdf
Handheld & Portable Solutions
-
TYPE 3638 A EXHAUST NOISE INSPECTOR Exhaust Noise Inspector is
acomplete all-in-one system, designed for automatic measurement
according to 70/157/EEC and ISO 5130 of exterior exhaust sound
levels from motorbikes, cars, trucks and mopeds under stationary
conditions, simultaneously with RPM detection (engine sweep test).
The noise level and engine RPM are measured with the same
microphone. A large display, showing all the necessary information,
and an optional tachometer allow extremely simple and quick
measurements, in accordance with the standards. Local authorities
and police inspectors will appreciate the ergonomics of the system,
allowing measurements to be performed by one single operator.
TYPES 3650 AND 3652 MATRON3 MATRON3 Types 3650 and 3652 are the
third generation of MATRON neighbour noise nuisance recording
systems. MATRON3 (Manually Activated Timed Recording Of Noise) is
built on years of experience and takes care of your more difficult
and time-consuming noise investi-gations. Type 3650 includes at its
heart, a standard 2250-C Hand-held Analyzer with Class 1
measurement and sound recording capabilities. The 2250-C can also
be used as a powerful sound level meter independently of the
MATRON3 system. Type 3652 includes a Class 1 2250-M Hand-held
Analyzer, also with sound recording, that is designed exclusively
for use in the MATRON3 Light system. The complainant controls a
high-quality sound recording of the noise, by the simple activation
of a hand-switch. Meanwhile, the Class 1 hand-held analyzer
continuously measures and stores noise results for comparison
before, during and after the complainant initiated sound
recordings. Back in the office, it is easy to identify the source
and level of the noise, consequently, this makes it easier to
decide on what action to take.
Systems and Packages
International standard on Environmental Noise
ISO 1996 Description, measurement and assessment of
environmental noise. Part 1: Basic quantities and assessment
procedures. Part 2: Determination of environmental noise levels.
ISO 1996-1:2003 defines the basic quantities to be used for the
description of noise in community environments and describes basic
assessment procedures. It also specifies methods to assess
envi-ronmental noise and gives guidance on predicting the potential
annoyance response of a community to long-term exposure from
various types of environmental noises. The sound sources can be
sepa-rate or in various combinations. Application of the method to
predict annoyance response is limited to areas where people reside
and to related long-term land uses. Community response to noise can
vary differently among sound sources that are observed to have the
same acoustic levels. ISO 1996-1 describes adjustments for sounds
that have different character-istics. The term rating level is used
to describe physical sound predictions or measurements to which one
or more adjustments have been added. On the basis of these rating
levels, the long-term com-munity response can be estimated. ISO
1996-1 does not specify limits for environmental noise.
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The ideal tool to investigate
neighbour noise complaints!
Automatic measurement procedureand print on the spot!
More info: http://www.bksv.com/doc/bp2014.pdf
More info: http://www.bksv.com/doc/bp2141.pdf
Handheld & Portable Solutions
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Building Acoustics Systems
SOUND SOURCES FOR BUILDING ACOUSTICS: TYPE 4292 OMNIPOWER SOUND
SOURCE TYPE 4295 OMNISOURCE SOUND SOURCE TYPE 3207 TAPPING MACHINE
TYPE 2734-A AND 2734-B POWER AMPLIFIERS For proper building
acoustics measurements, a sound source which fulfills the relevant
standards (for example, ISO 140) is required. Brel & Kjr offers
a complete range of sound sources for building acoustics
measurements, including Tapping Machine Type 3207, single-speaker
omnidirectional OmniSource Type 4295 and 12-speaker omnidirectional
OmniPower Type 4292. Power Amplifier Type 2734 can drive both
OmniPower and OmniSource. Optional carrying cases for the sound
sources are available, as well as wireless control systems for use
with Hand-held Analyzer Type 2250 and the dual channel Type
2270.
TYPE 2250-J AND TYPE 2270-K BUILDING ACOUSTICS SYSTEMS Type
2250-J and Type 2270-K are complete hand-held analyzers needing
only a sound source to measure building acoustics and provide sound
insulation indices on the spot. However, a wide selection of
accessories are available to extend the applications, such as:
Power amplifier and a choice of sound sources Tapping machine for
impact sound insulation
measurements Tripods, extension cables and flat cables
Microphone and cable for dual channel application
(2270-J) Wireless transmission of generator signal and
wireless
remote control of tapping machine Rotating microphone boom
Calibrators For Single-Channel measurements Type 2250-J-001
Building Acoustics System contains all relevant components, while
Type 2270-K-001 Dual-channel Building Acoustics System is designed
for dual-channel measurements. Both systems are complete with sound
source, power amplifier, calibrator, cables, bags and casesand both
systems include the PULSE Reflex Building Acoustics software
package for postprocessing and reporting.
Building Acoustics
Building acoustics measurements are invaluable when designing or
examining noise control constructions in the built environment.
Whether in our homes, at work, or at leisure, our lives are
constantly affected by an ever increasing number of noise sources;
televisions, kitchen appliances, neighbours, traffic, industry -
all of it noise pollution. One method of reducing the pollution is
to reduce the noise source level. Building acoustics takes another
approach and examines insulation and isolation from the source.
Brel & Kjr have a complete programme of applications to check
conformance to building regulations and pinpoint weak spots in
sound insulation.
14
More info: http://www.bksv.com/doc/bp1689.pdf
More info:
http://www.bksv.com/Products/BuildingAcoustics.aspx
Handheld & Portable Solutions
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Building Acoustics Software
TYPES 7835, 7836 AND 7837 ODEON ROOM ACOUSTICS MODELLING
SOFTWARE ODEON is reliable, easy-to-use modelling software for
simulating acoustics of closed rooms, open spaces, buildings and
outdoor areas. It is a proven tool for predicting the acoustics of
new buildings and for evaluating and recommending improvements in
existing ones. The acoustics are calculated based on a room's
geometry and surface properties. Graphs, 3D plots and 3D animations
make it easy to interpret, explore and present results, and using
auralisation you can experience the acoustics of the space as it
would be after construction. ODEONs prediction algorithms
(image-source method combined with ray tracing) allow reliable
predictions in modest calculation times. With this, ODEON is ideal
for the prediction of acoustics in concert halls, opera halls,
auditoria, foyers, underground stations, airport terminals and
industrial workrooms, as well as office environments, smaller
lecture rooms, open-air venues, patios and atria. In large rooms
and open spaces, PA systems may be necessary to support the
acoustics. ODEON provides the tools to simulate such systems. For
the prediction of noise levels from large machinery a special
ray-tracing algorithm has been developed that allows the modelling
of surface and line sources.
TYPE 7841 DIRAC ROOM ACOUSTICS SOFTWARE DIRAC PC software is
used for measuring a wide range of room acoustical parameters.
Based on the measurement and analysis of impulse responses, DIRAC
supports a variety of measurement configurations. For accurate
measurements according to the ISO 3382 standard, you can use the
internally or externally generated MLS or sweep signals through a
loudspeaker sound source. Survey measurements are easily carried
out using a small impulsive sound source, such as a blank pistol or
even a balloon. Speech measurements can be carried out in
compliance with the IEC 6026.16 standard, for male and female
voices, through an artificial mouthdirectional loudspeaker sound
source or through direct injection into a sound system, taking into
account the impact of background noise. DIRAC is a valuable tool
not only for field and laboratory acoustics engineers, but also for
researchers and educational institutions.
Room Acoustics
Room Acoustic measurements are used to validate new
constructions and to troubleshoot existing ones. Room Acoustic
modelling is used for planning new constructions, and for
investigating changes to existing ones. Measurement and modelling
go hand in hand the Room Acoustic Measurement System DIRAC Type
7841 and the Room Acoustic Modelling suite ODEON Types 7835, 7836
and 7836, are the perfect tools to help control the acoustic design
of rooms.
15
Hear the acoustics of a building
before it is even build!
More info: http://www.bksv.com/doc/bp1950.pdf
More info: http://www.bksv.com/doc/bp1974.pdf
Handheld & Portable Solutions
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Other Instruments
TYPE 4447 HUMAN VIBRATION ANALYZER
Brel & Kjrs Human Vibration Analyzer Type 4447 is a portable
system designed for those who work with human vibration and require
quick and reliable results that are in compliance with EU Directive
2002/44/EC. With an easy-to-understand control panel, comprising
four pushbuttons and a colour LCD display, the instrument can be
operated with minimum learning time. The 124x124-pixel colour
display shows details of the instruments configuration and the
resulting vibration parameters during and after measurement. This
hand-sized instrument is battery powered and has a lightweight yet
rugged design, making it the ideal tool for measuring human
vibration in the working environment. Type 4447 supports individual
triaxial and single-axis measurements as well as simultaneous
triaxial and single-axis measurements. Furthermore, all
measurements can be carried out as logging measurements, where RMS,
MTVV, Peak and VDV are logged at 1 second intervals. Type 4447 also
includes PC software for data management and post-processing.
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TYPE 4444 NOISE DOSE METER TYPE 4445 LOGGING NOISE DOSE METER
TYPE 4445 E INTRINSICALLY SAFE LOGGING NOISE DOSE METER Noise Dose
Meter Type 4444, Logging Noise Dose Meter Type 4445 and
Intrinsically Safe Logging Noise Dose Meter Type 4445 E are small,
lightweight and robust instruments for the assessment of personal
noise exposure. The meters perform all of the essential functions
for making dose measurements. In addition, Types 4445 and 4445 E
include statistical analysis of measurement data and the ability to
log user-selected values. The instruments have been designed for
daily use, a simple matter of switching on, calibrating and
starting the measurement. Definition of setups and handling of data
can be done from a PC connected to the instrument. The instruments
can also be connected directly to printers, or to PCs, for further
data processing.
4231 SOUND CALIBRATOR Sound Calibrator Type 4231 is a handy,
portable sound source for calibration of sound level meters and
other sound measurement equipment. The calibrator is very robust
and stable, and conforms to EN/IEC 60942 Class LS and Class 1, and
ANSI S1.40-1984. Sound Calibrator Type 4231 is a handy, portable
sound source for calibration of sound level meters and other sound
measurement equipment. The calibrator is very robust and stable. A
leather protecting case, which does not need to be removed to use
the calibrator, is supplied.
Ensure accurate measurements! Often required by standards
More info: http://www.bksv.com/doc/bp2106.pdf
More info: http://www.bksv.com/doc/bp2147.pdf
More info: http://www.bksv.com/doc/bp1311.pdf
Handheld & Portable Solutions
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SERVICE AND SUPPORT Installation It is very important to Brel
& Kjr that customers get up and running successfully with their
new equipment. To achieve this the company strives to make products
easy and intuitive to use and all products are supplied with
detailed product documentation. However, in some cases, especially
with more comprehensive systems, it may be beneficial to get the
assistance of Brel & Kjr project engi-neers and application
specialists. Therefore, on-site installation and site acceptance
test is offered if required. Education Brel & Kjr make more
than 60 years of knowledge and experience available to customers by
means of seminars, advanced courses and product training covering a
broad range of applications, theories and products. Through this
knowledge-sharing program, we believe that we can truly help our
custom-ers and their employees maximise the benefits gained from
using Brel & Kjr equipment building and spreading sound and
vibration related knowledge worldwide. Support In addition, Brel
& Kjr offers a variety of technical literature ranging from
Product Data to reference books that help understand the
applications, the products and the theory behind sound and
vibration measurements. Most of this literature is available in
electronic form and can be found on our website www.bksv.com.
Customers with a Help Line agreement also get access to technical
support through Brel & Kjrs worldwide service network, where a
team of technical specialists is ready to answer, by telephone,
mail or fax, any questions about the products. Calibration
Measuring with properly calibrated equipment is the only way of
knowing that readings or results are correct. Regular calibration
of measuring equipment is not just an investment in quality. It can
also be a source of real cost savings by minimising the cost of
errors due to faulty or inaccurate measurements. Brel & Kjr
offer a comprehensive range of calibration services, and all Brel
& Kjr calibrations are documented traceable as well as being
performed in accordance with the relevant national and
interna-tional standards. Brel & Kjr calibration laboratories
are accredited in many regions, fulfilling the re-quirements of ISO
and other standards. Maintenance Reliable measurements can only be
made with properly calibrated instruments in good working order. If
an instrument requires repair or adjustment, skilled Brel & Kjr
engineers are on hand to do the necessary work. By signing an
extended warranty agreement, the risk of unexpected repair costs
can be eliminated and the factory warranty period extended up to
five years after purchase. Upgrade As manufacturers of PC-based
measurement systems, we know that software is of prime importance.
As a result, Brel & Kjr is continuously improving software with
new features, enhancements and up-dates and including these
improvements in new releases. Subscribing to a Software Maintenance
and Upgrade Agreement gives access to the latest news and software
releases from the Brel & Kjr family of software applications,
with new features, improved functionality, bug fixes and error
corrections. This will help keeping equipment at the highest level
of performance.
Service and Support
17
MAXIMISE THE RETURN ON YOUR INVESTMENT
Software, instruments or transducers from Brel & Kjr, meet
the highest standards in quality and performance. In addition, Brel
& Kjr offers a range of services to help maintain the equipment
and the integrity of measurements through the entire lifetime of
the products. A Brel & Kjr service agreement is the best way to
ensure the full benefit of investments for many years to come.
GLOBAL SERVICE
Brel & Kjr can provide these services wherever customers are
found. Approximately 100 people are employed in service centres in
America, Europe and Asia. Brel & Kjr is never further away than
the local sales representative or service centre, so help is always
at hand in local language.
Handheld & Portable Solutions
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THE COMPANY Brel & Kjr is a world leader in sound and
vibration. The com-pany was founded by Per Vilhelm Brel and Viggo
Kjr on Novem-ber 28, 1942. Today Brel & Kjr has more than 1050
employees (500 the headquarters in Denmark), including more than
200 R&D engineers. The company has 90 offices and agents in 55
countries, including fully owned sales and support offices in 20
countries and twelve Accredited Calibration Centres. Brel & Kjr
sales amounted to 158 million in 2007 with a market share of 22
per-cent. Brel & Kjr is the only truly global service
organisation within Sound and Vibration. PRODUCTS AND SOLUTIONS
Brel & Kjr has a wide product range in excess of 4000 items,
including transducers, a full range of hand-held sound level
me-ters, analyzers, exciters, test and calibration systems, service
products and customised solutions. Transducers: Brel & Kjr
offer a full range of acoustic, vibration and pressure transducers:
microphones, hydrophones, pressure transducers, accelerometers,
force transducers and conditioning amplifiers. Brel & Kjr also
offers a variety of both vibration and sound exciter systems. Noise
measurement: Brel & Kjr offers a full range of sound level
meters and analyzers, dose meters, human vibration meters and noise
monitoring systems as well as software for both noise prediction
and post analysis. Analyzers: PULSE is Brel & Kjrs platform for
noise and vi-bration analysis. With its vast range of software
applications and hardware configurations PULSE is a leader in a
wide range of in-dustries, including Automotive, Electroacoustics
and Telecommuni-cations, Aerospace and Defence and Consumer
Products. Industrial testing: Brel & Kjr may supply data
acquisition tools and recorders, vibration meters, and tests
systems such as sound quality systems, vibration control systems,
telecom and au-dio systems, vibration testing systems as well as
high-class cali-bration systems. The PULSE software selection
includes post analysis and simulation as well as a wide range of
applications in acoustics, machine diagnostics, electroacoustics,
vibroacoustics and structural dynamics.
Please, contact your local Brel & Kjr representative for
more information:
HEADQUARTERS: Brel & Kjr Sound & Vibration Measurement
A/S DK-2850 Nrum Denmark Telephone: +45 7741 2000 Fax: +45 4580
1405 www.bksv.com [email protected] Local representatives and service
organisations worldwide
SOUND AND VIBRATION - CONTACT BREL & KJR Brel & Kjr is a
global company with sales offices in 55 countries and more than 500
employees working within local sales, service, and support
worldwide.
Brel & Kjr Sound & Vibration Measurement A/S Export
Sales Skodsborgvej 307 DK-2850 Nrum, Denmark Phone: +45 7741 2000
Fax: +45 7741 2015 E-mail: [email protected] www.bksv.com
Hand-held sound level meters were made commercially
available in 1961 and, ever since, Brel & Kjr has been
the market leader in solutions for professionals in the field
of
environmental noise and noise in the workplace.