Solutii portabile protectia mediului si la locul de munca.pdf

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

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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!

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More info: http://www.bksv.com/doc/bp2013.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!

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More info: http://www.bksv.com/doc/bP2025.pdf


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.

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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.

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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!

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Multiple applicationsFlexibility!


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.

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The Product of Intuition Store, analyse, report quickly!


PC Software

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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





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.

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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.


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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.


No jungle of cables - easy to carry!


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.

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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.


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!




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.

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More info: http://www.bksv.com/Products/BuildingAcoustics.aspx


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.

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Hear the acoustics of a building

before it is even build!




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





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

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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.


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.

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