Sound level meters
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PRODUCT OVERVIEW Sound level meters Bruel & KjaBr BEYOND MEASURE

Noise Dose Meter – 4448 Integrating-averaging Sound Level Meter – 2240 Integrating Sound Level Meters – 2239-A and 2239-B Human Vibration Analyzer – 4447 PC Software DIRAC for Room Acoustics – 7841 7 Rugged Weather-protected Noise Measurement Equipment – 3535 PC Software Measurement Partner Suite – BZ-5503 Weather station kits – MM-0316-A and MM-0256-A Noise Monitoring Terminal – 3639-A/B/C Environmental Noise Management Solutions Noise Sentinel PC Software Predictor-LimA Suite – 7810 Building Acoustics Measurements – 2250 and 2270 Building Acoustics Accessories Room Acoustics Loudspeaker –...

Uses • Calibration of sound level meters and other sound measurement equipment Features • Conforms to EN/IEC 60942 (2003) Class LS and Class 1 and ANSI S1.40 – 1984 • Highly stable level, built-in reference microphone • Two calibration levels (94 and 114 dB, 1000 Hz) • Simple operation • Robust • Type approved and verifiable NOISE DOSE METER – 4448 Uses • Noise surveys in the workplace • Evaluation of personal noise exposure • Logging noise profiles (180 hours with 1 minute logging period) Features • Easy to operate • Easy to mount with compliance to standards • Measurement range...

INTEGRATING-AVERAGING SOUND LEVEL METER – 2240 Uses • Measurement of noise in the workplace • Assessment of environmental noise levels • General purpose sound pressure level measurements • Quality control • Vehicle noise inspection Features • Class 1 sound measurements • Noise parameters LAF, LAeq, LAFmax, LCpeak measured simultaneously • Simple operation • Compact and handy • Long battery life • Type approved and verifiable INTEGRATING SOUND LEVEL METERS – 2239 A AND 2239 B Uses • Surveys of environmental noise • Evaluation of personal noise exposure • Occupational-health related...

WEATHER STATION KITS – MM-0316-A AND MM-0256-A Uses • Weather measurements with Types 2250, 2270 and 2250-L • MM-0316-A • Log wind speed and direction, and show avg., max. and min. values • MM-0256-A • Log wind speed and direction, and show avg., max. and min. values • Log pressure, temperature, humidity and rainfall Features • Portable lightweight kit including all necessary accessories • Fully integrated solution – weather data collected on instrument and post-processed in Measurement Partner Suite • Ultrasound wind measurement – no moving parts • Low wind speed starting threshold (nearly...

HAND-HELD ANALYZERS HAND-HELD ANALYZER 2250 LIGHT USES • Evaluation of environmental and occupational noise • Product quality control • Sound power measurements (pressure based) • Real-time analysis of sound in 1/1- and 1/3-octave bands* • Analysis of time histories (Logging)* • Signal recording (SD memory card)* FEATURES 2250 LIGHT • Type approved and verifiable • Class 1 sound measurements • >120 dB dynamic range (without a range switch) • Bright, high-contrast display • Touch screen operation • Context-sensitive help – a “manual inside the instrument” • Internal Flash-RAM 512 MB • SD(HC)...

BUILDING ACOUSTICS MEASUREMENTS – 2250 AND 2270 BUILDING ACOUSTICS ACCESSORIES POWER AMPLIFIER WITH NOISE GENERATOR – 2734 -A/B Uses (software BZ -7228) • Airborne sound insulation measurement • Façade sound insulation measurement • Impact sound insulation measurement Features • Complete hand-held building acoustics analyzer • Source and receiving room level spectra and reverberation time spectra measurement • Built-in pink and white noise generator • Impulse and Interrupted Noise methods • Calculates final results on the spot to verify measurement before leaving • Indicators of measurement...

ROOM ACOUSTICS LOUDSPEAKER OMNISOURCE™ – 4295 Damping Material Loudspeaker Electronic filter 100046 Uses • Room acoustics measurements • Sound propagation measurements in factory workshops and auditoriums Features • Powerful single-loudspeaker system • Powered by Power Amplifier Type 2734 • Omnidirectional • Linear frequency response 80 Hz – 6.3 kHz • Smooth directional response • Max. sound power 105 dB re 1 pW (80 – 6300 Hz). Uses • FFT analysis of vibrations and noise • Troubleshooting on machines • Product development • Production quality control • Building vibration analysis • Field...

SOUND INTENSITY SYSTEM – 2270-G SOUND INTENSITY CALIBRATOR – 4297 Uses • situ sound power determination In • No need for expensive acoustic chambers • Source location and mapping • Building acoustics (for example, to measure flanking transmission) Component parts • Hand-held Sound Level Analyzer Type 2270 • Sound Intensity Software BZ-7233 • Intensity Probe Kit Type 3654 • Mapping Software Type 7752 Features • Hand-held • Easy to use • Flexible • Cost-effective Uses • Measurement and verification of pressure-residual intensity index • Phase matching of the sound intensity system to enhance...

Uses • Sound measurements in all weather conditions Features • Class 1 microphone according to EN 61672 – 1 • Type approved and verifiable in connection with Hand-held Analyzer Types 2250-L, 2250 or 2270 • Innovative bird spike • Charge Injection Calibration (CIC) for verification at remote sites • Selectable reference sound incidence direction (0° or 90°) • Easily removable windscreen for acoustical calibration or maintenance • heating necessary No • Highly stable Falcon Range™ microphone and preamplifier • Measurement range <25 to >140 dB(A) • Type 4952 -A includes Tripod Adaptor UA-1707...