Type 2238 - Integrating Sound Level Meter - Type 2238 Mediator

Multifunction acoustic calibrator Type 4226 Type 4226

Multifunction Acoustic Calibrator Type 4226 enables simulated free-field calibration of microphones, sound level meters and other related instruments. Type 4226 generates accurate and stable sound pressure with a frequency varying from 31.5 Hz to 16 kHz in octave steps, plus a signal at 12.5 kHz.

Using the coupler provided, the test signal can be applied to either ½-inch or ¼-inch microphones, or picked up from an electrical output. For ease of use, Type 4226 can also apply a very accurate inverse A-weighting correction.

An external generator can be connected to Type 4226 if a frequency sweep or semi-automatic test is desired.

Multifunction Acoustic Calibrator

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Sound Calibrator Class 1 and LS, 94 and 114 dB, 1 kHz

Sound Calibrator Type 4231 Type 4231

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.

For maximum confidence in your measurement results you can quickly compensate for local measurement conditions by calibrating before every measurement. Twin sound pressure levels guarantee definitive checks even in noisy environments, and ensure linearity in your microphones.

Sound Calibrator Class 1 and LS, 94 and 114 dB, 1 kHz

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Noise Explorer Type 7815 Type 7815

A Windows^®-based software package for downloading, viewing and reporting of noise data measured with Brüel & Kjær hand-held instruments, including sound intensity measurements made with Type 2260 Investigator.

Noise Explorer - data viewing software

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Evaluator - data viewing and calculation software

Evaluator Type 7820 Type 7820

Windows^®-based software for environmental noise evaluation and reporting using data measured with Brüel & Kjær's sound level meters. Measurement data can be edited and combined in order to calculate a rating level for the noise source in question.

Results are presented according to a framework of user-defined parameters, including time of the day/week as well as penalties for impulse and constant tones. To simplify the assessment, a variety of parameters are available that accord with national standards.

Evaluator - data viewing and calculation software

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Evaluator Light Type 7821 Type 7821

Windows^®-based software for environmental noise evaluation and reporting using data measured with Brüel & Kjær's hand-held instruments.

Using the software, measurement data can be edited and combined in order to calculate a rating level for the noise source in question. Results are presented according to a framework of user-defined parameters, including time of day/week as well as penalties for impulse and constant tones. To simplify the assessment, a variety of parameters are available that accord with national standards.

Evaluator Light

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Protector - Software for calculation of Personal Noise Exposure

Protector Type 7825 Type 7825

A PC software package for the assessment and simulation of noise exposure in work environments. Calculations are based on measurement data from Brüel & Kjær sound level meters and noise dose meters.

The software provides a range of tools to post-process noise profiles for specific locations or persons, and makes it easy to model different scenarios for 'what if' analysis.

Protector - Software for calculation of Personal Noise Exposure

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