Designed for unattended measurements up to a few days (typically), the light and robust enclosure protects the measurement system from the weather and unauthorized access while providing power and remote data retrieval. Battery power is provided by two Li-Ion batteries. A charger is included in the case for each battery.
Weather conditions affect the propagation of sound, so wind speed and direction must be taken into account when measuring noise outdoors. Consequently, most standards for the measurement of environmental noise define limits for wind speed and direction. Connect your MM-0316-A or MM-0256-A weather kit to your Type 2250, 2270 or
OBSOLETE PRODUCT – page for information and support purposes only. This shoulder-mounted, cable-free, personal noise dosimeter has a simple two-button operation, an informative LCD display and an auto-calibration function. Its built-in memory and rechargeable battery provide several working days of measurement. USE SCENARIOS Assessment of noise exposure at work
Measurement Partner Suite (MPS) is Brüel & Kjær’s state-of-the-art data viewing and post-processing toolbox for environmental noise and vibration professionals. It comes with all Type 2270, 2250 and 2250-L instruments. The standard configuration is free and provides field support with the Measurement Partner (MP) Field App for iOS and Android, and MP Cloud.
Protector is an unlicensed PC software package that provides a range of tools to post-process noise profiles for specific locations or people, making it easy to model different scenarios for “what if” analysis. Being unlicensed, Protector can be freely distributed throughout your organisation without the need to purchase extra dongles.
Qualifier enables viewing, documenting and archiving of airborne, facade and impact sound insulation measurement data. It also displays reverberation measurements as 3D-multispectra, providing a complete overview of the frequency-dependent reverberation curves. USE SCENARIOS Airborne sound insulation post processing Impact sound insulation post processing Reverberation time post processing Reverberation-time measurements are
With Evaluator or Evaluator Light, measurement data can be edited and combined in order to calculate the rating level for a noise source. 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
Signal recording can be configured to run for the duration of the measurement, or it can be manually controlled or triggered to begin when a pre-set level is exceeded. Pre- and post-recording buffers can be utilised if the recording is manually controlled, meaning you can hit the manual event button
This module allows continuous logging of multiple parameters at intervals of 1 second to 24 hours, 10/100 ms logging of selected parameters and user definable report periods. It also logs spectra at specified intervals when Frequency Analysis Software BZ-7223 is enabled. With Signal Recording Option BZ-7226 enabled, signal recordings of the measured noise or
The application measures a dynamic range from the noise floor in each individual band to a maximum level of 140 dB. Spectral data can be measured for five different parameters: Leq, LFmax, LFmin, LSmax and LSmin. You can select which frequency weighting (A, C or Z) during the measurement setup. In
The application’s algorithm uses a measurement technique that gives narrow-band filtering using post-processing of a digital time record. FFT analysis is carried out in real-time. When used in conjunction with the Tone Assessment option on your Type 2250-S and Type 2270-S sound level meter, the application enables objective tone assessment in the field. USE
Using two channels enables you to make measurements that are otherwise impossible with a single (one-channel) instrument. The two channels can have inputs from the same type of transducer (e.g., two microphones) or different transducers (e.g., one microphone and one accelerometer). With two channels you can often halve your measurement
For use on sound level meters Type 2250-S and Type 2270-S, the application assesses a variety of building acoustic parameters according to a wide range of national and international standards. USE SCENARIOS Airborne sound insulation Façade sound insulation Impact sound insulation The application guides users through all necessary reverberation and level measurements in
This standard software, included in the basic package for Types 2250-S and -W and 2270-S and –W, provides a single, wide dynamic range that is combined with simultaneous measurement of RMS and peak levels with different frequency and time weightings so you can gather all information in one go. The
BZ-7131 provides 1/1-octave spectra (centre frequencies 16 Hz to 8 kHz) and BZ-7132 provides 1/3-octave spectra (centre frequencies 12.5 Hz to 16 kHz). Both applications have spectral statistics based on LAF or LAS and a dynamic range from the noise floor in each individual band to a maximum level of
This standard software included in the basic applications package for Type 2250 Light provides a single, wide dynamic range combined with simultaneous measurement of RMS and peak levels with different frequency and time weightings so you can gather all information in one go. The sound level meter template also offers
The Logging application also can log spectra if Frequency Analysis Software BZ-7131 or BZ-7132 is installed. During measurement, markers and annotations can be added to the profile. With Signal Recording Option BZ-7226 installed, signal recordings can be made to document events as they happen. USE SCENARIOS Environmental noise monitoring with Type 2250-S, Type 2270-S and Type 2250 Light sound level
When used in conjunction with the FFT Analysis or Frequency Analysis application for sound level meters Type 2250 and Type 2270, or the Frequency Analysis application for the Type 2250 Light, this option provides an objective assessment of tonal noise components. The analysis is fully automatic, identifying all tones in the measured spectrum. On
The application supports two reverberation time measurement methods: impulsive excitation (Schroeder Method) and interrupted noise. In the impulsive excitation method, Type 2250-S automatically measures reverberation time when a balloon burst or starter pistol is used to excite the room. In the interrupted noise method, the sound level meter intelligently controls a loudspeaker
This sound level meter software for Type 2270 is usually used together with a sound intensity probe, to assess sound levels and give instant results. This system makes it easy for one person to perform a sound intensity measurement from beginning to end. By scanning the object, you can get
This option enhances functionality in Sound Level Meter BZ-7222, Frequency Analysis BZ-7223 and Enhanced Logging BZ-7225applications. It enables infrasound and building vibration measurements to be performed according to the most important international standards. For infrasound measurements, use low frequency microphone Type 4193 or Type 4964 optionally with the LF adaptor UC-0211. For building vibration measurements, use accelerometer Type 8344. For peak