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PRODUCT DATA

Type 2250 and Type 2270 are the innovative, 4th generation

hand-held analyzers from Brüel & Kjær. The analyzers’ easy,

safe and clever design philosophy is based on extensive

research. Type 2250 has been awarded several prizes for its

combination of excellent ergonomics and attractive design.

Both analyzers can host a number of applications, including

frequency analysis, logging (profiling) and signal recording, but in

addition, Type 2270 adds dual-channel capabilities such as

sound intensity/sound power measurements and dual-channel

building acoustics applications. Applilcations are available

separately at any time – or you can order a fully pre-configured

instrument from the factory.

The combination of application modules and innovative hardware

makes these instruments into dedicated solutions for performing

high-precision measurement tasks in environmental,

occupational and industrial application areas. As a result,

Brüel & Kjær delivers the functionality you need now, plus the

capability to add more functionality later – this is a very

secure investment.

120279

Hand-held Analyzer Types 2250 and 2270

with Sound Level Meter Software BZ-7222, Frequency Analysis Software BZ-7223,

Logging Software BZ-7224, Enhanced Logging Software BZ-7225,

Signal Recording Option BZ-7226 and Tone Assessment Option BZ-7231

Uses and Features

Uses

• Environmental noise assessment

• Occupational noise evaluation

• Reverberation Time measurements

• Selection of hearing protection

• Noise reduction

• Product quality control

• Class 1 sound measurements to the latest international

standards

• Real-time analysis of sound in 1/1- and 1/3-octave bands

• Tone assessment using 1/3-octave methods

• Loudness and noise rating measurements

• Analysis of time histories for broadband parameters and

spectra (Logging)

• Documentation of measurements using text, voice and

metadata annotations

• Documentation of measurements through recording of

measured signals

• Logging up to 10 broadband parametersand 3 spectral

parameters

Features

• Dual-channel measurement capabillity

†

• Large, high-resolution, touch-sensitive color screen

• Data storage on high-capacity plug-in memory cards

• Communication via USB, LAN, or GPRS/3G modems

• Dynamic range in excess of 120 dB

• 3 Hz – 20 kHz broadband linear frequency range

• Recording measured signal during all or parts of a

measurement (optional)

• Personalized measurement, display and job setup

• Integral digital camera for documentation and reference

†

• “Smiley” quality indicators with hints and warnings

• Timers for automatic start of measurement

• PC software included for archiving, previewing and exporting

data; software maintenance and remote online display

• Automatic detection of and correction for windscreen

• Weather data and GPS input

• Robust and environmentally protected (IP44)

For more information, please refer to the relevant product data sheet.

†

Type 2270 only.

Summary of content (20 pages)

PAGE 1
PRODUCT DATA Hand-held Analyzer Types 2250 and 2270 with Sound Level Meter Software BZ-7222, Frequency Analysis Software BZ-7223, Logging Software BZ-7224, Enhanced Logging Software BZ-7225, Signal Recording Option BZ-7226 and Tone Assessment Option BZ-7231 Type 2250 and Type 2270 are the innovative, 4th generation hand-held analyzers from Brüel & Kjær. The analyzers’ easy, safe and clever design philosophy is based on extensive research.
PAGE 2
Applications and Hardware Introduction Types 2250 and 2270 have generous hardware and software specifications. They deliver an extremely flexible instrument that can cover your current and future measurement and analysis needs – from the traditional uses in assessing environmental and workplace noise to industrial quality control and development. These analyzers offer a technological platform for performing measurement applications in a compact and robust hand-held instrument.
PAGE 3
Post-processing Software Measurement Partner Suite BZ-5503 is the next step in evolution from Utility Software BZ-5503, and its standard configuration is included with your hand-held analyzer. This configuration provides data archive, preview and export capabilities as well as software maintenance and remote online display. In addition to the free, standard configuration mentioned above, valuable data analysis and post-processing functionalities are now available in a growing suite of optional applications.
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Using the Platform Great care has been taken to ensure that the hardware is ergonomically optimal in field use. Similarly, the software design has focused not only on making valid measurements but also on making field use efficient, convenient and intuitive. All user choices for setups (what to measure) and preferences (how to display it) are controlled using easy to understand lists, that can be expanded and collapsed. No more cluttered displays, choose only the parameters you want to see. Fig.
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Fig.
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Display Capabilities As a user, you have several ways of tailoring the display to suit your specific needs. However, standard display elements are used to ensure uniformity, not only across different applications, but also across different users, setups and preferences. Once you have set up your measurement and display parameters the way you wish, you can save the setup in user-defined templates. Fig. 5 Typical display when (Left) measuring and (Right) modifying/updating the measurement setup.
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Sound Level Meter Software – BZ-7222 All Type 2250s and Type 2270s come with the Sound Level Meter Software enabled. This makes your analyzer into a versatile broadband SLM; the software complies with the latest international standard (IEC 61672–1) as well as previous international and national standards. For a complete list of measured parameters, see Specifications. The standard package allows you to document your measurements with written notes and voice annotations.
PAGE 8
Tone Assessment – BZ-7231 Fig. 10 Tone Assessment BZ-7231 showing 1/3-octave bands with audible tones over a set limit (identified by the blue dots) Tone Assessment (optional application) identifies any 1/3-octave bands with audible tones above a set limit. The assessment is based on the band’s prominence versus adjacent bands. The adjustment is the penalty to add to LAeq. Annoying tones in the spectrum may be assessed according to the ISO 1996 standard.
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Logging in the Field Fig. 12 Placing an All-weather Case on location Unattended measurements require protection against weather and unauthorised access, and the All-weather Case Type 3535-A fills the bill. Lightweight and robust, it will house a Type 2250-H Hand-held Analyzer and supply it with battery power for up to 90 hours of operation. A wide range of optional accessories are available to tailor the system capability to the logging task. Outdoor Microphone Type 4952 is shown in Fig. 12.
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A periodic report is similar to the Measurement Total of the Logging software, except it is made periodically. It is useful for analysing sound levels over extended periods. If you combine periodic reports with leveltriggered event markers and Signal Recording Option BZ-7226, you have an overview as well as a focus on essential details.
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Feature Back-erase – last 5 seconds of measurement data 120+ dB Dynamic Range – no need for range switching Sound levels up to 140 dB with supplied Microphone Type 4189 Sound levels up to 152 dB using Microphone Type 4191 IEC/ANSI SLM standards Type/Class 1 Frequency weightings A, B, C, Z (linear) and time weightings F, S, I Free-field/diffuse-field correction Automatic windscreen detection and correction Preset time start/stop Multi-language user interface Context-sensitive help Voice, metadata and text an
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Compliance with Standards CE-mark indicates compliance with the EMC Directive and Low Voltage Directive. C-Tick mark indicates compliance with the EMC requirements of Australia and New Zealand. Safety EN/IEC 61010–1, ANSI/UL 61010–1 and CSA C22.2 No.1010.1: Safety requirements for electrical equipment for measurement, control and laboratory use. EMC Emission EN/IEC 61000–6–3: Generic emission standard for residential, commercial and light industrial environments.
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INPUT SOCKET (2 – TYPE 2270 ONLY) Connector: Triaxial LEMO Input Impedance:  1 M Direct Input: Max. input voltage: ± 14.14 Vpeak CCLD Input: Max. input voltage: ± 7.07 Vpeak CCLD Current/voltage: 4 mA/25 V Storage TRIGGER SOCKET Connector: Triaxial LEMO Max. Input Voltage: ± 20 Vpeak Input Impedance: > 47 k Precision: ± 0.1 V USB MEMORY STICK For store/recall of measurement data OUTPUT SOCKET Connector: Triaxial LEMO Max. Peak Output Level: ± 4.
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Software Specifications – Sound Level Meter Software BZ-7222 For Display and Storage Start Time Stop Time Overload % Elapsed Time LXeq LYeq LXE LYE LCeq-LAeqk LXSmax LXFmax LXImax LYSmax LYFmax LYImax LXSmin LXFmin LXImin LYSmin LYFmin LYImin LXIeq LYIeq LAIeq-LAeq LAFTeq LAFTeq-LAeq Time Remaining Lep,d Lep,dv E Input Dose Proj. Dose Lvpeak CHANNELS (Type 2270 only) All measurements are made from either Ch.1 or Ch.
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Measurement Display and Control Annotations MEASUREMENT DISPLAYS SLM: Measurement data displayed as numbers of various sizes and one quasi-analog bar Measured data are displayed as dB values, housekeeping data as numbers in relevant format.
PAGE 16
Software Specifications – Frequency Analysis Software BZ-7223 The specifications for BZ-7223 include the specifications for Sound Level Meter Software BZ-7222. BZ-7223 adds: Standards Conforms with the following National and International Standards: • IEC 61260 (1995–07) plus Amendment 1 (2001– 09), 1/1-octave Bands and 1/3-octave Bands, Class 0 • ANSI S1.11–1986, 1/1-octave Bands and 1/3-octave Bands, Order 3, Type 0–C • ANSI S1.
PAGE 17
Software Specifications – Logging Software BZ-7224 The specifications for BZ-7224 include the specifications for Sound Level Meter Software BZ-7222.
PAGE 18
Software Specifications – Signal Recording Option BZ-7226 Signal Recording Option BZ-7226 is enabled with a separate license. It works with all the software for Type 2250/2270: Sound Level Meter, Frequency Analysis, Logging Software, Enhanced Logging Software and Reverberation Time Software For data storage, Signal Recording requires: • SD Card • USB Memory Stick RECORDING FORMAT The recording format is 16-bit wave files (extension .
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Software Specifications – Measurement Partner Suite BZ-5503 BZ-5503 is included with Type 2250/2270 for easy synchronisation of setups and data between PC and Type 2250/2270.
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Software and Accessories Available Separately SOFTWARE MODULES BZ-7223 Frequency Analysis Software BZ-7224 Logging Software (including memory card) BZ-7225 Enhanced Logging Software (including memory card) BZ-7225-UPG Upgrade from Logging Software BZ-7224 to Enhanced Logging Software BZ-7225 (does not include memory card) BZ-7226 Signal Recording Option BZ-7227 Reverberation Time Software BZ-7228 Building Acoustics Software BZ-7229 Dual-channel Building Acoustics Software (Type 2270 only) BZ-7230 FFT Softwa