Product data

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PRODUCT DATA

Type 2250 is the innovative, 4th generation, hand-held

analyzer from Brüel & Kjær. 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 ex-

cellent ergonomics and attractive design.

Type 2250 can host a number of software modules,

including frequency analysis, logging (profiling) and re-

cording of the measured signal. These are available

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

configured instrument from the factory.

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. As a result, you get the functionality you need

now, plus the option of opening up for more functionality

later – and your investment is securely protected.

Uses and Features

USES

• Environmental noise assessment and monitoring

• Occupational noise evaluation

• 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

• Analysis of time histories for broadband parameters

and spectra (Logging)

• Documentation of measurements using text and

voice annotations

• Documentation of measurements through recording

of measured sound

FEATURES

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

• Data storage on plug-in memory-cards

• Standard USB (On-the-Go) computer interface

• Dynamic range in excess of 120 dB

• 3 Hz – 20 kHz broadband linear frequency range

• Real-time frequency analysis in 1/1- or 1/3-octave

bands

• Broadband and spectral data can be logged to obtain

a time history for later analysis

• Sound recording of measured signal during all or

parts of a measurement

• Personal measurement, display and job setup

• PC software included for setup, archiving, export and

reporting

• Automatic detection of, and correction for,

windscreen

• Robust and environmentally protected (IP44)

Hand-held Analyzer — Type 2250

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

Logging Software BZ 7224 and Sound Recording Option BZ 7226

Summary of content (16 pages)

PAGE 1
PRODUCT DATA Hand-held Analyzer — Type 2250 Sound Level Meter Software BZ 7222, Frequency Analysis Software BZ 7223, Logging Software BZ 7224 and Sound Recording Option BZ 7226 Type 2250 is the innovative, 4th generation, hand-held analyzer from Brüel & Kjær. 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.
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Type 2250 Hardware and Resident Software Introduction Type 2250 has generous hardware and software specifications creating an extremely flexible instrument to cover your current and future measurement and analysis needs, ranging, for example, from the traditional uses in assessing environmental and workplace noise to industrial quality control and development. Type 2250 is a technological platform for realising measurement applications in a compact and robust hand-held instrument.
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Fig. 1 Key features of Hand-held Analyzer Type 2250 Windscreen Microphone/Preamplifier Stage: • Falcon™ Range ½″ microphone and microphone preamplifier stage.
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• Sound Recording Option, which provides you with a uniquely versatile facility for attaching samples of the actually measured signal to your measurements. This option works with all software modules. The recording uses the measurement transducer, while voice annotations (standard in all modules) use a separate commentary microphone.
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Fig. 2 Typical display when measuring Selected Project Template (including display and measurement set-up) Status field: • Path and name of current project • Immediate textual feedback when pressing the keys • Information on measurement status View area: • Contains all the parameters and results in numerical or graphical format • More than one view can be used for displaying the information • Select view using the View Tabs at bottom of view area View tabs Fig.
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You can view any quantity being measured, either during your measurement, or at any time later. This also includes data transferred to a PC. In all configurations, Type 2250 offers a variety of views of the same measurement. These views have no impact on the measurement, but they allow you to see exactly what you want, without interfering with any data.
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Voice annotations are recorded using a separate commentary microphone when the commentary pushbutton is pushed and held. Voice annotations and notes can be attached before, during and after the measurement. Spoken comments during the measurement should, of course, be made during a pause or with the microphone placed at a distance using an extension cable. These unique features allows you to document your measurement (where, when, how, etc.,) and always have this information attached to the measurement.
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Logging Software – BZ 7224 Fig. 8 Logged values, displayed as a profile. Note that a text annotation (left) and a voice annotation (right) are attached With the optional Logging Software enabled, Type 2250 becomes a versatile instrument for obtaining time histories. The Logging Software allows you to select freely among the broadband parameters and log them at intervals from 1 s to 24 h. At the same time LAeq and/or LAF can be logged at 100 ms intervals.
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• All broadband parameters, one 100 ms parameter, all 1/3-octave spectra: 30 Mbyte • All broadband parameters with full statistics: 51 Mbyte • All broadband parameters, one 100 ms parameter, all 1/3-octave spectra, full statistics: 80 Mbyte Space needed for annotations and recordings must, of course be added to this. As a guideline, 10 s of voice annotation requires approx. 312 kB.
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Overview of Type 2250 Software Features The table below presents a summary of the features of each of the software modules available with Type 2250. See Specifications for details.
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Type 2250 PC Software – Utility Software for Hand-held Analyzers BZ 5503 Utility Software for Hand-held Analyzers BZ 5503 is an archiving tool for Type 2250 data and setups, and functions as the link between Type 2250 and post-processing or reporting software on a PC.
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Some may have impulse or pure tone penalties, depending on which measurement standard you choose, for example, ISO 1996, DIN 45 645, TA Lärm, NF S 31-010, or BS 4142. (See Product Data BP 1752.) Protector Type 7825 calculates noise exposure according to ISO 9612.2. For situations where only workpoint noise measurements are available, Protector can combine these measurements with a profile of a person’s movements, simulating their personal noise exposure. (See Product Data BP 1717.
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Current Requirement: min. 1.5 A Power Consumption: < 2.5 W, without battery charging, < 10 W when charging Cable Connector: LEMO Type FFA.
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MEASUREMENT CONTROL Manual: Manually controlled single measurement Automatic: Pre-set measurement time from 1 s to 24 hours in 1 s steps Manual Controls: Reset, Start, Pause, Back-erase, Continue and Store the measurement manually BACK-ERASE The last 5 s of data can be erased without resetting the measurement MEASUREMENT STATUS On Screen: Information such as overload and running/paused are displayed on screen as icons Traffic Lights: Red, yellow and green LEDs show measurement status and instantaneous overl
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Y-axis: Range: 5, 10, 20, 40, 60, 80, 100, 120, 140 or 160 dB. Auto zoom or auto scale available X-axis: Scroll facilities Cursor: Readout of measurement data at selected time Software Specifications – Sound Recording Option BZ 7226 Sound Recording Option BZ 7226 is enabled with a separate license. It works with all the software described in this data sheet: Sound Level Meter, Frequency Analysis, and Logging Software. RECORDED SIGNAL Unweighted signal from the measurement transducer.
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Ordering Information PACKAGES Type 2250 A Hand-held Analyzer with Sound Level Meter Software Type 2250 B Hand-held Analyzer with Sound Level Meter and Frequency Analysis Software Type 2250 C Hand-held Analyzer with Sound Level Meter and Logging Software Type 2250 D Hand-held Analyzer with Sound Level Meter, Frequency Analysis and Logging Software SOFTWARE BZ 7223 BZ 7224 BZ 7226 MODULES AVAILABLE SEPARATELY 2250 Frequency Analysis Software 2250 Logging Software Sound Recording Option COMPONENTS INCLUDED W