B&K 2250 Light User Manual download pdf

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.

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Summary of Contents

Page 1 - PRODUCT DATA

PRODUCT DATAType 2250 and Type 2270 are the innovative, 4th generationhand-held analyzers from Brüel & Kjær. The analyzers’ easy,safe and clever d

Page 2 - Introduction

10A periodic report is similar to the Measurement Total of the Logging software, except it is made periodically.It is useful for analysing sound level

Page 3 - Alerting the Operator

11FeatureSLM SoftwareFrequency Analysis SoftwareLoggingSoftwareEnhanced Logging SoftwareBack-erase – last 5 seconds of measurement data120+ dB Dynam

Page 4 - Using the Platform

12Compliance with Standards Hand-held Analyzer Type 2250/2270 PlatformSpecifications apply to Type 2250/2270 fitted with Microphone Type 4189 and Micr

Page 5 - Dual-channel Measurement

13INPUT SOCKET (2 – TYPE 2270 ONLY)Connector: Triaxial LEMOInput Impedance:  1MDirect Input: Max. input voltage: ± 14.14 VpeakCCLD Input: Max. input

Page 6 - Data Display

14Software Specifications – Sound Level Meter Software BZ-7222Conforms with the following National and International Standards:• IEC 61672–1 (2002–05)

Page 7

15Measurement Display and ControlMEASUREMENT DISPLAYSSLM: Measurement data displayed as numbers of various sizes and one quasi-analog barMeasured data

Page 8 - Logging Software – BZ-7224

16Software Specifications – Frequency Analysis Software BZ-7223The specifications for BZ-7223 include the specifications for Sound Level Meter Softwar

Page 9 - Metadata the Easy Way

17Software Specifications – Logging Software BZ-7224The specifications for BZ-7224 include the specifications for Sound Level Meter Software BZ-7222.

Page 10 - Overview of Software Features

18Software Specifications – Signal Recording Option BZ-7226Signal Recording Option BZ-7226 is enabled with a separate license. It works with all the s

Page 11

19Software Specifications – Measurement Partner Suite BZ-5503BZ-5503 is included with Type 2250/2270 for easy synchronisation of setups and data betwe

Page 12

2Applications and HardwareIntroductionTypes 2250 and 2270 have generous hardware and software specifications. They deliver an extremelyflexible instru

Page 13 - User Interface

HEADQUARTERS: Brüel & Kjær Sound & Vibration Measurement A/S · DK-2850 Nærum · DenmarkTelephone: +45 7741 2000 · Fax: +45 4580 1405 · www.bksv

Page 14 - Analysis

3Post-processing SoftwareMeasurement Partner Suite BZ-5503 is the next step in evolution from Utility Software BZ-5503, and itsstandard configuration

Page 15

4Using the PlatformGreat care has been taken to ensure that the hardware is ergonomically optimal in field use. Similarly, thesoftware design has focu

Page 16

5Fig. 3 Key features of Hand-held Analyzer Type 2270Dual-channel MeasurementFig. 4 Setup for dual-channel measurements as used with Dual-channel Build

Page 17

6Display CapabilitiesAs a user, you have several ways of tailoring the display to suit your specific needs. However, standarddisplay elements are used

Page 18

7Sound Level Meter Software – BZ-7222All Type 2250s and Type 2270s come with the Sound Level Meter Software enabled. This makes youranalyzer into a ve

Page 19 - Ordering Information

8Fig. 10 Tone Assessment BZ-7231 showing 1/3-octave bands with audible tones over a set limit (identified by the blue dots)Tone Assessment – BZ-7231To

Page 20 - Service Products

9Fig. 12 Placing an All-weather Case on locationLogging in the FieldUnattended measurements require protection against weatherand unauthorised access,