BRUEL & KJAER 2260 User manual

English BB0955-13
Modular Precision Sound Analyzer
Type 2260
User Manual
bb095513.book Page 1 Tuesday, April 9, 2002 1:42 PM

Revision April 2002
Brüel & Kjær BB0955-13
Modular Precision Sound Analyzer
Type 2260
From serial no. 1772136
bb095513.book Page i Tuesday, April 9, 2002 1:42 PM

Brüel & KjærModular Precision Sound Analyzer Type 2260
User Manual
Trademarks
IBM is a registered trademark of International Business Machines
Inc., USA.
Microsoft is a registered trademark of Microsoft Corporation in the
United States and/or other countries.
Copyright © 1994 – 2002, Brüel&Kjær A/S
All rights reserved. No part of this publication may be reproduced
or distributed in any form, or by any means, without prior consent
in writing from Brüel & Kjær A/S, Nærum, Denmark.
End User Licence Agreement
This product contains software licensed from Microsoft®Corpora-
tion.
●The Modular Precision Sound Anlayzer Type 2260 contains intellectual
property, that is, software programs, that are licensed for use by the
end user customer (hereinafter “End User”).
●This is not a sale of such intellectual property.
●The End User shall not copy, disassemble or reverse compile the soft-
ware program.
●The software programs are provided to the end user “as is” without
warranty of any kind, either expressed or implied, including, but not
limited to, warranties of merchantability and fitness for a particular
purpose. the entire risk of the quality and performance of the software
program is with you.
●Microprocessor and Memory Distribution Limited and its suppliers
shall not be held to any liability for any damages suffered or incurred
by the end user (including, but not limited to, general, special, conse-
quential or incidental damages including damages for loss of business
profits, business interruption, loss of business information and the
like), arising from or in connection with the delivery, use or perform-
ance of the software program.
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BB0955-13 iii Modular Precision Sound Analyzer Type 2260
User Manual
4
1
Contents
Describes the analyzer, its concept and how to use this manual
How to power the analyzer, switch it on and off and find your way
around the menu system and help. Also includes the general
operating principles of the analyzer
How to prepare the analyzer for measuring – turning it into an
analyzer
How to manage your files including copying and deleting files, and
creating directories
How to set up the analyzer for outputting to a printer or a computer
How to service and repair the analyzer
The specifications and information regarding other equipment
available for use with the analyzer’s platform
An overview of the analyzer platform’s menus
Introduction
2
Getting Started
3
Setting Up the Analyzer
Managing Files
5
Outputting to a Printer or Computer
6
Service and Repair
7
Specifications
8
Menu Overviews
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iv Brüel & KjærModular Precision Sound Analyzer Type 2260
User Manual
9Index
Fold
Out Keys, Display and Sockets
An overview of the analyzer’s pushkeys, display and sockets
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BB0955-13 1 Modular Precision Sound Analyzer Type 2260
User Manual
Chapter 1
Introduction
1.1 Welcome...................................................................................... 2
1.2 How the Analyzer Works...................................................... 3
1.3 Using Application Software................................................. 5
1.4 Using Memory Cards............................................................... 5
1.5 Operating the Analyzer......................................................... 5
1.6 How to Use this Manual........................................................ 7
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Chapter 1– Introduction
Welcome...
2Brüel & KjærModular Precision Sound Analyzer Type 2260
User Manual
1.1 Welcome...
The Concept
This manual is valid for two prod-
uct ranges:
●2260 Investigator™
●2260 Observer™
These are based on the same plat-
form and share the functions de-
scribed here. They are both Type
2260 Modular Precision Sound An-
alyzers, the only difference being
the range of applications they
support.
2260 Observer supports one-chan-
nel measurements of environmen-
tal noise and noise at work,
including real-time analyses of
sound, and measurements of re-
verberation time.
2260 Investigator in addition sup-
ports advanced one- and two-
channel applications such as
building acoustics, sound intensi-
ty measurements, and FFT analy-
sis with pure tone detection.
A 2260 Observer can be factory
upgraded to a 2260 Investigator.
Fig.1.1 Modular Precision Sound
Analyzer Type 2260
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Chapter 1– Introduction
How the Analyzer Works
BB0955-13 3 Modular Precision Sound Analyzer Type 2260
User Manual
Portable Yet Powerful
Experienced users and beginners alike will appreciate having
the powerful hand-held Modular Precision Sound Analyzer
Type2260 both for outdoor field work and back at the labora-
tory. In short, the Modular Precision Sound Analyzer Type2260
provides easy-to-use solutions for the most complex applica-
tion problems.
1.2 How the Analyzer Works
A Dedicated Sound and Vibration Analysis Platform
Modular Precision Sound Analyzer Type2260 (see block dia-
gram in Fig.1.2) is a programmable platform for a dual-channel,
real-time, hand-held analyzer. With one of its installed software
applications active, it takes input from the acoustic or vibra-
tion front-end (and/or from the input sockets on its base) and
sends the 2 input signals through filters to an A/D converter.
The application software processes the digital signal and sends
output signals to a wide variety of output devices. Directly to,
for example, the 192´128pixel LCD screen or, via the D/A
convertor, to one of the output or interface sockets.
Data Storage and Transfer
Data can be stored and transferred onto credit-card sized PC-
MCIA memory cards for storage or transfer to computer. Data
can, of course, also be transferred to a computer via the serial
interface.
Post Measurement Software for a Computer
Once measured, data is transferred to a computer. One of
Brüel&Kjær’s WindowsÒ-based software packages can be used
for post-processing and reporting (Noise Explorer™ Type7815
for data management and reporting, Evaluator™ Type7820 for
Community Noise calculations, Qualifier™ Type7830 for Build-
ing Acoustics measurement or Protector™ Type7825 for cal-
culating Personal Noise Exposure). Alternatively, data can be
exported to other standard software packages such as word-
processors and spreadsheets.
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Chapter 1– Introduction
How the Analyzer Works
4Brüel & KjærModular Precision Sound Analyzer Type 2260
User Manual
Accessories
Brüel&Kjær also produces a range of accessories for use with
each application software. These accessories can be those
necessary for measurement, or items which facilitate your
measurements (see also section 7.2).
Fig.1.2 Block diagram of Modular Precision Sound Analyzer Type 2260
941702e
Input
Switch
Matrix
In
Out (Calibration)
AC In/Out
CH2
Weighting
Filters
Weighting
Filters
Gain
Gain
Overload
Overload
Digital
Audio In Digital Audio Ou
t
DSP
A/D D/A
Digital
Audio RX Digital Audio TX
Main
Processor
CH1
CH2
Attenuator
CH1
Aux. Ou
t
Preamplifier
CH2
CH1
In
Out (Calibration)
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Chapter 1– Introduction
Using Application Software
BB0955-13 5 Modular Precision Sound Analyzer Type 2260
User Manual
Support and After-sales Service
Brüel&Kjær provides a high level of support and after-sales
service in the rare event of problems, and holds customer
workshops and training for both beginners and experts alike.
1.3 Using Application Software
Application software, together with appropriate accessories,
changes the use of the Modular Precision Sound Analyzer Type
2260 into a dedicated analyzer.
The analyzer can have several software applications installed
in it at the same time. This allows you to change from one
application to another quickly and easily. Since many applica-
tions can use the same front end transducers, the Modular
Precision Sound Analyzer Type2260 gives you a highly flexible
analysis system.
1.4 Using Memory Cards
Memory cards can be used as extra memory for data storage
or for transferring data to a computer or another Modular
Precision Sound Analyzer Type2260.
Memory Cards are available from Brüel&Kjær (for example
the UL1008 with a capacity of 32Mbyte).
1.5 Operating the Analyzer
Hard Keys and Soft Keys
You use two types of push keys to operate a Modular Precision
Sound Analyzer Type 2260:
●Hard keys
●Soft keys
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