BRUEL & KJAER 3015 User manual

Brüel&Kjær
BI5034–12e
Technical
Documentation
WORLD HEADQUARTERS: DK-2850 Nærum • Denmark •
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25 kHz Input Module Type 3015
Service Manual

0−2Brüel & Kjær25kHz Input Module Type 3015
Service Manual
Proprietary: Authorized Brüel & Kjær Personnel Only

April 1997
BI5034–12e
Brüel & Kjær 25kHz Input Module Type 3015
Service Manual
25kHz Input Module
Type 3015
Service Manual
Valid from serial number 1 626 743

0−2Brüel & Kjær25kHz Input Module Type 3015
Service Manual
Safety Considerations
This apparatus has been designed and tested in accordance with IEC Publication
348, Safety Requirements for Electronic Measuring Apparatus, and has been supplied
in safe condition. This Guide contains information and warnings which must be fol-
lowed by the user to ensure safe operation and to retain the apparatus in safe
condition. Special note should be made of the following:
Safety Symbols
See the associated warning statements given in the User Guide.
Chassis Terminal
Safety Earth Terminal
Hazardous Voltage
Warnings
This is a CISPR II, Class A product. In a domestic environment this product may
cause radio interference in which case the user may be required to take adequate
measures
Switch off all power to equipment before connecting or disconnecting their digital
interface. Failure to do so could damage the equipment.
Whenever it is likely that the correct function or operating safety of the apparatus
has been impaired, it must be made inoperative and be secured against unintended
operation.
Any adjustment maintenance and repair of the open apparatus under voltage must
be avoided as far as possible and, if unavoidable, must be carried out only by trained
service personnel.
Copyright © 1997, Brüel&Kjær Sound and Vibration Measurement 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 Sound
and Vibration Measurement A/S, Nærum, Denmark.

25kHz Input Module Type 3015
Service Manual
BI5034–12e 0−3
Contents
1. General Information.................................................................................................. 1–1
1.1 Introduction................................................................................................................. 1–2
1.2 Edition Number........................................................................................................... 1–2
1.3 Safety ........................................................................................................................... 1–3
1.4 Service Policy and FRP Number ................................................................................ 1–3
1.5 Special Tools and Equipment..................................................................................... 1–3
2. Service Note...................................................................................................................... 2–1
2.1 On-line Editions of the Service Manual..................................................................... 2–2
2.2 Printed Editions of the Service Manual..................................................................... 2–2
3. Checking Procedure................................................................................................... 3–1
3.1 Introduction................................................................................................................. 3–2
3.2 Checking Procedure .................................................................................................... 3–2
Hardware Modification .......................................................................................... 3–2
Functionality........................................................................................................... 3–2
4. Mechanical Parts.......................................................................................................... 4–1
4.1 Chassis Parts............................................................................................................... 4–2
4.2 Spare Parts.................................................................................................................. 4–3

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25kHz Input Module Type 3015
Service Manual
BI5034–12e 1−1
Chapter 1
General Information

Chapter 1 — General Information
Introduction
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1.1 Introduction
Type 3015 is a 25kHz input module for use in Type 3550, Type 3551 or Type 3560
(PULSE) Systems. It has inputs for preamplifier and accelerometer, and a direct
input. It includes the necessary amplifiers, attenuators and filters for conditioning
of the input signal, and finally an A/D-converter.
1.2 Edition Number
If any major changes are made to the instrument and/or Service Manual, a new
edition of the Service Manual will be released. Any new edition can be recognised
by the Literature Number (BI5034-xx) given at the bottom of odd numbered pages.
The serial number from which each edition is valid is printed in the Frontispiece of
this Service Manual.
Information concerning minor changes will be released in the form of a Service
Note which is dealt with in section 2.1.
Fig.1.1 Type 3015

Chapter 1 — General Information
Safety
25kHz Input Module Type 3015
Service Manual
BI5034–12e 1−3
1.3 Safety
Type 3015 has been designed and tested in accordance with IEC Publication 348,
Safety Requirements for Electronic Measuring Apparatus, and has been supplied in
safe condition.
Any work done on the instrument when open must be done by a qualified person
who is aware of the hazards involved.
Note: The word WARNING denotes a hazard. It calls attention to a procedure,
practice, or like, which, if not correctly performed or adhered to, could result in
personal injury.
1.4 Service Policy and FRP Number
Type 3015 is a Field Replaceable Part (FRP). To assure economical reuse, it is
important that no attempt is made to repair it locally. If such an attempt is made,
the price of an exchange FRP is 100% the price of a new one.
Therefore, DO NOT ATTEMPT ANY REPAIR to Type 3015. Order the module as
an FRP using order number FR0001.
1.5 Special Tools and Equipment
Type 3015 must always be checked as part of a multichannel system incorporating
Acquisition Front-end Type 2825 or Multichannel Data Acquisition Unit Type 2816.
No other special conditions exist.

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25kHz Input Module Type 3015
Service Manual
BI5034–12e 2−1
Chapter 2
Service Note

Chapter 2 — Service Note
On-line Editions of the Service Manual
25kHz Input Module Type 3015
Service Manual Brüel & Kjær
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2.1 On-line Editions of the Service Manual
Note: An on-line edition of a service manual is one that has not been published in printed
form. On-line manuals have the letter “e” appended to the literature number (“e”
denotes “electronic”).
From time to time some minor changes may be made to improve the performance
and serviceability of Type 3015. All information concerning these changes, or any
other changes to the service manual, are included in the latest version of the on-
line source document.
This Service Note section contains a history of the changes when any are made.
2.2 Printed Editions of the Service Manual
From time to time some minor changes may be made to improve the performance
and serviceability of Type 3015. All information concerning these changes, or any
other changes to the Service manual, will be released in the form of a Service Note.
Note: Printed Service Notes are renewed as a whole, meaning:
Discard the previous Service Note every time you receive a new one
The new edition of the Service Note must be placed in the binder in this section.
The organisation of the Service Note is as in the Service Manual, i.e. the Service
Note is divided into sections with names corresponding to the section name in the
Service Manual.

25kHz Input Module Type 3015
Service Manual
BI5034–12e 3−1
Chapter 3
Checking Procedure

Chapter 3 — Checking Procedure
Introduction
25kHz Input Module Type 3015
Service Manual Brüel & Kjær
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3.1 Introduction
The checking procedure is performed on a fully assembled multichannel system
incorporating the Type 3015 module. The procedure enables you to verify that Type
3015 meets specifications. In the case of a fault appearing, exchange the board as
part of the FRP scheme see the System Service Manual, Chapter 1.
Refer to Chapter 4 if there is mechanical damage to the module.
3.2 Checking Procedure
3.2.1 Hardware Modification
If a Signal Output Module Type 5955 module is used in the system, input module
Type 3015 needs to have a wiring change made to it to allow analogue signals to
pass into Type 5955 from the backplane (rather than the other way round).
Check that the co-axial cables are routed as shown in Fig.3.1, but only if a Type
5955 is used in the system..
3.2.2 Functionality
Type 3015 can be tested using the BZ5076 Analog Hardware Test Program, or the
test program that is part of the PULSE system (refer to Chapter 5 of the PULSE
Installation Manual).

Chapter 3 — Checking Procedure
Checking Procedure
25kHz Input Module Type 3015
Service Manual
BI5034–12e 3−3
Fig.3.1 The co-axial cable routing on Type 3015, but only when the system contains a Signal Output
Module Type 5955
970183e
HF2
(ground)
HF1
Ground
INT1

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25kHz Input Module Type 3015
Service Manual
BI5034–12e 4−1
Chapter 4
Mechanical Parts

Chapter 4 — Mechanical Parts
Chassis Parts
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4.1 Chassis Parts
Fig.4.1 Exploded view of chassis parts
970158e
Red lead Yellow lead
Empty
8
9
98
65
7
42
3
1
Brüel & Kjær
BBB K

Chapter 4 — Mechanical Parts
Spare Parts
25kHz Input Module Type 3015
Service Manual
BI5034–12e 4−3
4.2 Spare Parts
Item Part No. Identification
1 ZN0349
UA1140 25 kHz Input Front Cover Set in- cluding Items 2-9
2 FA1085 Front Cover
3 GU1640 Distance Panel
4 YS9372 Retaining Screws
5 YM0334 Nut
6 YO0337 Washer
7 QV4056 LED with Leads
8 DH0269 House for Plug
9 XB0294 Code Tap
Table 4.1 Spare parts list

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