BRUEL & KJAER 4185 User manual

USER MANUAL
EarSimulatorforTelephonometry
Type4185
BR 2309 – 11
English
www.bksv.com ©Brüel&Kjær.Allrightsreserved.
ËBR-2309---CÎ BR 2309 – 11

BR 230911
September2015
www.bksv.com
EarSimulatorforTelephonometry
Type4185
UserManual

HealthandSafetyConsiderations
This apparatus has been designed and tested
in accordance with IEC/EN 61010–1 and
ANSI/UL 61010–1
Safety Requirements for
Electrical Equipment for Measurement,
Control and Laboratory Use
. This manual
contains information and warnings which
must be followed to ensure safe operation and
to retain the apparatus in safe condition.
SafetySymbolsandSignalWords
Used
The apparatus will be marked with
this symbol when it is important that
you refer to the associated danger
or warning statement given in this
manual
The manual uses this symbol when a
danger or warning statement is
applicable
Hazardous Voltage/Electricity. Both
the apparatus and manual use this
symbol when there is a risk for shock
or electrocution
Hot Surface. This manual will use
this symbol when there is a risk for
burning or scolding
Earth (Ground) Terminal. The
apparatus will be marked with this
symbol when applicable
Protective Conductor Terminal. The
apparatus will be marked with this
symbol when applicable
Alternating Current. The apparatus
will be marked with this symbol
when applicable
Danger Signals an imminent hazardous
situation, which, if not avoided, will
result in death or serious injury
Warning Signals a possibly hazardous
situation, which, if not avoided, will
result in death or serious injury
Caution Signals a hazardous situation,
which, if not avoided, could result in
minor or moderate injury or
damage to the apparatus
Notice Signals a situation or practice that
requires attention, but does not
directly result in personal injury if
ignored
RisksandHazards
ExplosionHazards
Danger: The apparatus is not
designed to be used in potentially
explosive environments. It should
not be operated in the presence of
flammable liquids or gases
ElectricalHazards
Warning: 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
Caution: Switch off all power to equipment
before connecting or disconnecting
their digital interface. Failure to do
so could damage the equipment

MechanicalHazards
Caution: 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
WasteHandling
Brüel & Kjær complies with the EU’s Waste
Electrical and Electronic Equipment
(WEEE) Directive, which issues the
following waste handling instructions:
• Do not dispose of electronic
equipment or batteries as
unsorted municipal waste
• It is your responsibility to
contribute to a clean and healthy
environment by using the
appropriate local return and
collection systems
• Hazardous substances in
electronic equipment or batteries
may have detrimental effects on
the environment and human
health
• The symbol shown to the left
indicates that separate collection
systems must be used for any
discarded equipment or batteries
marked with that symbol
• Waste electrical and electronic
equipment or batteries may be
returned to your local
Brüel & Kjær representative or to
Brüel & Kjær Headquarters for
disposal

Brüel & Kjær has made every effort to ensure
the accuracy of the information contained in
this document. No responsibility is accepted
for any errors or omissions herein. It is the
responsibility of the user to ensure compliance
with any legal or statutory requirements in the
country of use. Data may change, as well as
legislation, therefore you are advised to obtain
copies of the most recently issued applicable
regulations, standards and guidelines.
All descriptions, illustrations and any other
information relating to the product are made by
way of general description, are approximate
only and for the general guidance and
information of the user. They cannot be
construed to imply representation or warranty
as to their accuracy, currency or completeness
and are not intended to form the basis of any
contract.
The information in this document does not
constitute a warranty, representation or
guarantee concerning the suitability or
performance of the product.
Brüel & Kjær shall not be liable for any loss
whether direct, indirect, incidental or
consequential arising from the use of or
reliance upon any of the content of this
document, regardless of whether such content
has been accurate or complete. Brüel & Kjær
will not pay any damages whether for loss or
injury, punitive or otherwise, because of use of
or reliance upon any of the content in this
document.
Brüel & Kjær and all other trademarks, service
marks, trade names, logos and product names
are the property of Brüel & Kjær or a third-
party company. Nothing in this document may
be construed as granting, by implication, or
otherwise any license or right to use any of the
trademarks without a prior written permission
of Brüel & Kjær or the owner of such
trademark.
© Brüel & Kjær. All rights reserved.
Brüel & Kjær Sound & Vibration
Measurement A/S
DK-2850 Nærum · Denmark
For service and support, contact your nearest
Brüel & Kjær Customer Care support team:
Headquarters: [email protected],
[phone]
China (Beijing): [phone]
France: [email protected]m,
[phone]
Germany: bkservic[email protected],
[phone]
Italy: [email protected], [phone]
Japan: [email protected], [phone]
The Americas: [email protected],
[phone]
Spain: [email protected],
[phone]
UK & Ireland: ukservi[email protected],
[phone]
Go to www.bksv.com/contact for contact
information to our other global offices.

Contents
CHAPTER1
Description.........................................................................................1
1.1 What’sintheCase ........................................................................2
1.2 TypicalConfiguration ....................................................................4
CHAPTER2
Calibration..........................................................................................5
2.1 AcousticImpedance......................................................................5
2.2 FrequencySensitivityResponse....................................................6
2.3 AbsoluteSensitivity.......................................................................8
2.4 CalibratingType4185 ...................................................................9
CHAPTER3
HandlingtheEarSimulator............................................................... 11
3.1 AssemblingType4185 ................................................................11
3.2 AdjustingtheEarSimulatorForce ..............................................12
3.3 ProtectingtheEarSimulator.......................................................13
3.4 MoreInformation .......................................................................13
CHAPTER4
AcousticPropertiesoftheCoupler ................................................... 15
4.1 EquivalentDiagrams ...................................................................15
CHAPTER5
Specifications ...................................................................................19
CHAPTER6
Glossary ...........................................................................................21

1EarSimulatorforTelephonometryType4185
UserManual
Chapter1
Description
Fig.1.1 EarSimulatorforTelephonometryType4185
Ear Simulator for Telephonometry Type 4185 isdesigned for telephone
measurements requiring an IEC 60318–1 coupler. Type 4185 converts
the acoustic signal from an earphone into an electrical equivalent that
takes into account the response of the human ear. It enables
electroacoustic measurements on telephone handsets to be carried
out under well-defined acoustical conditions.
Type 4185 fulfils the requirements of Rec. ITU-T P.57 Type 1 and
IEC 60318–1 as well as all relevant ITU-T, IEEE and BS
recommendations.

What’sintheCase
2EarSimulatorforTelephonometryType4185
UserManual
1.1 What’sintheCase
In the carrying case, you receive all the necessary parts for Ear Simulator
for Telephonometry Type 4185:
Fig.1.2 PartsofType4185
• Low-noise Cable AO-0122-D-030, for the miniature sound source (A)
• 4 × Soft Seal YJ-0431 (B)
• Adaptor Sleeve for Acoustic Coupler DB-1164 (C)
• Microphone Cable AO-0419, LEMO to LEMO (D)
•½Condenser Microphone Type 4192 attached to ½Microphone
Preamplifier Type 2669 (E)
• BNC Input Adaptor JP-0145 (F)
• Ring for Acoustic Coupler DB-1160 attached to Acoustic Coupler
UA-1110*(G)
•CouplerDataDisk(H)
*Acoustic Coupler UA-1110 is delivered with 1 × Soft Seal YJ-0431 and
1 × Black Collar YJ-0430 already attached
A
BC
D
E
FGH