User Instructions - Dm

User Instructions - Dm
USER INSTRUCTIONS
THE DREAM™ SERIES
D-m CB model
Behind-the-ear
YOUR WIDEX HEARING AID
(To be filled out by the hearing care professional)




DREAM440
DREAM330
DREAM220
DREAM110
Programs:
 Master
 Audibility Extender
 Music
 Audibility Extender
 TV
 Audibility Extender
 Comfort
 Audibility Extender
 Reverse focus
 Audibility Extender
 Phone
 Audibility Extender
 Zen
 Audibility Extender
 Master + Zen
 Audibility Extender
 Master + Reverse focus
 Audibility Extender
 Master + Phone
 Audibility Extender
 Zen+
 Audibility Extender
Date
Your hearing care professional
2
CONTENTS
SYMBOLS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
THE HEARING AID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Acoustic indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
The battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Inserting the battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Removing the battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Battery drawer without a nail grip. . . . . . . . . . . . . . . . . . . 12
Low battery indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Turning the hearing aid on and off. . . . . . . . . . . . . . . . . . . . 14
Right/left identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Positioning the hearing aid . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Removing the hearing aid . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Volume adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Lost partner alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Switching between the listening programs . . . . . . . . . . . 26
Zen+ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Using a telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
The hearing aid. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
The microphone openings. . . . . . . . . . . . . . . . . . . . . . . . . . 29
ACCESSORIES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
IN CASE OF MALFUNCTION . . . . . . . . . . . . . . . . . . . . . . . 31
CARING FOR YOUR HEARING AID. . . . . . . . . . . . . . . . . . 33
WARNINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
ADVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Adapting to your hearing aids . . . . . . . . . . . . . . . . . . . . . . . 38
REGULATORY INFORMATION . . . . . . . . . . . . . . . . . . . . . . 40
ADDITIONAL PROGRAM FORMS . . . . . . . . . . . . . . . . . . . 60
3
SYMBOLS
The following symbols will be used throughout the
manual:
WARNING
Messages with this heading indicate serious adverse reactions,
potential safety hazards and inadequate performance of device.
CAUTION
Messages with this heading indicate/include information regarding any special care to be exercised.
Non-ionizing radiation.
Not for general waste.
4
THE HEARING AID
The illustration below shows the hearing aid without an
ear-set. The choice of ear-set solution depends on your
specific needs. Please refer to the separate ear-set user
manual.
1. Microphone openings
2. On/off function
3. Nail grip
4. LED & Right/Left identification
1
3
2
4
5
NOTE
In addition to these user instructions, a separate user manual is
provided describing the various ear-set solutions available for
your hearing aid: “Ear-sets for Widex BTE hearing aids”.
WARNING
This booklet and the manual “Ear-sets for Widex BTE hearing
aids” contain important information and instructions. Read
these booklets carefully before you start using the hearing aid.
NOTE
Your hearing aid, ear-set and accessories may not look exactly
as illustrated in this booklet. We also reserve the right to make
any changes considered necessary.
Intended use
The hearing aids are intended as air conduction
amplification devices to be used in everyday listening
environments. The hearing aids may be provided with
the Zen program intended to provide a relaxing sound
background (i.e. music/noise source) for adults who
desire to listen to such a background in quiet.
Indications for use
The devices are indicated for individuals with a range of
hearing loss severity from slight (16 dB HL to 25 dB HL)
to moderately severe (85 dB HL) and all hearing loss
configurations.
6
They are to be programmed by licensed hearing care
professionals (audiologists, hearing aid specialists, otolaryngologists) who are trained in hearing (re)habilitation as well as tinnitus management.
Description of device
Your hearing aid is used with an ear-set which consists
of a tube and an ear-tip or earmold. The hearing aid
uses a proprietary wireless technology, the WidexLink,
to enable communication between the left and the
right hearing aids, as well as between the hearing aids
and the DEX accessories.
Your hearing aid may be provided with a listening
program called Zen. It makes musical tones (and sometimes a rushing noise) in the background. These sounds
are shaped according to your hearing loss.
7
Acoustic indicators
The hearing aid may be set to produce a signal to
indicate the use of certain functions. The signal may
be a spoken message or tones. The signal can also be
deactivated.
Functions
Default
settings
Other
settings
Adjusting volume via remote control
Tone
Off
Confirming RC program key use
Clicking
sound
Off
Changing program via remote control
Message Tones/off
Starting up the hearing aid
Message Tone/off
Warning about low battery
Message 4 tones/off
Warning about lost partner
Off
Message
Service reminder
Off
Message
Note: “Warning about lost partner” can only be made available
in DREAM440.
8
The battery
We recommend zinc-air batteries. Use a size 10 battery
for the hearing aid.
To obtain replacement batteries, please consult your
hearing care professional. It is important to take note
of the expiration date and the recommendations on
the battery pack regarding disposal of used batteries.
Otherwise there is a risk that the battery life may be
reduced.
Inserting the battery
Before inserting a new battery into the
hearing aid, remember to remove the adhesive tab. Once the tab has been removed,
the battery will start functioning after a few
seconds.
CAUTION
Do not use batteries if there is a sticky residue from the tab or
other unwanted substance, as this can cause the hearing aid to
malfunction.
9
Use the nail grip to gently swing the battery drawer
open. Do not press the drawer beyond the open position.
Place the battery in the drawer as illustrated, so that the
plus (+) sign on the battery is facing towards you when
you hold the hearing aid as shown. You can use the battery magnet provided to steer the battery into place.
If the battery drawer does not close easily, the battery
is incorrectly inserted.
When changing battery, it is a good idea to hold the
hearing aid over a table.
10
Removing the battery
1. Open the battery drawer as previously described.
Place the hearing aid on the provided cloth on a
clean, plane surface and turn it as illustrated.
2. Supporting the drawer with your finger, use the
battery magnet provided to push the battery out of
the battery drawer from the minus side.
1
2
11
Battery drawer without a nail grip
The hearing aid may be provided with
a battery drawer without a nail grip,
which means that you need a tool to
open the battery drawer. This type of
drawer can be a good choice if the
hearing aid is worn by a child. A special
tool for opening the drawer will be
included with this drawer.
The battery drawer is opened as illustrated.
12
Low battery indication
An acoustic indicator will sound when the battery
is nearly exhausted, unless this function has been
disabled (see page 8). We recommend that you always
have a spare battery with you.
WARNING
Never leave an exhausted battery in the hearing aid. Exhausted
batteries may leak, damaging the hearing aid.
WARNING
Your hearing aid may stop functioning, for instance if the
battery is exhausted. You should be aware of this possibility, in
particular when you are in traffic or are otherwise dependent
on warning signals.
13
Turning the hearing aid on and off
The battery drawer of the hearing aid also functions as
the on/off switch.
Close the battery drawer to turn on the
hearing aid. An acoustic indicator will
indicate that the hearing aid has been
switched on unless this function has
been disabled.
Open the battery drawer completely
to turn off the hearing aid.
Note: Another way to verify that the hearing aid is
turned on is to cup it in your hand. If it is on, it will
whistle.
Please remember to turn off the hearing aid when it is
not in use. Remove the battery if the hearing aid will not
be used for several days.
14
Right/left identification
If you wear hearing aids on both ears,
the hearing aids can be provided with
colored marks (red mark = right and
blue mark = left).
The arrow shows the position of the
identification mark.
15
Positioning the hearing aid
Insert the earpiece in the ear canal while holding the
lower part of the tube. It may help to pull the outer ear
backwards and upwards with the opposite hand.
Place the hearing aid behind the ear, so that the hearing
aid and tube rest comfortably on the ear, close to your
head.
The illustrations show an open ear-tip. For further information on ear-tip/earmold types, anchors and procedures, see the separate ear-set user manual provided.
16
Removing the hearing aid
Remove the hearing aid from its position behind the
ear.
Carefully pull the earpiece out of the ear canal, while
holding the lower part of the tube. If the earpiece is
provided with an extraction cord, take hold of this and
carefully pull the ear-tip out of the ear canal.
17
Volume adjustment
The hearing aid volume is adjusted automatically in
accordance with your sound environment.
If you have a remote control, you can also adjust the
volume manually or mute your hearing aid. Any adjustment of the volume setting will be canceled when your
hearing aid is turned off, or when you change program.
Depending on hearing aid features and setting, any
change you make will affect both hearing aids.
To alter the increments in which the volume is increased
or decreased, consult your hearing care professional.
If you have a remote control, please also refer to the
user instructions for this.
CAUTION
If the volume in the hearing aid is generally too loud or too
weak, or the reproduced sounds are distorted, or if you would
like any further information, consult your hearing care professional.
18
To mute the hearing aid with a remote control:
Keep pressing the volume down key on the remote
control after the long beep-tone has sounded and until
it stops. Pressing one of the volume keys briefly will
bring back the sound.
NOTE: Your hearing aid can be set to gradually increase
the amplification provided to allow you to acclimatize
yourself to the sound through the hearing aid. Therefore you may notice an increase in level after a period
of time.
19
Lost partner alarm
(Note: Only applicable if this feature is available and
has been activated by your hearing care professional.)
If one of your hearing aids falls off your ear, and/or the
battery is exhausted, a tone signal and a spoken message will sound two times in the other hearing aid, and
a diode will flash on both hearing aids.
When the lost hearing aid is repositioned, and/or the
battery is exchanged, the diodes stop flashing.
20
Programs
By default your hearing aid has one program. However,
with a remote control a number of additional programs,
plus the special Zen program called Zen+ can be made
available.
Please also refer to the user instructions for your remote
control.
Master
Standard
Music
For listening to music
TV
For listening to the TV
Comfort
Attenuates background noise
Reverse focus
Focus on sounds from behind
Phone
For listening to the telephone
Zen
Generates different kinds of tones or noise
Compound
programs
The Master program in one ear and Zen,
Reverse focus or Phone in the other
Zen+
Special Zen program with up to three
different Zen styles
Your hearing aid has a function called the Audibility
Extender. This feature makes high frequency sounds
audible, and can be set to operate for one or more or all
available programs.
If your needs change over time, the combination of
listening programs can be altered.
21
Zen program
Your hearing aid may be provided with a unique optional
listening program called Zen. It makes musical tones
(and sometimes a rushing noise) in the background.
These sounds are shaped according to your hearing
loss. The Zen program may be used alone (without
amplification) in quiet when you are not required
to hear surrounding sounds. Or, it may be used with
amplification so both the surrounding sounds and the
generated sounds (fractal tones and noise) are heard
together.
CAUTION
Use of the different Zen programs may interfere with hearing
surrounding sounds including speech. The programs should not
be used when hearing such sounds is important. Switch the
hearing aid to a non-Zen program in those situations.
CAUTION
If you perceive a decrease in loudness, tolerance of sounds,
speech not as clear, or worsening tinnitus, contact your hearing
care professional.
22
Benefits
The Zen program may provide a relaxing listening
background for some people. When the Zen program
is used in a tinnitus management program, its wearer
may experience some relief from tinnitus.
Indications for use
The Zen program is intended to provide a relaxing sound
background (i.e., music/noise source) for adults who
desire to listen to such a background in quiet. It may
be used as a sound therapy tool in a tinnitus treatment
program that is prescribed by a hearing healthcare
professional (audiologists, hearing aid specialists, otolaryngologists) who is trained in tinnitus management.
Directions for use
Because of the unique ways in which Zen is programmed
in your hearing aid, please follow the recommendations
of your hearing healthcare professionals as to how to
use the program, when to use the program and/or how
long to use the program.
23
Precautions
To ensure the safety and effectiveness of the Zen program when used as a sound therapy tool for tinnitus,
the tinnitus management program must be designed
and conducted by Hearing Healthcare Professionals
who are trained in tinnitus management. A tinnitus
management program should include a complete
audiological evaluation, tinnitus diagnosis, counseling,
use of proper amplification and/or sound therapy tools.
Prior to any tinnitus management program, it is advisable that you seek medical attention to exhaust any
medical or surgical treatment options.
Use your hearing aid and the Zen program according
to the directions and schedule recommended by your
hearing healthcare professionals.
Warnings
Use of the Zen program may interfere with hearing everyday sounds including speech. It should not be used
when hearing such sounds is important. Switch the
hearing aid to a non-Zen program in those situations.
24
Risks
There are no known risks or side effects associated
with the use of the Zen program. However, consistent
with our recommendations on the use of conventional
hearing aids, stop using the hearing aids (and the Zen
program) and seek attention from your hearing healthcare professional if any of the following symptoms are
noted:
• Skin irritation
• Perceived decrease in loudness, tolerance of sounds,
speech not as clear, or worsening tinnitus
25
Switching between the listening programs
If you have a remote control, you can change programs
with a simple push of the program key. Each time you
change program, an acoustic indicator will sound unless
this function has been disabled.
Program 1:
Program 2:
Program 3:
Program 4:
Program 5:
Zen+:
Message or one short beep
Message or two short beeps
Message or three short beeps
Message or one long and one short beep
Message or one long and two short beeps
Message or tone
Depending on hearing aid features and setting, any
change you make will affect both hearing aids.
Zen+
This program is accessed via a long press (more than
1 second) on the remote control program key. A short
press then allows you to cycle through the available
Zen styles.
You can exit Zen+ by pressing and holding the program
key for more than 1 second.
26
Using a telephone
When using a telephone, we
recommend that you hold the
telephone against your head at
an angle above your ear, rather
than directly against the ear.
If the sound is not optimal, try
moving the telephone earpiece
to a slightly different position.
27
CLEANING
The following cleaning accessories are available for the
hearing aid and ear-set*. For cleaning the ear-set, see
the user manual “Ear-sets for Widex BTE hearing aids”.
1. Cloth
2. Wax removing tool
3. Cleaning thread
Contact your hearing care professional if you need
additional supplies of cleaning accessories.
* Selection depends on ear-set type
28
The hearing aid
Clean the hearing aid with the soft
cloth after use.
WARNING
Never use water or cleaning solutions to clean the hearing aid,
as this may cause it to malfunction.
The microphone openings
Clean the microphone openings
by passing the wax removing tool
straight through the openings.
If you feel resistance, withdraw the
tool and try again. Use only the
wax removing tool provided.
When the hearing aid is not in
use, keep it in a warm, dry place
with the battery drawer open, to
ventilate the hearing aid and allow
it to dry.
29
ACCESSORIES
A variety of assistive listening devices are available for
your hearing aid.
RC-DEX
remote control
TV-DEX
for listening to TV and audio
M-DEX
for cell phone applications and remote control
FM+DEX
the FM+DEX is a high-quality streaming device
designed specifically for Widex hearing aids
For help in determining whether you could benefit from
a remote control or other accessories, please consult
your hearing care professional.
30
IN CASE OF MALFUNCTION
Problem
Possible cause
Solution
The hearing
aid is completely silent
The hearing aid is
not turned on
Make sure the battery
drawer is closed
The hearing
aid volume is
not powerful
enough
Your ear is blocked
by earwax
Contact your ENT
doctor/physician
Your hearing may
have changed
Contact your hearing
care professional
The hearing
aid whistles
continuously
Your ear is blocked
by earwax
Contact your ENT
doctor/physician
Your two
hearing aids
are not
working in
synchrony
The connection
Turn the hearing aids
between the hearing off and on again
aids is lost
The battery does not Insert a new battery in
work
the battery drawer
a. Move the DEX closer
The hearing
a. The DEX is used
to the hearing aids
aids do not
beyond the transrespond with
mission range
b. Move away from
a correspond- b. Strong electroknown source of EM
ing change in
magnetic interferinterference
volume or
ence in the vicinprogram to
ity
c. Check with hearing
the DEX
c. The DEX and the
care professional to
hearing aids are
not matched
make sure DEX is
matched with the
hearing aids
31
Problem
Possible cause
You hear
“interrupted”
speech (on
and off) from
the hearing
aids or no
speech
(muted) from
the transmitting ear.
a. The battery in one a. Replace battery in
of the hearing aids
one or both hearing
has expired
aids
b. Strong electrob. Move away from
magnetic interferknown sources of
ence in the vicininterference
ity
Solution
Note: This information covers only the hearing aid. See
the “Ear-sets for Widex BTE hearing aids” user manual
for information specific to your ear-set.
If the problems persist, contact your hearing care professional for assistance.
32
CARING FOR YOUR HEARING AID
The hearing aid is a valuable object and should be
treated with care. Here are some things you can do to
prolong the life of your hearing aid:
CAUTION
• Turn off your hearing aid when it is not in use. Remove the
battery if the hearing aid will not be used for several days.
• When the hearing aid is not in use, keep it in its case in a dry
location out of reach of children and pets.
• Do not expose the hearing aid to extreme temperatures or
high humidity. Make sure to dry the hearing aid thoroughly
after heavy perspiration such as that which may occur during
intense physical activity, e.g. playing sports.
• Avoid dropping your hearing aid – perform cleaning and
battery changes while holding the hearing aid above a soft
surface.
• Do not wear your hearing aid while in the shower or swimming, or when using a hair dryer, perfume, hair and body
sprays or gels such as suntanning lotions or creams.
33
WARNINGS
WARNING
Hearing aids and batteries can be dangerous if swallowed or
used improperly. Swallowing or improper use can result in
severe injury or even fatalities. In case of ingestion, contact a
physician immediately and the 24 Hour National Button Battery Ingestion Hotline at (202) 625-3333.
• Keep hearing aids and their parts, accessories and batteries
out of reach of children and anyone else who might swallow
such items or otherwise cause injury to themselves. Do not
change batteries in front of them and do not let them see
where you keep your battery supply. Discard used batteries
carefully.
• Batteries are very small and can easily be mistaken for pills or
the like. Never put a battery or hearing aid in your mouth for
any reason as you may risk swallowing it.
• Risk of explosion if battery is replaced by an incorrect type
or recharged. Dispose of used batteries according to the
instructions.
• Never allow others to wear your hearing aid, as this could
cause permanent damage to their hearing.
• When selecting a listening program, please remember that
there are situations in which it is particularly important to
be able to hear the surrounding sounds (e.g. traffic, warning
signals).
• The hearing aid is made of modern non-allergenic materials.
Nonetheless, in rare cases skin irritation may occur. If you
notice skin irritation in or around your ear or ear canal, contact
your hearing care professional.
34
WARNING
• Please note that when using any type of hearing aid, you must
allow regular ventilation of the ear. If the ear is not adequately
ventilated, there may be a slightly increased risk of infection
or disease in the ear canal. We therefore recommend that you
remove the hearing aid and ear-set from your ear when you
go to bed, to allow the ear canal to be ventilated. If possible,
you should also remove your hearing aid and ear-set during
the day if there are any periods when you do not need them.
Make sure that you clean and inspect your hearing aid and
ear-set as required. If an ear infection or disease occurs, you
should seek medical attention and contact your hearing care
professional for advice on how to disinfect the various hearing aid parts. Do not under any circumstances use alcohol,
chlorine or similar substances for this purpose.
• Regular use of a de-humidifier is recommended to help avoid
malfunction of the hearing aid.
• Do not use Widex hearing aids in mines or other areas with
explosive gases.
• Do not wear your hearing aid during radiation, X-rays,
MRIs, CT or other medical treatments and scans. The emissions from these procedures as well as from other types of
radiation, such as that in a microwave oven, can damage your
hearing aid. Radiation from, for example, room surveillance
equipment, burglar alarms and cell phones is weaker and will
not damage the hearing aid, but may create audible interference.
35
CAUTION
• Your hearing aid has been tested for interference according
to international standards. Nevertheless, it is possible that
unforeseen interference may occur in the hearing aid due to
electromagnetic radiation from other products such as alarm
systems, room surveillance equipment and cell phones.
• Although your hearing aid has been designed to comply with
the most stringent international electromagnetic compatibility standards, the possibility cannot be excluded that it may
cause interference with other equipment, such as medical
devices.
• Never try to open or repair the hearing aid yourself.
36
ADVICE
NOTE
• The hearing aid will not restore normal hearing and will not
prevent or improve a hearing loss resulting from organic
conditions. However, the hearing aid can help you to make
the best possible use of your remaining hearing ability. You
should also bear in mind that it can take time to get used to a
new hearing aid and new sounds.
• In most cases, using the hearing aid infrequently will not
permit you to gain full benefit from it.
• The use of a hearing aid is only part of hearing habilitation
and may need to be supplemented by auditory training and
instruction in lipreading.
• The use of hearing aids increases the risk of accumulation of
earwax. Contact your physician/ENT doctor if you suspect
that a plug of earwax has accumulated in your ear. Earwax
may not only reduce your own hearing but also the effect
of the hearing aid considerably. It is a good idea to ask your
physician to clean your ears a couple of times a year.
37
Adapting to your hearing aids
Congratulations for taking the first steps toward restoring your communication skills with the purchase of
state-of-the-art hearing aids from Widex.
Because many of the sounds you may now hear have
not been fully audible without hearing aids, we urge
you to take a few minutes to perform the following simple activities in the order listed. Do these first in quiet
settings, then try them in noisier surroundings.
Activity 1: First, listen to a friend or relative speak to
you with your eyes closed and your hearing aids off.
Now, put your hearing aids on and continue to listen.
Notice the difference? The purpose of this activity is not
to hear every word, but just to recognize the difference
in amplified speech from a familiar source.
Activity 2: Listen to your friend or relative speak to you
with your hearing aids on, but with your eyes closed.
Now continue to listen with your eyes open. The goal is
to demonstrate how helpful it is to receive information
from your eyes to supplement your ears.
Activity 3: Purchase two copies of today’s newspaper.
Ask a friend or relative to read a story aloud while you
read along with the same story. Alternatively, read it
aloud and listen to your own voice. It is also helpful to
watch captioned TV.
38
• We hear in our brain, not in our ears. It will take your
brain some time to fully adapt to the new sounds
you are hearing. It is not unusual, for example, to
hear certain sounds, such as your own footsteps, or
a newspaper rustling, or the refrigerator humming,
that people with normal hearing take for granted and
thus don’t consciously process. Be patient and allow
yourself a few weeks to adapt. Your brain will learn
to ignore them if they are not important. Of course,
if sounds are too loud or uncomfortable for you,
contact your hearing care professional.
• Conversational speech has many redundant cues.
Worrying about a word you may have missed will
likely lead to additional missed words. Focus on
the essence of the conversation. It may help to ask
someone you are comfortable with to subtly alert you
about the overall topic when listening in groups.
• Before going to a restaurant, call ahead and request
a seat away from the kitchen or bar area. Remember
that in noisy places, even normal hearing people may
struggle to hear.
For more activities, training materials, and helpful communication hints please go to www.widex.com.
39
REGULATORY INFORMATION
The following Table summarizes the technical details of the
WidexLink technology as it is implemented in the DREAM™ hearing aids.
Hearing aids RC-DEX
Antenna
type
TM-DEX
Bluetooth* NOAHlink
Inductive an- Inductive Inductive an- Embedded
tenna
antenna tenna
ceramic antenna
Antenna di- Ø1.8 mm,
Ø8 mm,
Ø6 mm,
mensions L - 4.85 mm L – 20 mm L - 8 mm
NA
Modulation FSK
FHSS/GFSK,
π/4 DPSK, 8
DPSK
FSK
Magnetic
-54 dBμA/m -13
Field
dBμA/m
Strength (at
10 m distance)
FSK
-26 dBμA/m NA
Output
power
(EIRP**)
29 pW
21 nW
1.2 nW
+4dB re.
1mW
Range
< 1 m remote
unit to hearing aid
< 30 cm between hearing aids or
Hearing aid
to TM-DEX
< 1 m remote unit
to hearing
aid
< 30 cm between hearing aid and
TM-DEX
< 10 m between PC
and
NOAHlink
10.6 MHz
10.6 MHz
2.4 GHz
Center fre- 10.6 MHz
quency
40
Channel
Hearing aids RC-DEX
TM-DEX
Single chan- Single
nel radio
channel
radio
Single chan- 5 logical
nel radio
channels
Bandwidth 660 kHz (-15 660kHz
dB)
(-15 dB)
1 MHz
Data-rate
212 kbit/second (raw
channel
capacity)
Data flow
Simplex or Simplex
Simplex or Time division
semi-duplex capability semi-duplex duplex
capability
capability
(TDD)
Random
Access –
no collision
avoidance
212 kbit/sec- 2.1 Mbps
ond (raw
channel
capacity)
Packetbased protocol, time divided; secure
Serial Port
Profile (SPP)
* Bluetooth specification v2.0 + EDR published by the Bluetooth
Special Interest Group (SIG).
** EIRP = Equivalent isotropically radiated power.
Protocol
Random Access – no
collision
avoidance
212 kbit/
second
(raw
channel
capacity)
660kHz
(-15 dB)
Bluetooth* NOAHlink
Random Access – no
collision
avoidance
Bluetooth Identifier: B01837
Reference number of QPN: NOAHlinkV1.2_412832_QPN_E1
41
(Benefits) The use of wireless transmission allows convenient and
synchronized control of hearing aid functions. The DREAM wireless hearing aids share input information between the two partner hearing aids. In so doing, the wearers would experience the
following additional user benefits (only when wearing binaural
DREAM hearing aids).
Synchronization of volume control settings between hearing aids
– The volume in both hearing aids will change when the VC is adjusted on one ear.
Synchronization of listening programs between hearing aids – The
same listening program is used in both hearing aids when one is
changed by the user.
Surveillance of partner hearing aid – The hearing aid(s) will signal an alert (“partner check”) when a hearing aid battery has expired, or that one of the hearing aids has fallen off. In rare instances, a much stronger wireless source nearby may activate this alert.
This serves as an early warning to the wearer of such service interruption.
Coordination of compression – The DREAM hearing aids maintain the intensity level difference between ears (inter-aural level
difference, ILD). In some situations where speech is presented to
one side and noise the other side, this coordinated action could
enhance the relative loudness of the speech sounds to the noise
background and improve speech understanding for some wearers.
More accurate identification of feedback – The DREAM hearing
aids distinguish between “true” hearing aid whistling (or feedback) and music sounds to prevent unnecessary feedback cancellation and preserve natural sound quality.
42
(Contraindications):
• Congenital or traumatic deformity of the ear
• Active drainage from the ear within 90 days
• History of rapid progressive hearing loss within previous 90
days
• Acute or chronic dizziness
• Sudden unilateral hearing loss in previous 90 days
CAUTION
(Risks) The use of the DREAM/DEX should not interfere with other devices such as a pacemaker. However, to be extra cautious,
Widex follows the guidelines recommended by the manufacturers of implantable defibrillators and pacemakers for their patients when using cell phones. Specifically, hearing aid wearers
who also use a pacemaker should
• Keep the hearing aids at a distance of at least 15 cm/6 inches
away from the pacemaker and
• Do not carry the hearing aids (and/or any of the DEX accessories) in a shirt pocket or close to the chest.
• If any interference is observed, do not use the hearing aids
(and/or DEX) and contact your pacemaker manufacturer and
hearing healthcare professional immediately.
43
RADIO TRANSMITTER / CABLES / TRANSDUCERS
The DREAM™ series hearing aid contains a radio transmitter / receiver with the following
Radio transmitter parameters:
• Frequency (range): 10.6 MHz (10.2 – 11.0 MHz)
• Bandwidth (-15dB): 660 kHz
• Channel: Single channel radio
• Modulation: FSK
• Radiated output power: 29 pW / -75 dBm
• Magnetic field strength: -54 dBμA/m @ 10 m
• Duty Cycle: < 5 % (averaged over 1 hour of operation)
• Simplex or semi duplex capability
The radio receiver in the DREAM™ series hearing aid is using the
same frequency and bandwidth as the transmitter.
Cables and transducers:
No cables and transducers are used neither during normal use of
the DREAM™ series hearing aid nor during programming of the
hearing aid.
44
QUALITY OF SERVICE FOR WIRELESS TECHNOLOGY IN
THE WIDEXLINK SYSTEM
WidexLink wireless technology enables communication between
two partners of a binaural pair of DREAM hearing aids and with
their matched external devices. The requirements for the quality
of service (QoS) vary among the various components and their intended user scenarios.
For programming, these requirements include a BER (Bit Error
Rate) better than 10-3, at a bitrate of 212 kbits/s, a semi-duplex
transmission with a required acknowledge, a transmission latency
in each direction (2x) and a receive-to-transmit mode (RX to TX)
time. The data are saved in the hearing aid even when transmission is interrupted.
During daily use, the requirements on audio streaming between
hearing aids include a BER better than 10-3. The communication is
simplex with a bitrate of 212 kbits/s. The additional audio decoding in this mode results in a longer latency which is less than 10
ms. For remote control commands the QoS requirements include
a BER better than 10-2. The lower BER requirement results from redundant transmissions. Each key press results in transmissions of
7 data packages of which only one is needed for a successful communication.
For inter-ear communication between hearing aids, a BER better
than 10-3 is required. The communication is updated every 50 ms
(or 20 Hz). The hearing aids continue to amplify based on the last
saved settings even when the transmission range is exceeded or
when communication is interfered.
45
Wireless Security Measures
Security of the wireless signals is assured through device system
design that includes:
• Individual MAC address for each unit which is checked during
each transmission.
• A built-in pairing table which specifies valid and legitimate
pairing among units
• A proprietary Widex communication protocol which checks the
package numbers during each transmission.
• A Cyclic Redundancy Check (CRC) to check data validity and
correct errors.
46
GUIDANCE AND MANUFACTURER’S DECLARATION
Electromagnetic emissions
The DREAM™ series hearing aids are intended for use in the electromagnetic environment specified below. The customer or the
user of a DREAM™ series hearing aid should assure that it is used
in such an environment.
Emissions test
Compliance
Electromagnetic environment
- guidance
RF emissions
CISPR 11
Group 2
The DREAM™ hearing aid must
emit electromagnetic energy in
order to perform its intended
function. Nearby electronic
equipment may be affected.
RF emissions
CISPR 11
Class B
Harmonic
emissions
IEC 61000-3-2
Voltage fluctuations/ flicker
emissions IEC
61000-3-3
The DREAM™ hearing aid is
suitable for use in all establishments, including domestic esNot
tablishments and those directly
applicable *)
connected to the public
low-voltage power supply netNot
work that supplies buildings
applicable *) used for domestic purposes.
*) Battery powered equipment
47
Electromagnetic immunity
The DREAM™ series hearing aids are intended for use in the electromagnetic environment specified below. The customer or the
user of a DREAM™ series hearing aid should assure that it is used
in such an environment.
Immunity
Test
IEC 60601
Test level
Compliance
level
Electromagnetic
environment –
guidance
Electrostatic ± 6 kV condischarge
tact
(ESD)
± 8 kV air
IEC
61000-4-2
± 6 kV contact Floors should be
± 8 kV air
wood, concrete
or ceramic tile. If
floors are covered with synthetic material,
the relative humidity should be
at least 30 %.
Electrical
fast transients/burst
IEC
61000-4-4
± 2 kV for
power line
supplies
± 1 kV for input/output
lines
Not
applicable *)
Surge
IEC
61000-4-5
± 1 kV line(s)
to line(s)
Not
applicable *)
Not
applicable *)
Not
applicable *)
± 2 kV line(s) Not
to earth
applicable *)
48
Not
applicable *)
Immunity
Test
IEC 60601
Test level
Compliance
level
Electromagnetic
environment –
guidance
Voltage
dips, short
interruptions
and voltage
variations on
power supply input
lines
IEC
61000-4-11
<5 % UT
(>95 % dip
in UT) for
0.5 cycle
40 % UT
(60 % dip
in UT) for 5
cycles
70 % UT
(30 % dip
in UT) for 25
cycles
<5 % UT
(>95 % dip
in UT) for 5 s
Not
applicable *)
Not
applicable *)
Power frequency
(50/60 Hz)
magnetic
field
IEC
61000-4-8
3 A/m
3 A/m
Power frequency
magnetic fields
should be at levels characteristic
of a typical location in a typical
commercial or
hospital environment
NOTE UT is the a.c. mains voltage prior to the application of the
test level.
*) Battery powered equipment
49
Electromagnetic immunity – cont.
The DREAM™ series hearing aids are intended for use in the electromagnetic environment specified below. The customer or the
user of a DREAM™ series hearing aid should assure that it is used
in such an environment.
Immunity
Test
IEC 60601 CompliElectromagnetic environTest level ance level ment – guidance
Portable and mobile RF
communications equipment should be used no
closer to any part of the
DREAMTM series hearing
aid, including cables, than
the recommended separation distance calculated
from the equation applicable to the frequency of the
transmitter.
Conducted 3 Vrms
RF
3 Vrms
Recommended separation
distance
d = 1.2 √P
IEC
150 kHz to
61000-4-6 80 MHz
Radiated
RF
3 V/m
IEC
61000-4-3
80 MHz to
2.5 GHz
3 V/m
d = 1.2 √P
80 MHz to 800 MHz
d = 2.3 √P
800 MHz to 2.5 GHz
50
Immunity
Test
IEC 60601 CompliElectromagnetic environTest level ance level ment – guidance
Where P is the maximum
output power rating of the
transmitter in watts (W)
according to the transmitter manufacturer and d is
the recommended separation distance in meters
(m).
Field strengths from fixed
RF transmitters, as determined by an electromagnetic site survey a, should
be less than the compliance
level in each frequency
range b.
Interference may occur in
the vicinity of equipment
marked with the following
symbol:
51
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range
applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
a. Field strengths from fixed transmitters, such as base stations
for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess
the electromagnetic environment due to fixed RF transmitters,
an electromagnetic site survey should be considered. If the measured field strength in the location in which the DREAM™ series
hearing aid is used exceeds the applicable RF compliance level
above, the DREAM™ series hearing aid should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or re-locating the DREAM™ series hearing aid.
b. Over the frequency range 150 kHz to 80 MHz, field strengths
should be less than 3 V/m.
Recommended separation distances
Recommended separation distances between portable and mobile RF communication equipment and the DREAM™ series hearing aids.
The DREAM™ series hearing aids are intended for use in the electromagnetic environment in which RF disturbances are controlled.
The customer or the user of the DREAM™ series hearing aid can
help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the DREAM™ hearing aids as recommended below, according to the maximum output power of the
communications equipment.
52
Rated maximum
output power of
transmitter
(W)
Separation distance according to frequency
of transmitter (m)
150 kHz to
80 MHz
d = 1.2 √P
80 MHz to
800 MHz
d = 1.2 √P
800 MHz to
2.5 GHz
d = 2.3 √P
0.01
0.12
0.12
0.23
0.1
0.38
0.38
0.73
1
1.2
1.2
2.3
10
3.8
3.8
7.3
100
12
12
23
For transmitters rated at a maximum output power not listed
above, the recommended separation distance d in meters (m) can
be estimated using the equation applicable to the frequency of
the transmitter, where P is the maximum output power rating of
the transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection
from structures, objects and people.
This DREAM™ hearing aid may be interfered with by other equipment even if that other equipment complies with CISPR emission
requirements.
53
(EMI/EMC Compliance).
The DREAM™ hearing aid complies with the following EMC/EMI
standards:
Standard
Test type
Note
47 CFR Part
15, subpart C
RF emissions
USA Federal Communications
Commission (FCC) requirements for intentional radiators.
EN 303 330-2 RF emissions
V1.3.1
incl. Spurious
emission
EMC and radio spectrum matters for Short Range Devices in
the frequency range 9 kHz – 25
MHz
IEC 60601-12:2007
*adapted
protocol
EMC emission
Immunity, RF
and ESD
Medical electrical equipment.
General requirements for basic
safety and essential performance.
Electromagnetic compatibility.
EN 301 489-3 Immunity, RF
V1.4.1
and ESD
Standard for Low Power Transmitters in the frequency range
9 kHz – 40 GHz
IEC 6011813:2004
Immunity
RF Near Field
immunity test
International Product std. for
hearing aids to ensure adequate
immunity to radio interference
from cell telephones.
ANSI C63.192007
Immunity
RF Near Field
immunity test
American National Standard
Methods of measurement of
Compatibility between wireless
Communication Devices and
Hearing Aids
* The device was tested in only one orientation that represents the
longest length (or worst case scenario). This is acceptable because
of the relative small size of the device compared to the wavelength
of the RF used in the test.
54
IMPORTANT NOTICE FOR PROSPECTIVE HEARING AID USERS
Good health practice requires that a person with a hearing loss
have a medical evaluation by a licensed physician (preferably a
physician who specializes in diseases of the ear) before purchasing a hearing aid. Licensed physicians who specialize in diseases
of the ear are often referred to as otolaryngologists, otologists,
or otorhinolaryngologists. The purpose of medical evaluation is to
assure that all medically treatable conditions that may affect hearing are identified and treated before the hearing aid is purchased.
Following the medical evaluation, the physician will give you a
written statement that states that your hearing loss has been medically evaluated and that you may be considered a candidate for
a hearing aid. The physician will refer you to an audiologist or a
hearing aid dispenser, as appropriate, for a hearing aid evaluation.
The audiologist or hearing aid dispenser will conduct a hearing aid
evaluation to assess your ability to hear with and without a hearing aid. The hearing aid evaluation will enable the audiologist or
dispenser to select and fit a hearing aid to your individual needs.
If you have reservations about your ability to adapt to amplification, you should inquire about the availability of a trial-rental or
purchase-option program. Many hearing aid dispensers now offer programs that permit you to wear a hearing aid for a period of
time for a nominal fee after which you may decide if you want to
purchase the hearing aid.
Federal law restricts the sale of hearing aids to those individuals
who have obtained a medical evaluation from a licensed physician. Federal law permits a fully informed adult to sign a waiver
statement declining the medical evaluation for religious or personal beliefs that preclude consultation with a physician. The exercise of such a waiver is not in your best health interest and its use
is strongly discouraged.
Children with hearing loss
In addition to seeing a physician for a medical evaluation, a child
with a hearing loss should be directed to an audiologist for evaluation and rehabilitation since hearing loss may cause problems in
language development and the educational and social growth of a
child. An audiologist is qualified by training and experience to assist in the evaluation and rehabilitation of a child with a hearing loss.
55
FCC ID: TTY-DMCB
IC: 5676B-DMCB
Federal Communications Commission Statement
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including
interference that may cause undesired operation.
NOTE:
This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined
by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna.
— Increase the separation between the equipment and receiver.
— Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for
help.
NOTE:
This equipment complies with FCC radiation exposure limits set
forth for an uncontrolled environment. This transmitter must not
be co-located or operating in conjunction with any other antenna
or transmitter.
56
Changes or modifications to the equipment not expressly approved
by Widex could void the user’s authority to operate the equipment.
Industry Canada Statement/Déclaration d’industrie Canada
Under Industry Canada regulations, this radio transmitter may only
operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada.
To reduce potential radio interference to other users, the antenna
type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for
successful communication.
This device complies with Industry Canada licence-exempt RSS
standard(s). Operation is subject to the following two conditions:
(1) this device may not cause interference, and
(2) this device must accept any interference, including interference
that may cause undesired operation of the device.
Conformément à la réglementation d’Industrie Canada, le présent
émetteur radio peut fonctionner avec une antenne d’un type et
d’un gain maximal (ou inférieur) approuvé pour l’émetteur par
Industrie Canada.
Dans le but de réduire les risques de brouillage radioélectrique à
l’intention des autres utilisateurs, il faut choisir le type d’antenne et
son gain de sorte que la puissance isotrope rayonnée équivalente
(p.i.r.e.) ne dépasse pas l’intensité nécessaire à l’établissement
d’une communication satisfaisante.
Le présent appareil est conforme aux CNR d’Industrie Canada
applicables aux appareils radio exempts de licence. L’exploitation
est autorisée aux deux conditions suivantes :
(1) l’appareil ne doit pas produire de brouillage, et
(2) l’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement.
57
Hereby, Widex A/S declares that this D-m CB is in
compliance with the essential requirements and other
relevant provisions of Directive 1999/5/EC.
A copy of the Declaration of Conformity can be found
at: http://www.widex.com
58
Hearing aids, accessories and batteries
should not be disposed of with normal
household waste. Please consult your
national Widex distributor for advice on
how to dispose of these items.
59
ADDITIONAL PROGRAM FORMS
Programs available in your hearing aid:
Program 1:
Program 2:
Program 3:
Program 4:
Program 5:
Special program:
60
Programs available in your hearing aid:
Program 1:
Program 2:
Program 3:
Program 4:
Program 5:
Special program:
61
62
63
Manufacturer
CIB288/1112
¡9 514 0133 041*¤ ¡#01v¤
Printed by HTO / 2012-11
9 514 0220 041 #01
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement