Beltone | CHG75 | Specifications | Beltone CHG75 Specifications

Beltone Change
Instructions for use
Digital Behind-the-Ear hearing instrument
CHG75 and CHG75D
CHG75 Open and CHG75D Open
CHG85 and CHG85D
A new Beltone hearing instrument
Congratulations on your choice of a Beltone hearing instrument!
This is an important step towards clearer hearing and better understanding. We have used all our experience with hearing instruments to
help you communicate, lead an enjoyable social life and listen to the
world around you.
Your hearing instrument is a very advanced device. Your hearing care
practitioner has tuned it to your individual needs. With a little devotion
and patience you will become familiar with it.
This booklet is a short guide to assist you in getting acquainted with
your hearing instrument. Read it carefully and use it as a guideline.
We wish you happiness and pleasant listening with your new instrument.
This booklet & your instrument
In this booklet you will find instructions for inserting and controlling
your new hearing instrument. You will find explanations on controlling your instrument, on daily handling and on its use. Furthermore,
you can read what to do if things do not live up to your expectations. We will give a few practical steps towards better hearing.
Warning to hearing care professional Your Hearing Instrument
Switching on and off
Changing batteries
Inserting and removing the instrument
Recognising left and right instrument Setting the volume
Program button
Dual microphone system
Using the telephone
Hearing through an induction loop Audio input
Maintenance and cleaning
General warnings
Eight steps towards better hearing
General precautions
Technical specifications
Troubleshooting guide
International warranty
Your selected model
Warning to hearing care professional
A hearing care professional should advise a prospective user to
consult promptly with a licensed physician (preferably an ear specialist) before setting the instrument if the hearing care professional
determines through inquiry, actual observation, or review of any
other available information concerning the prospective user that the
prospective user has any of the following conditions:
(i) visible congenital or traumatic deformity of the ear;
(ii) history of active drainage from the ear within the previous 90
(iii) history of sudden or rapidly progressive hearing loss within the
previous 90 days;
(iv) acute or chronic dizziness;
(v) unilateral hearing loss of sudden or recent onset within the
previous 90 days;
(vi) audiometric air-bone gap equal to or greater than 15dB at 500
Hz (hertz), 1000 Hz, and 2000 Hz;
(vii) visible evidence of significant cerumen accumulation or a
foreign body in the ear canal;
(viii) pain or discomfort in the ear.
Your Hearing Instrument
Tone tube
Microphone behind cover
Volume wheel
Plastic tube
Program button
Battery door
CHG75 / CHG75D / CHG85 / CHG85D
Tone tube
Microphone behind cover
Volume wheel
Plastic tube
Program button
Mini dome
Battery door
CHG75 Open / CHG75D Open
Switching on and off
Switch your hearing instrument on
by closing the battery door.
Switch your instrument off by a
small movement of the battery door
till you feel a click.
After switching on, your hearing
instrument will always start in
program 1. Read more on the
program button on page 14.
On page 16 you will
the T-program.
• Switch your instrument off if you
are not using it. This will increase
the battery life.
• At night, switch off your instrument and open the battery door
completely. It allows moisture in
your instrument to evaporate and
will increase the instrument’s life span.
Changing batteries
When the hearing instrument generates a warning signal it’s
advisable to change your battery as soon as possible. The signal
will continue as long as the battery is not changed or unless it does
not run out of power, and therefore it is advisable to keep an extra
battery at hand.
Remove ‘dead’ battery
Open the battery door by placing your fingernail or a pencil on
the edge of the battery door and gently pull it down. When
opened, remove the dead battery by sliding it out as shown in the
The replacement battery has to be of type: 13 zinc-air. Remove
the protective seal from the fresh battery and insert it in the battery
door, with the plus side facing down. You will recognize the plus
side of the battery because marked with a +. Check whether the +
symbols on the battery and on the battery door are on the same
side. Close the battery door. This should go smoothly, so never
force it as this could damage your instrument.
CHG 75 / 75D / CHG 75 Open / 75D Open / CHG85 / 85D
• Keep batteries away from children and mentally challenged
• Batteries can be harmful if swallowed. If you do, seek medical
attention immediately.
• Do not attempt to recharge batteries (Zinc Air) which are not
specifically designated rechargeable as they may leak or
• Do not burn the batteries, as they could explode.
• Replace spent batteries and do not leave them in the instrument
for a prolonged period.
• Used batteries are harmful to the environment. Please dispose
of them according to local regulations or return them to your
hearing care practitioner.
Inserting and removing the instrument
(standard earmould)
Inserting the instrument
• With the battery door opened in
the off position take the earmould
between thumb and index finger
and position its ‘point’ in your ear
canal. Now, slide the earmould
all the way into your ear with a
gentle, twisting movement.
Insertion can be easier if you
gently pull your auricle backwards
with your other hand.
• Turn the top-part of the earmould
gently backwards and forwards
so that it fits behind the fold of
skin above your ear canal.
• Place the hearing instrument
behind your ear. Move the earmould up and down and press
gently to ensure it is positioned
correctly in the ear. Opening and
closing your mouth can ease
insertion. You will feel when the
earmould is positioned correctly.
• When correctly positioned switch
on your instrument by closing the
battery door.
• You can as well insert the hearing instrument while in the
on position. However you might experience some feedback
(whistling) during the operation. This feedback can be prevented
by enabling ”Delayed Activation”. Ask your hearing care
practitioner about this feature.
Removing your instrument
• Switch off the instrument by pressing the battery door to the
‘off ’ position.
• Lift the hearing instrument from behind the ear. For a moment,
let it hang beside your ear.
• Using your thumb and index finger, gently pull the earmould
(not the instrument or the tubing) loose from the ear.
• Remove the earmould completely by gently twisting it.
Take some time at home to practice how to insert and remove your
instrument. Work conveniently positioning your elbows on a table
and maybe using a mirror.
Inserting and removing the instrument
Inserting the instrument
• Hang the instrument over the top
of the ear.
• Grasp the sound tube where
it bends. The dome should be
placed far enough into the ear that
the sound tube lies flush with your
head. When the dome is placed
appropriately, you should not see
the sound tube sticking out when
you look directly into a mirror.
• If the device whistles, the most
likely reason is that the dome is not
placed correctly in the ear canal.
Other reasons can be buildup of
earwax in the ear canal, or that
the sound tube connection to the
instrument has become loose, in
which case the sound tube must
be changed. It is also possible that
the instrument settings are not
optimal. If you have ruled out other
reasons for the instrument squealing, it is recommended to contact
your hearing care professional.
Recognising left and right instrument
If you have two hearing instruments, they may be tuned differently.
One for your left ear, the other for your right. Do not swap them.
Please pay attention to this when cleaning, storing and inserting the
CHG 75 / 75D / CHG85 / 85D
CHG 75 Open / 75D Open
• You might want to ask your hearing care practitioner to mark
your instruments with a coloured Left and Right indication:
Left is blue and Right is red.
CHG 75 / 75D / 75 Open / 75D Open /
CHG 85 / 85D
Setting the volume – BTE and Power BTE
Your instrument has a volume control which allows you to set and
control the volume manually.
During the fitting of the hearing
instrument, your hearing care
practitioner will have chosen an
optimal volume setting for you.
Please note the setting of that
particular level.
Your volume control has numbers
on it to indicate the sound level.
• If you prefer not to use the volume wheel your hearing care
practitioner can switch the wheel off.
Program button
Your hearing instrument has a push button allowing you to use
up to three different listening programs, each of them suitable for
certain situations.
After pressing the program button,
the instrument will switch program.
If it was in program 1 it will switch
to program 2, if it was in program 2
it will switch to program 3 etc. If
program 2 or 3 are not activated,
nothing will happen. Your instrument
will give an audible signal after
pressing the program button.
A little later, the instrument will give:
• one single beep if set in program 1
• two beeps if set in program 2
• three beeps if set in program 3
When you close the battery door
and switch the instrument on it
will start in program 1, confirmed
by one single beep.
Press the program button if you want to move to a different
listening program.
Let your hearing care practitioner fill out the following table:
Type of program
Intended for
listening situations
Directional microphone
BTE and Power BTE can have a directional microphone function.
If you want to listen to a person in a noisy environment, the micro­
phone in these hearing instruments can help you to concentrate
on the speech. If the microphones are in the directional mode the
background noise will be suppressed. In this mode the sounds in
front of you will be enhanced, so you can hear better the speech
of the person you look at. Your hearing care practitioner can
program the device in the required modes.
Your hearing instrument has a built in function, the telecoil, enabling
in many cases an improved use of the telephone and better hearing
in those churches or halls where an induction loop system is installed.
In order to activate this function, the telecoil program has to be
selected (often available in program 2). In this program you will hear
no sounds from the microphone, therefore most environmental
sounds will be lost. If you wish, your hearing care practitioner can
change the setting in such a way that you hear the microphone and
the telecoil simultaneously.
Using the telephone
• Switch your instrument to the telecoil program.
• Hold your telephone handset behind your ear, close to the hearing
instrument (2-3 cm.) and slightly
tilt the receiver outwards.
• Listen to the dialing tone and
move the handset a little to find
the position that gives the best
• If needed, turn the volume up or down.
• After completing the phone call, switch your instrument back to
the microphone program.
If the phone used has poor telecoil signal, use the microphone
program. Do not hold the handset too tightly against your ear since
this might cause ’whistling’.
Hearing through an induction loop
More and more public places, churches, theatres and cinemas,
have induction loops systems. In these particular rooms, they
transmit, wirelessly, the sound of the presenter or show. At home,
radio or television can be connected to an induction loop system.
Sound quality through induction loop is often better because noises
from the environment are not transmitted.
• Switch your instrument to the telecoil program.
• Choose a good spot. Reception is not clear in all locations;
it depends on the position of the induction loop. Watch for signs
or try a different seat yourself.
• If needed, adjust the volume up or down.
• After the service or show, switch your instrument back to the
microphone program. You will now hear through the microphone
• If the sound of your hearing instrument in the telecoil program is
very soft all the time, ask your hearing care practitioner to make
an adjustment.
• Your hearing care practitioner will gladly provide you with advice
regarding an induction loop system at home. Ask for it.
Audio input
Your hearing instrument is equipped with a direct audio input
facility. Direct audio input allows direct connection of sound sources, a radio, television or even school equipment, to your hearing
instrument. Often, this will improve sound quality.
• The sound source is connected
to your instrument with a cable or
a wireless FM system to an audio
• The audio shoe attaches with a
’click’. When attached, the instrument will automatically switch to
Direct Audio Input program. When
in the is program and the audio
shoe is removed, it will automatically switch to Program 1. You can manually switch away from
this program by pushing the Program Button.
• In this program you will hear no sounds from the microphone,
therefore most environmental sounds will be lost. If you wish,
your hearing care practitioner can change the setting in such
a way that you hear the microphone and the direct audio input
Safety regulations
External equipment, connected to the mains and to the audio input
must comply with these safety regulations: IEC-65, IEC-601 or
Maintenance and cleaning
Earwax (cerumen) can accumulate in and on the earmould during
use. Therefore, clean your earmould regularly. Failure to do so can
lead to an accumulation of earwax, impairing sound quality.
Keep your hearing instrument clean and dry. Wipe the case with
a soft cloth or tissue after use to remove grease or moisture. You
should avoid exposing your instrument directly to moisture such as
rain or water from the shower. If your instrument does get wet or if it
has been exposed to high humidity or perspiration, it should be left
to dry out overnight with the battery out and the battery compartment open. It is also a good idea to put them in a sealed container
together with a drying agent (dessicator) overnight. Consult your
hearing care professional as to which drying agent to use.
Storing your instrument
When you are not using your instrument, keep or transport it in the
box supplied. Leave the battery door open. Keep your instrument
in a dry place, not in a bathroom or other humid place. Alternatively,
you could store the instrument in a dessicator available from your
hearing care practitioner.
Cleaning the earmold
• First, remove the tubing and earmold from the hearing instrument.
Keep left and right instrument
• Remove earwax with the cleaning
brush and a soft cloth. If needed,
use a mild solution of soft soap
and water or a special cleaning
solution. Ask your hearing care
practitioner for detailed instructions.
• Rinse the earmold with water.
Note: Do not use water or other liquid on the hearing instrument
• Dry the earmold with a cloth.
• Blow possible water drops from
tubing and earmold. A special
device is available for this from
your hearing care practitioner.
• Ensure that the earmold and
tubing are completely dry before
attaching them to the hearing
instrument. Take care with left and
right instruments, check the figures on page 12.
Replacing the tube
Ask your hearing care practitioner to replace the tubing from the
instrument to the earmould if it turns stiff or changes colour.
Cleaning the sound tube and dome
The ThinTube
The ThinTube feeds the amplified sound from the hearing instrument into the ear. It is important that the ThinTube and the dome fit
correctly into your ear. If the ThinTube or the dome irritate your ear
in any way and prevent you from wearing your hearing instrument,
please contact your hearing care professional. You should never
attempt to modify the shape of the ThinTube yourself.
The ThinTube and the dome should
be cleaned regularly. Remove the
ThinTube from the instrument before
cleaning by unscrewing it. Use a
damp cloth to clean the ThinTube
and dome on the outside and use
the black cleaning rod to “push” any
debris out of the sound tube. The
cleaning rod should be inserted
where the ThinTube attaches to the
instrument and pushed all the way through the ThinTube and out
through the dome. It is not recommended to submerge or rinse the
ThinTube and dome with water, as there is a risk that a water drop
may become lodged in the ThinTube. If this should occur, it will
prevent sound coming through the ThinTube, and may be harmful
for the instrument’s electronics.
The ThinTube and dome should be changed every third month or
sooner if the ThinTube becomes stiff or brittle. We recommend that
you have your hearing care professional change the dome for you.
If your hearing care professional instructs you to change the domes
yourself, make sure that they are securely fastened to the ThinTube
before inserting them in your ear. A failure to change the domes in
accordance with the instructions could result in injury.
General warnings
• Do not leave your hearing instrument in the sun, near an open
fire or in a hot, parked car.
• Do not wear your instrument while showering, swimming,
in heavy rain or in a moist atmosphere such as steam bath or
• Should your instrument become moist, put it in a dessicator.
Your hearing care practitioner will be happy to counsel on this.
• Remove your instrument when applying cosmetics, e.g.
perfume, aftershave, hair spray, suntan lotion.
• Hearing instruments should be used only as prescribed by your
hearing care practitioner. Incorrect use may result in sudden
and permanent hearing loss.
• Do not allow others to use your hearing instrument. It may
cause permanent damage.
• Hearing instrument usage by children or mentally challenged
persons should be supervised at any time.
• Do not take your instrument into rooms where you receive
treatment with X-rays or MRI.
• Wearing a hearing instrument might cause an increased pro­
duction of earwax. In rare cases, the anti-allergenic materials
may cause skin irritation. If so, or if in doubt, consult your
physician or ENT consultant.
Eight steps towards better hearing
You need to get used to your new hearing instrument. Sounds
seem new and different. That is because you grew accustomed to
your diminished hearing. Therefore, familiar sounds seem strange
or unnatural at first. Every first-time user of a hearing instrument
responds differently to this. Some can wear the new instrument a
whole day right from the start while others find it hard to get used
After a while, you will notice you appreciate hearing with a hearing
instrument and that you will find it quite normal. Below, eight steps
are described that will guide you through the initial period. If you are
not satisfied or keep experiencing problems, please consult your
hearing care practitioner.
1. Get used to familiar sounds at home
Try to get used to the new sounds from a familiar environment.
Listen to the different (background) sounds and try to recognise
them. When you are tired from listening, remove your instrument
and pause for a while. Talk or read aloud for a while. In that way you
will familiarise yourself with the sound of your own voice. Gradually,
you will learn to use the instrument for longer and become more
comfortable with it.
2. Listen outside - quiet & traffic
Go outside, to a quiet place, e.g., the park or woods. Listen to the
environmental sounds. Do you recognise them?
Please, be careful with sounds from heavy traffic at this stage of
getting used to your instrument. Sometimes they sound very loud;
try not to get frightened.
3. Have a conversation with a single person
Use your instrument in conversation with one person; a family
member or a friend. Move to a quiet spot. Explain that you are now
wearing a hearing instrument; ask the other person to talk normally.
Look at your conversation partner. If your instrument is tuned to
your requirements you will be able to communicate better than
4. Listen to radio or television
Listen to the radio or television. Start with the news, then turn to
another program. Ask a ‘normal hearing’ person to set the volume
of your radio or television to a comfortable level. If necessary, adjust
the volume on your hearing instrument.
If you cannot understand the radio or television, ask your hearing
care practitioner to adjust your hearing instrument.
He or she is able to inform you on other facilities such as an
induction loop at home for radio or television.
5. Get used to conversation in a group
Following conversations in a group is often difficult because of the
background noise. Listen to the different voices. Try to recognise
them by timbre or rhythm and link each voice to a person. Focus
your attention on the person you want to understand. Practice this
regularly. If you did not understand something that was said, please
ask for it to be repeated.
Ensure that you can see the face of your conversation partner(s)
clearly and that there is sufficient light. This will help you to lipread. Avoid ‘looking into the light,’ position yourself with your back
towards the window so that you can see the other person(s) better.
Ask others to talk slowly and clearly. Talking louder does not help.
If your instrument is equipped with a Dual Microphone System,
select the directional listening program. Read more on this on page
6. Visit public buildings
Visit public buildings. Try to sit near the speaker; try to be seated in
the front rows in a show. Avoid a seat behind a pillar or in an alcove,
you will be in a ‘sound shadow.’
In a restaurant, sit with your back towards the wall. This avoids
disturbing noises coming from behind you.
Some public buildings have an inductive loop system. In these
buildings use your telecoil program, if activated. However, not every
position in the building will have good sound reception. Watch for
signs at the location or try a different seat.
7. Use your telephone
Often, you can hear the telephone clearly with your hearing instrument in the microphone program. Hold the telephone handset 1
inch (2-3cm) from your ear and tilt the receiver outwards a little.
See whether or not the telephone sounds better if you switch your
hearing instrument to the telecoil program. Read about this on page
Your hearing instrument meets strict international regulations.
Therefore, it should be possible to use a GSM telephone in most
cases. However, in some circumstances, disturbance might be
audible through your hearing instrument.
8. Use your instrument all day
Using your hearing instrument and practising with it is the best way
to learn to hear again. Even if you can hear without an instrument in
some cases. Try to wear your instrument all day. In that way you will
benefit the most.
Of course, a hearing instrument cannot restore natural hearing, but
it will help you make the most of your hearing as it is today.
Go beyond these eight steps and discover the world of sound
around you. Do the things you enjoy and listen to the sounds from
your environment.
General precautions
• Consult a physician if you find a foreign object in your ear
canal, if you experience skin irritation or if excessive ear wax
accumulates with the use of the hearing instrument.
• Different types of radiation, e.g. from NMR or CT scanners,
may damage the hearing instrument. Therefore, do not wear
the hearing instrument during these or other corresponding
scanning procedures. Other types of radiation (burglary
alarms, room surveillance systems, radio equipment, mobile
telephones, etc) contain less energy and will not damage the
hearing instrument. They could however momentarily affect
the sound quality or create strange sounds from the hearing
• Warning: Do not wear the hearing instrument in mines or
other explosive areas, unless those areas are certified for
hearing instrument use.
Warning to hearing care practitioners
Special care should be exercised in selecting and fitting a hearing
instrument(s) whose maximum sound pressure level exceeds 132
dB SPL with an IEC 60711: 1981 occluded ear simulator, because
there may be a risk of impairing the remaining hearing of the hearing
instrument user.
Technical specifications
Audio signal technology
Hearing instrument maximum output (IEC 118-0 OES)
model CHG 85 141 dB SPL
CHG 85D 141 dB SPL
CHG 75 131 dB SPL
CHG 75D 131 dB SPL
CHG 75 Open 122 dB SPL
CHG 75D Open 122 dB SPL
Feedback, ’whistling’
Is your earmould inserted correctly?
Is the volume very loud?
Is the plastic tube or the earmould
clogged or broken?
Are you holding your hand or an object
(e.g. a hat) too close to an instrument?
Is you ear full of wax?
No sound
Is the instrument switched on?
Is the instrument switched on the
telecoil program?
Is there a battery in the instrument?
Is the battery still good?
Is the plastic tube or the earmould
clogged or broken?
Is you ear full of wax?
Sound is distorted,
spluttering or weak
Is the battery dead?
Is the battery dirty?
Is the plastic tube or the earmold
clogged or broken?
Did your instrument get moist?
Battery drains very
Did you leave your hearing
instrument switched on at night?
Is the battery old?
Put it in again
Reduce it
Visit your hearing care practitioner
Move your hand away or create some more space between the
instrument and the object
Visit your physician
Switch it on
Switch it to the microphone program
Insert a battery
Replace it with a new one
Visit your hearing care practitioner
Visit your physician
Replace it with a new one
Clean it or use a new one
Visit your hearing care practitioner
Use a dissecator
Always switch off the instrument at night
Check the date on the battery packaging
International warranty and service
Any digital hearing instrument from Beltone has an international
warranty. Read more on this subject on the warranty card you
received with your instrument.
If your Beltone hearing instrument malfunctions, it must be repaired
by a qualified technician. Do not attempt to open the case of the
hearing instrument since this would invalidate the warranty. If your
Beltone hearing instrument requires service, please contact your
hearing care professional for assistance.
Before you leave, obtain from your hearing care practitioner an
address list for Beltone services. In case you need support, contact
the nearest Beltone Company during your stay abroad.
Your selected model
Your hearing care professional place a check mark in the below
table to identify the model you have received.
Model received
CHG75 Open
Hearing care professional
Serial number Right:
Serial number Left:
Any issues relating to the EU Medical
Device Directive 93/42/EEC should be
directed to Beltone A/S, Denmark
17002600 GB-09.01 Rev. A
Printed in Denmark
© Beltone 2009
Beltone A/S
Lautrupbjerg 9
DK-2750 Ballerup
Tel.: +45 45 75 11 11
Fax: +45 45 75 11 19
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