Phonak Nathos User manual

Standard micro and CRT
hearing systems
User Guide

2
1. Welcome 4
2. Important information:
Please read before operating your hearing
system for the first time 6
Hazard warnings 6
Information on product safety 8
3. Hearing system description 10
4. Step-by-step instructions for using
the hearing system 14
Step 1. Getting to know your hearing system 14
Step 2. Battery preparation 16
Step 3. Inserting the battery 16
Step 4. Turning on the hearing system 17
Step 5. Inserting the hearing system 18
Step 6. Adjusting the volume control
behind the ear 24
Step 7. Selecting the hearing program
behind the ear 25
Contents

3
Step 8. Removing the hearing system 29
Step 9. Turning off the hearing system 31
Step 10. Changing the battery 32
Step 11. Changing the battery in hearing
systems with a secured battery compartment 32
5. Care and maintenance 34
6. Troubleshooting 36
7. Wireless Accessories FM systems 37
8. Serial Number and Fitting Date 40
9. Information and explanation of symbols 41

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1. Welcome
Your new hearing system is a premium Swiss quality
product. It was developed by Phonak, one of the
world‘s leading companies in hearing technology. Your
hearing system offers the most modern digital hearing
technology currently available on the market.
Phonak has implemented this hearing technology into
hearing systems that are simple and easy to use. Many
automatic functions offer maximum sound quality,
the highest speech clarity, and optimal hearing comfort
in almost all hearing situations. We are convinced
that the outstanding performance of your hearing system
will provide valuable benefits to your daily life.
Please read these user instructions thoroughly in order
to benefit from all the possibilities your new hearing
system has to offer. With proper use and care, you will
be able to enjoy your hearing system for many years
to come.

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If you have any questions, please consult your
audiologist.
Phonak - life is on www.phonak.co.uk
0459

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Please read the information on the following pages
before using your hearing system.
2.1Hazard warnings
Use only hearing systems that have been specially
programmed for you by your audiologist. Other sy-
stems may be ineffective and may, in
certain cases, damage your hearing.
Changes or modifications to the hearing system
that were not explicitly approved by Phonak are
not permitted. Such changes may damage your ear
or the hearing system.
Hearing system batteries are toxic if they are
swallowed! Keep out of reach of children and pets.
If batteries are swallowed, consult your doctor
immediately!
2. Important information
Your Audiology Department will advise you on
where old batteries should be disposed of.

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In very rare cases, the dome can remain in your ear
canal when removing the hearing tube from the
ear. In the unlikely case that the dome remains in
your ear canal, it is strongly recommended to see a
doctor for safe removal.
Hearing programs in the directional microphone
mode reduce background noises. Please be aware
that warning signals or noises coming from behind,
e. g. cars, are partially or entirely suppressed.
External devices may only be connected if they
have been tested in accordance with corresponding
IEC standards. Only use accessories approved by
Phonak AG.

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2.2 Information on product safety
Never immerse your hearing system in water!
Protect it from excessive moisture. Always remove
your hearing system before showering, bathing,
or swimming.
Protect your hearing system from heat (never leave
it near a window or in the car.) Never use a micro-
wave or other heating devices to dry your hearing
system. Ask your audiologist about suitable drying
methods.
When you are not using your hearing system,
leave the battery compartment open so that any
moisture can evaporate. Make sure that you
always completely dry your hearing system after
use. Store the hearing system in a safe, dry and
clean place.
2. Important information

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Do not drop your hearing system! Dropping onto a
hard surface can damage your hearing system.
Always use new batteries for your hearing system.
Remove the battery if you are not using your hearing
system for a long period of time.
X-ray radiation (e. g. CT scans, MRI scans) may
adversely affect the correct functioning of your
hearing systems. We recommend that you
remove them before undergoing X-ray procedures
and keep them outside the room.
Do not use your hearing system in areas where
electronic equipment is prohibited.

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The following user instructions describe three hearing
system models: The standard hearing system the micro
hearing system and the CRT hearing system.
The standard hearing system is adapted with a classic
earmould. The micro and CRT hearing system can be
adapted with a variety of earmoulds.
On the following pages use the labeled drawings to
identify the hearing system and the earmould that
you use.
Your audiologist will tell you what size of battery you
need for your hearing system.
3. Hearing system description

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Standard model
With classic earmould
aRight or left indicator (right=red, left=blue)
bWind and Weather Protector for battery compartment
cBattery compartment with ON/OFF switch
dVolume control
eProgramming cover
fProgram switch
gMicrophone input with Wind and Weather Protector
hHook/sound output
iHearing tube
Classic earmould
c
d
e
f
gh
i

ab

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micro model
Option A: with classic earmould
aRight or left indicator (right=red, left=blue),
placed in the battery compartment
bProgram switch
cBattery compartment with ON/OFF switch
d Microphone input with Wind and Weather
Protector
e Hook/sound output
f Hearing tube
g Classic earmould
d
b
c
f
g
e
a
3. Hearing system description

13
micro model
Option B: with dome Option C: with SlimTip
a – fsee last page
hDome
iRetention
Earmould: SlimTip
kRemoval handle
f
h
i
f

k

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CRT model
Option A: with dome
aEarmould: dome
bRetention
cxReceiver unit
d Microphone input with microphone protector
e Battery compartment with ON/OFF switch
c
e
b
a
3. Hearing system description
d

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b
c
a
CRT model
Option B: with xShell Option C: with SlimTip
aEarmould: xShell
bxReceiver unit
cMicrophone input with microphone protector
d Battery compartment with ON/OFF switch
e Removal handle
f Earmould: SlimTip
e
f
c
d
d
b

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The following chapter provides step-by-step instructions
on how to use your hearing system. Please follow
these steps carefully. In the drawings, the parts that
are particularly important for each step are shown
in green.
Step 1. Getting to know your hearing system
Take the hearing instrument in your hand and try out
the hearing system controls. This will make it easier
for you to feel and operate the controls later on when
wearing the hearing system.
4. Step-by-step instructions for using
the hearing system

17
To increase the volume, press the volume control
upwards. To decrease the volume, press the volume
control downwards (Fig. 1a)
In order to change a hearing program, press the program
switch displayed (for standard models and micro models,
CRT models do not have a program switch) (Fig. 1b).
Fig. 1a
Decrease volume
Increase volume
Fig. 1b

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Step 2. Battery preparation
Remove the protective foil from the new battery (Fig. 2).
Wait for two minutes before inserting to activate the
battery.
Step 3. Inserting the battery
The standard, micro and CRT hearing
system use a similar type of battery
compartment. The standard is used in
the following example for how the
battery is changed.
Take the hearing system in your
hand (Fig. 3a) and open the
battery door. Insert the battery
so that you see the + symbol on
the battery (Fig. 3b).
Fig. 2
Fig. 3a
Fig. 3b
4. Using the hearing system

19
Step 4. Turning on the hearing system
Switch on the hearing system by closing the battery
compartment (Fig. 4).
Standard micro CRT
Open and close the battery compartment gently
and carefully.
Check if you feel resistance when closing the
battery compartment. Check to make sure the
battery is correctly inserted and in the correct
direction. If the battery is inserted the wrong
way, the hearing system will not work and the
battery compartment can be damaged.
Fig. 4

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The hearing system is now switched on. It can take up
to 15 seconds before it starts.
(When you wear the hearing system, you will hear an
acoustic signal).
Step 5. Inserting the hearing system
The next steps show you how to correctly insert the hea-
ring system. The instructions apply for both standard,
micro and CRT models of hearing systems. The type of
earmould determines how the hearing system is inserted.
Each hearing system is individually programmed
for your right or left ear. For the first step identify
right and left so you will be able to insert your
hearing system into the correct ear.
4. Using the hearing system