Interton Centro User manual

User Guide
Receiver-In-Ear (RIE) Models:
Interton Centro
Interton Cosmo
Interton Step
Interton Crisp
Interton Share

23
Programme Beep Description of when to use
1
2
3
4
Delayed on-activation...............16
Multi-Function button ...............24
Push button......................26
Wireless.................19, 27, 28, 49
AutoPhone.......................32
Telecoil/Tele-loop system ............37
Direct Audio Input (DAI)..............38
SPECIFIC FEATURES SUPPORTED BY YOUR HEARING SYSTEM:
Note: Your hearing system might not support all 4 environmental programmes. Ask your hearing care professional for details.
Ask your hearing care professional to marked options supported by your hearing system.
Left Hearing Instrument Right Hearing Instrument
Serial number Serial number
Receiver type
Low Power
Normal Power/Medium Power
High Power
Ultra Power
Receiver type
Low Power
Normal Power/Medium Power
High Power
Ultra Power
Reciever size Reciever size
Battery size 312 brown
Open/
standard
fitting:
Small Medium Large St dome Small Medium Large Custom
Open fitting air dome Power dome RIE mould

45
Becoming Accustomed to Amplification
While purchasing a hearing system is a major step, it is only one step in a process toward more comfortable
hearing. Successfully adapting to the amplification your hearing system provides takes time and consistent
use.
You will enjoy more benefits from your Interton hearing system by taking the following actions:
• Wear the system regularly in order to get comfortable with using it.
• It takes time to get used to a hearing aid. It may help to begin by wearing your hearing aid for short
periods – even as little as 15 minutes – and then gradually building up your wearing time. In a way, it’s
no different than adjusting to contact lenses. Speak to you hearing care professional, who can design
a schedule tailored just for you.
• As you get more comfortable with the system, increase the wearing time and wear your hearing system
in multiple types of listening environments.
It may take as long as several months for your brain to get used to all the “new” sounds around you. Fol-
lowing these suggestions will give your brain time to learn how to interpret amplification and increase the
benefits you get from using an Interton hearing system.
Thank You
Thank you for selecting an Interton hearing system. We are proud of our hearing products and are confi-
dent you have chosen one of the best products available.
Please familiarize yourself with the information in this guide. It contains important instructions for proper
use and care, technical performance information, and other general information about your hearing system.
Your hearing system has been adjusted to your particular hearing loss. Your hearing health care professional
will explain these adjustments and the special features of your particular model.

67
Hearing instrument type designations for models included in this user guide are Model: SY312, FCC ID:
X26SY312, IC: 6941C-SY312, Model: MRIE, FCC ID X26MRIE, IC: 6941C-MRIE, Model SY312e, FCC ID:
X26SY312e, IC: 6941C-SY312e and Model VE312, FCC ID: X26VE312, IC: 6941C-VE312. Please see pages
12 and 14 for list of models referring to all types.
Statement:
This device complies with Part 15 of the FCC Rules and IC 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 and ICES-003 of the IC 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 in-
structions, 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 the one in which the receiver is con-
nected.
• Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications can void the user´s authority to operate the equipment.

89
Intended use
Generic air-conduction hearing instruments are wearable sound-amplifying devices intended to compen-
sate for impaired hearing. The fundamental operating principle of hearing instruments is to receive, amplify,
and transfer sound to the ear drum of a hearing impaired person.
The products are in compliance with the following regulatory requirements:
• In EU: the device conforms to the Essential Requirements according to Annex I of Council Directive
93/42/EEC for medical devices (MDD) and essential requirements and other relevant provisions of Di-
rective 1999/5/EC (R&TTE).
• The declaration of conformity may be consulted at www.interton.com
• In US: FCC CFR 47 Part 15, subpart C.
• Other identified applicable international regulatory requirements in countries outside EU and US. Please
refer to local country requirements for these areas.
• In Canada: these hearing instruments are certified under the rules of IC.
• Japanese Radio Law and Japanese Telecommunications Business Law Compliance. This device is
granted pursuant to the Japanese Radio Law (電波法) and the Japanese telecommunications Business
Law (電気通信事業法) This device should not be modified (otherwise the granted designation number
will become invalid)
• Patents: US 7,593,537 US 8,000,849

10 11
Hearing instrument(s) model and basic
information......................... 2,3
Thank you ...........................4
Becoming Accustomed to Amplification .....5
Intended use .........................8
Instruments component identification ......12
On/Off function ......................16
Delayed activation (optional) .............16
Inserting/ Replacing the battery ..........17
Low battery indicator ..................19
Inserting/removing hearing instruments.....20
Multi function button (optional) ...........24
Push button (optional) .................26
Flight mode (wireless devices only)........28
Telephone use ......................30
Listen to radio or TV ..................31
Using Hearing Instruments with iPhone
®
,
iPad
®
, and iPod touch
®
(Interton Centro 6) ..31
Cellular phones ......................32
AutoPhone (optional) ..................32
Telecoil (optional) .....................37
Tele-loop systems (optional) .............37
Direct Audio input (optional) .............38
Connecting/Disconnecting audio boots ....38
Contents
Care and maintenance.................39
Cleaning the reciever tubes and domes ....42
Cleaning RIE moulds ..................42
Cleaning wax guard ...................43
How to apply domes ..................46
Mini domes .........................46
Standard domes .....................47
Using Interton hearing instrumetns with
smart phone apps ....................48
Wireless warnings and precautions
(wireless devices only) .................48
General warnings.....................49
Troubleshooting guide .................52
Technical Data .......................60
Warranty and repairs ..................64
Temperature test, transport and
storage information....................65
Hearing instrument expectations .........66
Warning to Hearing Aid Dispensers
(US only) ...........................66
Important Notice for Prospective
Hearing Aid Users (US only) .............67
Children with hearing loss (US only) .......68

7
9
1
8
2
3
16
15
6
1211 13 14
10
1
8
2
7
16
17
15
5
4
71
8
2
12 13
Mico RIE hearing instruments are available in
the following variants:
C662-DR, CI362-DR
Mini RIE hearing instruments of type SY312 are
available in the following variants:
C661-DRW, C461-DRW
Mini RIE hearing instruments of type MRIE are
available in the following variants:
CI360-DVIRW, CI260-DVIRW, ST460-DRW
ST260-DRW
62 models
61 models
(type SY312)
60 models
(type MRIE) (Indentification number for the SY312 devices)
1. Receiver tube
2. Receiver Open Dome
3. Receiver Tulip Dome
4. Receiver Power Dome
5. RIE mould
6. Sports lock
7. Battery compartment
8. Receiver
9. Push button
10. Multi-Function button
11. S receiver tube
12. NP receiver tube
13. HP receiver tube
14. HP2 receiver tube
15. Left/right indicator
16. Model, and serial number
17. Direct Audio Input

14 15
3
6
9
1
8
2
15
14
7
5
12 13
4
10 11
Mini Receiver In-the-Ear (RIE) hearing instru-
ments of type VE312 with FCC ID: X26VE312, IC
number 6941C-VE312 and size 312 battery are
available in the following variant:
CT661-DRW, CT461-DRW
The identification number for the VE312, instrument
models can be found at location "15" as indicated in
the illustrations on page 15.
61 models
(type VE312)
1. Receiver tube
2. Receiver Open Dome
3. Receiver Tulip Dome
4. Receiver Power Dome
5. RIE mould
6. Sports lock
7. Battery compartment (serial number inside)
8. Receiver
9. Push button
10. S receiver tube
11. NP receiver tube
12. HP receiver tube
13. UP receiver tube
14. Left/right indicator
15. Model name and serial number

16 17
Getting started
On&Off function
1. When the battery door is closed, the hearing instrument turns on, and
the default program will be activated.
2. To turn off the hearing instrument, open the battery door. Many
individuals can use their fingernail to pull it open.
iWhenever the hearing instruments are not in use, remember to turn
them off to avoid unnecessary battery consumption.
Delayed activation
Hearing instruments can be turned on once you have placed them on your ears. If you prefer to turn them
on just prior to placing them on your ear, your hearing care professional can activate a function called
Delayed on-activation. This function will delay the time in which the hearing instruments turn on by several
On
Off
seconds after the battery compartment is closed. With Delayed on-activation, a beep will be heard for each
second of the delay period.
Inserting/Replacing the battery
1. Open the battery door completely by using your fingernail.
2. Remove the used battery if present. Insert the new battery with the positive side
in the correct position.
3. Gently close the battery door.
iAlways use new Zinc-Air batteries that have a minimum remaining shelf-life of 1 year.

18 19
iWARNING
1. Remove the batteries to prevent leakage when the hearing instruments are not in use for an extended
period of time.
2. Do not attempt to recharge batteries (Zinc Air) which are not specifically designated as rechargeable
because they may leak or explode.
3. Do not place batteries in your mouth. Consult a physician immediately if a battery has been swal-
lowed, as they can be harmful to your health.
4. Keep batteries away from pets, children and individuals who are mentally challenged.
5. Do not attempt to dispose of batteries by burning them. Used batteries are harmful to the environ-
ment. Please dispose of them according to local regulations or return them to your hearing care
practitioner.
Low battery indicator
Your hearing care professional can set your hearing instrument to give an acoustical indication when the
battery is reaching its end of life. The hearing instrument will reduce amplification and emit a melody if bat-
tery power gets too low. This signal will recur every five minutes until the hearing instrument automatically
switches off. It is recommended that you keep spare batteries on hand.
Low battery indicator (instruments paired with accessories only)
Active usage of the Interton wireless accessories (Remote Control, Phone Clip and TV Streamer) requires
more battery power from the hearing instruments than when these are working on their own. When the
battery in the hearing instrument has depleted to a level at which use of the Interton TV Streamer TV and
Phone Clip cannot be supported, the hearing instrument will play two sets of descending tones. After
this, your hearing instrument and Interton Remote Control will continue to work as usual, but you will not
be able to use your Interton TV Streamer and Phone Clip. At some point the battery level will not support
the remote control either and you will once again hear the descending tones. The hearing instruments will
continue to work as usual. Once a new battery is inserted, full operation of the accessories will resume.

20 21
Sports lock
Sports lock will be applied or adjusted by your hearing care professional.
Inserting/Removing hearing instruments
Insertion (custom RIE moulds)
1. Hold the RIE mould between your thumb and index finger and position its sound outlet in your ear
canal.
2. Slide the RIE mould all the way into your ear with a gentle, twisting movement.
3. Move the RIE mould up and down and gently press to ensure it is positioned correctly in the ear.
Opening and closing your mouth can ease insertion.
4. Make sure the hearing instrument is seated behind the ear..
By experimenting, an easier method may be discovered. With proper insertion, hearing
instruments should fit snugly but comfortably. If the hearing instruments cause irritation of
the ears, contact your hearing care professional.
ICAUTION
Never attempt to modify the shape of the hearing instrument, earmoulds, or tubing your-
self.
iIt may be helpful to pull your ear up and outward with your opposite hand during
insertion.

22 23
Insertion (domes)
1. Hold the receiver tube where it bends, and gently push the dome into the ear canal. Push the dome
far enough into the ear canal so that the receiver tube lies flush with the side of the head.
2. It is important that the tube and the dome fit correctly into your ear.
3. When the dome is placed correctly, you should not be able to see the receiver tube sticking out when
facing a mirror.
ICAUTION
You should never attempt to bend or modify the shape
of the thin tube.
ICAUTION
Use only original Interton/GN Hearing consumables
e.g. tubes and domes.
Removal (RIE molds)
1. Grasp the removal string and pull the RIE mould outward.
2. Consult your hearing care professional if you have difficulties removing the hearing instrument.
Removal (domes)
1. Hold the receiver tube with your thumb and forefinger and pull the tube
outward.
2. Consult your hearing care professional if you have difficulties removing the
hearing instrument.

24 25
Operation of the hearing instrument
Multi-Function button (optional)
The multi-function button is designed to change the volume or lis-
tening programs of the hearing instrument, based on different ways
it is pressed.
When using the program or multi-function buttons to switch programs, each press will move the instrument
to the next program. For example, 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. When you close the battery door and switch the instrument on, it will start in
program 1. Press the program or multi-function buttons if you want to move to a different listening program.
Multifunction button action Default setting New setting
Short press up Increases volume
Short press down Decreases volume
Long press up (2 seconds) Changes programs
Long press down (2 seconds) Activates streaming
If necessary, your hearing care practitioner can change these settings and fill in the following table to indi-
cate the new settings:

26 27
Push button (optional)
Depending on your experience level with hearing instruments, in-
dividual hearing needs, and the type of listening environments you
experience, your hearing care professional may activate additional
programmes. If additional programmes have been activated, the fol-
lowing list explains how they work.
1. You can switch between programmes by pushing the push
button once.
2. You will then hear one or more beeps. The number of beeps indicates which programme you have
selected (one beep = programme one, two beeps = programme two, etc.).
3. When the hearing instruments are turned off and then back on, the hearing instrument always returns
to the default setting (programme one).
Only applicable to wireless devices.
If your hearing system supports wireless functionality and it is paired with wireless accessory like TV
Streamer you can activate streaming mode.
1. Push and hold the push button or multi-function button down for 2 seconds.
2. You will then hear short melody that indicates streaming mode.
To switch back to environmental program push the push button shortly. Hearing Instrument will return to
the default setting (programme one).
For easier everyday use of your wireless hearing instrument controls you can use
wireless remote control. Ask your hearing care professional for more information.

28 29
Flight mode. Only applicable to wireless devices*
IWARNING
When boarding a flight or entering an area where RF transmitters are prohibited, wireless functionality must
be deactivated, as it is not allowed to radiate radio signals during flights or in otherwise restricted areas.
For Crisp devices:
It is possible to disable wireless operation by opening and closing the
battery compartment of the hearing instrument while at the same time pressing
the push button. When disabled manually, wireless operation may be re-enabled
by opening and closing the battery compartment normally, (i.e. without at the
same time pressing the push button).
*Instruments paired with accessories only
For Centro and Step devices:
It is possible to disable wireless operation by opening and closing the battery compartment three times
within a ten second period (open-close, open-close, open-close). Your instruments will now be in flight
mode.
If the hearing instrument is in flight mode, the hearing instrument must have been operating in flight mode
for at least 10 seconds before attempting to enable wireless again. it is possible to re-enable wireless
operation by opening and closing the battery door once. 10 seconds after this operation is completed,
wireless operation will begin again.
iIt is important to wait an additional 15 seconds after wireless function resumes before opening and
closing the battery compartment again for any reason. If the battery compartment is opened and closed
during this 15 second window, flight mode will resume.

30 31
Telephone use
If your hearing instruments are fit with a receiver open dome or receiver tulip dome, you
can probably use the telephone as you normally would by holding it up to your ear canal
opening. If your hearing instruments are fit with a receiver power dome or RIE mould,
finding the optimal position for holding a telephone while using a hearing instrument
may require practice for some individuals, and one or more of the following suggestions
may be helpful.
1. Hold the telephone as you would normally.
2. Hold the telephone towards the top of the ear (closer to where the microphones
are).
3. If whistling occurs, it may take a few seconds of holding the telephone in the same
position before the hearing instrument eliminates the feedback.
4. Any whistling may also be decreased by holding the telephone slightly away from
the ear.
5. Depending on your individual needs, your hearing care professional may activate a programme
specifically for telephone use.
Listen to radio or TV
When listening to the TV or the radio, start out by listening to news commentators since they usually speak
clearly, then try other programmes. If you find it difficult to listen to TV or radio, your hearing care profes-
sional will be able to give you advice on available accessories to enhance your listening capabilities for TV
and radio.
Using Hearing Instruments with iPhone
®
, iPad
®
, and iPod touch
®
(Interton
Centro 6)
Interton Centro 6 is a Made for iPhone instrument and allows for direct communication and control with an
iPhone, iPad, or iPod touch. For assistance in pairing and using these products with your Interton Centro
6 device, please contact your hearing care professional.

32 33
Cellular phones
Your hearing instrument is designed to comply with the most stringent Standards of International Electro-
magnetic Compatibility. However, not all cell phones are hearing instrument compatible. The varying de-
gree of disturbance can be due to the nature of your particular cellular phone or of your wireless telephone
service provider.
If you find it difficult to obtain a good result while using your cellular phone, your hearing care professional
will be able to give you advice on available accessories to enhance listening capabilities.
AutoPhone (optional)
The AutoPhone function, allows your hearing instrument to automatically
switch to your telephone programme when a telephone receiver with an Au-
toPhone magnet is raised to the ear. When the telephone receiver is removed
from the ear, the hearing instrument automatically returns to the previous listen-
ing programme.
Placement of AutoPhone magnets
Place AutoPhone magnet on your telephone receiver to allow operation of the AutoPhone function. In order
to place AutoPhone magnet properly:
1. Clean the telephone receiver thoroughly.
2. Hold the telephone vertically, in a position similar to when making a telephone call.
3. Place the magnets just below the telephone receiver. Make sure not to cover the microphone
openings. If necessary, move the magnet to another position to improve ease of use and comfort
while speaking.
4. If you are not satisfied with the strength of AutoPhone, you can reposition the AutoPhone magnet or
add additional AutoPhone magnets.
iOnly use a recommended cleaning agent to clean the telephone prior to placing the magnet on the
phone.

34 35
AutoPhone usage
Telephones can be used in a normal manner. A short melody will indicate that the AutoPhone feature has
automatically switched the hearing instrument to your telephone programme. Initially, you may need to
move the telephone receiver slightly to find the best position for reliable AutoPhone activation and good
hearing on the telephone. When remove you the telephone receiver AutoPhone will stay activated for a
few seconds to avoid accidental switching off. After that hearing instrument will switch to previously used
environmental programme.
IWARNING
AutoPhone warnings
1. Keep magnets out of reach of pets, children and mentally challenged persons. If a magnet is
swallowed, please seek advice from a medical practitioner.
2. The AutoPhone magnet may affect some medical devices or electronic systems. The manufacturer of
any magnetically sensitive devices (e.g. pacemakers) should advise you regarding appropriate safety
precautions when using your hearing instrument and magnet in close proximity to the medical device
or electronic system in question.
3. if the manufacturer cannot issue a statement, we recommend keeping the magnet or a telephone
equipped with the magnet 30 cm (12”) away from magnetically sensitive devices (e.g. pacemakers).

36 37
ICAUTION
AutoPhone precautions
1. High distortion during dialing or phoning may mean that the magnet is not in the optimal position
relative to the telephone receiver. To avoid the issue, please move the magnet to another place on the
telephone receiver.
2. Only use magnets supplied by Interton/GN Hearing.
Telecoil (optional)
If equipped, a telecoil can be activated by your hearing care professional and accessed through one of
the additional programmes. A telecoil picks up a telephone’s magnetic signal and converts it to sound. An
optional telephone programme may help to improve speech understanding on the telephone. When using
a telecoil programme, the receiver of the telephone may need to be held closer to the hearing instrument.
The handset of the telephone may need to be moved to slightly different positions in order to find the best
reception.
Tele-loop systems (optional)
Many places, such as theatres, houses of worship, and schools are equipped with tele-loop systems.
When using a telecoil programme with tele-loop systems, sound is picked up directly and may improve
speech understanding. If there is no sound from the hearing instruments in a tele-loop system and with a
telecoil programme activated, the tele-loop system may not be turned on or is not operating correctly. If
a facility is not equipped with a tele-loop system, sitting as close as possible to the front may be helpful.

1
32
4 5
38 39
Direct Audio Input (optional)
Use of Direct Audio Input (DAI), which enables a direct connection of the hearing instruments to items such
as television, radio, and remote microphones, may increase speech understanding for some individuals.
The sound source is connected to the hearing instruments by a cable or a wireless FM system to the audio
boot. This accessory connects to the bottom of the hearing instruments, and once properly clicked into
place, the hearing instruments switch to DAI automatically.
Connecting/Disconnecting audio boots
Connecting audio boots
1. Align the tip of the audio boot with the groove just above the battery compartment
and below the model number.
2. Once in place, move the boot in the direction of the battery compartment.
3. Gently click the audio boot onto the hearing instrument.
Disconnecting audio boots
4. Press and hold the button on the front side of the audio boot.
5. Gently remove the audio boot from the hearing instrument.
Care and maintenance
iProper handling
Please follow the following instructions to prolong the durability of your hearing instruments:
1. Keep your hearing instrument clean and dry. Wipe the case with a soft cloth or tissue after use
to remove grease or moisture. Do not use water or solvents, as these can damage the hearing
instrument(s).