BHM-Tech contact mini Instructions d'installation
Gebrauchsanweisung / User Instruction
Digitales Knochenleitungshörsystem
Digital bone conduction hearing system
qBinaural
qMonaural
19
User Instruction
instruction on first-time use, proper handling
and regular maintenance measures.
Content
Hearing system components ...................21
Operation .............................................22
Sound Dynamix (BHM Automatic )............24
Adjustment – programming the contact mini...30
If your hearing system doesn't work.........31
Instructions for cleaning your hearing system...32
Important information ............................32
Service & Repair ...................................34
Many thanks for choosing a quality product
from BHM-Tech. The digital bone conduction
hearing system contact mini is manufactured
in Austria in accordance with provisions set
by the European Medical Device Directive
93/42/EWG, and is in line with the latest
audiological findings and technical innova-
tions. It bears the CE mark, signalling its
adherence to the latest quality and safety
requirements.
By complying with the points outlined in this
User Instruction, the contact mini is sure to
be a reliable partner for many years to come.
Your bone conduction hearing system
contact mini has been designed to compen-
sate for hearing loss. It has been specially
adapted to meet the needs of individual hea-
ring loss by a qualified hearing aid acousti-
cian/doctor. Your hearing aid acoustician /
doctor will provide you with comprehensive
20
User Instruction
Description
The monaural bone conduction hearing
system contact mini consists of one electronic
part and one bone conduction receiver.
The binaural bone conduction hearing
system contact mini consists of two electronic
parts and two bone conduction receiver.
Registered design
No.: AT 010 553 U1
PLEASE READ THIS USER INSTRUCTION
CAREFULLY BEFORE USING YOUR DEVICE.
IF YOU WILL NOT BE WEARING THE HEARING
SYSTEM YOURSELF, PLEASE TAKE NOTE OF
THE FOLLOWING INFORMATION AS RELATES
TO THE PERSON WHO WILL.
Please check that the device functions safely
and is in proper condition before use. The
device must under no circumstances be
used if there is any suspicion that it does not
work flawlessly or is damaged.
Do not place any excessive mechanical
strain on your device. Should it be dropped
on the ground or otherwise damaged, please
send it to your hearing aid acoustician/doc-
tor for checking and repair.
Never give your bone conduction hearing
system to others i.e. please prevent un-
authorised use.
21
User Instruction
1Bone conduction receiver
2Battery compartment
3Battery size 13
4Child lock
5Microphone port
6Volume control
7Programming socket –
below socket cover
8Safety cap
6
3
2
1
Hearing system
components 5
4
7
8
Technical Data according to DIN IEC 118-9
max. acoust.-mech. Sensitivity (dB)
51
max. Output-Force Level (dBOFL) 114
current consumption (mA) 1.06 +-10%
@1.35V
battery size 13
battery life (@ 290mAh battery
capacity)
approx. 270h
22
User Instruction
2. Opening the battery compartment
and inserting the battery
To open the battery compartment in order to
insert or change the battery, press the red
child-safety button with the reverse end of
screwdriver no. 1.
Operating your contact mini
hearing system
Note: Your doctor or hearing aid acoustician
will decide which wearing system is the most
suitable for your contact mini.
Your doctor or hearing aid acoustician will
provide you with full instructions on how to
use your contact mini and accessories.
IN ORDER TO GUARANTEE THE SAFETY AND
FUNCTIONALITY OF THE HEARING SYSTEM,
ONLY ACCESSORIES FROM BHM-TECH MUST
BE USED.
1. Cable connection
Insert the polarised plug of the cable into the
electronic component and the other polari-
sed plug into the bone conduction receiver.
23
User Instruction
The contact mini hearing system has no ON/
OFF switch. The device is switched off by
opening the battery compartment. We re-
commend storing your device in a safe place
after daily use, with the battery compartment
open. Opening the battery compartment also
enables you to dry residual moisture.
Note: Before inserting the battery, it is
imperative to wait for 15 seconds after
removing any adhesive tape on the battery.
Battery
Always use good-quality size 13 batteries.
Your doctor or hearing aid acoustician will be
pleased to advise you in this regard.
If the device is not used for an extended period,
please open the battery compartment, remove
the battery and store the device carefully in
the box supplied. Please keep it in a safe
place out of reach of unauthorised persons.
Please make sure that the battery is inserted
correctly i.e. the terminals are correctly ali-
gned. (Please note the + and - markings on
the battery.) Close the battery compartment
carefully with your fingers until the child lock
is activated.
24
User Instruction
Switching to telecoil – Optional
(only for contact mini with telecoil)
In order to switch the device, set the M-T
switch to the "T" position. The telecoil en-
ables you to receive inductive signals (e.g.
from the telephone or induction loop). This
enables you, for example, to hear the person
on the other end of the line more clearly, as
the microphone is switched off and disruptive
background noises are therefore prevented.
Please note that you must use a phone that
is suitable for a hearing device in order to
make optimum use of the telecoil. The tele-
coil can also be used in public buildings that
have an induction loop, for example in
schools, theatres, concert halls or cinemas.
Battery warning tone
Contact mini is equipped with a battery
warning tone. When the battery is weak,
amplification will automatically be reduced.
When the warning tone sounds, the battery
must be changed immediately.
Sound Dynamix (BHM Automatic )
In Automatic mode, the signal received by the
microphone is analysed and categorised into
different hearing situations.
These are:
• Quiet environments
• Speech in quiet environments
• Speech in background noise
• Music and movie
• Background noises
• Wind noises
The parameters of the hearing system are
always configured according to this categorisati-
on such that an optimal level of hearing comfort
and optimal speech comprehension are attained.
25
User Instruction
acoustician.
Select the most
comfortable
volume for you by
rotating the volume
control. The volume
will become louder by
turning it clockwise, or
quieter by turning it anti-
clockwise.
Please note:
Please make absolutely sure that your
contact mini wearing system is positioned
correctly on the head and that the conductor
plate of the bone conduction receiver rests
against the head. Please make sure that the
conductor plate is touching the skin.
• Hair between the conductor plate and the
skin may reduce transmission considerably.
• Poor contact with the skin and a high
volume may cause feedback.
Set the M-T switch to "T" to hear directly,
without the interference of the microphone
and disruptive noises.
It is also possible to select a combined mi-
crophone/telecoil mode using the fitting
software. This mode enables you to receive
inductive signals whilst also hearing your
environment better as the microphone is
switched on. The device is supplied with the
combined mode M/T.
3. Setting the volume
Adjust the volume of the contact mini by
turning the blade of screwdriver no. 1 on
the volume control (electronic component).
Please consult your doctor or hearing aid
acoustician about the ideal volume for you.
Please ensure that you are properly informed
by your doctor or hearing aid acoustician as
regards setting the volume, and do not ad-
just the volume of your contact mini without
the agreement of your doctor or hearing aid
26
User Instruction
Assembling/disassembling components
1. Electronic
2.Bone conduction receiver
4. Attaching the contact mini
to the wearing system
Both the electronic component and the bone
conduction receiver are fitted with push
buttons, which facilitate attachment to the
selected wearing system, for example a head
band or head frame.
CAUTION: In particular for infants, please
ensure that the wearing system is repositi-
oned at regular intervals due to the infant's
soft cranial bones. Your doctor or hearing aid
acoustician will provide instructions.
27
User Instruction
When using a hair band, the push button
on the bone conduction receiver loses its
function and is covered by the safety cap
supplied upon delivery (8).
Always make sure that the electronic component
is mounted away from the head at the front; and
that the bone conduction receiver is mounted to-
wards the head at the back. Improper assembly
may cause the contact mini to malfunction.
Attaching the electronic component and the
bone conduction receiver to a hair band or
head band
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