BHM contact star evo1 Installation instructions

Gebrauchsanweisung/User Instruction
Digitales Knochenleitungshörsystem
Digital bone conduction hearing system

11
User Instruction
Your BHM hearing spectacles have been de-
veloped and manufactured according to the
latest audiological information and state-of-
the-art technical innovations. Please adhere
carefully to the User Instructions to ensure
that your hearing spectacles will remain a
reliable partner for many years.
Intended Use: Bone-conduction hearing
systems are designed in such a way as to
compensate hearing impairment by proces-
sing and amplifying the sound as well as
transferring it to the inner ear.
Users: The hearing system is intended to be
used by adults and children.
Indications: For mild to moderate hearing loss.
Contraindications: Irritated skin or pressure
marks possible.
IMPORTANT!
Your hearing spectacles have been especially
adapted by a qualified hearing aid expert to
compensate for your individual hearing loss.
Your hearing aid expert will also inform you
about the correct use and operation of the hea-
ring spectacles, and supply you with informa-
tion on regular maintenance measures. Never
pass on your hearing spectacles to another
person i.e. please prevent unauthorized use.
Contents
Hearing device components....................12
Insertion of battery ................................13
Switching on ........................................13
Sound Dynamix (BHM Automatic )............13
Switching off ........................................14
Volume ................................................14
In-situ audiometry .................................15
Troubleshooting.....................................15
Instructions for cleaning your hearing system..16
Important notes.....................................16
Service & Repair ...................................18

12
User Instruction




Volume control
O-T-M switch
 Battery
Battery compartment
Bone conduction receiver
Hearing device components
Technical data according to DIN IEC 118-9
Max. acoustic-mechan. sensitivity level / dB 52
Max. output force level / dB OFL 111
Current consumption in mA < 1
Source of current / battery type 675
Average battery lifespan in hours
zinc/air 675 (capacity 610 mAh) 640
Symbol figure

13
User Instruction
Insertion of battery
Open battery compartment with finger
nail. Take care to insert the battery the
correct way around (observe the +-mark).
Close the battery compartment with your
finger until it clicks fully shut.
Attention: After removal of possible adhesive
tape on the battery, please wait for 15
seconds without fail before inserting the
battery!
Battery size: High quality 675 size or
equivalent. Please remove the battery if the
device is not used for long periods.
Note: Please change battery if there is a
battery warning tone.
Switching on and off
Switching on:
To switch on the device put the O-T-M
switch in position “M” (= microphone).
Acoustic signals are received via the micro-
phone amplified in the device and transmit-
ted to the ear via the receiver.
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 al-
ways configured according to this categorisation

14
User Instruction
such that an optimal level of hearing comfort and
optimal speech comprehension are attained.
Switching over to telephone coil:
In order to switch over the device put the
O-T-M switch into position “T”. The tele-
phone coil enables you to hear better the
person on the other end of the line by
switching off the microphone and thus re-
moving disturbing background noise. Please
note that your telephone must be designed
for telecoil use.
The telecoil can also be used in public
buildings fitted with an induction loop, for
example, schools, theaters, concert halls and
cinemas. Put your O-T-M switch in position
“T” and hear directly, without additional
operation of the microphone and without
disturbing noises.
Switching off:
To switch off the device, put the O-T-M
switch  in position “0”.
Volume
Select the most pleasant volume using the
volume control . The volume becomes
higher by moving the control forward and
lower by moving the control backward.
Important notes on operating the hearing
spectacles:
Switch off the device by using the O-T-M
switch , put on your glasses, select volume
level low and switch the device back on.
Select the most pleasant volume level only
after switching on and checking volume of
device!
Special care must be taken to ensure that
the bone conduction receiver surface 
is firmly seated against the mastoid bone.
Partial or weak contact will cause feedback
(whistling).

15
User Instruction
Recommendation:
To get the best use out of your bone
conducted spectacles, please adjust the
sound intensity to your environment using
the volume control.
In-situ audiometry
You can use In-situ audiometry for bone
conduction (BC) to ensure that the hearing
system fits perfectly. Hearing devices
individually fitted to the client are used
to determine the BC hearing threshold.
For further information please refer to the
instructions for In-situ audiometry.
Troubleshooting
If your hearing device does not work:
• Please bear in mind that your hearing
device automatically switches off if the
battery is low.
• Check whether the hearing device is
switched on and the battery compartment
is closed properly.
• Does your battery still supply enough power
and is it correctly inserted? (Always take a
spare battery with you!) – Try a new battery
from a new pack.
• Check whether the O-T-M switch is in the
correct position.
• Is the volume control selected properly?
– If the device whistles, please check
whether the hearing spectacles fit properly
against the head.
• If you hear buzzing or whistling noises in
your device, this may not necessarily be
the fault of your hearing device. It may be
caused by interference from a mobile
phone or another electronic instrument.
• If you have tried everything and the hearing
device still does not function properly,
please take it to your hearing aid expert
with a short description of the problem.

16
User Instruction
Instructions for cleaning
your hearing system
In order to ensure the warranty and guarantee
of your hearing system, please note that your
hearing system must be cleaned thoroughly
and properly at least once a day.
Wipe your hearing device with a clean, dry
cloth: please make sure that your fingers are
also clean and dry. This enables you to remove
sweat and moisture from your hearing device.
Furthermore, it is necessary to remove the
batteries from your hearing system at night
after cleaning. Store overnight with the
battery compartment open so that any
moisture in the device can evaporate.
Remove your hearing device before
showering, bathing or using the sauna,
and before you put on body care products,
hairspray or make-up powder.
Such deposits can also soil the hearing
device, thus impairing or damaging the
flawless functioning of your hearing system.
Important notes
The hearing spectacles are adjusted according
to the patient's hearing loss by an authorized
hearing aid expert. The end user is kindly
requested only to operate those easily
accessible controls designed for his or her
use, according to the instructions.
WARNING!
Incorrect use of your hearing instrument and
batteries may be hazardous to your health.
Please read the following points carefully.
• Keep the hearing spectacles, which you
have taken off, out of reach of other
persons or children!
• Before using your hearing spectacles, turn

17
User Instruction
volume to “soft“. Select the most pleasant
volume only after having performed a
listening check of your hearing device.
• These hearing spectacles are able to
transmit signals of very high volume. In
order to avoid possible damage to the ear,
the fitting of the device must be carried
out by an authorized hearing aid expert.
• Never try to recharge a disposable battery!
• Swallowing batteries may be hazardous
to your health and may cause severe
injuries and even death!
For this reason: Never store batteries
together with medicine! Immediately
consult a doctor if a battery has been
swallowed!
• Incorrect manipulation or rough handling
of the hearing spectacles may cause
detachment of small components. If such a
component gets into your ear, immediately
consult a doctor.
• Never expose your hearing spectacles to
extremely hot sun (e.g. behind the
windshield of a car), to direct heat (do not
put them on a radiator) or severe cold
(overnight in a cold car) and avoid contact
with chemicals and strong detergents.
• Always bear in mind that hearing devices
do not properly function if e.g. the battery
is low. This is especially hazardous if you
are in traffic or are otherwise dependent
on warning signals.
• Switch off your hearing instrument in mines
or other areas where explosions could take
place, unless your hearing device is
especially certified for such use.
• Never change batteries of the hearing
spectacles in the presence of babies and
small children.
• Store batteries out of reach of babies and
small children.
• Consult a doctor in case of skin irritations
of the ear or head.

18
User Instruction
Further important points:
• Your hearing spectacles and accessories
belong to that group of modern technological
products that must be disposed of in a
special environmentally-friendly way. Please
take care that you dispose of your hearing
device and accessories at a hazardous
waste disposal site without fail. Your
hearing aid expert will be glad to assist
you in this matter.
• For extra hygienic and skin-protective
cleaning we recommend special cleaning
agents available at specialist shops.
Never use benzine or other similar
chemical detergents.
• It is imperative that defective hearing
spectacles must be repaired by an expert.
Never try to open the hearing device
yourself. Improper manipulation will cause
any guarantee to become null and void. If
your hearing spectacles are defective,
please consult your hearing aid expert.
Regular maintenance and check-ups by
your hearing aid expert may prevent the
need for repairs.
Service & Repair
If your hearing system does not work, it must
be repaired by a qualified service technician.
Do not try to open the hearing system
casing, as this will void the guarantee and
warranty. Please contact your hearing aid
acoustician/doctor if your hearing system
needs repair.

Version 1.7 - 08/2017 Design: Rabold und Co. / Photo: Erwin Muik
Änderungen des Inhaltes im Sinne einer technischen Verbesserung vorbehalten.
Content may be changed without notice in order to improve product performance.
BHM-Tech Produktionsgesellschaft mbH
Grafenschachen 242
7423 Grafenschachen, Austria
www.bhm-tech.at
nach EU-Richtlinie 93/42/EWG
Qualitätsmanagementsystem nach DIN EN ISO 134850297
According to EU directive 93/42/EEC
Quality management system according to DIN EN ISO 13485
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