Efficient Networks CENTRA Life, CENTRA S, CENTRA VC User Manual
Siemens Hearing Instruments
CENTRA
®
Instruction Manual
for CENTRA
®
S, S VC, and Life
Behind-the-Ear Hearing Instruments
CENTRA S, S VC, and Life BTEs 1
Your CENTRA
®
Hearing Instruments
Siemens CENTRA®BTE (Behind-the-Ear) hearing
instruments are designed for comfort, performance, and durability. They fit comfortably
behind your ears and are attached to custommade earmolds or flexible LifeTubes and
LifeTips. Your CENTRA BTE will look similar to
one of the following illustrations (Fig. 1).
Microphones
Earhook
Memory button
Programming socket*
Audio input flap
CENTRA S
Battery
compartment door
2 Siemens Hearing Instruments
Centra S and S VC available with S-LifeTube
Microphones
CENTRA S/S VC with S-LifeTube
Memory button
Audio input flap
LifeTip
LifeTip
adapter
S-LifeTube
Battery
compartment
door
Microphones
Programming socket*
Volume control
wheel
Battery
compartment
door
Earhook
Programming
socket*
Audio
input flap
CENTRA S VC
CENTRA S, S VC, and Life BTEs 3
Fig. 1: Location of features
*Audiologist or Hearing Care Provider’s Use Only
LifeTube
Microphone
ports
LifeTip
LifeTip
Adapter
CENTRA Life
Battery
compartment
door
Programming
socket*
4 Siemens Hearing Instruments
Identifying the left and right
hearing instruments
CENTRA BTEs may be color-coded for your
convenience. The left ear hearing instrument
may
have a blue typeplate, and the right ear hearing
instrument may have a red typeplate (Fig. 2).
Fig. 2: Location of typeplate on
CENTRA S/CENTRA S VC
In addition, on CENTRA Life BTEs, the left ear
hearing instrument has a blue number on the
LifeTip Adapter, and the right ear hearing
instrument has a red number on the LifeTip
Adapter (Fig. 3).
Typeplate
CENTRA S, S VC, and Life BTEs 5
Fig. 3: Location of right and left designator
on LifeTip Adapter on CENTRA Life
Digital hearing instrument technology
Inside your hearing system, the microphone,
analog-to-digital converter, digital signal
processor, receiver, and other specialized
components process sound that is directed
tothe eardrum and auditory system.
The microphone picks up sound waves from the
air and converts them to electrical signals.
The analog-to-digital converter encodes the
electrical signals into a format that is usable
by the digital signal processor, which has been
programmed by your Audiologist or Hearing Care
Provider for your particular hearing loss. The
receiver converts the digitally processed signal
directly back into sound waves.
Color-coded number
on Tip Adapter
6 Siemens Hearing Instruments
Using your CENTRA
hearing instruments
Battery size
The chart below provides the proper battery
size used in your hearing instruments. It is
recommended that you also check with your
Audiologist or Hearing Care Provider regarding
the correct battery.
Model
Size
CENTRA S Behind-the-Ear 13
CENTRA S VC Behind-the-Ear 13
CENTRA Life Behind the Ear 312
Inserting the battery
To insert the battery into the hearing instrument,
use your fingernail to swivel open the door of the
battery compartment. Place the proper size
battery (see "Battery" section or consult your
Audiologist or Hearing Care Provider) in the
battery compartment so that the "+" symbol on
the battery coincides with the "+" mark on the
battery compartment door.
CENTRA S, S VC, and Life BTEs 7
Gently close the battery compartment. Do not
force the door shut. If it does not close easily,
check to see if the battery was inserted properly.
When the battery door is completely closed,
your hearing instrument is ready for
operation (Fig. 4).
Fig. 4: Inserting the battery
CENTRA Life
Battery
+
-
Opened battery
compartment door
CENTRA S/CENTRA S VC
8 Siemens Hearing Instruments
Battery compartment door lock
CENTRA S and CENTRA S VC hearing instruments
are equipped with a lock that prevents the
unintentional opening of the battery
compartment. This feature is located on the inner
side of the battery compartment door.
To lock the battery compartment, open the
compartment door to the first catch. Push the
slide toward the right. To unlock the battery
compartment for opening, open the door to the
first catch and push the slide to the left (Fig. 5).
Your Audiologist or Hearing Care Provider can
instruct you onthe use of this feature, if required.
Remember, the battery should be removed when
your hearing instruments are not in use. This
prevents possible damage from battery leakage
and avoids draining the batteries if the hearing
instruments are not switched off.
CENTRA S, S VC, and Life BTEs 9
Fig. 5: Battery compartment door lock
Low battery indicator
Your hearing instrument may be programmed to
inform you when the battery should be replaced
for best performance. If this is activated in your
hearing instruments, you may hear two long,
low-pitched beeps and/or experience low
amplification power or volume. Change the
battery immediately when either of these occur.
WARNING: Choking hazard posed by small parts.
• Keep hearing instruments, batteries, and
accessories out of children’s reach.
• If swallowed, consult a physician or a hospital
immediately.
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