Comtel CT-1900 Bedienungsanleitung Seite 7

(+/-), into the provided recesses (see housing
embossment).
Now close the battery compartment lid and
push the clips into the initial position.
5. Initial operation
5.1. Transmitter
1. Position the transmitter vertically in the room
to be supervised to ensure optimal transmis-
sion. The front of the device should if possible
be directed towards the person to be super-
vised (e. g. your baby). Furthermore ensure
that the noises and/or the sounds are not dis-
turbed by obstacles.
2. Proceed as described in "8. Charging the
rechargeable batteries" for accumulator op-
eration.
3. Connect one of the two enclosed power
packs to the transmitter socket (3), to operate
the device by mains supply.
4. Connect the power pack to the mains (check
beforehand, whether the performance data
on the rating plate of the power pack corre-
spond to your mains supply data).
5. The device is switched on and one of the
two transmission channels selected with the
transmitter slide switch (5). The device trans-
mits on channel 1 in the position "K1" and on
channel 2 in the position "K2". The transmitter
sensitivity can be set according to your needs
with help of the sensitivity regulator (4).
6. A signal transmitted by the transmitter is dis-
played on the illuminated green transmission
indicator (2).
7. The transmitter automatically switches into
the energy saving mode, if no more noises
are recorded. This is indicated by the illumi-
nated red transmission indicator (2).
Note! In order to avoid malfunctions during the
use of the power pack leave the rechargeable
batteries in the device.
The operational status indicator lights up red as
soon as the transmitter is connected to the pro-
vided power pack, if the device is switched off,
provided that there are no rechargeable batter-
ies in the device.
We recommend observing a distance of at least
1 m between transmitter and baby for safe-
ty reasons and to ensure optimal noise trans-
mission.
5.2. Receiver
1. Position the receiver vertically in your vicinity.
2. You can operate the receiver either with the
enclosed charging station from your mains
supply or with the enclosed rechargeable bat-
teries.
3. Proceed as described in "8. Charging the
rechargeable batteries" for accumulator op-
eration.
4. Connect one of the two enclosed power
packs to the mains socket of the charging
station, if you want to operate the device by
charging station.
5. The device is switched on and one of the two
transmission channels selected with the slide
switch (5). The device receives on channel 1
in the position "K1" and on channel 2 in the
position "K2". The receiver volume can be set
according to your needs with help of the vol-
ume control (4).
6. The LED (2) lights up red in the ready status
as soon as the receiver is connected to the
charging station. The LED (2) lights up green,
if the device receives a signal. The receiver
is furthermore provided with a LED chain (7).
The LED chain not only acoustically, but
also visually signals a transmitted noise. The
number of lit up diodes corresponds to the
amplitude of the received noise.
7. The receiver automatically goes into the en-
ergy saving mode some seconds after the de-
vice has ceased to receive any signals. This is
indicated by the illuminated red reception in-
dicator (2).
Note! The rechargeable batteries must stay in
the receiver when using the charging station;
the device does not work without rechargea-
ble batteries!
Further original power packs can be
ordered with the enclosed order card.
The operational status indicator (2) fl ashes
alternatively red and green during reception
when the receiver, which receives a signal from
the transmitter, is operated via the charging
station with discharged rechargeable batteries.
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The fl ashing on the charging station does not
effect the reception range.
6. Functional test
It is very important to check the function of
the babyphone prior to initial use. Position the
transmitter in the required room and e. g. turn
a radio on at low volume. Then set the transmit-
ter sensitivity regulator (4) to the required re-
sponsivity. The further you turn the regulator up-
wards, the more sensitive the transmitter. Now
walk through your rooms with the receiver and
set the desired volume.
7. Battery monitoring
Insuffi cient transmitter and receiver voltage will
be indicated during rechargeable battery or bat-
tery operation. The transmitter and receiver op-
erational status indicators (2) fl ash red, if the
operating voltage is too low. The receiver ad-
ditionally sounds an acoustic signal, if the re-
chargeable batteries are discharged.
8. Charging the rechargeable batteries
The rechargeable batteries provided for the
transmitter and receiver must be fully charged
before initial use.
Caution! Only exchange defective rechargea-
ble batteries for original rechargeable batteries.
Normal Micro rechargeable batteries AAA can-
not be charged in these babyphones.
Further original rechargeable batter-
ies can be ordered with the enclosed
order card.
We recommend operating both devices with the
provided power packs, especially for night mon-
itoring, to ensure perfect monitoring. It could
otherwise happen that the battery signal is trig-
gered according to the charging state during
normal rechargeable battery operation during
the night and you are woken up.
8.1. Charging the receiver battery
• Charge the receiver batteries by connecting a
power pack to the charging station (1).
• Charging starts automatically as soon as you
have connected the power pack to the charg-
ing station and the receiver is in the charging
station. The charging procedure is indicated
by the green fl ashing LED (2).
• The charging time is approximately 10 hours
with completely discharged rechargeable bat-
teries and switched off device. The charging
time doubles, if the receiver is activated.
• Overloading the rechargeable batteries is
technically impossible.
• The LED (2) extinguishes after charging (when
the device is switched off).
8.2. Charging the transmitter battery
• Charge the transmitter batteries by connect a
power pack to the transmitter socket (3).
• Charging starts automatically as soon as you
have connected the power pack to the trans-
mitter. The charging procedure is indicated by
the green fl ashing LED (2).
• The charging time is approximately 10 hours
with completely discharged rechargeable bat-
teries and switched off device. The charging
time doubles, if the transmitter is activated.
• Overloading the rechargeable batteries is
technically impossible.
• The LED (2) switches to red after charging
(when the device is switched off).
9. Consumer note
Please note that all NiCd and NiMH rechargea-
ble batteries only achieve their full capacity after
4-6 charging cycles.
10. 864 MHz technology
The unit operates in the 864 MHz frequen-
cy range and thereby eliminates the possibil-
ity of disturbances by CB and amateur radio
operators.
11. Digital coding
The radio security and the freedom from inter-
ference of this babyphone are additionally im-
proved by a non-audible and proven digital cod-
ed signal. The coding causes the receiver to
only switch itself on, if noises are transmitted
from your own transmitter e. g. the supervised
baby. CT-1900 has 16 different digital codes
available, which you can individually adjust to
your environment with the DIP switches (see
fi g. 3). Receiver activation by other transmitters
or other baby monitoring systems is therefore
almost impossible.
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