Bellman & Symfon BE1555, Руководство пользователя

Страница: 12 / 15

24 25
EN
Recognise that CO poisoning may be
the cause when family members suffer
from “flu-like” symptoms when at home
but feel better when they are away for
extended periods.
The CO alarm will not work without
good batteries. If the batteries have
been drained the alarm will not give
protection. Button test the alarm
monthly and on return from holidays
and other long absences.
Carbon monoxide must enter the CO
alarm for it to be detected. There may be
carbon monoxide in other areas of the
house (e.g. downstairs, in a closed room
etc) but not in the vicinity of the CO
alarm. Doors, air draughts and obstruc-
tions can prevent the CO reaching the
alarm. For these reasons we recommend
CO alarms are fitted both near and in
bedrooms, particularly if bedroom doors
are closed at night. Additionally, install in
rooms where members of the household
spend much of their time, and in rooms
with potential sources of CO gas.
The CO alarm may not be heard. The
sound output is loud, but it may not
be heard behind a closed door or if it is
too far away. A CO alarm connected to
a Visit receiver improves the probability
that they will be noticed. The alarm may
not wake up somebody who has taken
alcohol or drugs. The alarm sound may
be masked by other sounds such as
T.V., stereo, traffic noise etc. Fitting CO
alarms on either side of closed doors will
improve their chance of being heard.
CO alarms don’t last indefinitely. CO
alarms are sophisticated electronic
devices with many parts. Although
the alarm and its component parts
have undergone stringent tests, and
are designed to be very reliable, it is
possible that parts can fail. Therefore,
you should test your CO alarm monthly.
The CO alarm must be replaced when
the “REPLACE UNIT BY” date has been
reached. Check the label on the side of
the alarm.
CO alarms are not a substitute for life in-
surance. House-holders are responsible
for their own insurance. The CO alarm
warns of increasing CO levels, but we
do not guarantee that this will protect
everyone from CO poisoning.
CO alarms are not suitable as early warn-
ing smoke alarms. Some fires produce
carbon monoxide, but the response
characteristics of these CO alarms are
such that they would not give sufficient
warning of fire. Smoke alarms must be
fitted to give early warning of fire.
The CO alarm does not detect the
presence of natural gas (methane),
bottled gas (propane, butane) or other
combustible gases. Fit combustion gas
alarms to detect these.
Carbon monoxide alarms, with electro-
chemical sensors have a cross sensitivity
to hydrogen. This means that they can
alarm due to sensing hydrogen being
produced by batteries being incorrectly
charged such as on boats or with bat-
tery back-up systems such as those used
with alternative energy systems.
The CO alarm will alarm with 500 ppm
H2 after between 10- and 40-minutes
exposure.
THIS CO ALARM IS DESIGNED TO PRO-
TECT INDIVIDUALS FROM THE ACUTE
EFFECTS OF CARBON MONOXIDE EXPO-
SURE. IT WILL NOT FULLY SAFEGUARD
INDIVIDUALS WITH SPECIFIC MEDICAL
CONDITIONS. IF IN DOUBT CONSULT A
MEDICAL PRACTITIONER.
Limitations of CO alarms
Limitations of radio signals
The CO alarm from Bellman & Symfon is very reliable and is tested to high standards. However,
due to its relatively low transmitting power and limited radio range (required by regulatory
bodies) there are some limitations to be considered:
Receivers may be blocked by radio sig-
nals occurring on or near their operating
frequencies, regardless of the radio
settings.
Radio transceiver equipment should be
tested regularly, at least weekly. This is to
determine, whether there are sources of
interference preventing communication,