Bellman & Symfon BE1555 Manual De Usuario página 22

Limitations of CO alarms
1 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.
2 Carbon monoxide must enter the CO alarm for it to be detected. There may be carbon mon-
oxide 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 obstructions can prevent the CO reaching the alarm.
For these reasons we recommend CO alarms are fitted both near and in bedrooms, particu-
larly 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.
3 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 prob-
ability 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.
4 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.
5 CO alarms are not a substitute for life insurance. 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.
6 CO alarms are not suitable as early warning smoke alarms. Some fires produce carbon mon-
oxide, 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.
7 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.
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Note: Carbon monoxide alarms, with electrochemical sensors have a cross sensitivity to hy-
drogen. This means that they can alarm due to sensing hydrogen being produced by batteries
being incorrectly charged such as on boats or with battery 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.
WARNING: THIS CO ALARM IS DESIGNED TO PROTECT INDIVIDUALS FROM THE ACUTE EFFECTS
OF CARBON MONOXIDE EXPOSURE. IT WILL NOT FULLY SAFEGUARD INDIVIDUALS WITH SPE-
CIFIC MEDICAL CONDITIONS. IF IN DOUBT CONSULT A MEDICAL PRACTITIONER.
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 signals occurring on or near their operating frequencies,
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regardless of the radio settings.
Radio transceiver equipment should be tested regularly, at least weekly. This is to deter-
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mine, whether there are sources of interference preventing communication, that the radio
paths have not been disrupted by moving furniture or renovations, and so generally protect
against these and other faults.
This equipment generates, uses and can radiate radio frequency energy and, if not installed
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and used in accordance with the instructions, may cause harmful interference to radio and
television reception. However, there is no guarantee that interference will not occur in a
particular installation. If this device does cause such interference, which can be verified by
turning the device on and off, the user is encouraged to eliminate the interference by one or
more of the following measures:
Re-orientate or re-locate the unit.
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Increase the distance between the CO alarm and the device being affected.
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Consult the supplier or an experienced radio/television technician.
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EN
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