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Jacob Jensen Smoke Alarm Optical JBXS03 Manual

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Congratulations on the purchase of your new JACOB
JENSEN
TM
Smoke Alarm.
The product is designed in Denmark by Jacob Jensen, whose products have
gained international recognition for their original, simple and classic design.
Jacob Jensen has received around 100 prizes from around the world and has
19 products included in The Design Study Collection and The Design Collection
of the Museum of Modern Art in New York.
The JACOB
JENSEN
TM
Smoke Alarm is an optical smoke detector for use in private
homes. The smoke alarm meets the requirements stated in EN 14604:2005/
AC:2008.
The smoke alarm contains an optical smoke detector and reacts instantly to all
sorts of visible smoke, including smoke from glowing and smouldering fire.
The smoke alarm is equipped with an acoustic and a visual alarm. It is self-
calibrating, and as such it automatically checks and adjusts the sensitivity of
the smoke detection. Furthermore, it is equipped with a low battery indication
and a test button, which can also be used for a brief time span reduction of the
sensitivity in order to avoid a false alarm.
Smoke alarm positioning
Best protection is obtained by installing a smoke alarm in the middle of the
ceiling in every room. However, as a minimum, there should be at least one
smoke alarm fitted to the ceiling between the bedroom and the living room or
the kitchen. Most fires break out in the living room or in the kitchen whilst we
are sleeping. If the bedrooms are situated in several different areas in the home,
more smoke alarms should be installed. Recommended max. distance between
two alarms is 10 m. In a house with more than one floor, there should be at
least one smoke alarm on each floor. It is important to test that the smoke alarm
can be easily heard from every bedroom. If necessary, a smoke alarm should be
installed in the bedroom. The smoke alarm should be placed in the middle of the
ceiling, at least 0,5 m from a wall or corner.
When installing the alarm in a room with a sloped or peaked roof, position it
90 cm horizontally from the highest point as dead air at the apex may prevent
smoke from reaching the unit.
Do not install smoke alarms in the following locations
1. In a kitchen or a bathroom. Smoke from cooking or baking can result in false
alarms.
2. Close to an air duct or extractor fan. They can extract the smoke thus
preventing the smoke alarm from operating correctly.
3. In a garage where naturally combustible particles can result in false alarms.
4. In a room with great temperature fluctuations (between 0 – 40 degrees Celsius)
and/or high air humidity (max. 85 % relative air humidity).
5. Close to electric installations with fluorescent lighting.
6. In the top of a roof ridge or other places where the air may become stagnant.
Apartment / detached house
In a large apartment with a long corridor at least two smoke alarms should be
installed as smoke spreads in a hall.
Smoke alarm
House / terraced house
In houses with more than one floor a smoke alarm should be installed on each
floor as smoke rises.
Stand-by / Normal operation
During stand-by / normal operation the smoke alarm gives a visual signal every
eighth second. The smoke detection takes place every eighth second.
Pause function
By pressing the red test button, the sensitivity is reduced by 50% for 10 minutes.
This function is useful in order to avoid an alarm e.g. smoke from a cold stove.
Note: After 10 minutes the smoke alarm will automatically revert to normal
operation (100% sensitivity).
UK
JACOB
JENSEN
TM
Optical Smoke Alarm (registered design)
… 16 …


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