Bedienungsanleitung Jablotron SD-728 (Seite 1 von 2) (Englisch)

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The SD-728 stand-alone smoke detector 1 / 2 MZZ55000

The SD-728 stand-alone smoke detector

The SD-728 is used to detect fire hazards in interior residential or commercial

buildings (non- industrial). It is battery-powered with a built-in warning siren and red

LED. It warns of fire to provide sufficient time to extinguish the fire, or to leave the

premises and make calls for help. Smoke detectors need to be installed in the right

place, regularly maintained and tested as described in this manual. The optical

smoke detector works on the principle of scattered light and is very sensitive to

large dust particles, which are dense, and is less sensitive to smaller particles

generated by the combustion of liquids such as alcohol.

Detector range

The smoke detector must be installed so that any smoke easily drifts into the

detector, such as on the ceiling. It is suitable for residential buildings, but not

suitable for free spaces, outdoor environments or interiors with an extremely high

ceiling where fire by-products would not reach the detector position.

The detector must always be placed in the section leading to the exit of the

dwelling (escape route), see Figure 1. If the dwelling has a floor area greater than

150 m

, an additional detector is required, see Fig.2.

An apartment block must be equipped with a detector in each apartment. In family

houses and residential flats or maisonettes a detector must also be placed at the

highest point of the common hallway or spaces (escape routes), see Fig.3.

KITCHEN

MINIMUM SECURITY

FOR MORE SECURITY

LIVING ROOM

BEDROOM

BEDROOMS

Fig. 1

BEDROOMS

BEDROOM

LIVING ROOM

KITCHEN

MINIMUM SECURITY

FOR MORE SECURITY

Fig. 2

It is recommended to place

additional detectors in rooms where

people sleep in rooms with an

increased risk of fire, see Fig.2.

Positioning on level ceilings

Place the detector in the center of

the room, as level as possible.

Detectors must not be recessed into

the ceiling (worse conditions for the

spread of smoke). Never place the

detector in a room corner (ensure a

distance of at least 0.5 meters from

the corner), see Fig 4.

BED

ROOM

KITCHEN

MINIMUM SECURITY

BED

ROOM

BED

ROOM

Fig. 3

• Installation on sloping ceilings

If the ceiling is not suitable for mounting on a level surface (eg a room under a

roof ridge), the detector can be installed as in Figure 5.

0.5m

CEILING

BEST LOCATION

(CENTRE OF CEILING)

ACCEPTABLE

LOCATION

Fig. 4

90cm

Fig. 5

• Walls, partitions, barriers and lattice ceilings

The SD-280 must not be installed closer than 0.5 m from any wall or partition. A

narrow room with a width of less than 1.2m requires the detector(s) to be placed at a

distance of at least one third of the room’s width away. In the case of separating walls

(partitions, warehouse objects) which do not reach the ceiling, the space is considered to

be fully separated if the gap between the top of the separating wall and the ceiling

does not exceed 0.3 m. A free space of at least 0.5m is required under the detector.

Irregularities in ceiling shape which do not

exceed 5% of ceiling height are considered

insignificant – the ceiling can be regarded as being even and limits from the table are

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Jablotron SD-728 Anleitung

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