Bedienungsanleitung Jablotron SD-401 (Seite 1 von 1) (Englisch)

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SD-401 Self-containd fire detector 1 / 1 MKY51002

1293-CPD-0077

The SD-401 self-contained fire detector

This device is designed to detect the presence of fire inside residential or commercial

buildings. It should not be installed in industrial premises. The battery-powered detector

has a built-in local warning siren combined with a red LED indicator.

The detector combines an optical smoke sensor with a heat sensor. Both sensors

have their outgoing signals processed digitally, resulting in higher false alarm

immunity. The optical sensor works using a light diffusion principle and is very

sensitive to the presence of large-sized particles which are characteristic of dense

smokes. By contrast, the sensor is less sensitive to small-sized particles which are

typical of cleanly burning fires. In particular, the smoke sensor is not capable of

detecting the by-products of cleanly-burning fluids such as alcohols, for instance.

This deficiency is compensated for by the built-in heat sensor. This sensor provides

a slower reaction when compared to the smoke sensor, but is much better at

reacting to fires with rapidly rising heat producing only a little smoke.

Smoke/heat sensor participation is configurable by DIP switches.

Detection range, detector positioning

Exposing fire conditions to the smoke and heat sensors requires some level of air

circulation. It is therefore necessary to install the SD-401 detectors in such a place

on the ceiling that (in the case of fire) smoke masses are forced to go in the direction

of the detector’s position. This can usually be achieved in most buildings. However,

the SD-401 is not suitable for installation in outdoor spaces or interiors with an

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

The following table shows the detector’s working range in relation to the height of

the ceiling on which the detector is installed. The range is expressed as the radius of

the circular fire detection area for a detector installed on a ceiling directly above.

Ceiling height (m)

< 4.5 4.5-6 6-8 8-11 11-25 > 25

Smoke

detection

7.5* m 7.5* m 7.5* m 7.5* m

Not

suitable

Not

applicable

Heat

detection

5* m 5* m 5* m

Not

suitable

Not

applicable

Not

applicable

Not applicable – meant for a particular ceiling height range

Not suitable –not usually used in such cases

* – the radius of the detection area below the detector

• Installation on a horizontal level ceiling

Due to the possible occurrence of a cold air layer right under the ceiling, the

detectors must not be imbedded into the ceiling

. The distance between any

point to be protected and an imaginary vertical line from the detector down to the

floor must not exceed the radius indicated in the table.

• Installation on a sloping ceiling

If the SD-401 is installed just under an apex formed by the joining of two sloping

ceilings the values indicated in the table can be increased by 1% for every degree of

slope up to a

maximum of 25%.

If the space to be protected is under a

saw-tooth

type of roof,

SD-401 detectors should be installed

under each apex

. However, a roof

with a shallow saw-tooth form can be acceptable if the height difference between the

highest and lowest parts of the ceiling does not exceed 5% of the total ceiling height.

• Walls, partitions, obstacles, and trussed ceilings

The SD-401

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 applicable.

However, any

irregularity (including beams) exceeding 5% of the ceiling height is

considered to be a wall with the consequences stated above

• Ventilation and air circulation

The detectors must not be installed directly by a fresh air inlet

, e.g. air

conditioning vents. In the case of air being supplied through a perforated ceiling, each

detector must be placed so that no perforation hole occurs within 0.6m of the detector.

• Avoid installing the detector in the following locations:

•

Places with poor air circulation (niches, corners, apexes of A-shaped roofs).

•

Places exposed to dust, cigarette smoke or steam.

•

Places with over-intense air circulation (close to ventilators, heat sources or air

conditioning outlets).

•

Kitchens and other cooking places (because steam, smoke or oily fumes can

reduce detector sensitivity).

Caution: The most common reason for the detector to be accidentally

triggered is improper detector location.

See CEN/TS 54-14 standard for detailed installation guidelines.

Installation and settings

Take the following steps:

1. Open the detector by turning the rear cover and remove the battery.

Screw the rear cover

onto the desired location.

Set the required function

via DIP switches

– see picture below.

Insert the battery

and

close the detector

– put the detector’s body on the

fixed rear cover and turn it clockwise.

5. After installing a battery into the detector, allow approx. 15 seconds for stabilisation.

This period is indicated by the LED being continuously lit and is

followed by an

auto-test

. Successful performance of the auto-test is

confirmed acoustically

ON 3 OFF

OFF

Not used

4 OFF

Smoke (EN 14604) or

Heat (EN 54-5)

Memory ON

3 ON

OFF

Memory OFF

4 OFF

Smoke only (EN 14604)

(heat indifferent)

3 OFF

4 ON

Heat only (EN 54-5)

(smoke indifferent)

3 ON

4 ON

Smoke and Heat

(both simultaneously)

Closing the detector is disabled if no battery has been installed!

Remove the battery for 1 minute whenever you change the DIP switch setting!

Fire alarm

Optical smoke sensor

: Smoke entry into the detector is indicated as a pre-alarm state by

the LED flashing. If the smoke threshold density is exceeded, a siren sound is generated,

gradually increasing in volume.

Heat sensor:

– indication logic is equal to that of the smoke sensor.

Alarm memory:

The detector alarm memory can be enabled by pressing and holding the

test button during battery installation up to LED light up. Alarm LED indication continues even

if normal conditions are restored. The indication can be stopped by pressing the button.

Silencing the siren during an alarm:

During a fire alarm, the detector LED flashes 2

times briefly and the built-in siren sounds (at a higher intensity than during a test). Under

these conditions the siren can be silenced by pressing the test button. However, if normal

conditions are not restored within approx. 10 minutes (the smoke does not clear from the

room or the temperature does not drop), the siren re-activates.

Testing the detector

The functioning of the detector can be tested by pressing and holding the

test button for approx. 3 seconds. A properly functioning detector responds

with one beep and a short flash. A fault is indicated by 4 beeps and the LED

permanently flashing. In this case, remove the battery and re-insert it after 1

minute. If the fault indication occurs again (the LED starts permanently

flashing after about 1 minute), consult the installer company.

The detector should be tested this way at least once in every 30 days.

Warning: Never start a fire in a building to test the detector. Instead, use

smoke-simulating aerosols aerosol testing equipment for realistic testing.

Battery replacement

The detector monitors its battery voltage and if too low, a short acoustic warning

signal is emitted every 45 seconds. Battery replacement should not be delayed by

more than two weeks. As mentioned above, the detector is automatically tested

after each battery insertion.

Expired batteries should not be thrown into the

garbage, but disposed of according to local regulations.

Specification

Voltage 1x AA 1.5 V alkaline battery

Power consumption – stand by/alarm 40 µA/250 mA

Battery lifetime typically 2 years

Smoke detection optical, light dispersion

Smoke sensor sensitivity m = 0.11 - 0.13 dB/m to EN 14 604

Temperature detection class A2 to EN 54-5

Fire-alarm temperature +60 °C to + 70 °C

Acoustic power of the built-in siren 85 dB / 3m A

Operational temperature range -10°C to +70 °C

Recommended date for replacement 6 years

Dimensions diameter: 126 mm, height: 65 mm

Complies with EN 14 604, A2 EN 54-5, EN 50130-4, EN 55022,

Jablotron Ltd. hereby declares that the SD-401 is in compliance with

the essential requirements and other relevant provisions of Directive

1989/106/EC. The original of the conformity assessment can be found on the web site

www.jablotron.com

, Technical Support section.

Note: Dispose of batteries safely

depending on battery type and local

regulations. Although this product does not

contain any harmful materials we suggest

you return the product to the dealer or

directly to the manufacturer after use.

Jablotron SD-401 Anleitung

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