DEKON D-BM100 Manual

Doc No: UM-D-BM100-0717-EN
DEKON
D-BM100 OPTICAL BEAM
SMOKE DETECTOR
Installation and maintenance manual
UM-D-BM100-0717-EN
Revision 0

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The D-BM100 beam smoke detector, covered by this manual, complies with the requirements of the
following European Union directives:
CPR CPR/305/2011 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 March 2011 laying down
harmonised conditions for the marketing of construction products and repealing Council Directive
89/106/EEC
EMC 2004/108/WE –on electromagnetic compatibility
The D-BM100 detector has been approved with the EC Certificate of Conformity No. 1438/CPD/0219, issued
by the Scientific and Research Centre for Fire Protection (CNBOP) Józefów, Poland, an EU notified authority
No. 1438, confirming its compliance with the requirements of the PN-EN 54-12:2005 standard.
Read the manual carefully before assembling and commissioning of the detector. Any nonconformity with
the instructions contained in the manual may be harmful or may cause violation of the law in force
The manufacturer,shall not bear any responsibility for any harms resulted from the unit’s application
discordantly to the requirements of this instruction.
A waste product, unsuitable for further use, shall be passed to
a waste electric and electronic equipment collection point.
NOTE: The manufacturer reserves the right to change product specifications at any time without prior notice.

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SMOKE DETECTOR
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11
1438
1438/CPD/0219
OPTICAL BEAM SMOKE DETECTOR
DEKON D-BM100
EN 54-12
Declaration of Performance No 1/E343-2/2013/GB
No.
The essential characteri stics of the product
Harmonize d techn i cal
pecif ication E N 54 -12:2002,cl aus e
Perf or -
mance
1
Normal conditions for start/sensiti vi ty
On-site adjustment of sensitivity
4. 5
Passed
Com pensation range
4. 8
Passed
Faul t signal ling
4. 10
Passed
Reproducibility
5. 2
Passed
Direction dependence
5. 4
Passed
Sl ow changes in light attenuati on
5. 7
Passed
Optical path leng th dependence
5. 8
Passed
Fi re sensitivity
5. 9
Passed
Light inter ference
5. 10
Passed
2
Response delay (r esponse tim e)
Repeatability
5. 3
Passed
Rapid c hanges in attenuation
5. 6
Passed
3
Operational rel iability
Connecti on of ancillary devices
4. 3
Passed
Manufacturer’s adjustments
4. 4
Passed
Protection against ing ress of foreign bodi es
4. 6
Passed
Monitoring of detachable detector s and c onnec tions
4. 7
Passed
Addi t io nal re q u ire me nts for soft ware cont r o lle d dete c t ors
4. 9
Passed
Electr omagneti c compati bility
5. 16
Passed
Immuni ty to mechanical im pacts
5. 18
Passed
4
Voltage toler ance
Variation of supply parameter s
5. 5
Passed
5
Effic iency ( performance) under fire conditions
Al arm indicator
4. 2
Passed
6
Durabili ty of operational reliability and response delay, temperature resistance
Dry heat endur ance
5. 11
Passed
Cold resistance
5. 12
Passed
7
Durabili ty of operati onal r el iability: Vibration resistance
Immuni ty to sinusoidal vibrations
5. 15
Passed
8
Durabili ty of operational rel iability: Humi dity resistance
Damp heat, steady state endur ance
5. 13
Passed
Abi lity to withstand steady state damp heat
5. 14
Passed
9
Durabili ty of operati onal r el iability: Corrosion resistance
Sulphur dioxide (SO2) corrosion
5. 17
Passed
Intended use: Fire protection - beam smoke detector operates using an optical light beam to operate with fire alarm systems used in
buildings.

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SMOKE DETECTOR
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1 PURPOSE
The D-BM100 Beam Smoke Detector is designed for smoke detection at the early stage of fire. It is particularly
suitable for protection of premises where smoke appearance is expected in the first phase of the fire and
where installation of a large number of point smoke detectors would be necessary due to a large area.
Compared to point smoke detectors, beam detectors are sensitive to a medium smoke density value on a
long path of the infrared radiation beam. Therefore they are especially suitable for application under high
ceilings/roofs or in those places, where smoke can be diffused over a large area before detection.
Examples of applications, where this type of detectors can be particularly useful, include: churches,
cathedrals, monumental buildings with valuable historic ceilings, theatres, sports halls, industrial shops, very
high rooms, in which point detectors would not be effective, and rooms with a differentiated ceiling or roof
design.
A distinctive feature of the D-BM100 detector is its arrangement of transmitter and receiver in one housing
and interaction with a prism reflector or a reflector panel placed on the opposite wall. A single casing
embraces a laser pointer that enables optical path axis alignment between the detector and the reflector/set
of reflectors.
The D-BM100 beam smoke detector is intended to interoperate with any fire detection and alarm control
panel that ensures power supply in the range between 9.5 V and 28 V and current > 100 mA. The alarm signal
is the relay non-potential contact switch over. The detector operates in closed premises at ambient
temperatures ranging from –25oC to +55oC and relative humidity up to 95% at 40oC.
2 TECHNICAL SPECIFICATIONS
Operating voltage in a detection line 9.5 V ÷ 28.0 V
Quiescent current from 9.5 to 28 V 8 ÷ 30 mA
Alarm current from 9.5 to 28 V 20 ÷ 100 mA
PU and PA relay contact load max. 1 A/30 V
Current at light beam interruption < 0.3 mA
Current at service signal –optics contamination < 0.3 mA
Sensitivity thresholds (to be chosen) 18% (0,86 dB); 30% (1,55dB); 50% (3dB)*
Operating distance
-with E39-R8 prismatic reflector (Fig. 6) from 5 m to 50 m
-with 4xE39-R8 set of reflectors (Fig. 7) from 50 m to 100 m
Detector angular tolerance ± 0.5°
Reflector angular tolerance ± 5°
Power supply of laser viewfinder (during alignment) 6F22 (9 V) battery
Operating temperature range -25°C ÷ +55°C
Admissible ambient relative humidity up to 95% at + 40°C
Dimensions 129 x 80 x 84 mm
Mass (together with adjustment basis) 0.35 kg
Casing colour white (other on request)
* 50% sensitivity threshold is not LPCB approved.

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SMOKE DETECTOR
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Fig. 1 D-BM100 detector with prism reflector
3 PRINCIPLE OF OPERATION
The D-BM100 detector consists of an infrared (IR) light transmitter and a receiver located in a single housing
and an interoperating separate D-BM50-1 prism reflector or D-BM100-4 set of reflectors. The detector
operation principle is based on continuous analysis of optical air transparency in the space between the
detector and the reflector (set of reflectors).
The detector can operate in one of four modes: supervision, alarm, fault –light beam interruption, and fault
–caused by contamination. If a certain, defined amount of aerosol (smoke) is found in the air, resulting in
reduction of optical transparency below a given (adjustable) threshold, then the detector enters the alarm
mode. Complete break of the beam (or its reflection due to an object occurrence in its optical path) is signaled
as a fault, because even the largest smoke concentration in the air does not cause a total break of the
detector optical path. When the air is clear, the detector is in the supervision mode.
Long lasting detector operation, especially in high dust level premises, may lead to contamination of optical
parts of the detector and the reflector/reflector panel. In order to maintain constant sensitivity and fire
detection ability during a long time, the detector is equipped with automatic compensation mechanism to
monitor its contamination and environment impact conditions. The circuits guarantee the same sensitivity
level in the whole compensation range. At a certain contamination level, the detector signals the fault mode
denoting a necessity to undertake servicing and cleaning works. However, even in this mode, the detector is
still able to detect smoke and trigger an alarm mode. A fault caused by high contamination requires cleaning
works of the reflector/set of reflectors and the detector front surface. After cleaning, the detector adjusts to
new conditions and automatically changes its mode from fault to supervision.
The D-BM100 detector’s analysis functions are executed by a microprocessor. After the initial detector
optical path adjustment with built-in laser pointer is completed, the START button should be pressed. By
pressing this button, precise adjustment is being performed. At the same time microprocessor is analyzing
the ambient temperature and the settled sensitivity threshold. A self-adjustment program is switched on
after entering these data into the detector memory. The self-adjustment process is completed after achieving
a reference value with 5% tolerance. Finally, the decision criteria for fire alarm are drawn up for various fire
phenomena runs, for instance for fast or slow fire development. The data are kept in the detector non-
volatile memory and periodically checked. Any measured value change (against the assumed decision
thresholds) caused by a smoke, after triple verification, is treated by the microprocessor as a fire.

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SMOKE DETECTOR
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4 DESIGN
The D-BM100 detector design is shown on Fig. 1 and Fig. 3. The detector housing, made of plastic, contains
electronic circuits and optical elements of the transmitter and receiver as well as a laser diode that facilitates
the detector easy optical alignment. The lenses for infrared beam focusing are covered with a detachable
filter. There is a connecting block mounted on the detector back side, to connect power supply wires and
terminal blocks for PU and PA relay contacts. The detector is fastened to the wall with a metal adjustment
basis. START button that initiates the detector adjustment process as well as an optical fiber for illuminating
diodes are located on the bottom of the detector. During the auto alignment process the built-in led indicator
blinks every 2 s with either yellow or green light.
The illuminating diode colour signals mean:
- green –detector self-adjustment to the distance between detector and reflector/set of reflectors is in
progress and the signal level is too high;
- yellow –detector self-adjustment to the distance between detector and reflector/set of reflectors is in
progress and the signal level is too low;
The alignment process lasts ca 30s. After successful alignment the indicator of the detector blinks with a
green light once every 10 s informing about the proper operation of the detector. In case of any fault including
failure of the alignment process the same indicator blinks with a yellow light once every 2s.
The START button enables initiation of the detector adjustment process (self-adjustment) and the reset of
detector’s parameters after cleaning works of optical parts during detector’s operation.
The beam smoke detector indicates the fire alarm with the indicator lighting with continuous red light.
5 INSTALLATION
The D-BM100 detector interoperates with a set of reflectors D-BM100-4 (operating distance is from 50 m to
100 m), or with the D-BM50-1 prism reflector (operating distance is from 5 m to 50 m). Set of reflectors,
single reflector, test foil and an adjustment mirror are not included in the detector standard pack and should
be ordered separately.
In case when the detector is hardly visible or is installed in a place with difficult access, it is possible to connect
the additional operation indicator WZ-31, placed in a convenient and visible location.
Before installation, it is necessary to declare an alarm mode and a sensitivity threshold. This can be done
using appropriate jumpers located on the back side of the detector casing, as shown on Fig. 6. The distance
between the detector and the reflector/set of reflectors shall be one of the key criteria taken into
consideration when defining the sensitivity:
-for a distance from 5 m to 20 m –18% sensitivity is recommended;
-for a distance from 20 m to 100 m –30% sensitivity is recommended;
-for a distance from 50 m to 100 m –30% or 50%* sensitivity is recommended;
* 50% sensitivity threshold is not LPCB approved.
In case of the detector’s hard operation conditions it is possible to set sensitivity level experimentally,
adopting it to the particular environment. The D-BM100 detector and the reflector/set of reflectors are
mounted on opposite walls, pillars or other construction elements of the premises. Walls or pillars must be
stable and vibration-free. The detector should be placed on the adjustment basis (Fig. 3) after preliminary
connection of the wires to the connecting blocks in accordance with Fig. 4. The detector should be fixed to
the basis with three screws that are accessible from the front side (after removing the cover). Then a 6F22
battery should be plugged to the laser pointer contacts.
Before alignment, the mirror should be placed on the set of reflectors and pressed down, as it is shown on
Fig. 9.The detector laser beam should be aimed at the center of the reflector or the mirror using three
positioning screws. The adjustment screws help in precise alignment so that the laser beam returns to the
detector’s front plate after being reflected from the reflector. The mirror should be removed after proper

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SMOKE DETECTOR
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adjustment of the optical path between the detector and the reflector. The prism reflector’s position cannot
be adjusted and it is recommended to fix it to a flat surface with screws or glue.
The detector is properly aligned with the reflector/set of reflectors when the reflected laser light illuminates
back the detector. In such case the external battery should be disconnected, the detector cover should be
mounted and the START button should be pressed. As a result, the diode shall light in a pulse manner with
yellow or green colour. After ca. 40 sec. the green diode should start blinking once every 10s, what confirms
the proper adjustment of the infrared beam to the distance between the detector and the reflector/set of
reflectors. During this adjustment process, the detector signals a fault mode on the control panel. After the
adjustment is done, the detector enters into the supervision mode.
Note:
The detectors should not be exposed to direct sunlight operation.
The detector/reflector alignment with a help of a laser beam should be carried out in a dark room wherever
possible.
Fig. 2 D-BM100 detector during optical path alignment
6 OPERATING CONDITIONS AND MAINTENANCE
The D-BM100 smoke detector long-lasting operation, especially in dusty premises, may result in
contamination (dust, dirt accumulation) of the optical part of the detector and of the reflector/set of
reflectors. After exceeding a determined contamination compensation range, the detector transmits a fault
signal to the control indicating the necessity to call a maintenance technician. The detector is still able to
detect fire factors (smoke) and enter into the alarm mode. The fault caused by contamination entails the
need of cleaning the reflector/set of reflectors and the front of the detector. After cleaning the above
mentioned elements, the START button should be pressed in order to adjust the detector to new conditions.
After the adjustment is completed, the detector automatically alters its mode from a fault into a supervision
one.
It is possible to check proper operation of the D-BM100 detectors installed in fire detection systems during
their maintenance inspection by concealing partly the detector’s optical path. It can be carried out using a
special plastic foil with overprints appropriate to the detector two sensitivity levels –18%; 30%
(Fig. 10). The foil should be placed at the front of detector and it should trigger an alarm mode. During
renovation or painting works carried out in the premises where detectors are installed, the detector and
reflector/set of reflectors should be removed or protected with cover. Detectors damaged as a result of
painting or renovation works are not subject to warranty repairs.

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SMOKE DETECTOR
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7 SAFETY CONDITIONS
7.1 Repairs and maintenance
Any maintenance works or periodic inspection shall be carried out by skilled personnel employed by
companies being authorized or trained by manufacturer. Any repairs must be carried out by the
manufacturer. Manufacturer do not carry responsibility for the operation of any device being serviced and
repaired by unauthorized personnel.
7.2 Works at height
Any detector installation works carried out at height must be carried out with particular care and using
tools and machinery in good working condition. Special attention shall be paid to the stability of ladders,
platforms, etc. Any electric tool shall be used strictly obeying the safety rules specified in the
manufacturer’s instruction manuals.
7.3 Anti-dusting eye protection
It is obligatory to use protective anti-dusting glasses and masks during detector installation works that
produce high amount of dust, such as hole drilling for detector base mounting on ceilings/walls.
7.4 Eye protection against laser beam operating equipment
During the alignment of the detector optical path with the reflector/set of reflectors using a laser viewfinder,
special eye protection against direct laser exposure (3R class laser equipment) must be provided.
8 STORAGE AND TRANSPORT
The detectors should be stored in closed premises at ambient temperature ranging from 0oC to +40oC and
relative humidity up to 80% at +35oC, free from volatile sulphur compounds as well as acid and alkaline
vapors. The detectors should not be exposed to direct sun; heating devices should not directly influence the
detectors or their packing.
The detectors transportation should be carried out in transport packing using any transport means and
obeying the transport recommendations given on the packages and securing protection against possibility of
mechanical damage and impact of temperatures lower than –40oC and higher than +70oC and relative
humidity higher than 95%.

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SMOKE DETECTOR
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9 DESIGN RECOMMENDATIONS
The D-BM100 beam smoke detector operates properly (like all other smoke detectors), in case it is installed
at the height not exceeding 12 m. When it is mounted higher (up to 20 m), additional detectors shall be
provided at an intermediate level.
Maximum width (2D) of an area protected by one detector depends on the room height, according to the
following table:
Height
H
Operation radius
D
Distance from ceiling
At gradient up to 20°
At gradient over 20°
Up to 6 m
6 m
0.2 m to 0.5 m
0.3 m to 0.5 m
From 6 to 12 m
6.5 m
0.3 m to 0.7 m
0.4 m to 1.0 m
Over 12 m
7 m
0.6 m to 0.9 m
0.8 m to 1.2 m
In case the distance between detector and set of reflectors is 100 m, the maximum area protected by one
detector for the 10 m ceiling height is ca. 1300 m2, (2D x 100 m) so the detector can replace a dozen of point
smoke detectors.
The distance between the detector IR beam and a side wall of room should not exceed D value and between
two adjacent detector beams –2D. The distance from the IR beam to any obstacle (e.g. a wall, perpendicular
to a side wall) shall not be shorter than 0.5 m.
The beam detector should constantly “see” the co-operating reflector. It is required to install it in such a way
that its optical path is never –even temporarily –concealed by a moving object or equipment, such as cranes,
hoists, etc. In the premises, where people are present, the minimum installation height is 2.7 m (outstretched
upwards arms will not disturb the optical path). This limitation is not valid in case of low, long or narrow
spaces where people are not present, e.g. cable channels, spaces above hanging ceilings, etc.
NOTE: The data listed in the table, especially the D operation radius value, come out from the calculations of
the proportion of the beam detector arrangement versus spot detectors installed in a fire test chamber and
comply with the data pursuant to VdS 2095:2005.
It differs from the data stated in the PKN-CEN/TS 54-14 technical specification in which the D radius is the
same for all heights and is equal to 7.5 m.

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SMOKE DETECTOR
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Fig. 3 D-BM100 design and overall dimensions

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SMOKE DETECTOR
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Fig. 4 D-BM100 detector installation wires connection
Fig. 5 D-BM100 detector internal connections and output terminals diagram
Power supply
Connection of detection line to D-BM100
Detection line of FAP

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SMOKE DETECTOR
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Fig. 6 Jumpers for detector operation declaration
Declared sensitivity levels:
-jumper in position 50% –low sensitivity
-jumper in position 30% –medium sensitivity
-jumper in position 18% –high sensitivity
* 50% sensitivity threshold is not LPCB approved.
Alarm mode declaration
Jumper in W1 position –sustain of alarm condition –after detector’s activation, the alarm relay changes its
position and stay unchanged as long as the power supply is on. Short brake of power supply of the detector
will reset the detector and make the relay returned to the standard position.
Jumper in W2 position –lack of sustain of alarm condition –after detector’s activation, the alarm relay
changes its position and stay unchanged as long as detector detects fire factor. After fire factor disappeared,
the alarm relay returns to the standard position.

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SMOKE DETECTOR
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Fig. 7 D-BM100 detectors connection into detection line

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SMOKE DETECTOR
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Fig. 8 D-BM50-1 prism reflector
Fig. 9 D-BM100-4 set of reflectors

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SMOKE DETECTOR
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Fig. 10 D-BM100 detector testing foil with overprints

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SMOKE DETECTOR
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Fig. 11 Assembly set of reflectors and the service mirror