DEKON D-BM100 OPTICAL BEAM
SMOKE DETECTOR
Doc:UM-D-BM100-0717-EN
Page 4/16
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
–
25
o
C to +55
o
C and relative humidity up to 95% at 40
o
C.
2
TECHNICAL SPECIFICATIONS
Operating voltage in a detection line
9.5
V ÷ 2
8.0 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.
