Standard EN54-7 Ed2000
Security addressing
CE certified according to CPD
The Optical smoke detector analyzes an atmosphere by reflection of a light on the particles of smoke
according to TYNDALL effect. It detects especially the cold and visible smoke particles (0,3µm to 2µm)
produced in the early stages of a fire. The threshold of response of alarm is regulated to obtain the value
m=0,2db/m±0,03 according to standard EN54-7.
OA05 includes a developed technology (microprocessors, smd components) which means precision and
high reliability. A specific head detection fixed by a single ceiling base.
OA05 is dedicated to interactive fire detection panels.
The smoke detector OA05 is designed to be installed under flat ceiling with heights ranging between 2,5 m
and 12 m and this, in healthy and more or less ventilated buildings.
The maximum supervised surface is 80m² by detector; however it is preferable to refer to the local rules of
installation recommended in particular when the characteristics of the installation differ from those stated
above. Eight levels of sensitivity are available while programming the fire detection panel (from 0,1dB/m to
0,35 dB/m).
Function
Main characteristics
Photoelectric scattering (Tyndall effect)
1 remote alarm indicator output
Lockable
Standard EN54-7
Cable section max 2,5mm²
8 levels sensitivity setting (0,1 dB/m to 0,35
dB/m)
Base isolator (option)
Base relay (option)
Constant sensitivity thanks to auto correction
Specifications
Power supply specification
Main supply voltage: 12Vdc to 28 Vdc
Nominal main supply voltage: 24 Vdc
Quiescent current (24 Vdc): 140µA without base isolator / 240µA with base isolator
Alarm current (24 Vdc): 5mA ± 1mA
Fault current (24 Vdc): 140µA
Remote alarm indicator output: Individual command: 5mA ± 1mA
Mechanical characteristics
Unit weight: 130g
Unit dimensions (in mm): H:55 D:104
IP index: IP 32
Unit row material: ABS
Unit colour: White
Mounting mode: Base
Fixing – distance between centres: 50mm to 60mm
under ceiling: 2 screws Ø 4
Climatic characteristics
Operating temperature: -30°C to +60°C
Storage temperature: +10°C to +50°C
Operating relative humidity: ≤ 93%
Storage relative humidity: ≤ 85%
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