Polon-Alfa DOP-3000 Manual

Purpose
The DOP-3000 beam smoke detector is designed for smoke de-
tection at the start of a fire. It is especially suitable for protec-
tion of indoor spaces in which the appearance of smoke is pre-
sent during ignition of a fire, and where, due to a large space
area, installation of a greater number of point smoke detectors
would be necessary.
These detectors can operate exclusively in POLON-ALFA
manufactured fire alarm system detection lines: directly in the
addressable loops of the POLON 3000 control panels as well
as the conventional lines of the CSP-35, CSP-36, IGNIS 1000,
IGNIS 2000 systems, TELSAP-2100 addressable systems (via
the ADC-1 adapter) and CSP-38 (via ADC-38 adapter).
Principles of operation
The DOP-3000 detector consists of an infrared (IR) light
transmitt er and a receiver located in a single housing and an
interoperating E39-R8 prismatic reflector or 4xE39-R8
reflector panel. Operation of the beam smoke detector is
based on an analysis of air optical transparency in the space
between the detector and the prism reflector or the prism
reflector panel. If certain defined content of aerosol (smoke) is
found in the air reducing optical transparency, then the
detector, according to a preset sensitivity threshold will
actuate an alarm mode. Complete interruption of the radiation
beam is signalised as a fault mode because even the largest
smoke concentration in the air does not cause complete
interruption of the detector optical beam path. If the air is
clear, the detector is in a quiescent mode. The DOP-3000 beam
smoke detector is equipped with a builtin automatic
compensation systems for monitoring of dirt collection on its
optical system and compensation for environ impact
conditions ensuring that the detector maintains constant
sensitivity and fire detection ability for a long time. At a certain
level of dirt condensation, the detector signals a fault mode
denoting the necessity to undertake servicing and cleaning
works.
Communication between the POLON 3000 system control
panel and the detector is executed using a two-wire
addressable detection line. The detector is equipped with an
internal short circuit isolator. In order to achieve the detector
proper functioning, it is necessary to align its optical path. In
the case of an addressable detector it is carried out by
initiation of such a process from the POLON 3000 system
control panel level, or by pressing the START push button
DOP-3000
Beam smoke detector
(located on the detector) in case the detector operates in a
conventional operation mode.
Installation
The DOP-3000 beam smoke detector and the prismatic
reflector or reflector panel are installed on opposite walls of a
room. Special adjusting screws are provided at the detector
and the reflector panel for precise alignment of the detector
and the reflector/s in the optical path. A special laser target
viewfinder is actuated at the moment when the optical beam
path is aligned. The prismatic reflector and the reflector panel
are not included in the order product package and they should
be ordered separately.
Technical specifications
Addressable detector operating voltage
Detector power consumption from addressable line < 300 µA
Conventional detector operating voltage
Quiescent current in conventional line (at choice) 2.2 or 5 mA
Alarm current at 20 V
Current at radiation beam interruption
Servicing signal current
Operating distance range for E93-R8 reflector 5 to 50 m
Operating distance range for 4xE39-R8 reflector panel
Sensitivity thresholds (optional)
Number of detectors in an addressable line
Number of detectors in a conventional line
Power supply of laser target viewfinder (during alignment)
Operating temperature range
Relative humidity up to 95 % at 40 oC
Dimensions
IP rate
Frame colour
Mass
KK-E399/06.2022-GB
16.5 ÷ 24.6 V
10.5 ÷ 24 V
20 mA
< 0.3 mA
< 0.3 mA
50 to 100 m
18 %, 30 %, 50 %
64
1
9 V (6F22) battery
-25 o C to +55 o C
128 x 79 x 84 mm
IP 40
Black
0.35 kg