IK
‐
E306
‐
001GB
3
1
PURPOSE
The
DUR
‐
4046
microprocessor
based
interactive
addressable
optical
smoke
detector
is
designed
for
detection
of
visible
smoke
that
is
concurrent
with
most
fire
combustion.
It
enables
a
fire
detection
at
a
start
of
its
flameless
stage
when
material
starts
to
smoulder,
and
therefore
generally,
a
long
time
prior
to
appearance
of
an
open
flame
and
a
noticeable
rise
in
temperature.
The
detector
is
characterised
by
a
high
resistance
against
wind,
pressure
change
and
steam
condensation.
It
is
very
sensitive
to
visible
smoke.
The
DUR
‐
4046
addressable
optical
smoke
detectors
operate
only
in
the
POLON
4000
fire
detecting
and
alarm
system
control
panel
addressable
loop
‐
shaped
lines.
The
detectors
are
equipped
in
internal
short
circuit
isolators.
2
TECHNICAL
SPECIFICATIONS
Operating
voltage
16.5
V
÷
24.6
V
Maximum
quiescent
current
draw
≤
150
µA
Maximum
installation
height
*)
12
m
Maximum
supervised
area
*)
60
÷
80
m
2
Operating
temperature
from
‐
25
°C
to
+55
°C
Allowable
relative
humidity
up
to
95
%
at
40
°C
Dimensions
(without
base)
Ø
115
mm
x
43
mm
Number
of
sensitivity
levels
3
Mass
(without
base)
0.2
kg
Standard
colour
white
Address
coding
method
programmable
at
the
control
panel
*)
see
design
guidelines
3
SAFETY
CONDITIONS
3.1
Repairs
and
maintenance
Any
maintenance
works
or
periodic
inspections
shall
be
executed
by
skilled
personnel
employed
by
companies
authorised
and
trained
by
POLON
‐
ALFA.
Any
repairs
must
be
carried
out
by
the
manufacturer.
POLON
‐
ALFA
bears
no
responsibility
for
the
operation
of
any
apparatus
being
repaired
by
unauthorised
personnel.
3.2
Works
at
height
Any
detector
installation
works
carried
out
at
height
must
be
executed
with
particular
care
utilising
tools
and
machinery
in
good
working
condition.
Special
attention
shall
be
given
to
stability
of
ladders,
elevators,
lifts,
etc.
