30309741
Issue 1.01
Features
The detector is designed with the latest scattering
technology and excellent photoelectric components with
the reliability, stability and reproducibility of the sensor
greatly improved. With special optical sensing chamber,
it has good ability of insect-proof, dust-proof, and
interference-proof of external rays. With novel structure
and attractive appearance, the detector has stable and
reliable performance and high damp-proof ability and
anti-corrosion ability.
Description
DC-9102(IS) Intrinsically Safe Conventional Photoelectric
Smoke Detector is a non-addressable detector, applicable
to zone 1 and zone 2 of areas with explosion-proof
requirement in petroleum, chemical industries and vessels.
It can be connected with fire alarm control panel (FACP)
through I-9332 Interface.
Connection & Wiring
Warning: Installation must strictly comply with the
relative explosion-proof code.
Mounting of the detector is shown in Fig. 1.
Detector
Base
Conduit
Back Box
Fig. 1
Bottom and
DB-01(IS)
base are shown in Fig. 2 and Fig.3
A
C
B
Fig. 2 Fig. 3
The explosion-proof base of the detector is shown in Fig.
3. First secure the detector base with two tapping screws,
and then connects the DC power supply cable of the
detector and the positive end of power output cable to
Terminal No. 1, 3 and 2 of the base. Please note to
connect Terminal No. 1 to the positive of power supply
and Terminal No. 3 to negative. Terminal No. 2 connects
with positive power output cable; Terminal No. 4
doesn’t
connect to any cable.
There are two marks B and C on the orientation base,
and mark A on the detector bottom. Aligning mark A to B
of the base, and rotating the detector clockwise to mark
C, the detector will be installed onto the base. Refer to
Fig. 2 and Fig. 3.
Wiring:
1.0mm
2
or
above
intrinsically
safe
cable
is
recommended. Make sure distributed capacitance
among cables is not over 0.083
F, and distributed
inductance not over 4.1mH.
Note: Please use cables of different colors to avoid
possible confusion.
Operation
(1) After installation and connection of the system, turn
on the FACP and enter commissioning state.
Check if all interfaces are registered. If not, take
down the number of the unregistered ones and
check the problem.
(2) After all interfaces and detectors are registered,
making the system into normal standby state, there
should be no fault or alarm from detectors.
(3) After system commissioning, please do fire test.
Smoke test: Blowing smoke into the sensing chamber
using a cigarette or smoke gun, the detector should give
fire alarm, and light the fire LED. After the smoke is gone,
pressing “Reset” key on the FACP to clear the fire alarm
and reset the system back to normal standby state.
Note: To ensure every detector works normally,
please make sure the base connection is correct.
The method is as follows: power up the detector, and
measure the voltage between terminals. There
should be 24VDC between T
erminal “1” and “3”. “1”
should be positive and
“3” should be negative.
Application
System connection is shown in Fig. 4.
4
2
3
1
Zener
B
a
rr
ie
r
O-
O+
Z2
Z1
D2
D1
Circuit
B
o
ar
d
I2
I1
O1
O2
K2
K1
4 3 2 1
5 6 7 8
I- 9332 Interface
Intrinsically Safe
Detector
Detector
Manual Call Point
End
of
line
re
si
sto
r
4.
7k
Ω
Hazardous Area
Safety Area
Intrinsically Safe
Intrinsically Safe
Detector
Intrinsically Safe
Fig. 4
When the detector is to be connected with I-9332 Interface
or Explosion-proof Manual Call Poin
t in series, a 4.7kΩ
end-of-line resistor connected to the end of loop.
There are three conductive elements on the base with
terminals. The bases are connected in series with an
end-of-line resistor connected at the end. Please note
polarity when connecting the system with the method
shown in the above figure.
The interface is integrated with a safety barrier, which
shall be installed in safe area. The total number of
explosion-proof devices connected in the system shall
not be over 10.
DC-9102(IS)
Intrinsically Safe Conventional
Photoelectric
Smoke
Detector
