GST DC-9103 User manual
30309742 Issue 1.02
Features
With novel structure, attractive appearance, stable and
reliable performance, the detector is especially
applicable to places where fire occurs with sharp rise of
temperature. Used together with smoke detectors, it can
detect fire with more reliability to reduce losses and
chemical corrosion proof.
Description
DC-9103(IS) Intrinsically Safe Conventional Rate of Rise
and Fixed Temperature Heat Detector is applicable to
zone 1 and zone 2 of areas with explosion-proof
requirement in petroleum, chemical industries and ships.
Used together with I-9332 interface, it can be connected
with compatible FACP (fire alarm control panel) to
process fire alarm signals.
The detector has two classes: A1R and BS. They can be
set through an programmer on site.
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:
1.0mm2or above intrinsically safe cable is
recommended. Make sure distributed capacitance
among cables is not over 0.083F, and distributed
inductance not over 4.1mH.
Note: Please use cables of different colors to avoid
possible confusion.
Operation
Set Class of the Detector
Setting is done in safety area.
When the programmer is in standby state, entering
unlock password and pressing “Clear”, it will be
unlocked. Pressing Function followed by 4, there will be
a “-”at the last digit. Entering different number
corresponding to the classes (“2”for A1R, “1”for BS)
followed by “Program”, there will be a “P”shown on the
screen, indicating its class is programmed. Pressing
“Clear”can return, and entering locking password
followed by “Clear”will exit. If there will be an “E”
shown on the screen, indicate it is fail to program.
Press Clear and program again.
Table 1
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.
Fire simulation test: in normal state, heat the
temperature sensitive component using blower fan, and
the detector should send fire signal and light the alarm
LED. Press “Clear” on the fire alarm control panel when
the temperature is decrease, the system returns to
normal 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 Terminal “1” and “3”. “1”
should be positive and “3”should be negative.
Class
BS
A1R
1
2
DC-9103(IS) Intrinsically Safe
Conventional Rate of Rise and Fixed
Temperature Heat Detector
30309742 Issue 1.02
Application
System connection is shown in Fig. 4.
4
2
3
1
Zener Barrier
O-
O+
Z2
Z1
D2
D1
Circuit Board
I2
I1O1
O2
K2K1
4 3 2 1
5 6 7 8
I-
9332 Interface Intrinsically Safe
Detector
Detector
Manual Call Point
End of line resistor
4.7kΩ
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 Point 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.
Barrier Parameter: Uo＝28V，Io＝93mA，Co=0.083uF，
Lo=4mH，Po=651mW，Explosion-proof Mark: [ExibGb]
IIC，Explosion-proof Certificate No.:CE12.2146
Troubleshooting
No alarm: First check external wiring and screws when
there is a problem. If there is no problem, return it for
repair.
False alarm: Return it for repair.
Maintenance
The detector should be installed just before
commission and kept well before installation, with
corresponding measures taken for dust-proof,
damp-proof and corrosion-proof.
The dust-proof cover should not be removed until
the project is put into usage.
Fire test should be done at least once every 6
months.
Cautions
I-9332 interface box should be installed in safety
area; the wires of "Safety Area" should be
separated from those of "Hazardous Area", and be
kept a certain distance (At least 50mm).
The safety barrier should be well grounded. The
screws should not be loose. Ground resistance
should not be over 1Ω. The assigned parameters in
the intrinsically safe loop should not be over the
specified value, that is, the capacitance distributed
among cables should not be over 0.083μF, and the
inductance distributed should not be over 4.1mH.
During maintenance, products passing the
explosion-proof test should not be replaced and
parts and structure affecting explosion-proof
functions should not be modified.
Specification
Detector Class
P (A1R and BS can be set, factory
default is A1R)
Operating Voltage
16VDC～28VDC
Static Current
≤60μA (Note: In standby state,
the detector can work within
16VDC~28VDC)
Alarm Current
10mA≤I≤30mA (Warning: The
alarm current depends on the
current limit of the FACP. It’s not
allowed to power the detector
directly by 24VDC. Otherwise
the detector will be blown as a
result of without current limiting
resistor.）
Maximum Ripple
Voltage
4V (peak-to-peak)
Alarm Reset
Instantaneous Power-off (5s Min,
2.5VDC Max)
Power-up Time
≤10s
Alarm Indicator
Red. Flashes in polling.
Illuminates when fire is reported.
Explosion-proof
Mark
Ex ib IIC T6 Gb
Explosion-proof
Certificate No.
CE17.2124
Safety Barrier
Parameters
U0=28V I0=93mA C0=0.083μF
L0=4mH Pi=651mW
Device Max Input
Parameter
Ui=28V、Ii=93mA、Ci=0、Li=0、
Pi=651mW
Wiring
Polarity-sensitive, two-wire for
connecting with power supply
Operating
Environment
Temperature:
A1R: typical temperature is 25℃,
ranging -10℃～+50℃
BS : typical temperature is 40℃,
ranging -10℃～+65℃
Relative Humidity ≤95%,
non-condensing
Dimensions
Diameter: 100mm Height 53.3mm
(with base)
Material and
Color of the
Enclosure
ABS（surface resistance≤109Ω）
Weight
About 130g
Mounting Hole
Spacing
45mm～75mm
Accessories and Tools
Model
Name
Remark
I-9332
Interface
Order separately
DB-01(IS)
Base
Order separately
Limited Warranty
GST warrants that the product will be free of charge for
repairing or removing from defects in design, materials
and workmanship during the warranty period. This
warranty doesn’t cover any product that is found to have
been improperly installed or used in any way not in
accordance with the instructions supplied with the
product. Anybody, including the agents, distributors or
employees, is not in the position to amend the contents
of this warranty. Please contact your local distributor for
products not covered by this warranty.
This Data Sheet is subject to change without notice. Please contact GST for more information or questions.
Gulf Security Technology Co., Ltd.
No. 80, Changjiang East Road, QETDZ, Qinhuangdao, Hebei, P. R. China 066004
Tel: +86 (0) 335 8502434 Fax: +86 (0) 335 8502532
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