GST C-9404(Ex) User manual

30302556 Issue 2.04
Features
High bright red LEDs are used as light source.
High sound level.
Circuitry and base are twisted together.
Standard: EN 54-3.
Description
C-9404(Ex) Explosion Proof Conventional
Sounder and C-9403(Ex) Explosion Proof
Conventional Sounder Strobe (hereinafter called the
sounder/sounder strobe) is a kind of audible/audible
and visual alarm device used to warn people in field
when fire occurs. It’s applicable to zone 1 and zone 2
of areas with explosion-proof requirement in
petroleum and chemical industries. It can match with
I-9333 Interface.
Both shallow base with 25.5mm high and deep base
with 40mm high are available, it employs deep base
if there is no special statement in this manual.
Connection & Wiring
Terminals on the base are shown in Fig. 2.
G
1
K
1
D
D
2
1
2
Z
2
K
S
Z
97.5mm 80mm
55mm
Arch knock off Hole
5mm
Fig. 1 Fig. 2
D1+(9), D2- (7): Connected with I-9333
Interface, polarized. D1 is connected with (3) of the
safety barrier and D2 to (4).
Recommended Wiring
Intrinsically safe cable with cross section not less
than 1.5mm2, subject to local codes.。
Installation
When the sounder/sounder strobe is surface
mounted, it should be placed 0.2m from the ceiling
for normal space height. When conduit is embedded,
the base can be mounted on the electrical box.
When conduit is surface mounted, the deep base
should be adopted. Knock the knock-off hole, then
connect the conduit with it. The mounting hole
spacing and mounting direction are shown in Fig. 2.
Mounting method is shown in Fig. 3a and Fig. 4.
When the shallow base is required, the
sounder/sounder strobe only adopts conduit
embedded. Its mounting method is shown in Fig. 3b.
Conduit
Knock-off Hole
Electrical Box
sounder/Sounder Strobe
Fig. 3a
Conduit
Electrical Box
sounder/Sounder Strobe
Fig. 3b (shallow base)
Conduit
sounder/Sounder Strobe
Fig. 4
The base and the sounder/sounder strobe are
twisted together. When mounting, remove the
sounder strobe, thread cables through the cable
entry in the base and connect with corresponding
terminals, then twist the sounder/sounder strobe
onto the base.
C-9404(Ex)
Explosion Proof Conventional Sounder
C-9403(Ex)
Explosion Proof Conventional Sounder Strobe

30302556 Issue 2.04
If the sounder/sounder strobe is required
anti-removal, knock down the arch knock-off hole as
shown in Fig. 1 and fix it with ST2.9×6.5 tapping
screws (in this case, it must be removed by a special
tool).
Application
the sounder/sounder strobe can match I-9333
Interface to form an intrinsically safe system. The
system wiring is shown in Fig. 5.
Non-intrinsincally Safe Loop Intrinsincally Safe Loop
D1 D2 Z1 Z2
24VDC Fire Alarm Control Panel
L-
L+ 2(-)
1(+) NF928 Zener
Safety Barrier
Safety Area
4(-)
3(+)
Hazardous Area
1
Z
2
Z
K
2
S
D
2
G
1
K
D
1
I-9333 Interface
I-9333 Circuit
Board
Fig. 5
Cautions
1．I-9333 Interface 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).
2．The safety barrier should be well grounded.
The screws should not be loose. Ground
resistance should not be over 1Ω. The
parameters assigned in the intrinsically safe
loop should not be over the specified value, that
is, the capacity assigned among cables should
not be over 0.02μF, the inductance assigned
not over 2mH.
3．During maintenance, products passing the
explosion-proof test should not be replaced and
parts and structure affecting explosion-proof
functions should not be modified.
Sound Level Data (Complies to EN54-3)
Fixed tone, Maximum Volume
Angle
Horizontal
Vertical
18V
28V
18V
28V
15°
74.47
78.16
71.95
75.55
45°
81.85
86.44
82.03
85.36
75°
88.06
92.47
87.88
91.66
105°
88.15
91.93
89.14
92.92
135°
80.50
85.54
82.48
87.07
165°
62.32
66.37
73.93
78.07
Specification
Power Loop
voltage when
activating
24VDC（16VDC～28VDC）
Power Loop
voltage in standby
state
7VDC（5VDC～8VDC）
standby current
≤5mA
active
current
≤50mA
Wiring
Polarized two-wire with I-9333
Interface
Sound Level
See the above sound level data
table
Flashing
Frequency
1.4×(1±20％)Hz（C-9403(Ex)）
Tone Modification
Period
0.7s±20％
Explosion-proof
marking
ExibⅡCT6
Security Barrier
Parameters
（NF928）
U0＝28V，I0＝93mA
Ingress Protection
Rating
IP33
Operating
Temperature
-10℃～+50℃
Relative Humidity
≤95%, non condensing
Material and Color
of Enclosure
ABS，red（PANTONE 1795C）
Dimension
(L×W×H)
ф110mm×97.5mm (deep base)
ф110mm×83mm(shallow base)
Mounting Hole
Spacing
55mm～80mm
Weight
C-9404(Ex)：
About 340g(deep base)About
312.2g(shallow base)
C-9403(Ex)：
About 350g(deep base)About
322.2g(shallow base)
Limited Warranty
GST warrants that the product will be free from
defects in design, materials and workmanship during
the warranty period. This warranty shall not apply to
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: [phone] Fax: [phone]
serv[email protected].com www.gst.com.cn