GST DC-9104Exd User manual

30307309 Issue 1.01
Features
Intelligent signal-processing and communication
with integrated microprocessor.
Intelligent algorithm ensures quick response with
reduced false alarm.
Three sensitivity levels.
High sensitivity, reliable performance.
Dust-proof, damp-proof and corrosion-proof.
Description
DC-9104Exd is a light-sensitive detector that detects
fire by picking up the ultraviolet light from flaming
material. It’s designed for areas where an open fire is
liable to occur with large amount of radiation and no
smoldering stage, or where quick response to a fire is
required. This detector can be applicable to zone 1
and 2 of explosive areas.
The detector is able to work either in addressable
mode connecting with GST intelligent fire alarm
control panel to transmit signal through detection loop
or in non-addressable mode connecting to 24VDC
power supply to transmit signal by outputting different
resistance values.
Connection and Wiring
Screened 2-core cable with cross section 1mm2or
above, and outer diameter φ 8 mm is required for field
wiring. Please follow the steps below:
(1) Rotate down the back cover and the cable
fastening nut.
(2) Thread a proper length of the cable through the
fastening nut, metal washer and joint washer in
sequence.
(3) Peal away the outer layer of the cable with 5mm of
metal core exposed, rotate in the cable together
with the joint washer, metal washer and the
fastening nut into the detector housing, and fasten
the nut using a spanner.
(4) Connect the cables to corresponding terminals of
the detector, and the screen layer to the safety
earth position inside the housing.
(5) Fasten the back cover with tools, and make sure
the detector is earthed through its safety earth
position on the cover.
Installation
(1) Fig. 1 is the schematic diagram for installing the
detector.
(2) Please check the following after installation:
zThere shall not be any crack or air bubbles.
The back cover and the detector shall be
securely fastened.
zThere shall not be any scratch or crack on the
detecting window.
zThere shall be joint washer in the wiring hole.
zThe joint washer matches with the cable
diameter.
zThe cable fastening nut is locked.
zThere is earth cable at the “earth” mark.
zThe detection window shall face the protected
area.
Note: The detector shall be installed in compliance
with relative installation codes. Make sure the
housing is in good condition.
Fig. 1
Application
Schematic of system connection is shown in Fig. 2
(addressable mode) and Fig .3 (non-addressable
mode).
Fig. 2
Fig. 3
Operation
In addressable mode, Terminal Z1 and Z2 are to be
connected with the loop of FACP polarity-insensitively.
The FACP polls the detector status through the loop,
and displays its fault and fire alarm messages.
In non-addressable mode, 24VDC power supply can
be directly applied to Terminal Z1 and Z2. K1 and K2
output different resistance in different conditions. If the
resistance is 4.7kΩ, the detector is in normal standby
state; if the terminals are shorted, the detector is in fire
condition; if the terminals are open, the detector is in
fault condition.
The detector has three sensitivity levels. The factory
default is Level 1. The address and sensitivity can be
read and changed using P-9910B Programmer.
Please refer to P-9910B Hand Held Programmer
Operation Manual for details.
The Intelligent Solution
DC-9104Exd Digital Flame Proof
UV Flame Detector
M6
×
60
M3
×
16
FACP
Z1
Z2
Z
1Z
2K
1
K
2
DC-9104Exd Detector
Hazardous Area
Safety Area
Input Equipment
Z
1Z
2K
1
K
2
DC-9104Exd Detector
24VDC
Signal
Input
Hazardous Area
Safety Area
Z1and Z2 connects with the loop
of FACP, polarity-insensitive.
Z1, Z2: Power input,
polarity-insensitive.
K1, K2: Signal output.
Resistance between the
terminals is 4.7kΩnormally.
Shorted in fire alarm
condition.
Open in fault condition.

30307309 Issue 1.01
Specification
Addressable Mode:
Loop voltage: 24V
Ranged: 16V~28V
Operating Voltage
Non-addressable Mode:
Voltage: 24VDC
Ranged: 20VDC~28VDC
Addressable Mode:
Standby current ≤2mA
Alarm current ≤3mA
Operating Current
Non-addressable Mode:
Standby current ≤13mA
Alarm current ≤23mA
Power-up Time ≤10s
Indicator Red. It flashes when
polling, and illuminates
steadily in alarm.
Programming Mode Electronic programming.
Occupying one loop
address.
Address Range 1～242
Spectrum Response
Range
185nm～260nm
Detection Angle
Detection
Distance※
25m for Level I, 17m for
Level II and 12m for Level
III.
Ingress Protection IP66
Ambient
Temperature
－20℃～＋60℃
Relative Humidity ≤95%RH, non-condensing
Dimensions 147mm×106mm×92mm
Material and Color ZL102 aluminum alloy,
silvery grey.
Weight 1.5kg
Installation Hole
Spacing
110mm×72mm
Explosion-proof
Mark
Ex d CT6Ⅱ
※Test fire: The flame generated by 2000g of alcohol
in a container with bottom area 33cm×33cm and
height 5cm.
Accessories and Tools
Name and Model Qty. Remarks
P-9910B Hand Held
Programmer 1 Order separately
Expansion Bolt M6×60 3
Screws M3×16 2
Maintenance
(1) The detector shall be cleaned at lease once a year
to ensure normal operation of the system.
(2) Before cleaning, notify the proper authorities that
the system is undergoing maintenance and will
temporarily be out of service. Disable the zone or
system undergoing maintenance to avoid
unwanted alarms.
(3) The detector shall be tested after being cleaned
and re-installed. After testing, notify the proper
authorities the system is back in operation.
Caution
(1) The detector should be handled with care during
storage, transportation, installation, commission
and maintenance to avoid damage from falling,
impact, outside force and friction .
(2) Installation and maintenance should strictly comply
with relative codes for explosive and hazardous
areas.
(3) Never open the cover for maintenance in field.
(4) The enclosure must be earthed.
(5) The following places are not suitable for the
detector:
Where flameless fire is to be expected.
Where intensive smoke spreads before flames.
Where the "view" of the detector is opt to be
obscured.
Where the sun can directly shine the detection
window.
Where there is strong UV light source in field,
like a tungsten halogen lamp.
Where open fire, welding, X rays, arc or sparks
may exist in normal condition.
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.
GST China
Gulf Security Technology Co., Ltd.
No. 80, Changjiang East Road,
QETDZ, Qinhuangdao, Hebei,
P. R. China 066004
Tel: [phone]
Fax: [phone]
[email protected]
www.gst.com.cn
GST UK
Global System Technology PLC
Lion Court, Staunton Harold Hall,
Melbourne Road, Ashby de la Zouch,
Leicestershire, England LE65 1RT
Tel: [phone]
Fax: [phone]
[email protected]
www.gst.uk.com
GST Dubai
Global System Technology PLC
PO Box 17998 Unit ZA04
JEBEL ALI Free Zone,
Dubai, UAE
Tel: [phone]
Fax: [phone]
[email protected]
www.gst.uk.com
This document is subject to change without notice. Please contact GST for more information or questions.