GST DC-9101(Ex) User manual

30308679 Issue 1.01
Features
Sensitivities programmable.
Strong environmental adaptability due to drift
compensation.
Integrated algorithm for analyzing fire, improving the
sensitivity highly.
Self-diagnostic.
Reed switch testing.
Removable innovative sensing chamber, easy for
maintenance.
Reporting dirt fault for contaminated chamber.
Fire LED allows 360°viewing.
3-level sensitivities and fixed temperature or rate of rise
programmable.
Description
DC-9101 (Ex) Intrinsically Safe Multi Sensor (the detector),
non-addressable, is a kind of combination detector consisting
of smoke sensing parts and semi-conductor heat sensing
parts in technological structure and circuit structure. It’s
applicable to zone 1 and zone 2 of areas with explosion-proof
requirement in petroleum and chemical industries. It can
match with fire alarm control panel, I-9332 Interface,
explosion-proof detector and end-of-line resistor produced by
GST to conduct the processing of detector signals. The
detector has the advantages of both conventional
photoelectric detector and rate of rise and fixed temperature
heat detector. Just because of the combination of smoke
detector and heat detector, it overcomes the non-sensitivity
to dark smoke particles of ordinary scattering photoelectric
detectors. It can also pick up fire with obvious rise of
temperature such as alcohol flame, thus extending the
application range.
Connection and Cabling
Fig.1 shows the detector bottom and Fig. 2 the base.
A
C
B
100mm
A
Fig. 1 Fig. 2
There are four terminals with numbers on the base.
1: Detection zone positive IN
2: Detection zone positive OUT
3: Detection zone negative IN and OUT
4: No connection.
Recommended Cabling
1.0mm2 or above fire cable. The capacitance distributed
among cables should not be over 0.083μF, and the
inductance distributed should not be over 4.1mH. Laid out
through metal conduit or flame-retardant conduit, subject to
local codes.
Installation
Fix the base with two tapping screws, and then align mark A
on the detector bottom with B on the base, rotate the detector
to align mark A with mark C (Refer to Fig. 1 and 2 for the
position of the marks), the detector will be fitted to the base.
Fig.3 shows the mounting of the detector.
Detector
Base
Conduit
Back Box
Fig. 3
Application
Warning: The alarm current depends on the current limit
of the control panel. 24VDC cannot power the detector
directly. Otherwise the detector will be blown up for lack
of current limit resistor.
The sensitivity level 1 is defaulted, which can be modified by
P-9910B programmer. Refer to P-9910B Hand Held
Programmer Installation and Operation Manual for details.
In power-on state, input unlocking password and press Clear
to unlock. Press Function, then number “3”, the screen shows
“-” at the last digit.
Input corresponding sensitivity or parameter and press
Program, the screen will show a “P”, the corresponding
sensitivity or parameter is programmed. Press Clear to clear
the "P". Input locking password and press Clear to return.
Rate of rise and level 1 is defaulted.
Parameters set using programmer
Input Number
Smoke Sensitivity
Heat Sensitive
1
Level 1
Rate of rise
2
Level 2
Rate of rise
3
Level 3
Rate of rise
11
Level 1
Fixed temperature
12
Level 2
Fixed temperature
13
Level 3
Fixed temperature
If the detector connects with fire alarm control panel, I-9332
interface and other exposition proof products in series, a
4.7kΩend-of-line resistor should be connected to the end of
loop. System connection is shown in Fig. 4. Note the polarity
of power line.
O2 O1 I2
I1
K2
K1
Circuit Board
D1
D2
Z1
Z2
O+
O-
Zener Barrier
13
24
Safety Area
I-9332 Interface Explosion Proof Detector
Harzardous Area
4.7kΩEnd-of-line resistor
Explosion Proof Detector
Explosion Proof MCP
Explosion Proof Detector
Fig. 4
Testing
Before testing, please ensure that the detector has been
installed correctly and powered up. After 10 seconds,
testing begins.
1) The detector must be tested after installation and
periodical maintenance.
DC-9101(Ex)
Intrinsically Safe Multi Sensor
The Intelligent Solution

30308679 Issue 1.01
2) Testing method
a) Reed Switch Testing
Magnetic test zone is shown in Fig. 5. Put the magnet of
commission tool close to that of the detector and hold
on for a few seconds until the detector generates alarm.
Test Zone
Ex
Fig. 5 Fig. 6
b) Smoke test
Taking a smoldering cotton rope close to the detector,
blow the smoke into the detector until the detector
generates alarm.
c) Temperature test
Approach a heater (such as a hair drier) to the
thermistor of the detector until it alarms.
3) After testing, disconnect the power to the detector for over
5 seconds to reset it. Notify the proper authorities that the
system is back to normal operation.
Maintenance
The detector should be installed just before
commissioning and kept well before installation, taken
corresponding measures for dust-proof, damp-proof and
corrosion-proof.
The dust-proof cover cannot be removed until the project
has been plunged into usage. Otherwise it can’t report
alarms.
Clean the detectors regularly, at least once a year to
ensure normal operation of the system.
If nuisance alarms are often found of the detector on site,
the sensing chamber should be cleaned and replaced
when necessary.
Steps for chamber cleaning:
a) Open the top cover of detector, and draw out the
sensing chamber by slightly lifting its two sides
using a straight screwdriver, as shown in Fig 6.
b) Clean the internal of the chamber by alcohol cotton
swab with tweezers or using clean water and brush.
Make sure not to leave any fiber in the chamber.
c) Put back the chamber and the top cover.
Before cleaning, notify the proper authorities that the
system is under maintenance and will temporarily be
out of service. Disable the automatic controls relating to
the zone or system under maintenance to avoid
unwanted actions.
The detector should be tested after re-installed to
ensure normal operation.
Fire simulation test should be made to the detector once
half a year.
Cautions
The explosion-proof 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
Operating Voltage
16VDC~28VDC
Standby Current
≤60μA
Alarm Current
10mA≤I≤30mA
Explosion-proof
Mark
ExibIICT6
Zener Barrier
Uo=28V, Io=93mA
Indicator
Red (flashes in normal and
illuminates in alarm)
Maximum Ripple
Voltage
2V (peak-to-peak value)
Alarm Clear
Instantaneous Power-off (2s Min.,
1.0VDC MAX.)
Power-up Time
≤5s
Heat Sensitivity
Action Temperature: 135℉(57.2℃)
Response Velocity: 15℉/min (8.3℃
/min)
Wiring
2-core cable for power line.
Environment
Temperature
0℃～+37.8℃
Relative Humidity
≤95%, non condensing
Material of
Enclosure
ABS (surface resistance≤109Ω)
Ingress Protection
Rating
IP23
Dimensions
Diameter: 100mm
Height: 54.5mm (with base)
Mounting Hole
Distance
45mm~75mm
Weight
110g
Accessories and Tools
Model
Name
Remark
I-9332
Interface
Order separately
DB-01(Ex)
Base
Order separately
JTY-HM-GST102
Commission
Tool
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.
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
P.O. Box 17998 Unit ZA04
JEBELALI 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.