30312267
Issue 1.08
Features
Integrated algorithm of analyzing fire, recognize black smoke
quickly.
Drift sensitivity, suit to environment extensively.
Removable innovative sensing chamber, easy for maintenance.
The fire LED allows 360
°
viewing.
Providing remote terminals connect with remote indicator.
Featuring magnetic test.
2-level sensitivities (complying with EN 54-7 just when sensitivity is
level 1).
Description
DC-9102E
Conventional
Photoelectric
Smoke
Detector
is
a
new-generation product. With built-in microprocessor, the detector is
highly fixed with reliable fire judging program, which make it stable and
reliable performance.
When the detector checks fire signal, it will send fire information to the
control panel or addressable zone monitor unit by means of current
changing. The detector keeps turning on the LED to indicate alarm state
until it is reset.
The detector is developed from sensing chamber by scattering theory. It
has the ability to resist dust contamination and environmental light.
The detector utilizes drift compensation algorithm: When the environment
is changing, such as dust accumulation, humidity and temperature
changing, the detector can figure out these drift variation to make up for
sensitivity, thus the amount of smoke needed to generate an alarm
remains constant, irrespective of environmental conditions. The principle
diagram is shown as Fig. 1.
Smoke density Smoke density
a Fixed sensitivity b Environment value after drifting (prone
to nuisance alarm)
c Normal environment value A Variable sensitivity
Fig. 1
Connection and cabling
The orientation base is shown in Fig. 3.
C
B
A
Fig. 2 Fig. 3
There are four terminals with number on the base.
“1” is connected with
output anode of addressable zone monitor unit or the anode of the power
supply;
“2” is used as output, connected with anode of next detector
(Terminal 1) and also connected with anode of remote indicator;
“3” is
connected with output cathode of addressable zone monitor unit or the
cathode of the power supply as well as the cathode of next detector;
“4”
connects with the cathode of remote indicator.
Recommended Wiring
1.0mm
2
or above fire cable for all terminals laid through metal conduit or
flame proof conduit, subject to local codes.
Note: Different color cables are used to avoid wiring mistake.
Installation
Fix the base with two taping screws. Then align A (Fig.2) on the bottom of
the detector to B (Fig.3) of the base, and rotate the detector clockwise to
mark C.
Mounting of the detector is shown in Fig.4.
Electrical Box
Conduit
Detector
51.5mm
Orientation Base
Fig. 4
Application
Notes: 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 and polling LED status is
“ON” are default, which
can be modified by P-9910B programmer.
Program parameters: In power-on state, input unlocking password and
press
Clear
to unlock. Press
Function
, then press “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.
Table 1 Parameters Setup
Parameter
Smoke
Sensitivity
Polling LED
Status
1
1
ON
2
2
ON
129
1
OFF
130
2
OFF
Read sensitivity: On power-on time, press
Test
, the LCD screen shows
the address of the detector; Press
Up
, it shows in turn the sensitivity,
device type, initial sensitivity.
The detector is suitable for hotels, restaurants, office buildings, teaching
buildings, banks, warehouses, libraries, computer rooms and switch
rooms, etc.
When the detector connects with conventional fire alarm control
panel or addressable zone monitor unit from GST, and if DP-9907 Active
End of Line Unit is connected to the end of output loop, DB-01D base
should be used.
Used as the detector base, DP-9907 Active End of Line is
used to be installed a conventional detector on it. The system
connection is shown in Fig. 5.
O
-
O
+
Fig. 5
DC-9102E
Conventional Photoelectric
Smoke Detector
Time
Time
a
b
c
a
b
c
A
548d/03
2831-CPR-F0003
GST-0007-01
14
