GST DI-9104Exd Quick Start Manual

Features
 Built-in MCU processes signals and controls
communication digitally.
 Intelligent algorithm ensures quick response to
reduced false alarms.
 3 classifications available.
 High
sensitivity, reliable
dust-proof, damp-proof
abilities.
Description
DI-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 hazardous areas.
The detector is able to work either in addressable
mode connecting with GST intelligent fire alarm
control panel(FACP) 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 1mm
above, and outer diameter φ8 mm is required for field
wiring. Please follow the steps below:
(1) Rotate down the back cover and the pressing nut.
(2) Thread a proper length of the cable through the
pressing 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 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:
 There shall not be any crack or air bubbles.
The back cover and the detector shall be
securely fastened.
 There shall not be any scratch or crack on the
detecting window.
 There shall be joint washer in the wiring hole.
 The joint washer matches with the cable
diameter.
 The pressing nut is locked.
 There is earth cable at the "earth" mark.
 The 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.
30309304
DI-9104Exd Digital Flame Proof
UV Flame Detector
performance, and
and corrosion-proof
2
or
Fig. 1
Application
Schematic of system connection is shown in Fig. 2
(addressable mode) and Fig .3 (non-addressable mode).
Hazardous Area
Safety Area
Z2
Z1
DI-9104Exd Detector
Fig. 2
Hazardous Area
Safety Area
Signal
Input
24VDC
DI-9104Exd Detector
Fig. 3
Operation
The detector powered by 24VDC voltage, which may
come from control panel in addressable working mode
or 24VDC power supply in non-addressable working
mode.
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.
M6×60
M3×16
Sealing and washer,
φ8mm(internal diameter)
M24×1.5
NPT 1/2
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 4.7kΩ normally.

Shorted in fire alarm
condition.

Open in fault condition.
Issue 1.06