wireless optical smoke detector
The detector is linked and all the parameters (address, system code etc.) necessary to work correctly are stored.
If the LED remains switched on the red light it means that the linking operation failed. In this case remove the main
battery, switch alternatively the ON / 1 switch a few times in order to discharge the internal capacitor and then start again
from point 2).
IMPORTANT NOTE! Programming is considered to be completed successfully only if there is an indication of programming
success on the detector and on the translator or on the window of the PC configuration program.
5) Put on the battery cover.
The wireless optical smoke detector continuously samples the air in the protected area to provide the earliest warning of fire and yet
offers a high level of false alarm rejection. An alarm condition is determined when the level of smoke inside the optical chamber
exceeds the alarm threshold; consequently an alarm message is sent to the control panel through its wire to wireless translator
module and, eventually, one or more wireless expander modules.
The advanced design of the smoke inlet of the optical chamber guarantees a very high rejection to the introduction of dust, effectively
increasing the time between maintenance periods.
Communication between the detector and the translator / expander modules is wireless, via the „Sagittarius‟ bidirectional protocol.
Secondary battery housing
Secondary battery
Picture 2 - Secondary battery housing
1. Detector
2. Mounting base
3. Bicolour LED
4. Link - Program switch
5. Tamper switch
6. Batteries housing
7. Secondary battery
8. Main battery
9. Battery cover
Picture 1
The wireless optical smoke detector is equipped with a bicolour LED
(red / green) that provides visual indication for functional conditions and
battery levels as indicated in table 1.
The linking operation permits the configuration of the wireless optical
smoke detector on the translator module.
The linking operation described below does not change if made directly
from the translator module or from the PC configuration program;
please, refer also to the “Guide to wireless system installation” and
similar documentation.
1) Verify that the secondary battery is present; if not, insert the battery
into its housing with the positive pole facing up (Picture 2).
2) Move the switch to position ON (Picture 3).
3) Insert the main battery (Picture 4).
Ensure that battery polarity is correct.
The visual LED indicator switches green once, then four times red
(programming mode) and will, successively, turn off. This
indicates that the detector is ready to be linked to the translator
Status description
LED indicator signal
Switching into “operating
mode”; occurs after main
battery insertion.
4 short red LED blinks.
Switching into “programming
mode”; occurs immediately
after the linking phase is
Green LED Short blinks.
“Self-adjustment” mode;
occurs during the linking
phase: device is programming
itself with the wireless system
Red LED blinking: 1 second
on and 0.1 second off.
Normal active mode or device
No signal from LED.
Alarm condition
Red LED blinking: 0.5 second
on and 0.5 second off.
Main battery fault (low level)
Orange blinking: 0.1 second
on and 5 seconds off.
Secondary battery fault (low
Green LED blinking: 0.1
second on and 5 seconds off.
Both batteries fault
Sequential orange-green LED
blinking: 0.1 second on and 5
seconds off.
Tamper fault
No signal from LED
Main battery
Picture 3 - Link - Program switch
Picture 4 - Main battery
It is possible to assess the wireless communication quality of the sensor by using a testing feature built in the device.
After a successful linking operation, by moving the Link-Programming switch on the ON position, the sensor‟s indicator will start
blinking according to table 2.
Always remember to reposition the switch to 1 after the assessment operation: device will NOT work operatively while the
switch is on the ON position.
Communication quality
Device’s indication
No connection
Two red blinks
Link margin is less than 10 dB
One red blink
Robust communication with link margin from 10 dB to 20 dB
One green blink
Robust communication with link margin over 20 dB
Two green blinks
Table 2
For specific information regarding detector spacing, placement and special applications refer to your specific national standards.
It is strongly advised to mount the device as far as possible from metal objects, metal doors, metal window openings, etc. as well as
cable conductors, cables (especially from computers), otherwise the operating distance may greatly drop. The device should not be
installed near electronic devices and computer equipment that can interfere with the reception quality.
1) Select the position of the detector before installing and fixing its supporting base. Verify, from that position, that the
communication between the detector and the translator or the expander is correctly established and working (see the
2) Install and fix the base, in the selected position, with the screws provided (Picture 5 and Picture 6).
3) Insert the detector onto the base (Picture 5).
Other fault type (fault on the
Sequential orange-green LED
4) Move the switch in position 1 to trigger the communication between
optical analysis path, high
blinking: 0.5 second each
level of contamination inside
the detector and the translator.
The green LED switches on once, then it blinks many times
(operating mode), successively the red LED blinks many times
Table 1
(self-adjustment mode) and, finally, after alternating green-red for one second, the indicator turns off: this indicates that
the linking procedure has been performed correctly and the detector has programmed itself .
Picture 5 - Detector placement
SPNK-754431-114 (v2.2)
4) Wipe the exterior housing of the detector with a clean, damp, lint-free cloth to remove any surface film that can later
attract airborne contaminants.
The base for the wireless optical smoke detector has a special anti-tamper device block. To lock the sensing device onto the base,
cut off the small plastic lug on the plastic blocking grip on the detector base (Picture 6).
5) After all detectors have been inspected and serviced, reinstall them in their mounting bases, re-apply power to the system and
check correct operation as described under the TESTING paragraph.
Detector block. Remove the small
plastic lug on the plastic blocking grip,
to allow the block of the detector
60 mm
Holes to screw the base onto the wall
The wireless optical smoke detector periodically performs a self-test and, if a fault condition is detected, a fault message is sent to
the control panel via translator / expander.
The fault condition is locally signaled by the visual LED indicator located at the center of the detector (see Table 1).
A fault condition is determined by:
a) Fault on the optical analysis path (chamber, electronic circuit, etc).
Picture 6 - Detector block and holes for the screws
To remove the blocked detector from the base, insert a tool, like a small screwdriver, into the hole and remove the detector
(Picture 7).
Tool to remove the
blocked detector
b) High level of contamination inside the optical chamber.
c) Low batteries level.
Communication range with the
translator or expander
200 m
Operating frequency
868 MHz
Modulation type
Operating frequency channels
Radiated power
5 dBm (3 mW)
The wireless optical smoke detector has been designed to permit a magnetic functional test. When the test is performed with an
appropriate magnet, a fire alarm message is sent to the control panel via translator / expander.
To perform the magnetic test put and hold the magnet near the surface of the indicated area (Picture 8). The detector must enter into
alarm condition, activate the central LED indicator (blink red as per Table 1) and transmit the alarm message to the control panel.
The detector must be reset by the specific command on the control panel (see the RESET paragraph).
All detectors must be tested after installation and, successively, on a periodic basis.
Transmission message period
60 sec
Main battery *
Type CR123A (3 Vdc)
5 years typical
Secondary battery *
Type CR2032А (3 Vdc)
2 months typical
110 mm x 65 mm
130 g
IP rating
Max tolerated humidity
(no condensing)
95% RH
Operating temperature range
From –10 °C to +55 °C
Picture 7 - Detector block removal
Hole to unblock the detector
Picture 8 - Magnetic test area
Magnetic test area.
Correct position for magnet test
Open space
Including adaptor wall
Including adaptor wall
Table 3
* When a low battery condition is indicated, both, main and secondary, batteries must be
changed altogether.
** Check latest version of document TDS-SG100 for further data, obtainable from your
To reset the detector from alarm or fault condition it is necessary to send the reset command from the control panel.
The wireless optical smoke detector is provided with a tamper switch and, in case of removal of the detector from its base, it sends a
tamper detection message to the control panel (Picture 9).
Picture 9 - Tamper switch
Tamper switch
1) Before starting any maintenance work, isolate and disable the system, in order to avoid accidental and unwanted alarm
2) Remove the detector from its mounting base to allow inspection and servicing at ground level and in good light.
Inspect the smoke entry ports around the sensor and use a small, soft bristle brush to dislodge any obvious contaminants such
as insects, spider webs, hairs, etc.
3) Use a small vacuum tube or dry, clean, compressed air to suck up or blow any remaining small particles away from the
smoke entry screen area.
Our devices use high quality electronic components and plastic materials that are highly resistant to
environmental deterioration. However, after 10 years of continuous operation, it is advisable to replace
the devices in order to minimize the risk of reduced performance caused by external factors. Ensure that
this device is only used with compatible control panels. Detection systems must be checked, serviced
and maintained on a regular basis to confirm correct operation. Smoke sensors may respond differently
to various kinds of smoke particles, thus application advice should be sought for special risks. Sensors
cannot respond correctly if barriers exist between them and the fire location and may be affected by
special environmental conditions. Refer to and follow national codes of practice and other internationally
recognized fire engineering standards. Appropriate risk assessment should be carried out initially to
determine correct design criteria and updated periodically.
All devices are supplied with the benefit of a limited 3 year warranty relating to faulty materials or manufacturing defects, effective from the production date indicated on each product. This warranty is invalidated by mechanical or electrical damage caused in the field by incorrect handling or usage. Product must
be returned via your authorized supplier for repair or replacement together with full information on any
problem identified. Full details on our warranty and product‟s returns policy can be obtained upon request.
The warranty does not cover the provided batteries.
Via del Canneto, 14
34015 Muggia (TS)
EN 54-25:2008
EN 54-7:2000+
For use in compatible fire
detection and alarm system
SPNK-754431-114 (v2.2)
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