OSID Smoke Detection
Open-area Smoke Imaging Detection
(OSID) by Xtralis is a new innovation
in projected beam smoke detection
technology. By using advanced dual
wavelength projected beams and
optical imaging technology for early
warning smoke detection, OSID
provides a low-cost, reliable and
easy-to-install solution that overcomes
typical beam detection issues such as
false alarm incidents and alignment
Unique Detection Technology
The OSID system measures the level of smoke entering beams of light projected over
an area of protection. A single OSID Imager can detect up to seven Emitters to provide
a wide coverage area. Two innovations in smoke detection technology have been
developed for the revolutionary OSID smoke detector:
Dual Wavelength Particle Detection
The beam projected from each Emitter contains a unique sequence of ultraviolet (UV)
and infrared (IR) pulses that are synchronised with the Imager and enable the rejection
of any unwanted light sources.
By using two wavelengths of light to detect particles, the system is able to distinguish
between particle sizes. The shorter UV wavelength interacts strongly with both small
and large particles while the longer IR wavelength is affected only by larger particles.
Dual wavelength path loss measurements therefore enable the detector to provide
repeatable smoke obscuration measurements, while rejecting the presence of transient
dust particles or solid intruding objects.
• Maximum detection range of 150 m
(492 ft) for the OSI-10
• Dual wavelength LED-based smoke
• Optical imaging with CMOS imaging
• On-board event log for fault and alarm
• High tolerance to false alarm due to
building movement
• High tolerance to transient dust, steam
and intrusion of solid objects
• Easy alignment with large adjustment
and viewing angles
• No need for precise alignment
• Tolerant of alignment drift
• Automatic commisioning in under ten
• Simple DIP switch configuration
• Simple and easy maintenance
• Three selectable alarm thresholds
• Status LEDs for Fire, Trouble and Power
• Conventional alarm interface for
straightforward fire system integration
Optical Imaging with a CMOS Imaging Chip
An optical imaging array in the OSID Imager provides the detector with a wide viewing
angle to locate and track multiple Emitters. Consequently, the system can tolerate a
much less precise installation and can compensate for the drift caused by natural shifts
in building structures.
Optical filtering, high-speed image acquisition and intelligent software algorithms also
enable the OSID system to provide new levels of stability and sensitivity with greater
immunity to high level lighting variability.
• UL
• FM
• CE - EMC and CPR
• VdS
Status information (Fire Alarm, Trouble and Power) is communicated through the
Imager via Status LEDs, dedicated Trouble and Alarm relays, and the Remote Indicator
interface. Specific Trouble (Fault) conditions are identified through coded flashes of the
Trouble LED.
• ActivFire
An internal heating option is also provided on the Imager to prevent condensation on
the optical surface, and a reset input enables an external signal to reset the device.
Simple Installation and Maintenance
The OSID system consists of up to seven Emitters for the 90° Imager unit, located
along the perimeter of the protected area, and an Imager mounted opposite. Each
component can be mounted directly to the surface or can be secured with the supplied
mounting brackets. Battery powered Emitters with three or five years battery life are
also available to reduce installation time and cost.
OSID Smoke Detection
On the Imager, a termination card provides all field wiring terminals, and DIP switches
enable the user to configure the detector for particular applications.
Alignment of the Emitter is simply achieved using a laser alignment tool to rotate the
optical spheres until the laser beam projected from the alignment tool is close to the
The Imager is aligned in a similar way so that its Field of View (FOV) encompasses
all Emitters. A Trouble or Fault will be indicated if an Emitter is missing or outside the
Imager field of view.
The OSID system is highly tolerant to transient dust and dirt and requires little
maintenance in practice. Preventative maintenance is limited to occasionally cleaning
the optical faces of the detector components.
The Imagers are equipped with an onboard event memory for diagnostic purposes.
Connecting the OSID Diagnostic tool allows users to download this memory log for
further alarm and fault analysis and troubleshooting.
Configuration Options
OSID systems may be configured to suit a range of detection spaces by selecting the
number of Emitters and type of Imager. Each type of Imager differs by the lens used in
the unit, which determines the field of view and range of the system.
Field of View
Detection Range
30 m (98 ft)
150 m (492 ft)
6 m (20 ft)
**34 m (111 ft)
12 m (39 ft)
68 m/50 m*
(223 ft/ 164 ft)
Standard Power
High Power
* Distance with OSE-HP-01.
** Maximum Distances measured for the Center Field of View of the Imager. For more details on distances for the
Imager, see the OSID Product Guide.
Emitter / Imager Dimensions
20mm (0.8”)
90mm (3.5”)
106mm (4.2”)
4mm (0.16”)
208 mm (8.2”)
136 mm (5.4”)
Ordering Codes
Imager - 7º coverage
Light shield for Imagers
Imager - 80º coverage
Wire Guard
Emitter - Alkaline battery
Imager Reset Station Surface Mount
Emitter - Standard Power, Wired
Imager Reset Station Flush Mount
Emitter - High power alkaline battery
FTDI Cable 1.5 m
Emitter - High Power, Wired
Laser Alignment tool
Acrylic test filter - pack of 10
Imager environmental housing IP66
Emitter environmental housing IP66
Acrylic test filter - bulk pack (200 units)
Anti-condensation film for Emitters
Emitter - Spare alkaline battery pack
Anti-condensation film for OSID-EHE and
OSID-EHI environmental housings
Replacement Lithium Ion Kit
OSID Installation Kit
Supply Voltage
20 to 30 VDC (24 VDC nominal)
Imager Current Consumption
Nominal (at 24 VDC):
8mA (1 Emitter)
10mA (7 Emitters)
Peak (at 24 VDC) during training mode:
Emitter Current Consumption
Wired Version (at 24 VDC):
350µA Std Power, 800µA High Power
Battery Version (1.9 - 3.2 VDC):
OSE-RBA Built-in Battery:
-SP Version: 5-year battery life
-HP Version: 3-year battery life
Battery life time only valid for use at room
Field Wiring
Cable Guage
0.2 - 4mm² (26-12 AWG)
Alarm Threshold Levels:
Low - Highest sensitivity / earliest alarm:
20% (0.97 dB)
Medium - Medium sensitivity:
35% (1.87 dB)
High - Lowest sensitivity / maximum resistance
to nuisance smoke conditions:
50% (3.01 dB)
Adjustment Angle
±60° (horizontal)
±15° (vertical)
Maximum Misalignment Angle
Dimensions (WHD)
Emitter / Imager:
208 mm x 136 mm x 96 mm
(8.19 in. x 5.35 in. x 3.78 in.)
Operating Conditions*
-10 °C to 55 °C (14 °F to 131 °F)*
10 to 95% RH (non-condensing)
Please consult your Xtralis office for operation
outside these parameters.
Storage Conditions (non-operational)
Humidity: Dry (<95%)
Temperature: 0° to 85° C
Must not exposed to sunlight or other radiation
IP Rating
IP 44 for Electronics
IP 66 for Optics Enclosure
Status LEDs
Fire Alarm (Red)
Trouble / Power (Bi-color Yellow / Green)
Event log
10,000 events
Approvals Compliance
Please refer to the Product Guide for details
regarding compliant design, installation and
* Product UL listed for use from 0°C to 37.8°C (32°F to 100°F)
UK and Europe +44 1442 242 330 D-A-CH +49 431 23284 1 The Americas +1 781 740 2223
Middle East +962 6 588 5622 Asia +86 21 5240 0077 Australia and New Zealand +61 3 9936 7000
The contents of this document are provided on an “as is” basis. No representation or warranty (either express or implied) is made as to the completeness,
accuracy or reliability of the contents of this document. The manufacturer reserves the right to change designs or specifications without obligation
and without further notice. Except as otherwise provided, all warranties, express or implied, including without limitation any implied warranties of
merchantability and fitness for a particular purpose are expressly excluded.
Xtralis, the Xtralis logo, The Sooner You Know, VESDA-E, VESDA, ICAM, ECO, OSID, HeiTel, ADPRO, IntrusionTrace, LoiterTrace, ClientTrace,
SmokeTrace, XOa, XOh, iTrace, iCommand, iRespond, iCommission, iPIR, and FMST are trademarks and/or registered trademarks of Xtralis and/or its
subsidiaries in the United States and/or other countries. Other brand names mentioned herein are for identification purposes only and may be trademarks
of their respective holder(s). Your use of this document does not constitute or create a licence or any other right to use the name and/or trademark and/
or label.
This document is subject to copyright owned by Xtralis. You agree not to copy, communicate to the public, adapt, distribute, transfer, sell, modify or
publish any contents of this document without the express prior written consent of Xtralis.
Doc. No. 15211_28
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