AirSense LM80031 Draft User manual

®
Installer’s Handbook LM80031 • Draft
Aspirating Smoke Detector
™

© AirSense Technology. 2008
Page 2
Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
Reproduction of this document is strictly prohibited unless written permission is obtained from AirSense Technology.
In line with continuous product improvement, AirSense Technology reserves the right to modify or update specifications without notice.
AirSense, Stratos, HSSD, Micra, ClassiFire and Stratos-Quadra are registered trademarks of AirSense Technology.
Stratos-Ex, FastLearn, PipeCAD, LDD and SenseNET are trademarks of AirSense Technology.
Copyright © 2008 AirSense Technology.
Introduction 3
Indicators 4
Inside the Enclosure 5
Installation 6
Configuration 7
Troubleshooting 9
Installation Tips 10
Servicing and Repair 10
Stratos-Nano Technical Data 11
page
RELEASE NOTES
Rev. Date Revision History Prepared Approved
1.0 10-02-08 Preliminary D. Elms CML

© AirSense Technology. 2008
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Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
The Stratos-Nano is a sophisticated High Sensitivity Smoke Detector that has been
designed to ensure that installation and commissioning is as simple as possible, while
optimising performance.
Stratos-Nano incorporates a patented artificial intelligence system called “ClassiFire”.
This system allows the detector to configure itself to the optimum sensitivity for any
environment.
The ClassiFire system also monitors the detector chamber and air filter for contamination
and automatically compensate for it, providing a stable level of sensitivity or signalling
a fault if the contamination exceeds the maximum that can be compensated for. This
system has proven its worth many times by detecting slow-growth, incipient fires in
difficult environments.
This smoke detector is Class 111 as defined in EN60950. It is designed to operate from
Safety Extra Low Voltages and does not generate any hazardous voltages.
Indicates that the detector is a Class 1 laser product as defined in IEC 60825-1. The unit
incorporates a Class 3B embedded laser that must not be removed from the detector
as retinal damage may occur if the beam enters the eye.
If this detector is to form part of an approved fire detection system its power should be
supplied from an approved power supply (typically EN54-4).
Indicates that the main PCB is static sensitive and should not be handled without static
precautions being taken.
AirSense Technology has taken every care to ensure that the Stratos-Nano is as simple to
install as possible but in case of difficulty, please contact our Help Line to ensure trouble
free installation and operation.
AirSense Technology takes no responsibility for damage or injury occasioned as a result
of failing to install or operate and maintain the equipment in accordance with these
instructions.
Introduction
HELP LINE
(+44) (0) 1438 751296
LASER CLASS 1
PRODUCT

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Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
© AirSense Technology. 2008
1. Indicators
1. Fire Alarm indicator illuminates when the alarm level has been reached and the
time delay has expired.
2. Pre-Alarm indicator illuminates when the pre-alarm level has been reached and
the time delay has expired.
3. Fault illuminates when the unit has a fault and a fault signal is being sent to the
fire alarm panel or connected monitoring equipment.
4. OK illuminates to show normal operation when there are no faults. The OK lamp
will flash during the 15 minute FastLearn™ period when the detector is learning
its environment.
5. Flow illuminates to show that the fault signal is as a result of a flow fault.
6. Filter illuminates to show the filter needs replacing.
7. Head illuminates to show that the fault signal is caused by a problem with the
sensor head.
1
2
3
4
5
6
7
If the fault (3.) is illuminated but flow (5.), Filter (6.) and head (7.) are all off, then
the fault signal is produced by the PSU monitor system.
NB ☞

© AirSense Technology. 2008
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Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
2. Inside the
Enclosure
1. Filter.
2. Configuration switches.
3. APIC or serial I/F connection for card.
4. Fire relay terminals.
5. Pre-alarm relay terminals.
6. Fault relay terminals.
7. I/P terminals for connection to APIC or serial i/f card.
8. Programming connector for upgrading software.
9
1
2
3
5
6
7
8
4

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© AirSense Technology. 2008
3. installation Mechanical installation
Before mounting the detector to the wall, the installation should be planned. If cable
entries extra to the two holes provided in the box are required, then these should be
carefully drilled before mounting the detector. The enclosure moulding shows the
allowed positions for additional cable entries, two at the top adjacent to the pre-drilled
holes and one at the bottom. If these are required they should be carefully drilled out.
They are not intended to be “knocked-out” with a hammer.
The front cover of the detector is retained by a hook at the top and a single screw at
the bottom. The installation should be planned so that access to the cover screw is not
impeded by equipment immediately below the detector.
The detector should be screwed to a flat surface using the three mounting points (top
middle and bottom corners). In the event that the wall is not flat, it may be required
to first mount a board to the wall and then fix the detector to the board. Care should
be taken when tightening the mounting screws to ensure that the case is not damaged
or distorted by over-tightening.
Pipe installation
The pipe inlet and exhaust ports on the Stratos-Nano are positioned the correct
distance from the wall so that a standard pipe clip can be used to support the pipe as
it enters the port. The pipe should be pushed firmly into the port so that the taper on
the port holds the pipe firmly and seal the joint between the detector and the pipe
without the need for additional sealant. If pipe of a different outside diameter is to
be used then an adaptor needs to be bought or made to ensure a good fit. Excessive
force should not be used when pushing in the pipes. It should not be necessary and
risks damaging the detector.
The inlet is the left-hand port, identified by an arrow on the top of the detector
pointing towards the pipe stub. The exhaust is the port on the right-hand side of the
detector identified by an arrow pointing away from the pipe stub.
If the system design does not require a sealed return air path (piped Exhaust), it may
still be beneficial to fit a stub of pipe with an elbow to prevent debris from falling
into the detector through the exhaust port. In clean environments this may not be
required, but it is recommended anyway as debris falling into the exhaust can affect
the performance of the flow monitor.
The pipe layout and sampling hole sizes should have been designed using the PipeCad
software package to ensure that the design meets the performance requirements.
Cable installation
To make wiring of the detector easier, all of the screw terminals are positioned within
easy reach once the cover is removed. An area beside the terminals has been left to
allow cables to be routed tidily from the entry gland to the screw terminals.
All cables used should be screened and the cables should enter the enclosure through
cable glands. The routing of cables within the detector should be kept tidy, with no

© AirSense Technology. 2008
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Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
no excessive amounts of cable overflowing from the cable area. All cables should be
kept within this area, and no cables should be routed to run over the top of any of the
circuit boards.
It may be desirable for one of the cables to enter the bottom of the detector. This can
be useful if the PSU is positioned below the detector. If this is to be done, the cable
entry should be carefully drilled out prior to fitting the detector to the wall, and a gland
should be fitted. When the detector is installed, the wiring should be run along the
cable duct provided at the left-hand side of the detector and into the cable area before
being terminated at the screw terminals. Care should be taken to ensure that access to
the front cover screw is not impeded by the PSU.
The Stratos-Nano is designed to be easy to install and commission. A single switch
bank is all that needs to be set up to configure the detector.
The switch functions are as follows:
1-2. Alarm factor Off, Off = 3, On, OFF = 4, Off, On = 5, On, On = 6 (see note 1)
The lower the Alarm Factor the higher the sensitivity of the detector. In applications
with a large amount of background dust and smoke, it is often better to reduce the
sensitivity to reduce the chances of nuisance alarms.
3. Fix alarms Off = set by ClassiFire, On = fixed (adds 8 to alarm factor)
Setting this switch stops the ClassiFire system from modifying the alarm thresholds
after an initial 15-minute period. This bye-passes the filter contamination
compensation and the fine-tuning of the alarm thresholds to the environment.
4-5. Flow limit offset Off, off = 3, On, Off = 6, Off, On = 20, On, On = 45) see
note 2.
These switches set the sensitivity of the Airflow monitoring system. In areas with a
tightly controlled, stable air pressure then 00 can be used to give high sensitivity to
flow variation. In less controlled environments a higher flow limit offset should be used
to avoid nuisance Fault reports.
6. Flow delay (sec) Off = 240, On = 30
This sets the time for which a flow fault must be present before it is reported. 0 gives
better immunity to nuisance fault reports, but 1 gives faster flow fault response.
7. Input select Off = power monitoring, On = ClassiFire override
If this switch is set to 0 then the input terminals are used for power supply monitoring.
In this configuration, opening a link between the input terminals will cause the
detector to indicate a Fault. If the switch is set to 1, then linking the input terminals
will reduce the sensitivity of the detector. This is useful if it is known that certain
normal event are likely to cause an increase in background smoke or dust. (eg opening
an oven door). A remote switch can be used to desensitise the detector.
4. Configuration

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© AirSense Technology. 2008
8. Disable auto calibration Off = auto calibrate enabled, on = auto calibrate
disabled
If this switch is set, then the normal power-up calibration of the detector is bye-
passed and the last stored values are used. This applies to both the airflow calibration
and the ClassiFire histogram data. It is often beneficial to set this switch once the
commissioning is complete so that in the event of a power cut, the detector does not
re-calibrate itself. If the detector is to be moved to a new location, or if its environment
has changed for some other reason then it is advisable to cycle the power with this
switch off so that the detector does recalibrate itself.
Notes:
1. Changing alarm factor starts a new FastLearn.
2. Changing the flow limit offset starts a new flow calibration followed by a flow limit
setup.
NB ☞

© AirSense Technology. 2008
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Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
5. Troubleshooting Nuisance alarms occur too often:
• This normally indicates that the detector is set at too low an alarm factor for the
environment. Increasing the alarm factor using the DIL switches will normally
resolve the problem. If the problem persists, then it is possible that the sensor
chamber has become contaminated. In this case the detector should be returned
for service.
Detector will not pass smoke test:
• Check that the detector is not in Fast-Learn (shown by flashing OK LED).
• Ensure that the detector completed its fast-learn in its normal environment. If
there was residual smoke from a previous smoke test, then the detector will
desensitise itself.
Nuisance Flow faults:
• This indicates that the flow monitoring is set too sensitive for the environment.
The flow limit offset should be increased using the DIL switches.
• If the flow faults last only a few seconds, then setting the flow delay may resolve
the problem by requiring that the flow is abnormal for a longer period of time
before a fault is flagged.

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© AirSense Technology. 2008
7. Servicing and
Repair
The main circuit board is retained using 5 M3 screws. If it should be necessary to
replace the circuit board for any reason, it is important that all 5 screws are replaced
as they form part of the air path seal. If a screw is omitted then sample air will tend to
leak out of the air path and may cause contamination of the circuit board.
Removal of the main PCB reveals the flow sensor board, which is plugged onto
the underside of the main PCB. If the flow sensor board has accumulated excessive
amounts of dust, it can be cleaned using compressed air or a soft brush. Care must be
taken to avoid damaging the circuit board. When refitting the PCB assembly, ensure
that the flow sensor has engaged with the board support in the bottom of the air
path and the main PCB is sitting flat on its mounting bosses before tightening the M3
retaining screws.
6. Installation Tips • Follow best wiring practice when routing connection cables. Keep wiring neat
and as short as possible while providing adequate stress relief.
• Use screened cables.
• Perform smoke tests to ensure the sampling holes are capable of detecting
smoke.
• Consult relevant standards and codes of practice to ensure installations meet
relevant legislation requirements
• Use an EN54-4 approved power supply to power the detector, with adequate
battery and charger capacity to meet relevant requirements.
• Use full antistatic handling precautions if carrying out authorised work involving
the removal or handling of PCBs – NB: failure to do so invalidates the
product’s warranty.
• Return loose circuit boards for repair or refurbishment in proper antistatic
packaging – NB: failure to do so invalidates the product’s warranty.
• Ensure that if screws are for any reason removed from the main PCB, that they
are replaced. The screw holes pass through the detector sealing plate, which
is an integral part of the detector’s sealed air path. Removing one or more of
the screws will cause an air leak that could degrade the detector’s aspirating
performance.

© AirSense Technology. 2008
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Stratos-Nano • INSTALLER’S HANDBOOK • Iss. 1
8. Stratos-Nano
Technical Data
SELV rating (EN 60950) Class III
Supply Voltage 21.6V - 26.4V DC
PSU Type: conforming to EN 54-4
Electrical safety complies with BS EN
610190-1
Size (mm) 190W x 230H x 110D
Weight ??kg
Operating temperature range 0 to +38°C (UL268)
–10 to +60°C (CEA4022)
Operating humidity range 0 - 90% Non Condensing
BS EN 61010-1 Pollution degree 1
BS EN 61010-1 Installation Cat. II
Sensitivity range (%Obs/m) Min = 25% Max = 0.03% FSD
Maximum sensitivity resolution 0.0015 % obs/m
Detection principle Laser light scattering mass detection
Particle sensitivity range 0.0003µm to 10µm
Current consumption XXXXX
Relay contact rating 500mA @ 30V
Maximum sampling pipe length 100 metres total
Sampling pipe inlets 1
Alarm relays Relays provided for pre-alarm, alarm
and fault. Aux alarm and fire 2 available
via APIC or serial comms.
Chamber service intervals Greater than 8 years (depending on
environment)
Programming Via dil switch
Serial data bus Available by add-on card
IP rating IP50
This equipment is only to be used in accordance with this specification. Failure to
operate the equipment as specified may cause damage to the unit.
NB ☞
*Devices, such as local sounders and beacons can demand high in-rush currents,
which may damage the relays. If relays are used to drive the device directly, a suitable
47 ohm current-limiting resistor should be placed in series with the load.

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Tel: [phone] • Fax: [phone]
e-mail: [email protected] • www.airsensetechnology.com
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