LaserSense 100
Aspirating Smoke Detector
Installers Handbook
P/N 10-3512-505-LS10-04 • 02MAR17
Copyright
©
2017 UTC Fire & Security. All rights reserved.
Contact information
For contact information, see
www.utcfssecurityproducts.eu.
European regulations for construction products
This section includes both regulatory information and a summary on the declared
performance according to the Construction Products Regulation 305/2011. For
detailed information refer to the product Declaration of Performance (DoP).
Certification
Certification body
0832
Manufacturer
UTC CCS Manufacturing Polska Sp. Z o.o.
Ul. Kolejowa 24. 39-100 Ropczyce, Poland
Authorized EU manufacturing representative:
UTC Fire & Security B.V. Kelvinstraat 7, 6003 DH Weert,
Netherlands
Year of first CE marking
15
Declaration of
Performance number 360-3512-0199
EN 54
EN 54-20: 2006
Product identification
See model number on product identification label
Intended use
See DoP point 3
Essential characteristics
See DoP point 9
LaserSense 100 Aspirating Smoke Detector Installers Handbook i
Content
Important information 3
EN 54-20 and UL installation 5
Chapter 1 Product and component descriptions 1
Introduction 2
Available software for the detector 2
Specifications 3
Indicators 4
Inside the detector 5
Removable terminal block connections 6
Chapter 2 Installation and configuration 7
Introduction 8
Antistatic precautions 8
General installation guidelines 9
Docking station 10
Application 11
System design 11
Installation 15
Interfacing with fire alarm panels 21
Setting the detector address 22
Connecting the detector to a SenseNET/RS-485 detector
network 25
Final installation 26
Removing the detector 26
Configuring the detector after installation 27
Connecting to a PC 29
Event log 30
Chapter 3 Commissioning 31
Introduction 32
Commissioning checklist 32
Precommissioning preparation 34
Acclimation period 34
Transport time verification 34
Gross smoke testing 34
Chapter 4 Troubleshooting 35
Troubleshooting the de tec tor 36
ii LaserSense 100 Aspirating Smoke Detector Installers Handbook
Chapter 5 Maintenance 39
Introduction 40
Scheduled maintenance 40
Maintenance procedures 41
Glossary 45
Index 47
LaserSense 100 Aspirating Smoke Detector Installers Handbook iii
Important information
Regulatory informa ti on
This equipment is Class III as defined in EN 60950 (i.e., this equipment is
designed to operate from Safety Extra Low Voltages and does not generate any
hazardous voltages).
As this equipment is part of a fire detection system, input power should be
supplied from an approved power supply conforming to EN 54-4 or UL/ULC and
FM3230 standards.
In order for the installation to conform to EN 54-20, pipes must conform at least
to EN 61386-1 Class 1131.
This product has been desig ned to me et the f oll owing requirements:
• NFPA 72 National Fire Alarm and Signaling Code
• UL 268 Smoke Detectors for Fire Alarm Signaling Systems
• UL 268A Smoke Detectors for Duct Applications
• UL 864 Control Units for Fire Protective Signaling Systems
• CAN/ULC-S524 Installation of Fire Alarm Sy stems
• ULC S527 Control Units for Fire Alarm Systems
• CAN/ULC-S529 Smoke Detectors for Fire Alarm Sys te ms
System reacceptance test after reprogramming (UL/ULC and FM3230): To
ensure proper system operation, this system must be retested in accordance with
NFPA 72 after any programming change. Reacceptance testing is also required
after any addition or deletion of system components, and after any modification,
repair, or adjustment to system hardware or wiring.
Limitation of liability
To the maximum extent permitted by applicable law, in no event will UTCFS be
liable for any lost profits or business opportunities, loss of use, business
interruption, loss of data, or any other indirect, special, incidental, or
consequential damages under any theory of liability, whether based in contract,
tort, negligence, product liability, or otherwise. Because some jurisdictions do not
allow the exclusion or limitation of liability for consequential or incidental
damages the preceding limitation may not apply to you. In any event the total
liability of UTCFS shall not exceed the purchase price of the product. The
foregoing limitation will apply to the maximum extent permitted by applicable law,
regardless of whether UTCFS has been advised of the possibility of such
damages and regardless of whether any remedy fails of its essential purpose.
iv LaserSense 100 Aspirating Smoke Detector Installers Handbook
Installation in accordance with this manual, applicable codes, and the instructions
of the authority having jurisdiction is mandatory.
While every precaution has bee n taken dur i ng the prep ar ati on of this man ual to
ensure the accuracy of its contents, UTCFS assumes no responsibility for errors
or omissions.
Advisory messages
Advisory messages alert you to conditions or practices that can cause unwanted
results. The advisory messages used in this document are shown and described
below.
WARNING: Warning messages advise you of hazards that could result in injury
or loss of life. They tell you which actions to take or to avoid in order to prevent
the injury or loss of life.
Caution: Caution messages advise you of possible equipment damage. They tell
you which actions to take or to avoid in order to prevent the damage.
Note: Note messages advise you of the possible loss of time or effort. They
describe how to avoid the loss. Notes are also used to point out important
information that you should read.
Product Symbols
This symbol appears on the main board of the unit and indicates that the
board contains static sensitive components.
This label is located on the laser chamber at the bottom right of the open
detector and signifies that the unit is a Class 1 Laser product as
specified in IEC 60825-1. The unit incorporates a Class 3B embedded
laser which must not be removed from the detector, as retinal damage
may result if the laser beam enters the eye.
This symbol indicates the Safety ground studs. These are for grounding
cable screens, etc., and should not be connected to 0V or signal earth.
LaserSense 100 Aspirating Smoke Detector Installers Handbook v
EN 54-20 and UL installation
The pipe installation must be designed and verified for compliance with EN 54-20
using PipeCAD software. For more information on PipeCAD, see your PipeCAD
documentation.
EN 54-20 installation
For EN 54-20 compliance the transport time of the last sampling hole shall be
checked following all installation and proven to be less than or equal to that
determined by PipeCAD.
For the installation to comply with EN 54-20 Classes A, B, and C, each sampling
hole must be no less sensitive than 0.62% obs/m.
The calculation can be further refined by leaving a working detector in the
protected area for at least 24 hours at the intended alarm factor for the
installation (this could be done before or after installation). The detector
sensitivity can be read from the Sensitivity figure on the histogram screen of the
Remote software supplied with each detector.
The PipeCAD software will determine the classification of any used configuration.
Commissioning and periodic system tests must involve smoke tests to verify that
the system performs as expected and enters Alarm within the time determined by
PipeCAD from the farthest hole. The detector sensitivity must also be inspected
to ensure it has not radically fallen from the installed figure. If it has changed for
any reason, the new figure must be re-entered into PipeCAD and the
recalculated hole sensitivities must be confirmed to be within the class limits
shown above. The settings of a compliant system should be recorded, as it is
possible by changing certain programmable functions to make the system
noncompliant. If functions are changed, it is recommended that the system is
retested if continuing compliance is in any doubt.
UL installation
Note: UL certified products may also contain additional approvals, e.g. FM3230.
Please refer to the product labels.
UL 268 fire tests were passed with an installation as follows:
Total sampling pipe length: 160 ft. (single pipe)
Number of sampling holes: 10
Worst-case sampling hole sensitivity as indicated by PipeCAD:
1.28% obs/ft.*
Alarm factor: 1
Alarm delay: 0 seconds
These settings gave satisfactory responses to the test fires in 120 seconds or
better. For the purposes of UL 268 compliance, these should be regarded as
worst case values. Layouts should be planned in PipeCAD and the indicated
worst-case hole sensitivity should be better than 1.28% obs/ft.*. Commissioning
vi LaserSense 100 Aspirating Smoke Detector Installers Handbook
smoke tests should be perform ed to ensur e th at the far t hest sampling hole from
the detector is capable of generating a fire alarm within 120s of receiving smoke.
* The results should be verified at installation by entering the installed detector's
Fire 1 sensitivity (as indicated in the remote software histogram screen) into the
PipeCAD “Options/Calculation options/Detector sensitivity” field and recalculating
the layout results.
LaserSense 100 Aspirating Smoke Detector Installers Handbook 1
Chapter 1
Product and component
descriptions
Summary
This chapter provides descriptions of the detector features, specifications, and
controls and indicators.
Content
Introduction 2
Available software for the detector 2
Specifications 3
Indicators 4
Inside the detector 5
Removable terminal block connections 6
Chapter 1: Product and component descriptions
2 LaserSense 100 Aspirating Smoke Det ect or I nst allers Handbook
Introduction
This detector is a highly sophisticated next generation high sensitivity aspirating
smoke detection product that provides all the benefits of air sampling high
sensitivity smoke detection, including very early warning. Designed for easy
installation and commissioning, the detector incorporates a patented artificial
intelligence known as ClassiFire, which allows the detector to configure itself to
optimum sensitivity, alarm thresholds, and minimum nuisance alarms for various
environments.
The detector operates by drawing air from a protected space via a supervised
piping network in relatively small areas. The sampled air is passed through a
dust separator (filter) to remove dust and dirt before entering the laser detection
chamber. State-of-the-art electronics are used to analyse the sampled air and
generate a signal representing the level of smoke present.
ClassiFire intelligence also monitors the detector chamber, continually adjusting
the appropriate operating parameters to counteract the neg ati ve effects of any
contamination. Aspirating smoke detectors are unique in being able to provide a
consistent level of protection in a very wide range of environments by
continuously making m i nor adjustments to sensitiv i ty .
Available soft ware for the detector
The following software applications are available for use with the detector:
• Remote: Provided free of charge with every detector, this software package
enables the user to set up and configure the programmable functions of one
or more detectors or command module from a computer connected via an
RS-232 serial cable.
• SenseNET: SenseNET software is used to configure and manage a large
network of detectors with a simple, streamlined graphical user interface from
a computer connected to a detector or command module via an RS-232 serial
cable to RS-485 converter interface.
Chapter 1: Product and component descriptions
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 3
Specifications
Caution: This equipment is only to be used in accordance with these
specifications. Failure to operate the equipment as specified may cause damage
to the unit, injury, or property damage.
Table 1: Specifications
Specification
Value
SELV rating
EN 60950 Class III
Supply Voltage
21.6V to 26.4 VDC
PSU Type: conforming to EN 54-4
Size
(W × H × D) 300 x 220 x 90 mm (11.8 x 8.6 x 3.5 in.)
Weight
3.8 kg (8.4 lbs.) with docking station
Operating temperature range
−10 to +60ºC (EN 54-20)
32 to 100°F (0 to 38°C) (UL 268, CAN/ULC-S529, FM3230)
Operating humidity range
0 to 90% noncondensing
EN 61010-1 Pollution degree 1
EN 61010-1 Installation Cat. II
Sensitivity range
(%obs/m)
(%obs/ft.)
Min. = 25%, Max. = 0.03% FSD
Min. = 7.62%, Max. = 0.00914% FSD
Maximum sensitivity resolution
0.0015% obs/m (0.00046% obs/ft.)
Detection principle
Laser light scattering mass detection
Particle sensitivity range
0.0003 µm to 10 µm
Current consumption
400 mA
Relay contact
rating 500 mA at 30 VDC
Maximum sampling pipe length
100 meters (330 feet) total
Sampling pipe inlets
2
Sampling pipe internal
diameter
3/4 in. (ID) or 27 mm (OD)
Alarm levels
4 (Alarm 2, Alarm, Pre-Alarm, and Aux. Alarm)
1 relay as standard, others available
Chamber service intervals
Greater than 8 years (depending on environment)
Dust separator (filter)
replacement intervals
Greater than 5 years (depending on environment)
Laser lifetime (MTTF)
Greater than 50 years
Programming
PC via RS-232 or RS-485
Data bus cable
RS-485 data cable
Data bus length
1.2 km (3/4 mile)
IP rating
IP50
Chapter 1: Product and component descriptions
4 LaserSense 100 Aspirating Smoke Det ect or I nst allers Handbook
Indicators
Figure 1 below shows the three indicators on the detector.
Figure 1: Detector indicators
(1) Alarm: Illuminates when the alarm level has been reached and the appropriate time delays
have expired.
(2) Fault: Illuminates when the unit has a fault and a fault signal is being sent to the fire alarm
panel. It also illuminates when the unit is isolated.
(3) 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 first learning about its
environment.
Alarm
Fault
OK
(1)
(2)
(3)
Chapter 1: Product and component descriptions
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 5
Inside the detector
Figure 2 below shows the main interior parts of a detector with the cover off:
Figure 2: Detector interior view (EN/UL certified models)
(1) Removable terminal block connections
(2) Filter
(3) RS-232 serial port
(4) Detector address DIP switch
(5) Addressable Programmable Interface Card (APIC) or relay card port
(6) Internal cover (UL certified models only)
Chapter 1: Product and component descriptions
6 LaserSense 100 Aspirating Smoke Det ect or I nst allers Handbook
Removable terminal block connections
Figure 3 below shows the terminal block connections that connect the detector to
other electronic component s .
Figure 3: Detector terminal block connections
(1) FAULT relay contacts (Open = FAULT)
(2) FIRE relay contacts (Closed = FIRE)
(3) APIC addressable bus connections for use in conjunction with interface card
(4) RS-485/SenseNET connections
(5) Power suppl y connections
LaserSense 100 Aspirating Smoke Detector Installers Handbook 7
Chapter 2
Installation and
configuration
Summary
This chapter provides information necessary to install and configure the detector
system.
Content
Introduction 8
Antistatic precautions 8
General installation guidelines 9
Docking station 10
Application 11
System design 11
Below or above the ceiling installations 13
Installation 15
Mechanical installation 15
Removing the front cover 15
Electrical installation 16
Relay connections 20
Interfacing with fire alarm panels 21
Connecting the detector to an APIC 21
Setting the detector address 22
Address table 23
Connecting the detector to a SenseNET/RS-485 detector networ k 25
Final installation 26
Removing the detector 26
Configuring the detector after installation 27
List of programmable functi o ns 28
Connecting to a PC 29
Event log 30
Chapter 2: Installation and configuration
8 LaserSense 100 Aspirating Smoke Det ect or I nst allers Handbook
Introduction
This topic provides information necessary to install the detector system.
To install the detector:
1. Unpack the shipping carton. Ensure that the package contains a CD-ROM,
three ferrite rings, two cable glands, and the unit.
2. Determine the optimum location for the detector.
3. Mount APIC or Relay Card inside the detector, if required.
4. Mount the docking station.
5. Connect the docking station to the sampling pipe network.
6. Mount the detector to the docking station.
Installation should only be done by trained technicians.
Note: Each relay card is supplied with a RF suppression ferrite ring. To ensure
compliance with all relevant EMC requirements, conductors connected to the
fault output (included screen wire) should be wound once around a ferrite.
Installation should be in accordance with applicable installation requirements.
These include:
• NFPA-70, National Electrical Code
• NFPA-72, National Fire Alarm and Signaling Code
• CSA C22.1 Canadian Electrical Code, Part 1
• CAN/ULC-S524 Installation of Fire Alarm Sy stems
• Any other local, national, or installation requirements or standards.
WARNING: Electrocution hazard. All connections should be made with the
power turned off.
Antistatic pr e ca utions
This system contains static-sensitive components. Always ground yourself with a
proper wrist strap before handling any circuits. This recommendation must be
followed when removing the equipment case, and during installing and servicing.
Caution: When handling any electric components or printed circuit boards,
antistatic precautions must be followed. Failure to do so may result in component
damage.
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 9
Electrostatic discharge can be reduced by adhering to the following guidelines:
• Always use conductive or antistatic containers for transportation and storage,
if returning any item.
• Wear a wrist strap while handling devices and ensure that a good ground is
maintained throughout the installation process.
• Never subject a static sensitive device to sliding movement over an
ungrounded surface and avoid any direct contact with the pins or
connections.
• Avoid placing sensitive devices onto plastic or vinyl surfaces.
• Minimise the handling of sensitive devices and printed circuit boards (PCBs).
General installatio n gu idelines
The following is a brief set of guidelines on installing detectors:
• The detector should normally be mounted at a level where there is easy
access to the RS-232 serial port for configuration and programming.
• The exhaust air from the unit must not be impeded in any way. If the unit is
mounted where the air pressure differs from the sampling location (for
example an air duct), then a pipe must be, then a pipe must be routed from
the exhaust port back to the same air pressure zone as the sampling holes.
• Sampling holes should be free from burrs and swarf.
• All signal cables must be suitable for the application. The specific type of
cable will normally depend upon the local fire regulations.
• The unit must not be placed in areas where either the temperature or humidity
is outside the specified operating range.
• The unit should not be placed in close proximity to any equipment expected to
generate high levels of radio frequency signals (such as radio alarms) or units
generating high levels of electrical energy (such as large electric motors or
generators).
Chapter 2: Installation and configuration
10 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Docking station
The basic principle behind installation of the detector is that all wiring and
pipework is installed using a docking station. This is a convenient feature which
means that the detector can be dismounted or replaced without disturbing any
wiring or installed pipework.
The docking station inlet (sampling) ports and exhaust port is used to interface
with the pipe network. The inlet ports are used for aspirating the pipework
network. The exhaust port allows the detector exhaust air to be routed back to
the sampling area, when differing atmospheric pressures require this. Refer to
Figure 4 below.
Figure 4: Docking station
(1)
Cable gland
(2)
Exhaust port
(3) Sampling port
(4) Mounting screw holes
(5) Ground stud
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 11
Application
The detector is intended to provide small area incipient fire detection. This means
that it is suitable for the substantial range of applications typified by small
compartmentalised rooms, warehouse racking, or pieces of electronic or
electromechanical equipment where it is desirable to achieve individual incipient
fire reporting. In compartmentalised rooms, each compartment would normally
use an individual aspirating detector.
The detector is not intended to protect large areas, or to sample from areas
where there may be any difference in airflow rates or pressure differentials. If
detection in environments conforming to these descriptions is required, other
type detectors shoul d be us ed.
System design
Simple designs with short sampling pipes produce the best results. Complex
sampling pipe runs should be avoided with the detector. The use of T-branch
pipes is not recommended. The detector is fitted with two sampling pipe inlets as
standard. It is always preferable to use two shorter pipes as opposed to one
longer pipe. If two sampling pipes are used, care should be taken to keep the
sampling pipe lengths and number of sampling holes on each pipe within 10% of
the other. This can be verified using the PipeCAD system design software.
Unused sampling pipe inlets should be fitted with pipe bungs.
Maximum length of sampling pipe used with the detector is 100 m in still air with
20 sampling holes (or Capillary Remote Sampling Points). This will provide a
transport time from the end of the sampling pipe within 120 seconds. If the
protected area has airflow present, the maximum permitted sampling pipe length
will be reduced. In order for the installation to conform to EN 54-20, pi pes must
conform at least to EN 61386-1 Class 1131.
Note: PipeCAD pipe modeling software must be used when designing a pipe
network and verifying its performance.
Always locate the sampling points in positions to which smoke may reasonably
be expected to travel. For example, do not expect ceiling mounted sampling
points to operate satisf actor i l y if air flow from air-conditioning systems keeps the
cool smoke from an incipient fire from reaching ceiling level. In this instance, it is
usually better to locate the sampling pipe directly in the airflow (for example,
across the return air register of an air conditioning unit).
Note: There is no substitute for carrying out smoke tests prior to installation of
pipework to indicate suitable sampling point location.
No more than two air handling units may be protected with one detector. In this
application, ensure that the sampling pipe is raised clear of high velocity air in the
immediate vicinity of the air intake grill on standoff posts as shown in Figure 5 on
page 12.
Chapter 2: Installation and configuration
12 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Figure 5: Air handling unit in vicinity of the detector
(1)
Incorrect location
(2)
Detector
(3)
Sampling pipe
(4)
Standoff posts
(5) Correct location
(6) Detector
(7) AHU
(8) Equipment cabinet
(9) Direction of smoke
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 13
Below or above the ceiling installations
The detector is supplied with a docking station (as shown in Figure 4 on page
10). This allows the detector to sample from areas which may be at different air
pressure from the detector location. Typical uses are for air duct sampling and
allowing the installation of the detector in under-floor or ceiling voids or when
sampling from pieces of computer rel a ted equipment. See Figure 6 and Figure 7.
Figure 6: Installation of pipework above ceiling with exposed detector (piped exhaust)
(1)
Sampling pipe
(2)
Sampling hole
(3) Detector
(4) Exhaust pipe
(5) False ceiling
Chapter 2: Installation and configuration
14 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Figure 7: Installation of pipework above ceiling with detector mounted in ceiling void (no
exhaust piping)
(1)
Sampling pipe
(2) Sampling hole
(3) Detector
(4) False ceiling
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 15
Table 2 below contains a list of procedural guidelines for installation of the
detector.
Table 2: Procedural guidelines
Do
Don’t
Ensure that the
power and signal cables are
correctly connected before power ing up b y use
of cable identifiers or electrical continuity
checks. Incorrect connection could damage the
detector.
Ensure that cable of an appropriate approved
type is used for interconnection.
P
lace sampling points so that the detector will
be able to detect smoke at the earliest
opportunity.
Ensure that the detector exhaust is in an area
with the same atmospheric pressure as the
sample pipes, either by placing the detector
physically in the prot
ected area or by leading a
pipe from the detector exhaust to the protected
area.
Ensure that the environment of the protected
area is within the environmental operating
parameters of the detector.
Close unused pipe inlet ports on the detector to
ensure opt
imal operation.
Set the appropriate ClassiFire alarm factor for
the area to be detected.
Set the detector
address switches correctly
when used in a network.
Ensure
that the detector is properl y grounded.
Drop the detector.
Install detectors in damp or exposed areas.
Remove or connect boards when the detector is
powered up.
Connect internal 0 volt terminals to local earth.
Attempt to reuse dust separator (filter)
cartridges once removed.
Attempt to adjust or alter detector settings other
than via the user-programmable functions. Any
attempts to adjust the laser potentiometer are
detectable and will void the warranty on the
product.
Place the detector near high power RF sources.
Place the detector so close to other equipment
that there is insufficient room to access and
change the dust separator (filter) or access the
RS-232 connector.
Use sampling pipe of less than 27 mm (1 inch)
outside diameter without a suitable 27 mm (1
inch) pipe adapter. It is important that there are
no leaks where the pipe connects to the
detector.
Use excessive force when fitting sampling pipes
as this may damage the detector.
Installation
Mechanical installation
The docking station is connected to the installed sampling pipework and fixed to
the mounting surface using three screws of a type appropriate to the mounting
surface. Ensure that the sampling and exhaust pipes are securely seated in the
pipe ports before securing. If using a piped exhaust docking station, be sure that
the sampling and exhaust pipes are fitted into the relevant ports as shown in
Figure 4 on page 10.
Removing the front cover
To remove the front cover, unfasten the six attachment screws on the front of the
unit. The cover may then be removed.
Chapter 2: Installation and configuration
16 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Electrical installation
The detector is supplied with removable terminal blocks (Refer to Figure 3 on
page 6). These may be removed from their sockets by lifting them up at right
angles to the circuit board.
Take note of the orientation of each terminal block and its function be fore
removing it. It may also be beneficial to mark the connection wires with suitable
identification labels or colored rings to aid in the connection process.
Each detector is supplied with three RF suppression ferrite rings. To ensure
compliance with all relevant EMC requirements, the conductors of each cable
should be wound once around a ferrite as shown here before entering the
relevant connector.
Note: Both power conductors and relay conductors should be on a separate
ferrite, but different forms of signal conductor (e.g. RS-485) can share the same
ferrite.
There should be about 30 mm (1-1/4 in.) of wire between the end of the ferrite
and the terminal block to give adequate stress relief. To achieve this, it is
necessary to strip back the cable screen approximately 130 mm (5 in.). The
screen should be terminated under the cable gland cap as shown in Figure 8
below.
Figure 8: Looping relay connection wires around a suppression ferrite
WARNING: Electrocution hazard. All connections should be made with the
power turned off.
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 17
Power supply connections
The power supply cable should be the shielded (screened) type and should be
led through the metal cable gland provided, leaving about 35 mm (1-1/4 in.) of
the cable extending from the bottom of the cable gland. Depending on the type of
cable used, it may be necessary to increase the diameter of the cable with
sleeving or insulating tape to ensure that the cable is firmly held when the cable
gland is fully tightened .
Note: It is important to be aware of the orientation of the terminal block before
removing it.
To connect the power supply:
1. Remove the detector front cover, and then detach the power supply terminal
block, located at the top left inside the detector. (Refer to Figure 2 on page 5
for a photograph of the detector with the front cover removed. Refer to
Figure 9 below for a detailed photograph of the power supply terminals.)
2. Connect 0 V and +24 VDC to the 0V and 24V screw terminals respectively.
3. Connect the shielded (screened) wire to the ground stud on the docking
station.
4. Connect a second wire from the Earth terminal to the docking station ground
stud. Figure 4 on page 10 shows the location of the ground stud for both
types of docking stations.
5. Connect the ground wires to the ground stud.
6. Replace the terminal block with the same orientation as when removed.
Figure 9: Detector power supply terminals
Chapter 2: Installation and configuration
18 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Signal connections
To connect the signal wire:
1. Lead a suitable wire type (RS-485 cable 9841, 120 ohm shielded (screened)
twisted pair or equivalent) through the second cable gland.
2. Tighten it into position with approximately 35 mm (1-1/4 inch) of cable from
the bottom of the cable gland.
3. Remove either the three-way terminal block next to the power supply socket
(if connecting the detector to a SenseNET system) or the four-way Bus
terminal block (if connecting the detector to an alarm panel in conjunction with
the APIC addressable bus card). Refer to Figure 10 below for an illustration of
the terminals and “Setting the detector address” on page 22 for details on
addressing.
Figure 10: APIC address and RS-485/SenseNET terminals
(1) APIC address terminal
(2) RS-485 / SenseNET terminals
For example, in a networked system using screened cable, connect the screen
wires to the SCN terminal, Bus A wires to the A terminal and Bus B wires to the B
terminal.
If the detector is in the middle of a networked chain (with input and output
connections) it may be more convenient to link the common Bus A, Bus B, and
screen wires to single A, B and screen wires for linking to the terminal block.
Figure 11 on page 19 shows the power and signal connections to the docking
station for connection to a single network cable.
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 19
Figure 11: Power and signal conn ections to the docking station
(1)
Power supply shielded wire to ground stud
(2)
Power supply 0V wire
(3)
Power supply +24V wire
(4) Wire from earth terminal to ground stud
(5) RS-485/SenseNET Bus s hi elded w ire
(6) RS-485/SenseNET Bus A wire
(7) RS-485/SenseNET Bus B wire
Chapter 2: Installation and configuration
20 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Relay connections
The detector includes a Fire relay (corresponding to the Fire 1 alarm level), which
closes on alarm, and a general Fault relay, which opens on any fault condition or
on power-down (see Figure 12 below). The relays are of the volt-free type, with a
maximum current capacity of 500 mA at 30 VDC. Connect the screen of the relay
cables to the ground stud of the detector.
Figure 12: Fault and Fire relay contacts
(1) Fault relay contacts
(2) Fire relay contacts
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 21
Interfacing with fire alarm panels
Because of the flexible nature of the detector and the many possible
configurations, there are many options for interfacing the detectors to the fire
panel. The detector provides the following methods of interfacing with fire alarm
panels:
• To conventional fire alarm panels using the detector’s Fire and Fault relay
contacts
• To addressable fire alarm panels via Addressable Programmable Interface
Cards (APICs)
APICs, which can be mounted inside the detector, may simplify installation when
connecting to addressable signaling line circuits (SLC). The APIC used is
completely dependent on the SLC protocol, and therefore, the make and model
of the fire alarm panel.
WARNING: Incompatible APIC panel combinations may result in a non-
operational system which may fail to perform during an event, with resultant loss
of life and/or property.
When the interface is set to a single address mode, the card appears as a single
address on the SLC, and the detector status is read from that address.
Connecting the detector to an APIC
The APIC is fitted to the four mounting studs on the detector PCB using the
supplied screws as shown Figure 13 on page 22.
The connections to the fire panel are made using the BUS L1 and H1 (bus 1
input and output) and the BUS L2 and H2 (bus 1 input and output) terminal
connectors shown in Figure 10 on page 18.
The settings that need to be made are on the APIC address DIP switches. Both
switches (SW1, SW2) must be set to the same address.
Note: Some protocols may not support all the available alarm levels and fault
reporting is usually a general fault with no detailed fault information. Please
consult the specific APIC protocol documentation for more information.
Chapter 2: Installation and configuration
22 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Figure 13: APIC connections (EN/UL certified models)
(1) Mounting studs (4X)
(2) APIC Interface connection
(3) APIC address switch (2X)
(4) Internal cover (UL certified models only)
Setting the detector ad dress
In order to identify itself to the PC command module or fire panel, each detector
needs to have a unique address ranging from 1 to 127. The detector address is
set on DIP switch SW1 , at the bottom left of the opened detector on the main
circuit board. The switch settings are up for 1 and down for 0, and the detector
address is set as a 7-bit binary code (switch 8 equates to a value of 128 and so
is outside the usable address range). Refer to Figure 2 on page 5 for the location
of detector DIP switches.
Figure 14 shows a sample DIP switch setting.
The address equates to 11000110 in binary, or:
(1 x 1) + (1 x 2) + (0 x 4) + (0 x 8) + (0x 16) + (1 x 32) + (1 x 64) + (0 x 128) = 99
The full range of available addresses and their relevant switch settings are
provided in Table 3 on page 23 for reference.
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 23
Figure 14: Sample DIP switch settings
Address table
Addresses chosen for detectors do not have to be consecutive or in a given order
so long as they are all differen t. Table 3 below pr ovi des the addr es s table for
detectors.
Table 3: Address table
Address
1 2 3 4 5 6 7 8
65 1 0 0 0 0 0 1 0 1 1 0 0 0 0 0 0 0 66 0 1 0 0 0 0 1 0 2 0 1 0 0 0 0 0 0 67 1 1 0 0 0 0 1 0 3 1 1 0 0 0 0 0 0 68 0 0 1 0 0 0 1 0 4 0 0 1 0 0 0 0 0 69 1 0 1 0 0 0 1 0 5 1 0 1 0 0 0 0 0 70 0 1 1 0 0 0 1 0 6 0 1 1 0 0 0 0 0 71 1 1 1 0 0 0 1 0 7 1 1 1 0 0 0 0 0 72 0 0 0 1 0 0 1 0 8 0 0 0 1 0 0 0 0 73 1 0 0 1 0 0 1 0 9 1 0 0 1 0 0 0 0 74 0 1 0 1 0 0 1 0 10 0 1 0 1 0 0 0 0 75 1 1 0 1 0 0 1 0 11 1 1 0 1 0 0 0 0 76 0 0 1 1 0 0 1 0 12 0 0 1 1 0 0 0 0 77 1 0 1 1 0 0 1 0 13 1 0 1 1 0 0 0 0 78 0 1 1 1 0 0 1 0 14 0 1 1 1 0 0 0 0 79 1 1 1 1 0 0 1 0 15 1 1 1 1 0 0 0 0 80 0 0 0 0 1 0 1 0 16 0 0 0 0 1 0 0 0 81 1 0 0 0 1 0 1 0 17 1 0 0 0 1 0 0 0 82 0 1 0 0 1 0 1 0 18 0 1 0 0 1 0 0 0 83 1 1 0 0 1 0 1 0 19 1 1 0 0 1 0 0 0 84 0 0 1 0 1 0 1 0 20 0 0 1 0 1 0 0 0 85 1 0 1 0 1 0 1 0 21 1 0 1 0 1 0 0 0 86 0 1 1 0 1 0 1 0 22 0 1 1 0 1 0 0 0 87 1 1 1 0 1 0 1 0 23 1 1 1 0 1 0 0 0 88 0 0 0 1 1 0 1 0 24 0 0 0 1 1 0 0 0 89 1 0 0 1 1 0 1 0 25 1 0 0 1 1 0 0 0 90 0 1 0 1 1 0 1 0 26 0 1 0 1 1 0 0 0 91 1 1 0 1 1 0 1 0 27 1 1 0 1 1 0 0 0 92 0 0 1 1 1 0 1 0 28 0 0 1 1 1 0 0 0 93 1 0 1 1 1 0 1 0 29 1 0 1 1 1 0 0 0 94 0 1 1 1 1 0 1 0 30 0 1 1 1 1 0 0 0 95 1 1 1 1 1 0 1 0 31 1 1 1 1 1 0 0 0 96 0 0 0 0 0 1 1 0 32 0 0 0 0 0 1 0 0 97 1 0 0 0 0 1 1 0 33 1 0 0 0 0 1 0 0 98 0 1 0 0 0 1 1 0 34 0 1 0 0 0 1 0 0 99 1 1 0 0 0 1 1 0 35 1 1 0 0 0 1 0 0 100 0 0 1 0 0 1 1 0
Chapter 2: Installation and configuration
24 LaserSense 100 Aspirating Smoke Detector Installers Handbook
36 0 0 1 0 0 1 0 0 101 1 0 1 0 0 1 1 0
37 1 0 1 0 0 1 0 0 102 0 1 1 0 0 1 1 0
38 0 1 1 0 0 1 0 0 103 1 1 1 0 0 1 1 0
39 1 1 1 0 0 1 0 0 104 0 0 0 1 0 1 1 0
40 0 0 0 1 0 1 0 0 105 1 0 0 1 0 1 1 0
41 1 0 0 1 0 1 0 0 106 0 1 0 1 0 1 1 0
42 0 1 0 1 0 1 0 0 107 1 1 0 1 0 1 1 0
43 1 1 0 1 0 1 0 0 108 0 0 1 1 0 1 1 0
44 0 0 1 1 0 1 0 0 109 1 0 1 1 0 1 1 0
45 1 0 1 1 0 1 0 0 110 0 1 1 1 0 1 1 0
46 0 1 1 1 0 1 0 0 111 1 1 1 1 0 1 1 0
47 1 1 1 1 0 1 0 0 112 0 0 0 0 1 1 1 0
48 0 0 0 0 1 1 0 0 113 1 0 0 0 1 1 1 0
49 1 0 0 0 1 1 0 0 114 0 1 0 0 1 1 1 0
50 0 1 0 0 1 1 0 0 115 1 1 0 0 1 1 1 0
51 1 1 0 0 1 1 0 0 116 0 0 1 0 1 1 1 0
52 0 0 1 0 1 1 0 0 117 1 0 1 0 1 1 1 0
53 1 0 1 0 1 1 0 0 118 0 1 1 0 1 1 1 0
54 0 1 1 0 1 1 0 0 119 1 1 1 0 1 1 1 0
55 1 1 1 0 1 1 0 0 120 0 0 0 1 1 1 1 0
56 0 0 0 1 1 1 0 0 121 1 0 0 1 1 1 1 0
57 1 0 0 1 1 1 0 0 122 0 1 0 1 1 1 1 0
58 0 1 0 1 1 1 0 0 123 1 1 0 1 1 1 1 0
59 1 1 0 1 1 1 0 0 124 0 0 1 1 1 1 1 0
60 0 0 1 1 1 1 0 0 125 1 0 1 1 1 1 1 0
61 1 0 1 1 1 1 0 0 126 0 1 1 1 1 1 1 0
62 0 1 1 1 1 1 0 0 127 1 1 1 1 1 1 1 0
63 1 1 1 1 1 1 0 0
64 0 0 0 0 0 0 1 0
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 25
Connecting the detector to a SenseNET/RS485 detector network
Up to 127 detectors may be linked in a single SenseNET bus, supporting a total
length of wire between adjacent detectors of up to 1.2 km (3/4 mile). Use a 120
ohm screened twisted pair such as Belden 9841 24 AWG for all loop
connections. The RS-485 A and B wires should be taken through a ferrite
(supplied) with a single loop.
Figure 15 below shows an example of two detectors linked into a 127-detector
bus with a command mod ul e and a number of LaserSense HSSD-2 detectors. It
will be noted that whereas the LaserSense HSSD-2 detectors have t wo
input/output buses (1A/1B and 2A/2B), this detector has only a single such bus
(A/B). Therefore, each bus ter minal has an i n put and an output wire, compared
with a single wire in each terminal in the LaserSense HSSD-2.
Figure 15: Connecting the detector to a SenseNET network
(1) Command module
(2) Detector 1 (LaserSense HSSD-2)
(3) Detector 2 (LaserSense 25, LaserSense 100)
(4) Detector 3 (LaserSense 25, LaserSense 100)
(5) Detector 127 (LaserSense HSSD-2)
It is easy to join the input and output wires for each bus and screen connection
together and to solder or crimp a single wire or connecting ferrule to each wire
pair so that they are easier to fit into the screw terminals. If this is performed, it is
recommended that bare wire joints be insulated to prevent possible shorting of
the data bus, which will cause a drop-out of data on the SenseNET bus.
In the example shown in Figure 15 above, there could be a total length of RS-485
cable of up to 1.2 km (3/4 mile) between the command mo dul e and detector 2,
since these are all on a single bus. However, detector 2 is a LaserSense HSSD-2
which has a second communications bus (RS-485 bus 2) and an RS-485
repeater. This allow s a further total of 1.2 km (3/4 mile) of cable until the next
LaserSense HSSD-2 in the RS-485 loop.
Chapter 2: Installation and configuration
26 LaserSense 100 Aspirating Smoke Detector Installers Handbook
In the example shown in Figure 15 on page 25, if detectors 4-126 (not shown)
are all this type of detector, then the total length of wiring between Detectors 3
and 127 would be limited to 1.2 km (3/4 mile). However, each additional
LaserSense HSSD-2 detector wired up using both RS-485 buses would allow an
additional1.2 km (3/4 mile) of cabling to be added to the RS-485 loop.
Final installation
Once the power and signal connections are made, slide the detector body up into
the docking station and fasten it into position using the M4 pan head screws
provided. Slot the power and signal terminal blocks into the relevant sockets on
the detector PCB (which will only click fully home in the correct orientation).
Lastly, replace the detector cover using the six pan head screws provided. Refer
to Figure 16 below.
Note: The detector is designed solely for operation with the front cover securely
fitted using all six fixing screws.
Removing the detector
Removing the detector is the reverse of the installation process, leaving the
pipework and wiring connections installed in the docking station (as shown in
Figure 4 on page 10). See Figure 16.
Figure 16: Final installation of the detector
(1) Docking station attachment screws (3X)
(2) Cover attachment screws (6X)
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 27
Configuring the detector after installation
The detector progr am mable functions are accessed usi ng a PC (connected to
the detector) running either the Remote or SenseNET applications.
Remote
The Remote application enables the user to set up and configure the
programmable functions of one or more detectors or command module from a
computer connected via an RS-232 serial cable. See your Remote
documentation for more information.
SenseNET
The SenseNET applicatio n i s a vai l abl e for pu rch ase . SenseN ET
configures and
manages large networks of detector modules
from a computer connected via an
RS-232 serial cable or RS-485 converter interface.
See your SenseNET
documentation for more information.
Note: Since the detector does not include a front panel display or keypad,
programmable functions cannot be accessed via the unit itself.
Refer to “Connecting to a PC” on page 29 of this manual for instructions on how
to connect a PC to a the detector.
Chapter 2: Installation and configuration
28 LaserSense 100 Aspirating Smoke Detector Installers Handbook
List of programmable func ti ons
See your Remote or SenseNET documentation for more information on
programmable functions.
The following program mabl e fu ncti o ns are av ai l abl e:
•
Time and Date
•
Alarm Levels
•
Alarm Delays
•
ClassiFire Override (when optional
Input/Relay card is installed)
•
Alarm Factor
•
LDD Enable
•
FastLearn Enable
•
Auto FastLearn Enable
•
ClassiFire 3D
•
Demo Mode
•
Day Start/Night Start
•
Disable Day/Night Switching
•
Remote Functions (when optional
Input/Relay card is installed)
•
Programmed Isolate (discontinued
– see below)
•
Latching Alarms
•
Latching Faults
• Cascading Alarms
• Device Type (reference only)
• Firmware Version
• Run-time Hours
• Watchdog Count (reference only)
• Device Text
• Reference Detector
• Reference Enable
• Reference Level
• Reference Back-off
• Flow Rate (reference only)
• Flow High Limit
• Flow Low Limit
• Flow Fault Delay
• Access Code
• Chart Recording Rate
• Separator Condition (reference
only)
• Separator Change Date
• Factory Default
Programmed isolate (discontinued)
This function is no longer supported. To isolate the detector, use the Isolate
function.
WARNING
To avoid potential safety risks , do not use the Prog r ammed Is ol at e func ti o n.
If a detector is isolated (disabled) using Programmed Isolate, there is no visual
indication on the detector, command module, or control panel that the device is
not operational, and the function is not disabled automatically after 7 days.
The use of the Programmed Isolate function is entirely at the operator’s own risk.
Chapter 2: Installation and configuration
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 29
Connecting to a PC
To connect a single stand-alone detector to a PC, connect the PC’s serial port
directly to the detector’s 9-way RS-232 port. Connections for this cable are
shown in Figure 17 below.
Figure 17: RS-232 cable connections
(1) 9 pin female D connector
(2) 9 pin female D connector
Figure 18 below shows the RS-232 cable connection from the detector to a PC.
Figure 18: Detector serial port connection for a PC
(1) Serial port connection (to PC)
(2) Gender changer required (UL certified models only)
Chapter 2: Installation and configuration
30 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Event log
The Event log is a record of detector events such as faults, alarms, and functi on
changes. It is stored inside an operating detector and is updated whenever an
event occurs. The event log is nonvolatile, which means that it is retained when
the detector is turned off. The last 200 detector events may be stored.
An event is defined as:
• A change to any programmed function
• A signal received from an external controller such as the remote software,
APIC, or SenseNET
• A detector output level meeting or exceeding the Pre-Alar m, Aux ., Alarm, or
Alarm 2 alarm thresholds
• A start of day or night operation
• Demonstration Mode start
• FastLearn start or stop
• Power on or off
Events can either be viewed on a PC screen or downloaded to disk by running
the Remote application.
When the detector event log is full (200 events have been logged) and a new
event occurs, the oldest event in the log is deleted (first-in, first-out).
To download the event log, connect a PC to the detector serial port and run the
Remote or SenseNET applications.
LaserSense 100 Aspirating Smoke Detector Installers Handbook 31
Chapter 3
Commissioning
Summary
This chapter provides information to commission the detection system.
Content
Introduction 32
Commissioning checklist 32
Precommissioning preparation 34
Acclimation period 34
Transport time verification 34
Gross smoke testing 34
Chapter 3: Commissioning
32 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Introduction
This chapter covers the commissioning procedures for the detector.
Commissioning strategy initially depends upon the environment in which the
detector is installed. For instance, the test for a computer room (in a relatively
clean environment) would be very different from, say, a flour mill, with a high
level of airborne particulate content.
A widely accepted standard for computer rooms or EDP areas is British Standard
BS6266, equipment overheating at a stage well before combustion. To perform
the test electrically overload a 1 ‑
m etre length of P
gauge for one minute using an appropriate power supply. The detector has two
minutes from the end of the wire burn to give an alarm indication.
For areas with higher levels of background particulate matter testing
methodology would be similar to that of standard point detectors.
Commissioning should only be done by trained technicians in accordance with
applicable standards.
Commissioning checkl ist
The following brief checklist allows quick setup of the detector. This procedure
will be adequate for most standard installations.
To commission the detector:
1. Before powering up the detector, visually check all cabling to ensure correct
connection. If wire identification is not immediately clear (e.g. by use of
different colored wires or wire identification sleeves), an electrical check
should be made.
Caution: Ensure that all wiring connections are checked prior to pow er i ng up
the detector. Incorrect wiring of the detector will cause permanent damage to
the detector.
2. Connect the detector to a PC and set the detector address on the DIP
switches and APIC board (if applicable). Refer to “Interfacing with fire alarm
panels” on page 21 and “Setting the detector addr es s” on page 22” for more
information.
3. Power up the detector.
4. Ensure that all detectors in the network area are clear of troubles and alarms
(if applicable).
5. Launch either the Remote software or SenseNET program on the computer,
enter the access code, and then select the Function Settings window.
6. Verify that the time and date are correct on the Time and date tab.
7. Set an appropriate alarm fac tor , as shown in Table 4 on page 33, for the
protected environment on the Alarm levels and delays tab. The detector will
Chapter 3: Commissioning
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 33
automatically perform FastLearn for the new alarm factor (takes
approximately 15 minutes). The OK indicator on the front panel will begin to
flash. If using Day/Night switching, check that the Day Start and Night Start
times reflect site operations.
8. While the detector is still in FastLearn mode, place a checkmark next to the
Demo mode command at the bottom of the Alarm levels and delays screen.
The detector will enter demo mode (where it estimates its final sensitivity)
immediately after the FastLearn cycle has finished.
Note: Checking the Demo mode box only puts the detector into demo mode
while the detector is performing a FastLearn. It has no effect at any other
time.
9. Verify that the FastLearn has concluded (the OK indicator has stopped
flashing). With the detector in demo mode, perform any necessary smoke
tests, ensuring that the detector reacts appropriately, and let the smoke fully
dissipate.
10. Perform another FastLearn, this time NOT putting the detector into demo
mode. Do this by placing a checkmark next to the FastLearn Enable
command in the Alarm Levels and Delays screen. The OK indicator on the
front panel will begin to flash.
11. The detector will generate no alarms during the 15 minute FastLearn period
and, after this, the detector will operate at a reduced sensitivity for 24 hours
while ClassiFire acclimates to the protected environment and sets up
appropriate day and night sensitivity settings.
12. If desired, exit the Remote software or SenseNET software, power down the
PC and remove it from the detector serial port.
Table 4: Suggested settings for ClassiFire alarms
Alarm
factor
Sensitivity Probability of nuisance
alarm
Suggested protected area
0
Extremely High Once per year Semiconductor manufacturing clean room
1
High Once per 5 years Computer room
2
High Once per 10 years Non-smoking office
3
High Once per 50 years Clean factory
4
Medium Once per 1,000 years Warehouse
5
Medium Once per 5,000 years Warehouse with diesel trucks operating
6
Medium Once per 10,000 years Warehouse with diesel trucks operating
7
Low Once per 20,000 years Warehouse with diesel trucks operating
8
Low Once per 100,000 years Warehouse with diesel trucks operating
Chapter 3: Commissioning
34 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Precommissioning preparation
Commissioning should be performed after all construction has been completed
and cleaned of any lingering post-construction dirt. If ambient monitoring
conditions are recorded before the installation is cleaned up, they may not
accurately reflect actual normal operating conditions that need to be used as
reference data for follow -up maintenance procedures and tests.
Acclimation period
The detector will operate at a reduced sensitivity for 24 hours. ClassiFire will set
up the appropriate day and night sensitivity settings. All air handling units,
thermostats and other systems that can have an effect on the operating
environment should be turned on to simulate normal operating conditions as
closely as possible. After approximately one week of monitoring time (depending
on chart log recording rate), download the detector event log to a PC from the
RS-232 port using a serial cable.
Transport time verification
The maximum transport time verification test is the measure of the amount of
time it takes for the detector to respond to smoke that enters the pipe at the
sampling point furthest from the Detector. The results of this test and the
calculated maximum transport time from PipeCAD must be recorded on the
checksheet. Measured transport time less than the calculated time is acceptable.
To measure the maximum transport time of the system:
1. Determine the furthest s ampli ng poi nt from the detector.
2. Allow test smoke to enter the pipe at the furthest sampling point.
3. Record the amount of time for the detector to respond. This is the actual
maximum transport time.
Gross smoke testing
The gross smoke test is a measurement of the amount of time elapsing from the
activation of the smoke generating medium, until Pre-Alarm and Alarm is
reached. This test should be repeated at least three times with consistent results.
Recommended smoke generating medium is simulated smoke or wire burner.
LaserSense 100 Aspirating Smoke Detector Installers Handbook 35
Chapter 4
Troubleshooting
Summary
This chapter provides information to troubleshoot the detection system.
Content
Troubleshooting the de tec tor 36
Chapter 4: Troubleshooting
36 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Troubleshooting the detector
This chapter provides some possible solutions if a problem should occur with
your detector. If the problem is not addressed in this chapter or, if after
performing the suggested actions, the problem persists, contact Technical
Support.
Table 5: Troubleshooting guide
Problem
Solution/Corrective Action
Nuisance alarms
occur too often
Check that the ClassiFire alarm factor setting is appropriate for the normal
working environment of the protected area.
Check that the detector is not in demo mode. This can be ascertained by
viewing the event log and checking that the entry demo mode has a higher
log entry number than the most recent FastLearn start and FastLearn end
entries. Note: Remember that the log entries are in reverse order, with the
most recent entries appearing first. If the log shows that demo mode was
invoked during the last FastLearn period, start a new FastLearn and allow
it to complete its 24-hour cycle.
From the event log, check that 24 hours have elapsed since the last
FastLearn end entry.
Check that day-
night switchover times are appropriately set to reflect active
and nonactive periods.
Elevated
smoke
levels do not
generate alarms
Check that detector is not isolated or in FastLearn (if Isolated, the Fault
light will be lit; if in FastLearn, the OK light will flash).
Check that the detector sampling points are in the smoke stream.
Check that sampling pipes are firmly and cleanly seated in their ports and
undamaged.
Check that the correct ClassiFire alarm setting has been set.
Check that the detector has either had a 24-hour learning period or that it
has been placed in demo mode.
Low mean output
Check that the dust separator (filter) cartridge does not require changing
(refer to “Replacing the dust separator cartridge” on page 42 for details)
and that the air plenum chamber is clean. The chamber may become
clogged when, for example, heavy building activity has occurred near the
sampling pipes. If so, the chamber may require factory service. The
detector is not designed to handle large quantities of coarse debris and
dust.
Detector sensitivity
varies over time
There are many reasons why particle densities may vary, and the
ClassiFire system is designed to automatically
compensate for this in order
to reduce the likelihood of nuisance alarms due to normal variations in
background smoke density. Within limits set by the ClassiFire alarm factor,
this is a normal part of the detector‘s operation.
Flow fault errors
These occur when the airflow rate into the detector exceeds the
preprogrammed parameters. As the detector “learns” the flow setup from
the initial installation, this usually means that there has been some change
in conditions.
If the detector input is sampled fro
m one area and the exhaust is in another
area with different pressure (e.g., the detector is in a roof space and
sampling from an enclosed room), this may lead to flow faults. In this case,
it would be necessary to lead a pipe from the exhaust to the prote
cted area
to ensure nominal flow.
Chapter 4: Troubleshooting
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 37
Problem
Solution/Corrective Action
Low Flow error
message
Check that the pipe is not blocked.
If the pipe is unused, check that the flow sensor for this pipe has been
disabled.
Check that the low flow fault threshold is not set too high.
In the case of intermittent fault indications, try increasing the flow fault
delay time.
High Flow error
message
Check that the pipe is seated in the inlet and is not broken or cracked.
Check that installed pipework is fitted with endcaps. PipeCAD pipe
modeling software prompts for the use of appropriate endcaps. Open bore
pipes are not recommended.
Check that the high flow fault threshold is not set too low.
In the case of intermittent fault indications, try increasing the flow fault
delay time.
Chapter 4: Troubleshooting
38 LaserSense 100 Aspirating Smoke Detector Installers Handbook
LaserSense 100 Aspirating Smoke Detector Installers Handbook 39
Chapter 5
Maintenance
Summary
This chapter provides scheduled and unscheduled maintenance procedures.
Content
Introduction 40
Scheduled maintenance 40
Maintenance procedures 41
Visual check 41
Gross smoke test 41
Transport time verification test 41
Detector sensitivity test 41
Cleaning the detector 42
Replacing the dust separator cartridge 42
Chapter 5: Maintenance
40 LaserSense 100 Aspirating Smoke Detector Installers Handbook
Introduction
This chapter contains maintenance instructions for the detection system. Thes e
procedures should be perform ed on a sch ed ul ed bas is . In t he event that system
problems are found during routine maintenance, refer to Chapter 4
“Troubleshooting” on p ag e 35. Failure to properly maintain the system may affect
the functioning of the sy s tem.
Scheduled maintenance
The scheduled maintenance of the system should be performed at an
established interval. The interval between performance of maintenance
procedures should not exceed any imposed regulations. (See NFPA-72 or other
local requirements.)
Local standards and specification requirements must be adhered to. A typical
maintenance plan is listed in Table 6 below.
Notes
It is prudent to disconnect or isolate the detector from the fire panel during
maintenance to prevent unintentional alarm activations.
The detector should be powered down during internal cleaning (use an air duster
can or dry air gun).
Table 6: Maintenance plan
Step
Procedure
1
Check detector, wiring and pipework for damage
2
Check original design is still valid, e.g. changes due to building upgrades
3
Check detector for contamination and clean if necessary
4
Check maintenance logs for issues and rectify as appropriate
5
Check transport
times against original records: significant increases or decreases
in transport times may imply damaged pipes or sampling holes that need clearing
6
Isolate detector from fire panel if required
7
Smoke test to check detector operation and Alarm relay connection
8
Simulate a fault to check the Fault relay and connection
9
Complete and file maintenance records
10
Reconnect detector to fire panel if required
Chapter 5: Maintenance
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 41
Maintenance procedures
The following paragraphs outline general scheduled maintenance procedures to
be performed on an “as necessary” basis.
Caution: Risk of equipment damage. Always turn the power off before servicing
the detector.
Visual check
The visual check must be performed every six months. This check is to ensure
pipe network integrity.
To perform the visual check, observe the entire piping network and check for
abnormalities in the pipes, including any breaks, blockages, crimps, etc.
Gross smoke test
The gross smoke test is a Go/No-Go test which ensures that the detector
responds to smoke. This test must be performed at system commissioning and
every year thereafter. To perform this test, smoke must be introduced into the
last sampling hole in each branch of the pipe network and the proper response
must be verified by the detector. Smoke from a punk or cotton wick may be used.
Note: For cleanroom applications, consult with supplier for gross smoke test
methods.
Transport time verifi cati on te s t
The maximum transport time of the pipe network must be measured and
compared to the recorded transport time at commissioning. (Refer to “Transport
time verification” on page 34 of this manual for test details.) The transport time
verification test must be done at commissioning and every year thereafter.
Detector sensitivity test
The detector sensitivity test must be performed within one year of installation and
every alternate year thereafter.
Example:
• Year-one check
• Year-three check
• If years one and three are OK, go to five-year interval.
The detector employs a self-monitoring , aut o mati c all y-adjusting calibration for the
system. The inspection only requires a periodic visual inspection for a detector
fault indication and performing the detector sensitivity test function.
Chapter 5: Maintenance
42 LaserSense 100 Aspirating Smoke Detector Installers Handbook
If the self-monitoring feature of the system senses that the operation of the
detector head is outside its normal range, a trouble condition will be generated.
Cleaning the detector
The exterior of the detector should be clean e d as necessary. Clean the detector
with a damp (not wet) cloth. Do not use solvents as these may damage the front
panel label.
Caution: Do not use solvents to clean the detector. Use of solvents may cause
damage to the detector.
Replacing the dust separator cartridge
The only part that may require field replacement during servicing is the dust
separator (filter) cartridge.
After replacing the filter, the detector must be put into FastLearn mode to reset
the filter condition reading.
As dust contained in the dust separators may expose maintenance personnel to
a ‘Nuisance Dust‘ hazard as defined by the Control of Substances Hazardous to
Health (COSHH), it is strongly recommended that suitable masks and protective
clothing be worn when changing filters.
Note: Used dust separator cartridges are not intended for reuse and should be
discarded.
To replace the cartridge:
1. Remove the six attachment screws which fasten the unit’s front c ov er .
2. With the front cover removed, grasp the filter firmly and pull the filter out
(directly towards you).
3. Properly dispose of the used cartridge.
4. Insert the replacement filter cartridge such that the orientation of the Direction
of flow arrow printed on the cartridge corresponds to the arrow on the
“Direction of flow” label beside the filter slot.
5. Slide the cartridge all the way into place.
6. Replace the cover, and secure with all six fastening screws, and initiate a new
FastLearn routine.
Chapter 5: Maintenance
LaserSense 100 Aspirating Smoke Detector Inst allers Handbook 43
Figure 19: Location of dust separator cartridge
(1) Dust separator (filter) cartridge
Chapter 5: Maintenance
44 LaserSense 100 Aspirating Smoke Detector Installers Handbook
LaserSense 100 Aspirating Smoke Detector Installers Handbook 45
Glossary
°C
Degrees centigrade
°F
Degrees Fahrenheit
A
Ampere
AC
Alternating current
ADA
Americans with Disabilities Act
AH
Ampere hour
AHJ
Authority having jurisdiction
ARC
Automatic release circuit
ASD
Aspirating Smoke Detector
AWG
American wire gauge
APIC
Addressable protoc o l interf ac e card
CSFM
California State Fire Marshal
DACT
Digital alarm comm. transmitter
DC
Direct current
DET
Detector
EOLD
End of line device
EOLR
End of line resistor
FM
Factory Mutual
FSD
Full scale deflection
ft.
Feet
HSSD
High sensitivity smoke detector
Hz
Hertz (frequency)
in.
Inches
LCD
Liquid crystal display
LED
Light emitting diode
MEA
Materials and Equipm ent Acc eptanc e
Division of the City of New York
NAC
Notification appliance circuit
N.C.
Normally closed
NEC
National Electrical Code
Glossary
46 LaserSense 100 Aspirating Smoke Detector Installers Handbook
NFPA
National Fire Protection Association
N.O.
Normally open
NYC
New York City
PCB
Printed circuit board
pF
Pico farads
P/N
Part number
PSU
Power suppl y unit
RAM
Random access memory
SLC
Signaling line circuit
TB
Terminal block
UL/ULI
Underwriters Laboratories, Inc.
V
Volts
VAC
Volts AC
VDC
Volts DC
VRMS
Volts root mean square
LaserSense 100 Aspirating Smoke Detector Installers Handbook 47
Index
A
Acclimation period, 34
Addressing
Address table, 23
Setting the detector address, 22
Advisory messages, 4
Application, 11
C
Commissioning, 32
D
Detector components, 5
Docking station, 10
E
Event log, 30
F
Fire Alarm Panels
Interfacing, 21
I
Installation, 9
Electrical, 16
Mechanical, 15
M
Maintenance, 41
Cleaning the detector, 42
Replacing the dust separator (filter), 42
P
Power supply connections, 17
Programmable functions, 28
S
SenseNET
Connecting, 25
signal connections, 18
Software applications, 2
Specifications, 3
System design, 11
T
Terminal blocks, 6
Transport time verification, 34
Troubleshooting, 36
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