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ICAM by Xtralis

IAS-2 Product Guide

www.xtralis.com

21

6.3.3

Flow Sensitivity

This setting determines the system's responsiveness in reporting blocked sampling points or broken pipes.
The number of sampling points and fan speed are the main factors to consider for this setting.

The following table shows typical settings for a variety of standard fan speed and hole quantity combinations.
Other speed and hole combinations should be verified by testing during commissioning.

Table 6-3: Typical Flow Sensitivity Settings

Pipe Setup
(all 60 m lengths unless otherwise stated)

Recommended

Fan Speeds

Flow Sensitivity

5 or more sampling holes

1

6-9

9

3 to 4 sampling holes

6-9

7

2 sampling holes

6-9

5

Notes:

1. Please refer to Section 9 for upper limits to the number of sampling holes.

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Summary of Contents for ICAM IAS-2

Page 1: ...Xtralis ICAM IAS 2 Product Guide July 2010 Document Number 14942_05 Part Number 29301 ...

Page 2: ......

Page 3: ...pment damage Xtralis is not responsible and cannot be held accountable for any liability that may arise due to improper use of the equipment and or failure to take proper precautions Only persons trained through an Xtralis accredited training course can install test and maintain the system Liability You agree to install configure and use the products strictly in accordance with the User Manual and...

Page 4: ...Convention Description Caution This icon is used to indicate that there is a danger to equipment The danger could be loss of data physical damage or permanent corruption of configuration details Warning This icon is used to indicate that there is a danger of electric shock This may lead to death or permanent injury Warning This icon is used to indicate that there is a danger of inhaling dangerous ...

Page 5: ...codes and standards In these cases the local codes and standards must take precedence The information below was correct at time of printing but may now be out of date check with your local codes standards and listings for the current restrictions AS 1603 8 The performance of this system is dependent upon the pipe network Any extensions or modifications to the designed installation may cause improp...

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Page 7: ...on 13 5 1 Pipe Specification 13 5 2 Fixings 13 5 3 Holes 13 5 4 End Cap 13 5 5 Bends 14 5 6 Exhaust 14 5 7 Filters 14 5 8 Standard Configurations 15 6 Set up 17 6 1 Display Functions 17 6 2 User Functions 18 6 3 Set up Notes 20 7 Testing 23 7 1 Detectors 23 7 2 System 23 8 Maintenance 25 9 AS 1603 8 Listed Detectors 27 9 1 Sampling Pipe Network Design 27 10 Problem Solving 29 11 Specifications 31 ...

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Page 9: ...g pipe run Point detectors are wired directly into the signaling circuit connected to the monitoring fire alarm control panel Any alarms or faults derived from the analog or conventional point detector will be reported directly to monitoring fire panel through the signaling circuit for that detector The IAS 2 system provides airflow monitoring circuitry and an aspiration system that is configurabl...

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Page 11: ...and national regulations Remove the transparent cover using the special tool provided to unscrew the tamper proof fasteners Use the template provided to accurately position the holes then secure the unit to a suitable surface through the four corner fixing points Ensure that the correct fasteners are used for the type of surface that the unit is mounted on ...

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Page 13: ...circuit board for connection of the wiring remove the display detector mounting board which is held in place by the clear top cover The ribbon cable may be removed from the connector on the underside of the board to allow the board to be fully removed CAUTION Care should be taken when removing the board to ensure that the ribbon cable on the underside is not strained WARNING To prevent risk of ele...

Page 14: ...ng to the unit and allows the display and detectors to be removed during servicing by simply disconnecting the ribbon cable The loop circuit wiring can also be connected directly to the detectors if required Figure 3 3 Ferrite core for loop and relay lines The loop circuit wiring can also be connected directly to the detector mounting base if required Note A ferrite core is provided for EMC compli...

Page 15: ...ws provided Addressable loop or conventional circuit wiring can be connected to the point s with either of two methods l the wiring can be connected to the LOOP IN and LOOP OUT terminals on the main circuit board refer to Figure 3 1 Additionally the terminals on the point s must be connected to the detector terminals located in the center of the point mounts on the mounting board This is the prefe...

Page 16: ... both fault relays so a flow fault in either channel will produce a zone fault Legend 1 Display Detector Mounting Board 2 Main Circuit Board 3 Ribbon Connector 5 Detector 1 6 Detector 2 7 Terminating Resistor 9 Addressable Loop Conventional Circuit Figure 4 2 Wiring diagram for an IAS 2 system with two conventional detectors 4 3 3 Configuration with Units Connected in Series The schematic shows th...

Page 17: ...g diagram showing IAS 2 systems connected in series 4 3 4 Configuration with Analog Addressable Detectors The diagram shows the fault relays connected to the signalling circuit via interface modules Legend 1 Display Detector Mounting Board 2 Main Circuit Board 3 Ribbon Connector 5 Detector 1 6 Detector 2 8 Loop Interface Module 9 Addressable Loop Conventional Circuit Figure 4 4 Wiring diagram show...

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Page 19: ...he pipe The pipe shall be marked with descriptions such as FIRE DETECTION SYSTEM DO NOT PAINT in letters at least 5 mm high at intervals of 1 m or less Note The IAS 2 inlet ports are tapered to allow a push fit of the sampling pipe The pipes should be cut squarely to ensure a good airtight seal Solvent adhesive should not be used for this joint 5 2 Fixings The normal fixing methods are pipe clips ...

Page 20: ...he unit e g to reduce noise reduce risk of interference deliberate obstruction improved environmental protection etc Pipe of the same specification as the sample runs should be used and its length limited to a maximum of 10 m 33 ft to avoid significant reduction in the airflow Care should be taken to position the new exhaust outlet where it cannot be accidentally or deliberately blocked 5 7 Filter...

Page 21: ... have equal size and number of holes The use of additional bends as described in Section 5 5 will have a minimal effect on performance response time Note Please see the table in Section 9 for AS 1603 8 hole and pipe length limits for certified detectors These limits describe pre tested and acceptable system design values for the standard pipe configurations described in this section for each type ...

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Page 23: ...the following functional LEDs 1 BARGRAPH of AIRFLOW SPEED 2 3 4 AIRFLOW OK HIGH AIRFLOW LOW AIRFLOW The following LEDs are common to both channels 5 POWER ON 6 GENERAL FAULT Mains PSU Option Only 7 MAINS FAILURE Mains PSU Option Only 8 BATTERY LOW Mains PSU Option Only 9 FAN FAULT 10 CODE ENTRY 11 UNLOCK ...

Page 24: ...d POWER LED flashes Set sensitivity of bar graph in Channel 1 to changes in airflow velocity FLOW1 OK flashes Set sensitivity of bar graph in Channel 2 to changes in airflow velocity FLOW2 OK flashes Select the BARGRAPH 1 LED segment above which the FLOW HIGH LED will be illuminated FLOW HIGH 1 flashes Select the BARGRAPH 1 LED segment below which the FLOW LOW LED will be illuminated FLOW LOW 1 fl...

Page 25: ...ICAM by Xtralis IAS 2 Product Guide www xtralis com 19 Pressing the SELECT key for longer than 1 second when the unit is unlocked will cause the unit to revert to normal operating mode ...

Page 26: ...rrent consumption figures in the specifications prior to setting this value Fan speeds 3 and below should not be used for standard configurations 6 3 2 Flow Delays By default an increase or decrease in flow beyond the FLOW HIGH and FLOW LO limits will result in a FLOW FAULT after a delay of approximately 15 seconds Once the flow is returned to a normal level the fault condition will be cleared wit...

Page 27: ...wing table shows typical settings for a variety of standard fan speed and hole quantity combinations Other speed and hole combinations should be verified by testing during commissioning Table 6 3 Typical Flow Sensitivity Settings Pipe Setup all 60 m lengths unless otherwise stated Recommended Fan Speeds Flow Sensitivity 5 or more sampling holes 1 6 9 9 3 to 4 sampling holes 6 9 7 2 sampling holes ...

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Page 29: ...flow test may also be performed at this time as the detector should report a low flow fault with the top cover removed 7 2 System The installed system must be checked with the top cover securely fitted As a minimum smoke should be introduced to the furthest sampling point from the IAS 2 system on each branch of the pipe The choice of smoke source is dependant on the installation but in all cases t...

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Page 31: ...ure that the operator is safely earthed so as to prevent electro static discharge ESD damage to the unit 1 Remove the transparent cover using the special tool provided to unscrew the tamper proof fasteners 2 Lift out the foam filter element from the filter tube tweezers or long nosed pliers are recommended for this operation 3 Fit a new filter element ensuring that the filter is not compressed dur...

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Page 33: ...Pipe Network Design The IAS 2 supports a number of pre engineered pipe network designs These designs incorporate suction pressure and transport time considerations For setup details refer to the Xtralis ICAM Pipe Network Design Guide Document 14966 CAUTION The performance of this system is dependent upon the pipe network Any extensions or modifications to the designed installation may cause improp...

Page 34: ...e optional The distance between an endcap hole and the next hole is less than or equal to 10 meters Refer to the holes labelled A in Figure 9 1 Sampling Holes The distance between sampling holes is less than or equal to 10 meters Refer to the holes labelled B F in Figure 9 1 Figure 9 1 Predesigned Pipe Network Example ...

Page 35: ...x fully sealed Ensure flow calibration procedure has been carried out 6 2 Ensure filters are clean Section 8 Maintenance Flow reading on Bargraph display moves erratically Decrease Flow sensitivity setting and re calibrate air flows Section 6 2 User Functions Flow reading on Bargraph unresponsive to broken blocked pipe Increase Flow sensitivity setting and re calibrate air flows 6 2 Detector s unr...

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Page 37: ... Environmental Protection IP65 with exhaust fitted IP23 without Operating Temperature 10 to 60ºC Operating Humidity 10 to 95 RH non condensing Approvals AS 1603 8 by CSIRO under ActivFire scheme Approvals EN54 20 by VdS G206066 AS 1603 8 by CSIRO under ActivFire scheme Approvals EN54 20 by VdS Gxxxxx Certification EN61000 6 3 2001 A11 2004 EMC EN60950 1 2006 Safety CPD 89 106 EEC 11 1 Typical Supp...

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