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Discovery Product Guide

MAN 3038

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Summary of Contents for MAN 3038

Page 1: ...Discovery Product Guide MAN 3038 ...

Page 2: ...ata 9 7 Ionisation Smoke Detector 10 7 1 Operating Principles 10 7 2 Technical Data 12 8 Carbon Monoxide Heat Multisensor Detector 13 8 1 Operating Principles 13 8 2 Technical Data 14 9 Carbon Monoxide Detector 15 9 1 Operating Principles 15 9 2 Technical Data 18 10 Heat Detector 19 10 1 Operating Principles 19 10 2 Technical Data 20 11 Mounting Bases 21 11 1 Technical Description 21 12 Manual Cal...

Page 3: ...19 Application of Discovery Detectors 28 20 Approvals 30 21 Acknowledgement 30 ...

Page 4: ...mmunications protocol which has been developed from the XP95 protocol but which differs in that it allows communication in three different modes Normal Read and Write to allow a more extensive exchange of information and commands than previous analogue addressable ranges In addition Discovery can store data in non volatile memory The Normal mode is identical to the XP95 protocol with the exception...

Page 5: ...e analogue value exceeds 55 irrespective of mode This simplifies the switching between response modes since the alarm threshold in the control panel can remain fixed at 55 and the alarm flag is valid in all modes The response mode which is selected through the protocol is stored in non volatile memory and will therefore be retained when the detector is powered down All Discovery detectors are fact...

Page 6: ... respond to transients and to step changes of smoke or heat This is seen in the minimum time to alarm given in individual detector specifications These times represent the time taken by the detector to reach the alarm condition when responding to a large step change in input 3 6 Interchangeability Any Discovery detector may be replaced by any other type in the range For example if a smoke detector...

Page 7: ...e A value which is less than 4 or greater than 30 results in a warning flag A value of zero results in a fault signal ft Compensation Graph The maximum compensation that can be applied is 31 If further drift occurs the analogue values will simply track the drift and the detector will become more sensitive Compensation values are stored in non volatile memory and will be retained even if detectors ...

Page 8: ... daylight blocking filter The IR LED emits a burst of collimated light every second In clear air the photodiode receives no light directly from the IR LED because of the angular arrangement and the chamber baffles When smoke enters the chamber it scatters light from the emitter IR LED onto the photo diode in an amount related to the smoke characteristics and density The photodiode signal is proces...

Page 9: ... connection internal 2 2KΩ resistance to positive Supply Voltage 17 28V DC Communication Protocol Apollo Discovery 5 9V peak to peak Ripple Voltage 2V peak to peak maximum at 0 1Hz to 100KHz Quiescent Current 300µA at 24V DC Power up Surge Current 1mA Maximum power up time 10s Alarm Current LED on 3 5mA Remote output characteristics Connects positive line through 4 5KΩ 5mA maximum Clean air analog...

Page 10: ...ller processes the two signals according to the mode selected When the detector is operating as a multisensor i e modes 1 3 and 4 the temperature signal processing extracts only rate of rise information for combination with the optical signal In these modes the detector will not respond to a slow temperature increase even if the temperature reaches a high level A large sudden change in temperature...

Page 11: ...flaming fires Mode 4 has lower than normal smoke sensitivity combined with high heat sensitivity This makes it suitable for applications in which a certain amount of fumes or smoke is considered normal Mode 5 has no smoke sensitivity at all but gives a pure heat detector response meeting the response time requirements for a Class A1R detector in the European standard EN54 5 2000 In this mode the d...

Page 12: ...Current 400µA at 24V DC Power up Surge Current 1mA Maximum power up time 10s Alarm Current LED on 3 5mA Remote output characteristics Connects positive line through 4 5KΩ 5mA maximum Clean air analogue value 23 4 0 Alarm level analogue value 55 Alarm Indicator 2 colourless Light Emitting Diodes LEDs illuminating red in alarm Optional remote LED Temperature range 40 C to 70 C Humidity 0 to 95 relat...

Page 13: ...positive The analogue voltage at the sensor electrode is converted to a digital format which is processed to provide an analogue value for transmission to the control panel when the device is polled The Discovery Ionisation Detector like all ionisation detectors has some sensitivity to air movement wind The extent to which the analogue value will change depends on the wind speed and on the orienta...

Page 14: ...e detectors in implementation of radiation standards published by the Nuclear Energy Agency of the Organisation for Economic Co operation and Development OECD 1977 There is no limit to the number of ionisation smoke detectors which may be installed in any fire protection system Storage regulations depend on local standards and legislation but in the UK up to 500 detectors may be stored in any prem...

Page 15: ...1mA Maximum power up time 10s Alarm Current LED on 3 5mA Remote output characteristics Connects positive line through 4 5KΩ 5mA maximum Clean air analogue value 23 4 0 Alarm level analogue value 55 Alarm Indicator 2 Light Emitting Diodes LEDs illuminating red in alarm Optional remote LED Temperature range 30 C to 70 C Humidity 0 to 95 relative humidity no condensation or icing Effect of Temperatur...

Page 16: ...oxide combined with moderate sensitivity to heat This gives a high overall sensitivity to both smouldering and flaming fires Mode 2 is set to report the presence of carbon monoxide only Mode 3 has moderate sensitivity to carbon monoxide combined with moderate sensitivity to heat and is used for general applications Mode 4 has lower than normal carbon monoxide sensitivity combined with moderate hea...

Page 17: ...p time 10s Alarm Current LED on 3 5mA Remote output characteristics Connects positive line through 4 5KΩ 5mA maximum Clean air analogue value 25 2 Alarm level analogue value 55 Alarm Indicator 2 Light Emitting Diodes LEDs illuminating red in alarm Optional remote LED Storage Temperature Continuous 10 to 30 C Operating Temperature Continuous 0 C to 50 C Transient 20 to 55 C no condensing or icing O...

Page 18: ...or to hydrogen or to high levels of alcohol vapour as emitted by some cleaning agents there is a requirement to detect fires involving flammable liquids CO fire detectors are particularly suitable for supplementing smoke detection when there is a deep seated smouldering fire risk a risk of fire starting in an enclosed space a likelihood of stratification taking place Carbon monoxide detectors may ...

Page 19: ...t for any given application See table below Drift Compensation In view of the inherent stability of CO cells there is no need for Discovery CO detectors to compensate for drift Discovery CO detectors are set to report a drift value of 16 Cell Test The Discovery carbon monoxide fire detector has a remote test feature which is used to verify that the electrochemical cell is fitted and that it is act...

Page 20: ... be stored before installation in clean dry conditions between 0 C and 20 C It should not be exposed to temperatures outside the range 40 C to 55 C or to organic vapours The electrochemical cell contained in this product is fitted into sockets on the printed circuit board to avoid damage to the cell do not remove it The electrochemical cell contains sulphuric acid in a relatively concentrated stat...

Page 21: ...alue 25 2 Alarm level analogue value 55 Alarm Indicator 2 Light Emitting Diodes LEDs illuminating red in alarm Optional remote LED Storage Temperature Continuous 10 to 30 C Transient 40 C to 55 C no condensation or icing Operating Temperature Continuous 0 C to 50 C Transient 20 to 55 C no condensing or icing Operating Pressure Suitable for installation up to 2 000m above sea level Operating Humidi...

Page 22: ...ur each of which is designed to be suitable for a range of application temperatures All modes incorporate fixed temperature response which is defined in the standard by the static response temperature The application temperatures and static response temperatures for all response modes are given in Table 6 In addition to the basic classification a detector may be given an R or S suffix The R suffix...

Page 23: ...Terminal Functions L1 and L2 supply in and out connections R remote indicator positive connection internal 2 2KΩ resistance to positive R remote indicator negative connection internal 2 2KΩ resistance to positive Supply Voltage 17 28V DC Communication Protocol Apollo Discovery 5 9V peak to peak Quiescent Current 400µA at 24V DC Power up Surge Current 1mA Maximum power up time 10s Alarm Current LED...

Page 24: ...ging and require clockwise rotation without push force to be plugged in Universal address cards known as XPERT cards are supplied with all bases Consult the coding guide in the installation instructions to determine which pips are to be removed from the card to give the correct address Lay the card on a flat surface pips down insert a screwdriver into the slot on the reverse of the pip to be remov...

Page 25: ...nel by transmission of a single bit in the communications protocol Call points respond by providing a value of 64 which corresponds to the alarm value The panel should recognise this response as a test signal and should not raise a general alarm The Discovery Manual Call Point incorporates an integral short circuit isolator together with a resettable element and a backbox for surface mounting as s...

Page 26: ...arity insensitive Loop Connections Terminal Block L1 ve and L2 ve supply in and out connections Operating Voltage 17 28V DC Communication Protocol Apollo Discovery 5 9V peak to peak Quiescent Current 100µA at 24V DC Power up Surge Current 1mA Maximum power up time 1s Alarm Current LED on 4mA Normal analogue value 16 Alarm State Value 64 Temperature Range 20 C to 60 C Humidity 0 to 90 relative humi...

Page 27: ...tput and one monitored input 3 channel Input Output Unit provides 3 relay outputs and 3 monitored inputs Mains Switching Input Output Unit switches machinery operating at 230V Output Unit provides one relay output Zone Monitor controls a zone of conventional detectors Switch Monitor monitors the operation of a switch Switch Monitor Plus monitors the operation of a switch also incorporates a time d...

Page 28: ...The sounder is set during commissioning to one of 7 levels of sound the highest level being nominally 90dB A At 60dB A the lowest level falls outside the scope of the standard EN54 It has been included to provide a very local warning for the use of personnel in particular environments such as nurse stations in hospitals Flexibility of group addressing In many installations a fire alarm must be rai...

Page 29: ... Sounder Cap 45681 293 Technical Data Specifications are typical and given at 23 C and 50 relative humidity unless specified otherwise Audio Visual Type Point type sounder beacon for fire detection and alarm systems for buildings Operating Voltage 17 28V d c polarity sensitive Protocol Pulses 5 9V Current consumption at 24V Switch on surge 1s 1 2mA Quiescent 350µA Device operated at maximum volume...

Page 30: ...anufacturer Features advantages These are identical to the Discovery Sounder Beacon Base but the Open Area Sounder Beacon is a wall mounted stand alone device that produces a higher sound output of up to 100dB A Product Description EN54 3 Discovery Sounder Beacon Red Open Area 58000 005AMP Discovery Sounder Beacon White Open Area 58000 007AMP Technical Data Specifications are typical and given at ...

Page 31: ...tecting small particle smoke and providing early warning of a fire but they must be used in an environmentally friendly way The optical heat multisensor is basically an optical smoke detector and will therefore respond well to the smoke from smouldering fires In response modes 1 3 and 4 however ie in the multisensor modes the detector also senses air temperature This temperature sensitivity allows...

Page 32: ...is clean at other times the optimum response mode will be different at different times of the day Outside working hours the sensitivity can be switched to a higher level to maintain maximum protection The Discovery multisensor is especially suitable for time related systems Because its response can be switched from a pure heat response to a sensitive multisensor smoke response it can be optimised ...

Page 33: ... FM and marine standards Discovery complies with the requirements of a number of European New Approach Directives such as the EMC Directive 89 336 EEC and the Construction Products Directive 89 106 EEC All Discovery products will comply with the marking requirements of the WEEE Directive 2002 96 EC 19 Acknowledgement The Discovery range of detectors and products are manufactured for Ampac by Apoll...

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