© MEDC 2015
04/15
04/15
© MEDC 2015
© MEDC 2015
04/15
04/15
© MEDC 2015
© MEDC 2015
04/15
Duringmaintenance,ifthecover/lensassemblygreaseneedstobere-applied,aPFPE(Perfluoropolyether)
basedgreasesuchasKrytoxGPL203byDuPontorPerfluorolube22/6byPerformanceFluidsLtdshouldbe
used,topreventdamagetotheO-ring.
04/15
© MEDC 2015
© MEDC 2015
04/15
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The LD15 Beacon has been designed for use in potentially explosive atmospheres and harsh
environmental conditions. The glass reinforced polyester enclosures are suitable for use offshore
or onshore, where light weight combined with corrosion resistance is required.
The safety function of the Beacon is to provide an intermittent or permanent spherical visual
warning light when the correct voltage is applied to the unit. The Beacon is designed to operate
on a supply voltage of 24vDC with a tolerance of +/- 20%.
Under No fault (Normal) Operating conditions the LD15 Beacon will provide a spherical visual
warning light when required by the system, with no time delay or other faults
Under fault conditions the failure mode of the Beacon is a failure to provide a spherical visual
warning light. For the failure rate associated with this failure mode please refer to the table
below.
Assessment of Functional Safety
This Beacon is intended for use in a safety system conforming to the requirements of IEC61508.
Sira Test & certification Ltd has conducted a Failure Modes Effect and Diagnostic Analysis
(FMEDA) of the LD15 Xenon Beacon against the requirements of IEC 6150 8-2 using a Proof
Test Interval of 8760hrs.
The results are shown below and are based on Route 1H.
The Beacon is classed as a Type B device
Safety Function:
‘To provide an intermittent or permanent spherical visual warning light upon demand’.
Summary of Clauses
LD15 LED Beacon
LD15 LED Bea
con
Single Mode (1oo1)
Redundant Mode (1oo2)
2/7.4.2 and 2/7.4.4
Architectural constraints
Safe Failure Fraction (SFF)
Random hardware
failures: [h -1 ]
Random hardware
failures: [h -1 ]
!DD
!DU
!SD
!SU
Diagnostic coverage (DC)
PFD @ PTI = 8760Hrs
MTTR = 8 Hrs
Average freq. of dangerous failure
(high demand-PFH)[h-1]
Hardware safety integrity
compliance[
Systematic safety integrity
compliance
Systematic Capability
(SC1, SC2, SC3, SC4)
Hardware safety integrity achieved
04/15
Verdict
HFT=0
HFT=1
Type B
60%
60%
SIL 1
0.00E+00
3.44E-08
0.00E+00
3.45E-09
!
!
0.00E+00
5.16E-08
0.00E+00
5.19E-09
!
!
0.00%
0.00%
!
!
1.51E-04
1.51E-05
!
!
3.44E-08
3.45E-09
!
!
SIL 3
SIL 3
Route 1H
See report R56A31253B
SC2 (R56A31253B)
Limited to: SIL 1 (1oo1) & SIL 2 (1oo2) due to SFF value.
© MEDC 2015
Conditions of Safe use
The following conditions apply to the installation,operation and maintenance of the LD15.
Failure to observe these may compromise the safety intergrity of the Beacon
1. The user shall comply with the requirements given in this Safety manual in regard to
all relevant functional safety aspects such as application of use, installation, operation,
maintenance, proof tests, maximum ratings, environmental conditions, repair, etc.
2. If the Beacon is to be used on a Fire Alarm system it is recommended as per BS 5839
part 1 (eq. EN 54), that the product is tested at least once a week. In all other
applications it is strongly recommended to test the product at least once a year.
3. Selection of this equipment for use in safety functions and the installation,
configuration, overall validation, maintenance and repair shall only be carried out by
competent personnel, observing all the manufacturer’s conditions and
recommendations in the user documentation.
4. All information associated with any field failures of this product should be collected
under a dependability management process (e.g., IEC 60300-3-2) and reported to
the manufacturer.
© MEDC 2015
04/15
1.0 INTRODUCTION
2.0 MESSAGES ET AVERTISSEMENTS GÉNÉRAUX DE SÉCURITÉ
3.0 INSTALLATION
Généralités
REMARQUE :
04/15
© MEDC 2015
Accès aux bornes & au commutateur DIL
© MEDC 2015
04/15
4.0 FONCTIONNEMENT
DÉTAIL DU CÂBLAGE
Remarque :
04/15
© MEDC 2015
DISPOSITION GÉNÉRALE
5.0 ENTRETIEN
Pendantl'entretien,silagraissed'assemblagecouvercle/lentilledoitêtreré-appliquée,unegraissedetype
PFPE(perfluoropolyéther)commelaKrytoxGPL203deDuPontouPerfluorolube22/6dePerformanceFluids
Ltddoiventêtreutiliséesafind'éviterd'endommagerlejointtorique.
6.0 CONDITIONS SPÉCIALES POUR UTILISATION SÉCURISÉE
© MEDC 2015
04/15
7.0 CERTIFICATION/APPROBATIONS
Unités IECEx
([WE
Unités ATEX
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Ces unités bénéficient également des approbations suivantes :
04/15
© MEDC 2015
8.0 SÉCURITÉ FONCTIONNELLE
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Fonction de sécurité
‘« fournir une alarme visuelle sphérique intermittente ou permanente cyclique sur demande »
Résumé des clauses
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Verdict
Mode simple (1oo1)
Mode redondant (1oo2)
2/7.4.2 et 2/7.4.4
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04/15
Sélection de PTI en fonction de la contribution SIL%
PDFmoy
SIL 1 à cause de contraintes d'architecture
Balise LD15 à LED
Intervalle entre essais de sûreté (8 769 heures = 1 an)
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04/15
© MEDC 2015
1.0 EINFÜHRUNG
2.0 ALLGEMEINE SICHERHEITS- UND WARNHINWEISE
3.0 INSTALLATION
Allgemeines
HINWEIS:
© MEDC 2015
04/15
Zugang zu den Anschlüssen und dem DIL-Schalter
04/15
© MEDC 2015
4.0 BETRIEB
EINZELHEITEN DES ANSCHLUSSES
Hinweis:
© MEDC 2015
04/15
ALLGEMEINE WARTUNG
5.0 WARTUNG
FallsbeiWartungsarbeitendieSchmierungderAbdeckungs-/Linsenbaugruppeerneuertwerdenmuss,istein
SchmiermittelaufPFPE(Perfluorpolyether)-Basiswiez.B.KrytoxGPL203vonDuPontoderPerfluorolube22/6
vonPerformanceFluidsLtdzuverwenden,umeineBeschädigungdesO-Ringszuvermeiden.
6.0 SONDERBEDINGUNGEN FÜR SICHEREN EINSATZ
04/15
© MEDC 2015
7.0 ZERTIFIZIERUNGEN/ZULASSUNGEN
IECEx-Geräte
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ATEX-Geräte
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Diese Geräte haben außerdem die folgenden Zulassungen:
© MEDC 2015
04/15
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‘Zur Abgabe eines unterbrochenen oder konstanten rundumlaufenden Warnlichts bei Bedarf’.
Übersicht der Klauseln
/('/HXFKWH/'
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Urteil
Einzelmodus (1oo1)
Redundanter Modus (1oo2)
2/7.4.2 und 2/7.4.4
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© MEDC 2015
Auswahl von PTI versus SIL%-Kontribution
PDFavg
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LED-Leuchte LD15
Abnahmeprüfintervall (8769 Std. = 1 Jahr)
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04/15
1.0 INTRODUÇÃO
2.0 PRECAUÇÕES E ADVERTÊNCIAS GERAIS DE SEGURANÇA
3.0 INSTALAÇÃO
Informações gerais
NOTA:
04/15
© MEDC 2015
Acesso aos terminais e ao interruptor DIL
© MEDC 2015
04/15
4.0 FUNCIONAMENTO
DETALHE DA FIAÇÃO
Atensãodefuncionamentodaunidadeéindicadonorótulounidade.
Note:
04/15
© MEDC 2015
DISPOSIÇÃO GERAL
5.0 MANUTENÇÃO
Duranteamanutenção,casosejanecessárioaplicarnovamenteolubrificantedoconjuntodatampa/lente,
deve-seusarumlubrificanteàbasedeperfluoropoliéter(PFPE),comooKrytoxGPL203daDuPontou
Perfluorolube22/6daPerformanceFluidsLtd.,afimdeevitardanosaoO-ring.
6.0 CONDIÇÕES ESPECIAIS PARA A UTILIZAÇÃO SEGURA
© MEDC 2015
04/15
7.0 CERTIFICAÇÃO/APROVAÇÕES
Unidades IECEx
([WE
Unidades ATEX
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Estas unidades também dispõem das seguintes aprovações:
04/15
© MEDC 2015
6(*85$1d$)81&,21$/
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Função de segurança:
‘Para fornecer uma luz de aviso visual esférica intermitente ou permanente sob demanda.'
Resumo das cláusulas
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© MEDC 2015
Limitado a: SIL 1 (1oo1) & SIL 2 (1oo2) devido ao valor de SFF.
04/15
Seleção de PTI versus contribuição SIL%
PDF médio
SIL 1 devido a restrições arquitetônicas (SFF)
Sinalizador LED LD15
Intervalo de teste de prova (8769 horas = 1 ano)
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04/15
© MEDC 2015
© MEDC 2015
04/15
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