E2S BE*BG10E User manual

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INSTRUCTIONMANUAL(ATEX/IECEx)
BExBG15Eand BExBG10E
Flameproof/Increased SafetyXenonBeacons
ForuseinFlammableGasand DustAtmospheres
1)Introduction
TheBExBG15EandBExBG10Ebeaconsareflameproof
beaconswhicharecertified tomeettherequirementsofthe
ATEX directive94/9/ECandtheIECExscheme.The
beaconsproducesynchronisedvisualwarningsignalsand
can be usedinhazardousareaswherepotentiallyflammable
gasanddustatmospheresmaybepresent. TheBExBG15E
hasaflashenergylevelof15 joulesandtheBExBG10Ehas
aflashenergylevelof10 joules. Thebeaconscan be used in
Zone1andZone2areaswithgasesingroupsIIA,IIBand
IICandTemperatureClassificationsofT1,T2,T3andT4.
Thebeaconscan alsobeusedinthetemperature
classificationT5,iftheupperambienttemperatureis
restrictedto+40ºC. Theunitscan be usedinZone21 and
Zone 22areasforcombustibledustsandhavean IPratingof
IP66and asurfacetemperatureofT125ºCbasedonmaxTa
of+70°C.
2)Marking
All unitshavearatinglabel,whichcarriesthefollowing
important information:-
UnitType No. BExBG15Eand BExBG10E
Input Voltage: DC Units24Vor48Vor12V(10Jonly)
ACUnits230Vor115V
Codes: Exde T4forTa–50ºCto+70ºC
Exde T5forTa–50ºCto+40ºC
ExtDA21T125ºCbasedonmax. Taof+70ºC
CertificateNo’s KEMA00ATEX2006
IECExKEM10.0002
“Warnings” DONOTOPENWHENANEXPLOSIVE
GAS ORDUSTATMOSPHEREISPRESENT
COVERBOLTSCLASS A4-80
USE HEATRESISTINGCABLES ANDCABLEGLANDS
(Rated 110ºC)ATAMB. TEMPERATURES OVER40ºC
YearofConstruction/
SerialNo. i.e. 10 / 1DB53000001
3) TypeApprovalStandards
ThebeaconshaveECTypeExaminationandIECEx
certificatesissued byKEMAandhavebeenapprovedtothe
followingstandards:-
EN60079-0:2006 IEC60079-0:2004(Ed4) General Requirements
EN60079-1:2007 IEC60079-1:2007 (Ed6) Flameproof Enclosure‘d’
EN60079-7:2003 IEC60079-7:2001(Ed3)Increased Safety‘e’
EN61241-0:2006 IEC61241-0:2004(Ed1)DustGeneral
Requirements
EN61241-1:2004 IEC61241-1:2004(Ed1)DustEnclosurestD
4) Installation Requirements
Thebeaconsmustbe installedinaccordancewiththelatest
issuesoftherelevantpartsoftheEN60079 andIEC60079
standards–Selection,Installation andmaintenanceof
electricalapparatusforuseinpotentiallyexplosive
atmospheres(otherthanminingapplicationsorexplosive
processingandmanufacture):-
EN60079-14:2008 ElectricalInstallationsinHazardous
IEC60079-14:2007 (Ed4) Areas(otherthan mines)
EN60079-10:2003 Classification of HazardousAreas
IEC60079-10:2008 (Ed1)
Theinstallationoftheunitsmustalsobeinaccordancewith
anylocalcodesthatmayapplyandshouldonlybe carried
outbyacompetentelectricalengineerwhohasthe
necessarytraining.
5) Zones,Gas Group, Categoryand Temperature
Classification
TheBExBG15DandBExBG10Dbeaconshavebeencertified
Exde IICT4forTa–50ºCto+70ºCandExde IICT5forTa–
50ºCto+40ºCforgasandExtDA21IP66 T125ºCbasedon
max.+70ºCfordust. Thismeansthattheunitscan be
installed inlocationswiththefollowingconditions:-
Area Classification Gas:
Zone1
Explosivegasairmixturelikelytooccurin
normaloperation.
Zone2
Explosivegasairmixturenotlikelytooccur,
andifit does, it willonlyexist forashort time.
GasGroupings:
GroupIIA
Propane
GroupIIB
Ethylene
GroupIIC
HydrogenandAcetylene
TemperatureClassification:
T1
400
o
C
T2
300
o
C
T3
200
o
C
T4
135
o
C
T5
100
o
C
Amb. +40
o
C
0518
II 2G/D
Epsilonx:
Equipment Groupand
Category:
CEMarking
Notified BodyNo.
90º

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DocumentNo. IS2461-PIssue E13-01-10 Sheet2of 4
Area Classification Dust:
Zone21
Explosivedustairmixturelikelytooccurin
normaloperation.
Zone22
Explosivedust airmixturenot likelytooccur, and
ifit does, it will onlyexist forashort time.
IPRating: IP66 T125ºCTa< +70ºC
T110ºCTa< +55ºC
T95ºCTa< +40ºC
EquipmentCategory: 2G/D
AmbientTemperatureRange: -50°Cto+70°C
(T5=+40ºC)
6) Beacon Location and Mounting
Thelocationof thebeaconsshouldbemadewithdueregard
totheareaoverwhichthewarningsignalmustbe visible.
Theyshouldonlybefixedtoservicesthatcan carrythe
weight oftheunit.
SAFETYWARNING: TheBExBG15EandBExBG10E15and
10 joulebeaconsmustbe mounted withtheirflashdomeina
positionbetweenupright and90ºasshown.
Thebeaconsshouldbesecurelyboltedtoasuitablesurface
usingthe7mm diameterboltholesinthestainless steelU
shapedmountingbracket(seefigure1).Theanglecan then
beadjustedasrequired butthemountingrestrictionsmust be
observed(seeabove). Thiscan be achieved bylooseningthe
twolarge bracketscrewsintheside oftheunit, whichallow
adjustmentinstepsof 18°.Oncompletionoftheinstallation
thetwolarge bracketadjustmentscrewsonthesideofthe
unitmustbe fullytightened toensurethattheunitcannot
moveinservice.
SAFETYWARNING: Theflashdomeguardmustnotbe
removedfromtheunitatanytime.
7) Access to theFlameproofEnclosure
Fornormaloperationitwillnotbe necessarytogainaccess
totheflameproofchamber.Theonlytimethiswill be
necessaryiswhentheunitisbeingsettoflip-flopmodeor
thefittingof an endof linemonitoringresistoronDC units.If
accessisnecessaryremovethefourM6hexagonsocket
headscrews(see figure2)andwithdrawtheflameproof
covertakingextremecarenottodamagetheflameproof
jointsintheprocess.
Notethefour M6screwsareClass A4-80 stainlesssteel
andonlyscrewsofthiscategorycanbeusedonthe
beacons. Itisthereforeimportantthatthesescrewsand their
springwashersarekept inasafeplaceduringinstallation.
Oncompletionof theoutputmode settingorthefittingof the
endof lineresistor,theflameproof jointsshouldbe inspected
toensurethattheyareclean andthattheyhavenotbeen
damaged.Alsocheckthattheearthbondingwirebetween
thetwocastingsectionsissecureandthatthe‘O’ringsealis
inplace.Whenreplacingtheterminalchambersection
casting,ensurethatitissquarewiththeflameproofchamber
castingbeforeinserting.Carefullypushthesectioninplace
allowingtimefortheairtobe expelled.Onlyafterthesection
isfullyinplaceshouldthefourM6StainlessSteelA4-80
coverboltsandtheirspringwashersbeinserted and
tightened down.If thesectionjamswhileitisbeinginserted,
carefullyremoveitandtryagain.NeverusetheM6cover
boltstoforcethecoverintoposition.
8) Access totheIncreasedSafetyTerminal
Chamber
Toconnecttheinputcablestothebeaconitisnecessaryto
removetheterminalcovertogainaccesstothetermination
chamber.ToachievethisremovethefourM4hexagon
socketheadscrews(seefigure2).ThefourM4screwsand
theirspringwashersaregradeA4stainlesssteeland they
shouldbe keptinasafeplaceduringinstallation.Before
replacingtheterminalcoverensurethattheearthbonding
wirebetweenthetwocastingsissecureandthatthe‘O’ring
sealisinplace.InsertthefourM4hexagonscrewsandtheir
springwashersandtightenthemdown.
Figure2
FlameproofChamber
4off M6CoverScrews
ExternalEarth
Terminal
IncreasedSafety
Chamber
4off M4CoverScrews
Flashdome
Guard
Flameproof
Chamber
Terminal
Chamber
Terminal
Cover
S/SBracket
Figure1
90º

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5
9) PowerSupplySelection
Itisimportantthatasuitablepowersupplyisusedtorun the
beacons.Thepowersupplyselected musthavethe
necessarycapacitytoprovidetheinputcurrenttoall ofthe
beaconsconnected tothesystem.
Thefollowingtableshowsthe inputcurrenttakenbythe
variousbeacons:-
UnitType NominalI/PInput Max.
VoltageCurrentI/P
Volts
BExBG15E 24VDC 860mA 30V
BExBG15E 48VDC 480mA 58V
BExBG15E 230VAC170mA 253V
BExBG15E 115VAC360mA 126V
BExBG10E 12VDC 1.45A 15V
BExBG10E 24VDC 660mA 30V
BExBG10E 48VDC 340mA 58V
BExBG10E 230VAC110mA 253V
BExBG10E 115VAC250mA 126V
Theinputcurrentwill varyaccording tothe voltageinput
level.The currentlevelsshownabovearefornominalinput
voltage.The12V,24Vand48VDC unitshaveaconverter
circuitandthereforetheinputcurrentlevelwilldecrease
slightlyastheinputvoltage inincreased andwill increase
slightlyastheinput voltage isreduced.
Theabovetablealsoshowsthe maximumvoltagesatwhich
thebeaconscan be operated.
10) CableSelection
Whenselectingthecablesizeconsiderationmustbegivento
theinputcurrentthateachunitdraws(see tableabove),the
numberofbeaconsonthelineandthelengthofthecable
runs.Thecablesizeselected musthavethenecessary
capacitytoprovide theinputcurrenttoallofthebeacons
connected totheline.
SAFETYWARNING: IftheBExBG15EandBExBG10E
beaconsareusedathighambienttemperatures,i.e.over
+40ºC,thenthecableentrytemperaturemayexceed +70ºC
andthereforesuitableheatresistingcablesmustbe used,
witharated servicetemperatureofat least 110ºC.
11) Earthing
BothACandDCbeaconunitsmustbeconnectedtoagood
qualityearth.Theunitsareprovided withinternaland
externalearthingterminalswhicharebothlocated onthe
terminalchambersectionoftheunit(see figures2and3).
Whenusingtheinternalearthterminalensurethatthe
stainless steelM4flatwasherisbetweentheincoming earth
wireandtheenclosure.
Whenusingtheexternalearthterminalacablecrimplug
mustbe used.Thecablelugshouldbe locatedbetweenthe
twoM5stainless steelflatwashers.TheM5stainlesssteel
springwashermustbe fixed betweentheouterflatwasher
andtheM5stainless steelnuttoensurethatthecablelugis
secured against looseningandtwisting.
Theinternalearthbondingwireensuresthatagoodquality
earthismaintained betweentheflameproof chambercasting
andtheflameproofcovercasting.
12) CableGlands
TheBExBG15EandBExBG10Ebeaconshavedualcable
glandentrieswhichhavean M20 x1.5entry.Onlycable
glandsapproved forEx‘e’applicationsorbetter(i.e.Ex‘d’
applications,provided theyhaveanIPratingofIP54or
better) can beused.Theymustbesuitableforthe typeof
cabletobeusedandalsomeettherequirementsoftheEx
equipmentinstallationstandards EN60079-14:2008 /
IEC60079-14:2007.
Whenonlyonecableentryisusedtheotheronemustbe
closedwithan Ex‘e’blankingplug,whichmustbe suitably
approvedfortheinstallationrequirements.
Forcombustibledustapplications,thecableentrydeviceand
blankingelementsshall be intype ofexplosionprotection
increasedsafety"e"orflameproofenclosure"d"andshall
haveanIP6XratingaccordingtoEN60529:1992.
SAFETYWARNING: If thebeaconsareusedathighambient
temperatures,i.e.over+40ºC,thenthecableentry
temperaturemayexceed +70ºCandthereforesuitableheat
resistingcableglandsmustbe used,witharated service
temperatureofat least 110ºC.
13) CableConnections
Thecableconnectionsaremadeintoan ExeII approvedsix
wayterminalblockwhichislocatedintheIncreasedSafety
Areaterminalchamber(seefigure3).Seesection8ofthis
manualforaccesstotheterminalchamber. Whenwiringinto
IncreasedSafetyAreaterminalenclosures,youareonly
permittedtoconnectonewireintoeachwayontheterminal
block.Thereforeinorderthatbeaconscan be connectedina
parallelline,theterminalblockisfitted withapproved
connectingcombssothateachelectricalconnectionhastwo
terminalsinparallel.TerminalNo’s. 1and6must not be used
oneitherACorDC units.Cableswithacross-sectionalarea
ofupto4mm²can be connected totheterminalblock. Cables
thathaveasmall cross-sectionalareashouldbe fittedwith
crimpferules.
InternalEarth
Terminal
InternalBonding
WireTerminal
2off M20
CableEntries
Figure3
IncreasedSafety
TerminalChamber

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DocumentNo. IS2461-PIssue E13-01-10 Sheet4of 4
Thewiringconnectionstothebeaconsareasfollows:-
TerminalNo’s DC Units ACUnits
2and3-veN
4and5+veL
14) SynchronisedOperation
All BExBG15EandBExBG10Ebeaconsthatareconnected
tothesamesupplylinewill haveasynchronised flashrateat
oneflasheverysecond.
15) Flip-Flop Operation
Twobeaconscan be mounted closetoeachothertoforma
flip-flopoperation,wherethebeaconswill flashalternately.
Toachievethisonebeaconmustbeset sothatthefirstflash
isdelayedby½asecond.Tosetthismodeofoperationthe
flameproofchambermustbeaccessed,(seesection7).The
unitissetbyfittingapinheadertotheflip-flopheaderpins
ontheelectronicsboard,i.e.thetwoheaderpinsareshorted
together(seefigure4),ononeofthetwobeaconsbeing
used.Thetwobeaconswill then flashalternatelyevery½a
second.
16) End ofLineMonitoring (DC Units)
OntheBExBG15EandtheBExBG10EDCbeaconunits,dc
reverselinemonitoringcan beusedifrequired.All DCunits
haveablockingdiodefittedintheirsupplyinputlines.Anend
oflinemonitoringdiode oran endoflinemonitoringresistor
can be connectedacrossthe+veand–veterminalsinthe
flameproofchamber. Notemonitoring componentsmust
notbeconnectedtotheterminalblockintheIncreased
Safetyterminalchamber. Seesection7ofthisinstruction
manualforaccesstotheflameproofenclosure.Ifan end of
lineresistorisused itmusthaveaminimumresistancevalue
of3k3ohmsandaminimumwattage of0.5wattsora
minimumresistancevalueof500 ohmsandaminimum
wattage of2watts.
BExBG15EandBExBG10E15 and10Joule
BeaconsFlameproofEnclosure
Flip/ Flop
Terminal
Header
Figure4