E2S BExTS110D User manual

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DocumentNo. IS2427-PIssueB17-04-02Sheet1of 4
INSTRUCTION MANUAL(ATEX)
BExTS110DFlameproofSontel
1)Introduction
TheBExTS110Dis asecondgenerationflameproofSontel
telephonesounderwhichiscertifiedtothe European
Standards EN 50014:1992andEN50018:1994 andmeets
the requirementsoftheATEX directive94/9/EC.TheSontel
producesaloud audiblesignalwhentriggeredbyatelephone
ringingsignal andcan beusedin hazardousareaswhere
potentially flammable atmospheres may be present. Thirty-two
different soundscan be selected by internal switches (seetone
table on Page4). TheBExTS110D unit producesoutputlevels
in the110dB(A)range.Theunit can be usedin Zone 1 and
Zone2areaswith gasesingroupsIIA, IIBandIICand
temperature Classificationsof T1,T2, T3andT4.
2)Marking
Allunitshavearating label, whichcarriesthe following
important information:-
UnitType No. BExTS110D
Input Voltage: 230V or110Vor 115V
Code: EExdIICT4(Tamb.–50to+55°C)
CertificateNo. KEMA99ATEX6312
Warnings:DONOTOPENWHENANEXPLOSIVE
GASATMOSPHEREISPRESENT
COVERBOLTSCLASS A4-80
USEHEATRESISTINGCABLES ANDCABLEGLANDS
(Rated 95ºC)ATAMB.TEMPERATURES OVER40ºC
Year of Construction/
Serial No. i.e. 02 / 1TS23000001
3) TypeApprovalStandards
TheSontels haveanECTypeexamination certificateissued
byKEMAandhavebeenapproved tothefollowingstandards:-
EN50014: 1992 +prA1General Requirements
EN50018: 1994 +prA1Flameproof Enclosure‘d’
4) Installation Requirements
The Sontels mustbeinstalledinaccordance with thelatest
issuesof the relevantparts oftheBS EN 60079 specifications
ortheequivalentIECspecifications –Selection, Installation
and maintenanceofelectricalapparatusfor usein potentially
explosiveatmospheres(other thanminingapplicationsor
explosiveprocessing and manufacture):-
BS EN60079-14 : 1997 ElectricalInstallationsinHazardous
Areas(otherthan mines)
BS EN60079-10 : 1996 Classificationof HazardousAreas
The installationof theunitsmustalsobe in accordance with
anylocal codesthat may apply and should onlybe carried out
byacompetentelectricalengineerwhohasthenecessary
training.
5) Zones,GasGroup,Categoryand Temperature
Classification
The BExTS110D SontelshavebeencertifiedEExdIICT4
(Tamb.–50 to+55ºC). This meansthat the unitscanbe
installed in locationswiththefollowingconditions:-
AreaClassification:
Zone 1 Explosivegasair mixturelikely tooccurin
normal operation.
Zone 2 Explosivegasair mixturenot likely to occur,
andifit does, it will only existfor ashort time.
GasGroupings:
GroupIIA Propane
GroupIIB Ethylene
GroupIIC Hydrogen andAcetylene
EquipmentCategory: 2G
TemperatureClassification:
T1 400oC
T2 300oC
T3 200oC
T4 135oC
Ambient Temperature Range:
-50°C to+55°C
6) SontelLocationandMounting
The locationof the Sontelsshould be madewithdue regard to
the area over whichthewarningsignalmustbeaudible. And
they shouldonlybe fixedto services that cancarry the weight
of theunit.
0344
II2G
Epsilonx:
GasGroupand
Category:
CE Marking
NotifiedBody No.

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DocumentNo. IS2427-PIssue B17-04-02 Sheet2of 4
TheSontelsshouldbesecurely boltedtoasuitablesurface
usingthe7mmdiameter boltholesinthe stainlesssteelU
shapedmountingbracket(see figure1). Theanglecan then be
adjusted in the direction thatthe sound is primarily required to
cover. Thiscan beachieved by looseningthetwolarge bracket
screws in the side of the unit, whichallow adjustment in steps
of18°.On completion of the installation thetwolarge bracket
adjustment screws onthe sideof theunit must befully
tightenedto ensurethat theunit cannot moveinservice.
7) SafetyWarning (ElectrostaticHazard)
The acoustic horn sectionis made of ABSPlastic,thereforeto
avoidapossibleELECTROSTACTIC CHARGEthe unitmust
only be cleanedwith a damp cloth.
8) Access totheFlameproofEnclosure
Inorder to connect theelectrical supply cableandthe
telephonelinecabletotheSontelit isnecessarytoremovethe
flameproof cover togain accessto theflameproof chamber. To
achieve this remove thefour M6 hexagonsockethead screws
(seefigure 2)and withdraw theflameproof covertaking
extremecarenottodamagetheflameproofjointsin the
process.
Notethefour M6screwsareClassA4-80stainlesssteel
andonlyscrewsof thiscategorycanbeused on these
Sontels. Itis thereforeimportant that thesescrews and their
springwashersarekept in a safe place duringinstallation.
Oncompletionof thecable wiring installationtheflameproof
jointsshould be inspectedto ensurethat theyarecleanand
thatthey havenotbeendamagedduring installation.Also
checkthat theearthbonding wirebetween thetwocasting
sectionsissecureandthe‘O’ringseal isinplace.When
replacingtheflameproof cover casting ensurethat itis square
withthe flameproof chamber castingbefore inserting. Carefully
push thecoverin placeallowing timefor theair to be expelled.
Only afterthecover is fullyin placeshould the fourM6
StainlessSteelA4-80coverbolts and theirspringwasherbe
insertedand tighteneddown. If the coverjamswhile it isbeing
inserted, carefully remove it andtry again.Never use thecover
boltsto force the cover intoposition.
9) PowerSupplySelection
Itis important that asuitable powersupplyisused torunthe
Sontels.
The followingtableshowstheinputcurrent taken by the
various units:-
UnitTypeInputInputMax.
VoltageCurrentI/PVolts
BExTS110D230VAC56mA264V
BExTS110D110VAC93mA121V
BExTS110D115VAC110mA126V
The input currentwillvaryaccordingtothe voltage inputlevel
and the frequencyofthetoneselected.The current levels
shown abovearefor the 440Hz Continuoustone@nominal
input voltage.Theunitshaveaswitching voltageregulator
circuit andthereforethe input current levelwill decrease
slightly astheinputvoltagein increasedand willincrease
slightly astheinput voltageisreduced.
The abovetable also showsthemaximum voltagesat which
the sounderscanbe operated.
10) CableSelection
Whenselecting the cable size consideration mustbegivento
the inputcurrentthateach unit draws(seetable above), and
the length ofthe cableruns.
SAFETY WARNING: IfthehighoutputBExTS110Dunitsare
used athighambienttemperatures,i.e. over+40ºC, then the
cable entrytemperature mayexceed +70ºCand therefore
suitable heat resistingcablesmustbeused, witharated
service temperatureofat least 95ºC.
11) Earthing
The Sontelunits mustbeconnectedtoagood quality earth.
The unitsareprovidedwithinternal and externalearthing
terminalswhicharebothlocatedonthe terminalchamber
sectionoftheunit (seefigures 2and3).
Figure 1
PlasticAcousticHorn
PleaseseeSafetyWarning
in Section7ofthismanual
Flameproof
Chamber
Flameproof
Cover
S/SMounting
Bracket
Figure2
4off M6CoverScrews
ExternalEarth
Terminal

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DocumentNo. IS2427-PIssue B17-04-02 Sheet3of 4
When using theexternal earthterminala cablecrimp lug must
be used. Thecablelugshouldbe locatedbetween thetwoM5
stainlesssteelflat washers. TheM5stainlesssteel spring
washermust be fixed betweenthe outer flat washerandthe
M5 stainlesssteel nut toensurethat thecablelugissecured
againstlooseningandtwisting.
Theinternalearthbondingwireensures that agoodquality
earth is maintained betweentheflameproofchambercasting
andthe flameproofcovercasting.
12) CableGlands
TheBExTS110D Sontels have dual cableglandentrieswhich
haveanM20 x1.5.Onlycable glandsapprovedforEx‘d’
applications canbe used, whichmustbe suitable for thetype
of cable being usedandalsomeet the requirements ofthe Ex
‘d’flameproof installationstandard BS EN 60079-14 : 1997.
SAFETY WARNING: IftheBExTS110DSontelsareusedat
high ambient temperatures,i.e.over+40ºC,thenthecable
entry temperaturemay exceed+70ºCand thereforesuitable
heat resisting cableglands mustbe used, with arated service
temperature of at least 95ºC.
Ifahigh IP (Ingress Protection)ratingisrequired thena
suitable sealingwasher must befitted under the cablegland.
Whenonly one cable entry isusedtheother onemustbe
closed with an Ex ‘d’ flameproofblankingplug,which mustbe
suitablyapprovedfortheinstallation requirements.
13) CableConnections
Thecableconnectionsaremadeinto the terminal blockson
the Sontelpcbassemblylocated in theflameproof enclosure.
Seesection8ofthismanualfor access totheflameproof
enclosure.Theprinted circuitboardhastwoterminal blocks,
onefor themainssupply inputvoltageand onefor the
telephonesignalinput cable(see figure4). The mains input
cable should entertheenclosure viaoneof theM20 cable
entries andbe connected to the supplyterminals L andN and
the telephone signalcableshould entertheenclosurevia the
other M20 entry andbe connected tothetelephoneterminal.
A singlewire withacross sectionalarea ofup to 4mm² can be
connectedtoeachterminal way. Whenconnecting wires to the
terminalsgreat care should betakento dressthewire so that
whenthecoverisinsertedintothechamberthewires donot
exert excesspressureonthe terminalblocks. Thisis
particularlyimportantwhenusingcableswithlarge cross
sectional areassuchas2.5mm² andabove.
14) ToneSelection
The BExTS110D Sontelshave32differenttonesthat can be
selectedbythe DIP switches onthe sounderpcb(see figure
4). The tone table onpagefour shows theswitch positions for
the 32 tones.
15) PulseToneOperation
The BExTS110DSontel hastwomodesofoperation
continuoustone operationandpulsedtoneoperation. To
selectcontinuoustoneoperationthepulse toneheader pins
shouldnotbeshorted (seefigure 4). Inthis modetheoutput
tonewill beas per the tonetable.Toselectpulse tone
operation thepulsetone headerpinsshouldbeshorted (see
figure4). Inthis modeofoperation theselectedtonepattern
willpulse onand offfollowing thetelephone input signal.Note
if pulsed toneoperationis selectedit is advisable not toselect
anyof theintermittenttones, suchastone11.
16) VolumeControl
The BExTS110D Sontel,has avolumecontrol toadjustthe
output level. To setthe requiredoutputlevel, adjust the
potentiometer onthesounderpcb (seefigure4). Formaximum
output level the potentiometershouldbeset tothe fully
clockwise position.
2off M20
CableEntries
InternalEarthTerminal
Figure3
InternalBonding
WireTerminal
Figure4
BExTS110D Sontel
DIPSwitch
VolumeControl
TelephoneSignal
Input Terminals
MainsSupply
Input Terminals
Land N
PulseTone
HeaderPin

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DocumentNo. IS2427-PIssue B17-04-02 Sheet4of 4
TONESELECTIONTABLE
ToneSelection
DIPSwitch
Settings
Stage1 FrequencyDescription 12345
1 Continuous1000Hz
Toxicgasalarm 00000
2 Alternating800/1000Hzat0.25s
intervals 10000
3 SlowWhoop 500/1200Hzat0.3Hz
with0.5sgaprepeated 01000
4 Sweeping800/1000at1Hz 11000
5 Continuousat2400Hz 00100
6 Sweeping2400/2900Hzat7Hz 10100
7 Sweeping2400/2900Hzat1Hz 01100
8 Siren500/1200/500Hzat0.3Hz 11100
9 Sawtooth1200/500Hzat1Hz 00010
10 Alternating2400/2900Hzat2Hz 10010
11 Intermittent1000Hzat0.5Hz
Generalalarm 01010
12 Alternating800/1000Hzat0.875Hz 11010
13 Intermittent2400Hzat1Hz 00110
14 Intermittent800Hz0.25son 1soff 10110
15 Continuousat800Hz 01110
16 Intermittent660Hz150mSon,
150mSoff 11110
17 Alternating544Hz
(100mS)/440Hz(400mS) 00001
18 Intermittent660Hz1.8son, 1.8soff 10001
19 1400Hzto1600Hzsweepupover
1s-1600Hzto1400Hzsweepdown
over0.5s
01001
20 Continuous660Hz11001
21 Alternating554/440Hzat1Hz 00101
22 Intermittent554Hzat0.875Hz 10101
23 800Hzpulsingat2Hz 01101
24 Sweeping800/1000Hzat50Hz 11101
25 Sweeping2400/2900Hzat50Hz 00011
26 Simulatedbell sound 10011
27 Continuous554Hz 01011
28 Continuous440Hz 11011
29 Sweeping800/1000Hzat7Hz 00111
30 420Hzrepeating0.625son, 0.625s
offAustralianalertsignal 10111
31 1200/500Hzat1Hz
Preparetoabandonplatform 01111
32 Sweeping500/1200Hz3.75son,
0.25soff 15Hz 11111