Conlog BEC23 User manual

Part Number: 700034708000 Rev.5
All Rights Reserved© 2006
Informationinthisdocumentissubjecttochange withoutnoticeanddoesnotrepresentacommitmenton
thepartofMerlinGerinSA(Pty)Ltdt/aConlog.Nopartofthisdocumentmaybereproduced,
transmitted,transcribedortranslatedintoany language withoutexpress writtenpermissionofMerlin
GerinSA(Pty)Ltdt/aConlog.

2BEC23TechnicalManual
TableofContents
Section1:CompanyOverview............................................................4
Section2:Introduction.......................................................................5
Section3:Standards..........................................................................6
Section4:Specifications.....................................................................6
Section5:Features............................................................................7
Protection.........................................................................................7
Security............................................................................................7
Reliability..........................................................................................7
Section6:MeterOverview..................................................................8
DisconnectionDevice........................................................................9
Latchtype meter(BEC23PL)................................................................................9
CircuitBreakertypemeter(BEC23PD)................................................................9
EarthLeakagetype meter(BEC23PE)..................................................................9
Rate LED...........................................................................................9
Meterserialnumber........................................................................10
Userinterface.................................................................................10
Meterinterface.................................................................................................10
LCD interface.................................................................................10
LCD IconDisplay.............................................................................................11
OverloadIndication.........................................................................................11
LowCreditIndication.......................................................................................11
Zero CreditIndication......................................................................................11
Wait(Clock)Indication.....................................................................................11
NegativeCreditIndication................................................................................11
TokenAcceptanceIndication............................................................................12
TokenRejectionIndication................................................................................12
TamperIndication............................................................................................13
Section7:SpecialUserFunctions......................................................14
MeterStatus....................................................................................16
Tamperdetectionflag......................................................................................16
Metercommissioningflag................................................................................16
Section8:EngineeringTokens..........................................................17
Maximum LoadLimittoken(MeterSpecific).....................................17
ClearCredittoken(MeterSpecific)..................................................17
KeyChangetoken(MeterSpecific)..................................................17
ClearTampertoken(MeterSpecific)................................................18
Commissioningtoken(Non-MeterSpecific)......................................18
MeterTesttoken(Non-MeterSpecific)..............................................19
Section9:Installationof themeter....................................................20
Installingthe wall base....................................................................20
Wiringupthewall base..................................................................20
Testingthemeterinstallationandsealingthe unit............................21
Removingthemeter........................................................................21
Section10:UsingaBEC23 Electricity Meter.......................................22
Section11:ProblemSolving.............................................................23

BEC23TechnicalManual 3
TokenProblems..............................................................................23
Invalidtoken....................................................................................................23
Used/Duplicatetoken.....................................................................................23
Expiredtoken...................................................................................................24
MeterFull.........................................................................................................24
MeterProblems...............................................................................25
ErrorCodesonMeters....................................................................26
Section12:TypicalInstallation..........................................................27
Section13:GlossaryOfTerms.........................................................28
Section14:TechnicalSpecifications..................................................31
Section15:ContactInformation.......................................................33

4BEC23TechnicalManual
Section1:CompanyOverview
SincetheinceptionoftheSouthAfricanprepaymentindustryinthelate1980s,Conloghasbeenatthe
forefrontofpioneeringsolutionsthatmeettheneedsofutilitiesworldwide.
Thefoundationofprovidingsimple yettechnologically advancedproducts,coupledwithanethosof
ensuringourcustomers’success,hasresultedinourleadershipposition.
Productsfortodayandtomorrow
Conlog specialisesinprovidingprepaymentsolutionsforthedeliveryofelectricityandwaterservices.Our
broadrangeofproducts encompassesprepaymentmeters,vendingrevenuemanagement,support,
services,maintenance,aswell astheonly dedicatedandaccreditedtrainingfacilityforall aspects of
prepayment.
Thiscomprehensiveandholisticapproachenablescustomerstoreapthefull benefitoftheirinvestment
andensuressustainedsuccess,intothefuture.
Globalfootprint
Thecompanycurrently hasprepaymentprojects operatinginmorethan20 countrieswithanever
increasingfootprintthatencompassesAfrica,EasternEurope,SouthAmerica andSouthEast Asia.In
addition,asasubsidiaryoftheglobalSchneiderElectricgroup,wehaveaccess toanetworkofofficesin
over130countries.
Platformofexcellence
Inall areasofthebusiness,ourgoalisforabsoluteexcellence.Tothisend,thecompany’s
manufacturingfacilitiesareindependently accreditedwithISO9000:2001andISO14001standards.
Ourproducts alsocarrythehighest internationalstandards,andthecompanyaims forcontinual
improvementthroughavarietyofinternalqualityprogrammessuchassixsigma.
Aworldofexperience
Specialisinginprepayment,Conlog hasbeenprovidingcustomerswithanunsurpasseddepthof
experienceandknowledgefor over15 years.Thecompanyhasreceivedanumberofaccoladesthrough
theyearsincludingtheinauguralInnovationAwardfor theprepaymentindustry,theElectricitySupply
Industry’s(ESI)Best MeteringCompanythree yearsinarow,aswell asrecognitionforits Black
Empowerment.

BEC23TechnicalManual 5
Section2:Introduction
TheBEC23 meterisasingle phase,STScompliantPrepaymentElectricityMetercomprising2parts,these
beingatotally sealedmeteringunitandawall base.TherearedifferentmodelsintheBEC23 range.
Thesemodelsarelistedbelow withtheirtechnicalspecifications.Notetheactualfunctionalityofthe
differentmodelsisidentical.
BEC23PL
ThisisaSTSsingle-phaseprepaymentelectricity meterthatutilizesacommon
base.Thedataisenteredbymeansofakeypadandtheinternal
disconnectionswitchisratedto100A.
BEC23PLT
ThisisaSTSsingle-phaseprepaymentelectricity meterthatutilizesacommon
base.Thedataisenteredbymeansofakeypadandtheinternal
disconnectionswitchisratedto100A.It alsohasatamperswitchtodetect
tamperingonthemeter.
BEC23PD/T
ThisisaSTSsingle-phaseprepaymentelectricity meterthatutilizesacommon
base.Thedataisenteredbymeansofakeypadandthedisconnectionswitch
isadouble pole circuitbreaker,ratedto60A.
BEC23PE
ThisisaSTSsingle-phaseprepaymentelectricity meterthatutilizesacommon
base.Thedataisenteredbymeansofakeypadandthedisconnectionswitch
isanearthleakagecircuitbreaker,ratedto20A.
BEC23PET
ThisisaSTSsingle-phaseprepaymentelectricity meterthatutilizesacommon
base.Thedataisenteredbymeansofakeypadandthedisconnectionswitch
isanearthleakagecircuitbreaker,ratedto20A.It alsohasatamperswitchto
detecttamperingonthe meter.

6BEC23TechnicalManual
Section3:Standards
Specifications
IEC62052-11 Electricitymeteringequipment(AC)
Generalrequirements,tests andtest conditions.
Part11:Meteringequipment
IEC62053-21 Electricitymeteringequipment(AC)
Particularrequirements
Part21:Staticmetersforactive energy(classes1and2)
IEC62055-41 Electricitymetering-Paymentmeteringsystems
Part41:StandardTransferSpecification
IEC60068-2-27 Environmentaltesting
Part2:Tests.Test Eaandguidance: Shock
IEC60068-2-6 EnvironmentalTesting
Part2:Tests -Test FC:Vibration(Sinusoidal)
IEC62056-21 Electricitymetering-Dataexchange formeterreading,
tariff andloadcontrol-Part21:Directlocaldata
exchange
SANS1524-1 Electricitypaymentsystems–Prepaymentmeters
ISO14001:2004 Environmentalmanagementsystems
ISO9001:2000 Quality managementsystems–Requirements with
guidanceforuse
ESKOM
SCSSCAAA9
ParticularRequirements forPre-paymentMeters
ESKOM
TRMSCAAP2
SurgeArrestors
SANS 767-1
(BEC23PE/T)
Earthleakage protectionunits
Part1:Fixedearthleakageprotectioncircuitbreakers
VC8035
(BEC23PE/T)
Earthleakage protectionunits
Section4:Specifications
VoltageRange
• 220-240VAC(phasevoltage)–20%+15%
• Additionalvoltagerangesavailableonrequest
Supply Frequency
• 50Hz+ 2%
• Additionalfrequencyrangesavailableonrequest
CurrentRatings
• Maximumcurrent:
- 80 AmpsBEC23PL/T
- 20 AmpsBEC23PE/T
• Basecurrent5Amps
• Startingcurrent0,025Amps
TotalSupply Burden
• Nominally 1.2Wand9.5VA
DisconnectionDevice
• 100 Ampsingle pole bi-stable disconnectionswitch(BEC23PL/T)
• 60 Ampdoublepole circuitbreaker(BEC23PD/T)
• 20 Ampdouble pole earthleakagecircuitbreaker(BEC23PE/T)

BEC23TechnicalManual 7
Environmental
• Operatingtemperature:-10°Cto+55°C.
• Storagetemperature: -25°Cto+70°C.
• Humidity: 95%non-condensing
Accuracy
• Class 2
Enclosure
• IP51
Section5:Features
Protection
• Eachphaseisprotectedby Conlog’s5kA/ 5kVsurge arrestor
• Electroniccircuits designedtowithstand420VACforupto48 hours
• Shortcircuitcurrentrating:
- 2.5kA(BEC23PE/T)
- 3kA(BEC23PL/T)
• Load/LineReversalProtection
Security
• Provisionfor leadsealsorwiresealsare made
• Theinstallationiscompletely sealedtopreventtamperingandinsectingress
• Internalregisterofcorrectly enteredtokens
• Eachmeterhasauniquesecuritykey
• Metercanbe equippedwithatamperswitch
• Metercanbeshippedeitherinacommissionedstateor non-commissionedstate
Reliability
• Conformal-coatedPCB’s,protectagainst insect,dust andhumidity
• Keypadhasaprovenreliabilityofmorethanonemillionoperationsperkey
• Pickandplacetechnologyusingsurfacemountedcomponents ensuresahighdegree of
manufacturingaccuracyandrepeatability

8BEC23TechnicalManual
Section6:MeterOverview
BEC23PL
BEC23PE
Keypad
Rate
LED LCD
Display
CircuitBreaker
ResetSwitch
MeterSerial
Number
Security
Seals
Keypad
Rate
LED LCD
Display
MeterSerial
Number
Security
Seals
EarthLeakageTest
Button

BEC23TechnicalManual 9
DisconnectionDevice
Latchtypemeter(BEC23PL)
Themeterusesone100 A,3kAsingle pole loadswitchasthedisconnectiondeviceonasingle-phase
meter.
Thisdisconnectionswitchdisconnects theconsumerwhenthecreditexpiresor the loadlimitisexceeded.
Whenthedisconnectionswitchopensduetoanoverloadlimitbeingexceededitremainsopenfor
approximately 30secondsandthenre-closes.Iftheoverloadisstill presentitopensagain.After5
consecutive30-secondreconnectionattempts thedisconnectionswitchwill remainopenfor30 minutes.
Thispatternisrepeatedindefinitelyuntil the overloadisremoved.
It shouldbenotedthatthedisconnectionswitchisnotdesignedasanover-currentprotectiondeviceand
must notbeusedtointerruptfaultcurrents.
CircuitBreaker typemeter (BEC23PD)
Themeterusesone60Adoublepole circuitbreakerasthedisconnectiondeviceonasingle-phasemeter.
Thecircuitbreakerdisconnects theconsumerwhenthecreditexpiresor theloadlimitisexceeded.When
thecircuitbreakertripsduetotheloadlimitbeingexceeded(overload),youwill notbeable toresetthe
breakeruntil theoverloadisremoved.
EarthLeakagetypemeter(BEC23PE)
Themeterusesone20Adouble pole circuitbreakerasthedisconnectiondeviceonasingle-phasemeter.
Thecircuitbreakerdisconnects theconsumerwhenthecreditexpires,theloadlimitisexceededor thereis
afaultcurrentdetected.Whenthecircuitbreakertripsduetotheloadlimitbeingexceeded(overload),
youwill notbeable toresetthebreakeruntil theoverloadisremoved.Ifittripsduetoafaultcurrent,a
qualifiedelectricianshouldbecalledintoinvestigate thereasonwhy itistripping.
Note: Withthistypemeterareadyboardordistributionboardisnotnecessaryfortheinstallation.The
outputfromthemetercanbeconnecteddirectly toaplug socket.See Section12,‘Typical
Installation’.
RateLED
ThemeterhasarateLEDthatpulses1000 timesperkWhdeliveredandindicatestotheconsumerthe
rate atwhichelectricity isbeingconsumed.
It canbeused,inconjunctionwiththeMeterInterrogatoropticalreaderandatest loadtocheckthe
calibrationofthemeter.TheRateLEDcanalsobeusedtogetherwiththeMeterInterrogator Kitto
performanopticaldump.Thisindicatestheremainingcredit,usertotaltodate,metertotaltodate,
meterserialnumberandsoftwareversion.
Intheeventofmeterfailuretheinformationavailable fromtheRateLEDmayalsobereaddirectly using
aMC171 DirectProbe inconjunctionwithanInterrogator Kit.

10 BEC23TechnicalManual
Meterserialnumber
TheMeterserialnumberisderivedasshownbelow:
Example:
04 12 23 8425 6
Sotheinterpretationofthisserialnumberis:themeterisaConlogmeter,madein2002 andits
sequencenumberis238425.
User interface
Meter interface
• Keypaduserinterfacewithtactile feedback
• Alarge formatLCD thatsupports numeric, bargraphsandiconsisused
• AnLEDindicatingthe rateofconsumption(FlashRate:1000 pulses/kWh)
• Supports the opticalanddirectprobe usingthe MeterInterrogatorKit
LCDinterface
Themeters’LCD interfacehasbeenstandardisedthroughouttherangeofConlogelectricitymeters.The
LCD displayindicatescreditavailable (inkWh),loadindicator,overloadindication,low creditwarning,
zero creditindication,negativecreditindication,waitindication,tokenacceptanceor rejectionindication,
tamperindicationandspecialuserfunctions.(Referto“SpecialUserFunctions”fordetails)
STS
Manufacturer
Number
Numberofyears
since1990
SequentialUnit
Numbermade CheckDigit
Consumption
indicatorasa%of
themaximumlimit
System
Busy
Supply
Status
Token
Accept/Reject
Negative
Credit
Tamper
Status
Available
creditin
kWh
Entertokenicon/
Lowcreditwarning

BEC23TechnicalManual 11
LCDIconDisplay
Aboveisthedisplay,asitwouldappear withall thesegments incurrentusehighlighted.When“display
test”, , isactivatedviathekeypad, furthericonswill appear.
OverloadIndication
Theconsumerisdisconnectedwhentheloadpower/currentbeingconsumed,averagedovera15
secondperiod,exceedstheload/currentlimit.Whenthishappensall tensegments oftherate
consumptionbar-graphflashasanindicationtotheconsumertoswitchoff appliances.Theloadlimitis
programmable allowingthesupply authoritytolimitthemaximumpoweranindividualconsumerisable
todraw.
LowCredit Indication
Whenthelowcreditthresholdisreachedthemeterwill begintoflashthe icon.Only whenthecredit
goesabovethethresholdwill the icongooff.
ZeroCredit Indication
Whentheavailable creditreacheszero thedisconnectdevicedisconnects theload.Whenthecreditis
zero the iconremainsoncontinuously andthedisconnectdevicestatusicon goesoff or thecircuit
breakerwill trip.
Note: ThedisconnectdevicestatusiconontheLCD isnotavailable onacircuitbreakertypemeter
(BEC23PE).
Wait (Clock)Indication
Whenthewaiticonappearsthesystemisbusyandthekeypadisdisabled.Theconsumermust waituntil
thewaiticondisappearsbeforeenteringdata.
NegativeCredit Indication
Undercertaincircumstancese.g.throughswitchingdelaysor afaultydisconnectiondevice,theconsumer
maycontinuedrawingcurrentafterthetrippointhasbeenreached.Shouldthemeterbeconfiguredto
displaynegativecreditvaluesthedisplaywouldincludeanegativesignprecedingthecreditvalueas
indicatedinthedisplaybelow.

12 BEC23TechnicalManual
Alternatively,themetercanbeconfigured,atthetimeofmanufacture,sothatthedisplaycontinuesto
indicate 0.00 kWhwhilst themeterregistersthenegativecreditinits memory.Theentercrediticon
continuestobedisplayedandthedisconnectiondevicestatusiconisnotdisplayed.
TokenAcceptanceIndication
Onacceptance,thedisplaywill flashtheenteredvalue.Thedurationfor displayingthevalueshall be10
seconds,thereafterrevertingtoits defaultdisplay.
The isilluminatedatthestartofthemessagedisplayandremainsactivefor aperiodoffour seconds
beforebeingextinguished.
Intheexample below avalueof726.04kWhisbeingadded.
TokenRejectionIndication
Ifthetokenisnotacceptedthetokenrejectedicon appearsfor 4secondsfollowedbytheexplanatory
code flashingfor10seconds.
DisplayedonLCD MeaningofCode
MeterFull
DuplicateToken
DataEntryError
TokenExpired
See also“ProblemSolving”Section11,forfurtherexplanationofthe above codes.

Part Number: 700034708000 Rev.5
TamperIndication
Intheeventthatatamperconditionhasbeendetectedthemeterwill initiatethetamperprocess.The
configurationflagsintheoptionsregisters(setupatthetimeofmanufacture)governsthis.Themeter
canbeconfiguredtodisconnecttheconsumer’ssupply andeitherdisplayor notdisplaythetamper
detection.Ifconfiguredtodisplaythetamperstatusthenthe“LightBulb” iconwill bedisplayed,as
indicatedinthe graphiconthefollowingpage.
Toclearthetamperconditiona“clear tamper”meterspecificmanagementtokenisrequired.Whenthis
tokenisenteredthedisplaywill flashall ‘t’sthereafterrevertingtothenormalcreditdisplay.
Thetickwill be visible forfour seconds,thereafterthe“t”swill be displayed(flashing)for afurthersix
seconds(atotaldisplaytimeof10 seconds).
Lightbulbis
flashing
Supply
suspended

Part Number: 700034708000 Rev.5
Section7:Special UserFunctions
Thefollowinginformationcanbeobtainedfromthemeterbyenteringthefollowinghashcommandsvia
thekeypad:
KeypadEntry DisplayReading
AveragePowerinkW
TheamountofelectricalpowerinkW’scurrently being
usedaveragedovera15 secondperiod.It will be
displayedfor 10secondsbeforerevertingtothenormal
creditdisplay.Theexample showsconsumptionof9.21
kWh.
TotalUserConsumptionToDate
Thetotalamountofelectricityconsumedbythecustomer,
inkWh,sincethelast clearcredittokenwasenteredwill be
displayed.After10 secondsitwill reverttothenormal
creditdisplay.
Theexample showsausertotalconsumptiontodateof
47723.9kWh
KeypadTest/ DisplayTest
Initiatingakeypadtest andpressingeachofthekeyswill
test thekeypad.Thedisplaywill fill withcharactersrelative
tothekey beingtested.Theexample showsthekey
havingbeenpressed.
Type andthesegmentdisplaytest will be
invoked.Oncethetest iscompleteitwillreverttothe
normalcreditdisplay.
TotalUserCreditToDate
Thetotalamountofcreditenteredintothemetersincethe
last clear credittokenwasenteredwill bedisplayed.
After10 secondsthedisplaywill reverttothenormalcredit
display.
Theexample showsthetotalcreditenteredtobe9030.8
kWh.
MeterStatus
Themeterstatusregisterisdisplayedinbitform.After10
secondsthedisplaywill reverttothenormalcreditdisplay.
Thetable ‘MeterStatus’below showsthemeaningofeach
bitofinformation.Bit0starts ontherighthandsideofthe
LCD display,movingacross toBit7onthelefthandside
ofthedisplay.Afterafewsecondsitwill reverttothe
normalcreditdisplay.
Theexample indicatesameterthathasbeen
commissionedandisnotintamper.

BEC23TechnicalManual 15
DisplaySupply GroupCode(SGC)
TheSGCisprogrammedintothemeteratthetimeof
manufacture.The example showsaSGCof399999.
Whenakey changehasbeenperformedthisvalueis
clearedtozero.It shouldbenotedthatthekey change
tokensdonotcontainanyinformationpertainingtothe
SGCnumber,thereforetheSGCregistercannotbe
updated.
To
Last 10STS Token20-DigitNumbers
Themost recenttokenenteredcanbeselectedbythehash
key 11,thesecondmost recenttokenbythehashkey 12
andsoon.Theactual20 digittokenisdisplayedasread,
fromlefttoright.
To
Last 10STS TokenTransferAmountsinkWh
IftheinformationcontainedwithinthetokenisnotakWh
value,thentheclass andsub-class ofthetokenis
displayed.Theonly tokencarryingkWhinformationisthe
credit.BoththepoweroverloadsettingandPhase
Imbalancetokenshave avaluedepictedaskW.
Thegraphiconthetopgraphicshowsanexamplewhere
thetokendoesnotcontainanumerickWhvalue; itisa
clearcredittoken.
Thegraphicbelow showsanexample wherethetoken
doescontainanumerickWhvalue; it’sacredittokenof
726.04kWh.NoClass or Sub-Class isshown.

16 BEC23TechnicalManual
MeterStatus
Type onthekeypadandthemeterconfigurationregisterstatuswill bedisplayed.Thetable
belowshowsthemeaningofeachbitofinformation.Bit0starts ontherighthandsideoftheLCD display
withBit7onthelefthandsideofthedisplay.Afterafewsecondsitwill reverttothenormalcredit
display.
BIT StatusFlag Detail
Bit7 Tamperdetectionflag 0=Notamper detected
1=Tamper detected
Bit6 NotUsed
Bit5 Meter commissionedflag 0=Meter notcommissioned
1=Meter commissioned
Bit4 Reservedfor Internal Use
Bit3 NotUsed
Bit2 Reservedfor Internal Use
Bit1 Reservedfor Internal Use
Bit0 Reservedfor Internal Use
Table1-Meterstatus register
Theexample below indicatesameterthathasbeencommissionedandisnotintamper.
Tamperdetectionflag
Whenthisflagisclear themeterhasnotdetectedatampercondition.Whensetthemeterhasdetecteda
tamperconditionandtheappropriatedisplay/iconswill beenunciated.Variousoperational
configurationsareavailable forthetamperdetectcondition.
Metercommissioningflag
Thecommissioningconfigurationflagissetor clearedduringproductionorviathemeterspecific
commissioningconfigurationtoken.Iftheflag isset(1)thedisconnectiondevicewill closeifall other
requirements for closingthedisconnectiondevicearemet.Themeterwill alsodetecttamper(if
configured)wheneverthemeterisremovedfromthebase.Iftheflag iscleared(0)theconsumers’supply
will bedisconnectedandthetamperdetectionfunctionalitywithinthemeterwill bedisabled(if
configured).
Tamperflag
Commissionedflag

BEC23TechnicalManual 17
Section8:EngineeringTokens
Thereareagroup oftokensusedtoconfigurethemeterandperformadditionalspecialoperations.The
ElectricityVendingUnitissuesthem.Sometokenswill only beacceptedbyaspecificmeter(knownas
“MeterSpecific”tokens)andmayonly beusedoncewhile othersworkinall meters(“Non-MeterSpecific”
tokens)andarereusable.
MaximumLoad Limittoken(MeterSpecific)
Thistokenisusedtoadjust theloadlimitofthemeterandisissuedbytheElectricityVendingUnit.The
BEC23 meterwithaninternaldisconnectiondevicemaybesetfrom0.23 kWto18,4kW.(At unity
powerfactor,thiswouldequatetoaprogrammable rangebetween1Aand80Aat230VAC).TheBEC23
meterwithacircuitbreakermaybesetfrom0.23kWto13.8kW.(At unitypowerfactor,thiswouldequate
toaprogrammable rangebetween1Aand60Aat230VAC).Thistokenismeterspecificandmayonly
beusedonce.
Clear Credittoken(MeterSpecific)
Thistokenisusedtoclearthe“creditremaining”registerandthe“usertotalconsumptiontodate”
register.It doesnotclearthe“metertotalconsumptiontodate”register.Thistokenismeterspecificand
mayonly beusedonce.
KeyChangetoken(MeterSpecific)
Thistokenisusedtoreplacetheexistingkey withanewonei.e.whenchangingtheSupply GroupCode,
Tariff IndexorKey revision.Itisa40-digitnumberforthekeypadmeter.
Oncompletionofthefirst 20-digittokenthedisplayannouncesits acceptanceofthetokenbythenormal
icon,displayedfor 4seconds,while displayingthedecimalpoints forafurther6secondsbefore
returningtothedefaultdisplay.
At thistimea4-minutetimerisinitiatedwaitingentryofthesecond20-digittoken.Iffor somereasonthe
secondtokenisnotentered,thekey will notbechangedandthemeterwill continuetoaccepttokens
basedontheexistingkey.
Whenthesecondkey changetokenhasbeenenteredthekey changeinformationisprocessed.If
successfulthefollowingkey change acceptance messageisgiven.
Theacceptanceofthetokenisindicatedbythenormal icon,displayedfor 4seconds,keepingthe
displayofthe characterC’sfor afurther6secondsbeforereturningtothedefaultdisplay.
Note: TheuseofthistokenerasestheSGCdisplay.Whenrunninga“MeterTest”token(Referto“Meter
Test Token”) or#10#,thedisplaywill bezero,althoughtheSGCisstill residentinthemeter.

18 BEC23TechnicalManual
Clear Tamper token(MeterSpecific)
Ifthe‘TamperDetect’hasbeenenabledonyourmeteratthefactory,thenyoumightneedtousethis
token.Ifameterisremovedfromthecommonbasewithoutisolatingthepowertothismeter,themeter
will gointoatamperstate.Toclear thistamperstateyouwill needtomakea‘Clear Tamper’tokenata
vendingunit,powerupthemeteragainandenterthe20 digits Makesurethatyouisolatethepower
fromthemeterbeforeremovingitfromthebasetoavoidthemetergoingintothisstate.Thistokenis
meterspecificandmay only beusedonce.
Commissioningtoken(Non-MeterSpecific)
Thecommissioningtokenisanon-meterspecifictoken 12754194144864505970.Themetercanbe
configuredwithor withoutcommissioning.Ifconfigured,themeterissuppliedwiththedisconnection
deviceopenandthetamperdetectioncircuitryinactive.
Onenteringthetokenthemeterwill connecttheconsumer’ssupply (internaldisconnectiondevicemeter)
or allow themanualresetofthecircuitbreaker.Thetamperdetectionwill alsobeactivatedinwhatever
configurationissetupduringproduction,ifenabled.
Themessageaboveflashesfor aperiodof10secondsoncethetokenhasbeensuccessfully entered.The
tokenaccepticoninitially appearsfor aperiodof4secondstoindicateavalidtokenandthewaiticon
will be onwhile “ACTIVE”isflashingonthedisplay
Multipleentryofthistokendoesnotchangethecommissionedstatusofthemeters,however,itwill
displayEEEEEEEE onthescreenifenteredmore thanonce.

BEC23TechnicalManual 19
MeterTesttoken(Non-MeterSpecific)
Thistoken,definedasSTS0,isusedtoperformaseriesoftests onthemeter.
Typinginthe20-digitcode,initiatesthetest,whichcontinuestostepthroughthesequenceautomatically
whilst displayingthedatashownforeachstep.Thesestepswill changefrommetertometeranddetailed
belowarethevariousstepsthateachmeterwill gothroughandwhateachstepindicates,thisisan
example ofthe results.
Note: Onanon-tampermeter,Step10 below (8onmeterdisplay)will notbeshown,soitwill jump
fromStep9toStep11.
The20Digitnumberis: 56493153 725450313471.
Step1 Step2 Step3
Opencontactor /tripbreaker ifthere
is creditinthemeter
PerformLCD displaytest.
Performoptical dumpvia rateLED
Positivecredit–disconnectiondevice
opensandcloses
NegativeCredit–disconnection
deviceisnotactivated
Step4 Step5 Step6
User Total ConsumptionToDate. Meter Total ConsumptionToDate. KeyRevisionNumber.
Step7 Step8 Step9
KeyType. Tariff Index. Loadlimit. Thepower inWatts
Step10 Step11 Step12
Tamper Status
00 –Meter notintamper mode
01 –Meter intamper mode
AveragePower Consumption. Meter Software RevisionNumber.
Ifpositivecreditthedisconnection
devicewill openandclose again.

20 BEC23TechnicalManual
Section9:Installationofthe meter
Installingthewall base
1.Determinethecable entrypointandmeterposition(between1.3and1.5mabovefloor level)with
user.
2.Positionthetemplateintheabovepositionnotcloserthan1meterfromthenearest tapandnot
directly above astoveorwater.
3.Tape thetemplatetothewall.
4.Drill theholesthroughthetemplatewitha6mm masonrybitdeepenoughtoaccommodatewall
plugs.
5.Drill holesinwall baseforcables/glands.
6.Fitwall plugsandscrewthewall basetothewall.Donotovertightenasthiscouldtwist thewall
base.
Wiringupthewall base
Caution: Thewiringistobeperformedbyacertifiedinstallationelectricianandmust conformtothe
prevailingGovernmentstandardsandsafetyregulations.
1.Wirethewall base usingcable glandsappropriate fortheinstallation.
2.Connectthe incomingsupply tothetopsetofterminals(abovethe horizontalpartition).
3.Connectthelive wiretotheterminalontherightandtheneutralwire tothe left.
4.Connecttheearthwiretotheearthterminal.
5.Connectall outgoingwirestothebottomsetofterminals. Livetotherightterminal, neutraltotheleft
andtheearthtotheearthterminal.
6.Theoutgoingwiresfromthewall baseshouldbeconnectedtoareadyboard,iftheearthleakage
typemeterisnotbeingused.RefertoSection12for “TypicalInstallations”.
Note: ThismeterisequippedwithaLine/LoadReversalDetector.Ifthelineandloadwiringis
swappedaroundthenthefirst timethemeterdrawsaloadinexcess of40Watts,themeterwill
trip.
Line
Wiring
Area
Neutral
Terminal
Earth
Terminal
Live
Terminal
Surge
Arrestor
Template