EUROPEANSTANDARDEN50676

EUROP?ISCHENORMDecember2019

ICS13.320;27.200

EnglishVersion

Electricalequipmentusedfordetectionandconcentration

measurementofrefrigerantgases-Performancerequirements

andtestmethods

Appareilsélectriquesutilisespourladétectionetlamesure

delaconcentrationdegazfrigorigènes-Exigencesde

performanceetméthodesd'essai

ElektrischeGer?tezurDetektionunud

KonzentrationsmessungvonK?ltemittelgasen-

AnforderungenandasBetriebsverhaltenundPrüfverfahren

ThisEuropeanStandardwasapprovedbyCENELECon2019-11-04.CENELECmembersareboundtocomplywiththeCEN/CENELEC

InternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.

Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENELECmember.

ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENELECmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.

CENELECmembersarethenationalelectrotechnicalcommitteesofAustria,Belgium,Bulgaria,Croatia,Cyprus,theCzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,lceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,the

Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TurkeyandtheUnitedKingdom.

EuropeanCommitteeforElectrotechnicalStandardizationComitéEuropeendeNormalisationElectrotechnique

Europ?ischesKomiteefürElektrotechnischeNormung

CEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels

◎2019CENELECllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENELECMembers.

Ref.No.EN50676:2019E

2

EN50676:2019(E)

ContentsPage

Europeanforeword 3

Introduction 3

1Scope 5

2Normativereferences 5

3Termsanddefinition 6

Figure1—Warm-uptimeincleanair(typical) 8

4Generalrequirements 8

4.1Introduction 8

4.2Construction 9

Table1—Measuringranges,referencevaluesandmaximumthreshold 9

4.3Adjustments 10

4.4Gasdetectiontransmitterforusewithseparategasdetectioncontrolunits 10

4.5Separategasdetectioncontrolunitsforusewithgasdetectiontransmitter(s.) 10

4.6Equipmentusingsoftwareand/ordigitaltechnologies 10

4.7Labellingandmarking 10

4.8Instructionmanual 11

5Testmethods 11

5.1Introduction 11

5.2Generalrequirementsfortest 1

5.3Samplesandsequenceoftest 1

5.4Normalconditionsfortest 12

5.5Tests 13

Table2—Testgasforpoisongastes 15

AnnexA(normative)Gasspecificperformancerequirements(EN45544-1) 17

TableA.1—Gasspecificperformancerequirement 17

AnnexB(normative)Performancerequirementsunderstandardtestcondition 18

TableB.1—Performancerequirementsunderstandardtestcondition 18

Bibliograph 20

EN50676:2019(E)

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Europeanforeword

Thisdocument(EN50676:2019)hasbeenpreparedbyCLC/TC216"Gasdetectors".

Thefollowingdatesarefixed:

·latestdatebywhichthisdocumenthas(dop)2020-11-04

tobeimplementedatnationallevelby

publicationofanidenticalnational

standardorbyendorsement

latestdatebywhichthenational((dow)2022-11-04

standardsconflictingwiththisdocument

havetobewithdrawn

Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENELECshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.

EN50676:2019(E)

4

Introduction

ThisdocumentspecifiestestmethodsandperformancerequirementsforallelectricalequipmentusedforgasdetectioninrefrigerantapplicationsasdefinedinEN378-1:2016bymeansofconcentrationmeasurement.

Thisdocumentisaddressedtothemanufacturersofsuchequipmentandtestlaboratorieswhichvalidateit.Thetendencytouselow-GWPrefrigerantgasesintherefrigerationandHVACmarket(F-GasRegulation)hasintensifiedtheconsiderationsofsafetymeasuresforlow-GWPgasesassomeareflammable,toxicandcancauselackofoxygen.

Thisdocumentcoversallrefrigerantgasesanddefinesperformancerequirementsforthedetectionequipment,mentionedinEN378-3:2016asgasdetectorsorsensors,usedinrefrigerantapplications.Thelevelofsafetyisexpectedtobethesameasinthealreadyexistingperformancestandardsforgeneral-purposeequipment,i.e.EN60079-29-1concerningrefrigerantflammablegasesandEN45544seriesconcerningrefrigeranttoxicgasesinatmospheres.RefrigerantgasesnotmentionedbyEN378-1:2016are

alsocoveredbythisstandardfollowingthecategorizationschemeofEN378-1:2016.

EN50676:2019(E)

5

1Scope

Thisdocumentspecifiesgeneralrequirementsfortheconstruction,testingandperformanceofelectricallyoperatedrefrigerantfixedgasdetectionequipmentinsafetyapplications.ThisdocumentdoesnotspecifyrequirementsforportablelocatingleakdetectorsforrefrigerantapplicationasalreadycoveredbyEN14624:2012.

Thisdocumentisapplicabletoequipmentwhoseprimarypurposeistoprovideanindication,alarmand/orotheroutputfunctiontowarnofthepresenceofrefrigerantgasesinanindustrialorcommercialenvironmentand,insomecases,toinitiateautomaticormanualprotectiveactions.Itisapplicabletoequipmentinwhichthesensorautomaticallygeneratesanelectricalsignalwhengasispresent.

Thisstandarddoesnotapplytogasdetectionequipment:

一fornon-refrigerantapplication;

一usedforairpollutionmonitoring;

一samplingsystems,whicharenotintegralpartofthegasdetectionequipment;

一openpathgasdetection;

一residentialapplications;—processcontrol;

一forapplicationsinmines;

一portablelocatingleakdetectorsforrefrigerantapplication.

2Normativereferences

Thefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.

EN378-1:2016,Refrigeratingsystemsandheatpumps-Safetyandenvironmentalrequirements-Part1:Basicrequirements,definitions,classificationandselectioncriteria

EN45544-1,Workplaceatmospheres-Electricalapparatususedforthedirectdetectionanddirectconcentrationmeasurementoftoxicgasesandvapours-Part1:Generalrequirementsandtestmethods

EN45544-2,Workplaceatmospheres-Electricalapparatususedforthedirectdetectionanddirectconcentrationmeasurementoftoxicgasesandvapours-Part2:Performancerequirementsforapparatususedforexposuremeasurement

EN45544-3,Workplaceatmospheres-Electricalapparatususedforthedirectdetectionanddirectconcentrationmeasurementoftoxicgasesandvapours-Part3:Performancerequirementsforapparatususedforgeneralgasdetection

EN45544-4,Workplaceatmospheres-Electricalapparatususedforthedirectdetectionanddirectconcentrationmeasurementoftoxicgasesandvapours-Part4:Guideforselection,installation,useandmaintenance

EN60079-29-1:2016,Explosiveatmospheres-Part29-1:Gasdetectors-Performancerequirementsofdetectorsforflammablegases

IEC60335-2-40,Householdandsimilarelectricalappliances-Safety-Part2-40:Particularrequirementsforelectricalheatpumps,air-conditionersanddehumidifiers

EN50676:2019(E)

6

Forthepurposesofthisdocument,thetermsanddefinitionsgiveninEN60079-29-1,EN45544seriesandthefollowingapply.

ISOandIECmaintainterminologicaldatabasesforuseinstandardizationatthefollowingaddresses:

·IECElectropedia:availableat

/

·ISOOnlinebrowsingplatform:availableat

/obp

3.1Gasproperties

3.1.1

refrigerant

fluidusedforheattransferinarefrigeratingsystem,whichabsorbsheatatalowtemperatureandalowfluidpressureandexpelsheatatahighertemperatureandahigherpressureusuallyinvolvingchangesofthestateofthefluid

3.1.2

halocarbonandhydrocarbon

either:

—CFC:fully-halogenatedhalocarboncontainingonlychlorine,fluorineandcarbon;

一HCFC:halocarboncontaininghydrogen,chlorine,fluorineandcarbon;

一HFC:halocarboncontainingonlyhydrogen,fluorineandcarbon;

—PFC:fullyfluorinatedhalocarboncontainingonlyfluorineandcarbon;

一HC:hydrocarboncontainingonlyhydrogenandcarbon[SOURCE:EN378-1:2016,3.7.14]

3.1.3

hydrocarbon

containsonlyhydrogenandcarbon

3.1.4

globalwarmingpotential

GWP

climaticwarmingpotentialofagreenhousegasrelativetothatofcarbondioxide(CO2'),calculatedintermsofthe100-yearwarmingpotentialofonekilogramofagreenhousegasrelativetoonekilogramofCO2

3.1.5

poison

poisonforsensors

substancewhichleadstotemporaryorpermanentlossofsensorsensitivity

3.1.6

referencevalue

valueusedasthebasistospecifyrequirementssuchasmeasuringrange,resolutionandalarmsetpoint

3.1.7

measuringrange

rangeofmeasuredvaluesofgasconcentrationoverwhichtheaccuracyoftheequipmentlieswithinspecifiedlimits

EN50676:2019(E)

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groupofgases

definedbythemanufacturertobemeasuredwithonepieceofequipmentwithoutmodificationofhardwareorsoftwarewhichcanberepresentedbyareferencegasalsodefinedbythemanufacturer

3.1.9

referencegas

representativegasofagroupofgases

Note1toentry:Onlythereferencegasisspecificallytestedincorrespondencewiththeperformancerequirementsofthispresentstandard.

3.1.10

correctionfactor

factordefinedbythemanufacturertoconvertthemeasurementvaluesofagivengasfromagroupinrelationtothedefinedreferencegas

3.1.11

acute-toxicityexposurelimit

ATEL

maximumrecommendedrefrigerantconcentrationdeterminedinaccordancewithEN378-1andintendedtoreducetherisksofacutetoxichazardstohumansintheeventofarefrigerantrelease

[SOURCE:EN378-1:2016,3.7.5,modified]

3.1.12

occupationalexposurelimitvalue

OELV

limitofthetime-weightedaverageoftheconcentrationofachemicalagentintheairwithinthebreathingzoneofaworkerinrelationtoaspecifiedreferenceperiod

Note1toentry:Theterm“"limitvalue”isoftenusedasasynonymfor“occupationalexposurelimitvalue”,buttheterm“occupationalexposurelimitvalue”ispreferredbecausethereismorethanonelimitvalue(e.g.,biologicallimitvalueandoccupationalexposurelimitvalue).

Note2toentry:Occupationalexposurelimitvalues(OELVs)areoftensetforreferenceperiodsof8h,butcanalsobesetforshorterperiodsorconcentrationexcursions.

3.1.13

machineryroom

spacethatisdesignedtohousecompressorsandpressurevessels

3.2Typesofequipmentandcomponents

3.2.1

gasdetectiontransmitter

fixedgasdetectionequipmentthatprovidesaconditionedelectronicsignaloroutputindicationtoagenerallyacceptedindustrystandard(suchas4mAto20mA),intendedtobeutilizedwithseparategasdetectioncontrolunitsorsignalprocessingdataacquisition,centralmonitoringandsimilarsystems,andwhichtypicallyprocessesinformationfromvariouslocationsandsourcesincluding,butnotlimitedtogasdetectionequipment

3.2.2

alarm-onlyequipment

equipmenthavinganalarmbutnotadisplayorotherdevicetoindicatethemeasuredgasconcentration

Note1toentry:InEN14624andEN378-3,thistypeofelectricalequipmentisdefinedasanindicatingfixedgasdetector.

EN50676:2019(E)

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3.3.1

timeofresponse

tx

timeinterval,whentheequipmentisinawarmed-upcondition,betweenthetimewhenaninstantaneousvariationinvolumeratioisproducedattheequipmentinletandthetimewhentheresponsereachesastatedpercentage(x)ofthefinalindication

Note1toentry:Thisdocumentreferslot90asthetimeofresponse.

3.3.2

warm-uptime

timeinterval,withtheequipmentinastatedatmosphere,betweenthetimewhentheequipmentisswitched

onandthetimewhentheindicationreachesandremainswithinthestatedtolerancesNote1toentry:ForanexampleseeFigure1.

Note2toentry:Warm-uptimeisnotapplicabletospot-readingequipment.

Key

1poweroffincleanair

2poweronincleanair

3apparatuszero

4specifiedtolerancebandonzeroindication

5warm-uptimeyindication

Xtime

Figure1—Warm-uptimeincleanair(typical)

4Generalrequirements

4.1Introduction

一TypeI:RefrigerantgasdetectionequipmentforA2,A2L,A3,B3refrigerantsandammonia(R717)aspersafetyclassinEN378-1:2016,AnnexEinaccordancewithexplosionprotection.TheequipmentshallfollowtheexistingperformancesinEN60079-29-1forrangesupto20%LFLandor0%-100%LFL.andperformancerequirementsinEN378series

EquipmentshallfulfilthegeneralrequirementsofEN60079-29-1andthethresholdsspecifiedinEN378series.

EN50676:2019(E)

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AnnexEofEN378-1:2016.PerformanceoftheequipmentshallbeinaccordancewithgeneralrequirementsinEN45544-1incombinationwithEN45544-2.andsuitableforexposuremeasurementsinworkplaceatmospheres.

EquipmentshallfulfilthegeneralrequirementsofEN45544-1inconjunctionwithEN45544-2.

一TypeII:RefrigerantgasdetectionequipmentforA1,A2L,B1,B2LrefrigerantsaspersafetyclassinAnnexEofEN378-1:2016notcoveredbyTypelorTypeII.PerformanceoftheequipmentshallbeinaccordancewithgeneralrequirementsinEN45544-1incombinationwithEN45544-3andEN378series.

EquipmentshallfulfilthegeneralrequirementsofEN45544-1inconjunctionwithEN45544-3andthethresholdsspecifiedinEN378series.

Followingextensionsanddeviationsfromthesegeneralrequirementsareapplicable.

4.2Construction

4.2.1General

EN60079-29-1andEN45544seriesshallapply.

4.2.2Measuringrangesandcorrectionfactor

General

ThemaximummeasuringrangeforTypeIandTypeⅢlequipmentorthereferencevalueforTypelequipmentforeachgastobemeasuredshallbeasspecifiedinTable1.

Ifareferencegasisspecifiedforagroupofgasestherelatedcorrectionfactorshallnotexceedthelimitsofmin.0,25tomax.4.

EquipmentshallcomplytothemaximumthresholdsspecifiedintheEN378series.

ForapplicationscoveredbyF-GasDirective(F-GasEU-51712014)therangeandthethresholdsshallbereferencedfromtheNationalStandards.

Table1—Measuringranges,referencevaluesandmaximumalarmthresholds

Typel

Typell

TypeI

Maximum

alarm

thresholdsa

Gas

Measuringrange

RefrigerantgasdetectionequipmentforA2,A2L,R717,A3,B3refrigerantgasesshall

followEN60079-29-1

Referencevalue

Refrigerantgas

detectionequipmentforA1,A2L,B1,B2L

shallfollowEN45544-2

Measuringrange

Refrigerantgasdetection

equipmentforA1,A2L,B1,B2L

notcoveredbytypelorllshall

followEN45544-3

EN378series

IEC60335-2-40

HC

Hydrocarbons

0%-100%LEL

0%-20%LEL

-

<25%LEL

Ammonia

0%-100%LEL

(0-150000ppm)

0%-20%LEL

(0-30000ppm)

20ppm

0ppm-5000ppm

Pre-set

<500ppm

Mainalarm

<30,000ppm

(<20%LEL)

EN50676:2019(E)

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Typel

Typell

TypeⅢll

Maximum

alarm

thresholdsa

Carbon

Dioxide

5000ppm

0ppm-50000ppm

Halogenated

0%-100%LL

0%-20%LEL

0ppm-5000ppm

aAlarmvalue(threshold)shallbesetbelowthevaluereportedinthecolumn,asreferencetotheStandardsmentioned

Selectablerange

EN60079-29-1andEN45544seriesandthresholdsasEN378seriesshallapply.

4.2.3Alarmsignal

EN60079-29-1andEN45544seriesshallapply

4.2.4Faultsignal

EN60079-29-1andEN45544seriesshallapply.

4.3Adjustments

EN60079-29-1andEN45544seriesshallapply.

4.4Gasdetectiontransmitterforusewithseparategasdetectioncontrolunits

EN60079-29-1andEN45544-1shallapply.

4.5Separategasdetectioncontrolunitsforusewithgasdetectiontransmitter(s)

EN60079-29-1andEN45544-1shallapply.

4.6Equipmentusingsoftwareand/ordigitaltechnologies

EN60079-29-1andEN45544seriesshallapply.

4.7Labellingandmarking

4.7.1General

EN60079-29-1andEN45544seriesshallapply

Theequipmentshallbemarkedlegiblyandindeliblyadditionalwith:

一“EN"inconjunctionwith“50676”forthecontrolunitsand"EN”inconjunctionwith“50676”,followedbyTypeI,TypellorTypeII(torepresentconformitywiththisstandard)forgasdetectors.

4.7.2Typesandelectricalprotection

General

EN60079-29-1andEN45544seriesshallapply.

Displayandotherdevicesforindicationofmeasuredvalues

EN60079-29-1andEN45544seriesshallapply.

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EN60079-29-1andEN45544seriesshallapply.

Indicatorlight

EN60079-29-1andEN45544seriesshallapply.

4.8Instructionmanual

EN60079-29-1andEN45544seriesshallapply.

Eachpieceofequipmentshallbeprovidedwithaninstructionmanualthatincludealladditionalinstructions,drawingsanddiagramsforsafeandproperinstallation,commissioning,operation,maintenanceanddecommissioningoftheequipmentincludinganyinformationforuseofequipmentasaTypel,Typelland/orTypeIlinrefrigerantapplications.

Additionalinformationthatdescribesthesensitivities(andvariabilityofsensitivity)toothergasestowhichtheequipmentisresponsiveshallbeaddedandalsothereferencegasandthecorrectionfactorsifclaimedoneasrepresentativeofagroupofgases.

Explicitrestrictionofthetemperaturerangeto-20℃foranyequipmentwhichhasnotbetestedforverylowtemperatureapplicationsaccordingto5.5.6.

5Testmethods

5.1Introduction

TypeIequipmentshallbesubjectedtothetestmethodsandacceptancecriteriadescribedinEN60079-29-1.

ForTypelequipmentforammoniawithmeasuringrangesupto20%LELitshallbesufficienttomeettheperformancerequirementsforequipmentwithmeasuringrangesupto100%LEL.Acceptancecriteriashallbecalculatedwiththevalue100%LELforthemeasuringrange.

TypellequipmentshallbesubjectedtothetestmethodsandacceptancecriteriadescribedinEN45544-1inconjunctionwithEN45544-2.

TypeIlequipmentshallbesubjectedtothetestmethodsandacceptancecriteriadescribedinEN45544-1inconjunctionwithEN45544-3.

5.2Generalrequirementsfortests

EN60079-29-1andEN45544seriesshallapply.

Deviationsoftheperformancerequirementsshallbereportedintheinstructionmanualclearly

5.3Samplesandsequenceoftests

5.3.1Testsamples

EN60079-29-1andEN45544seriesshallapply.

5.3.2Sequence

EN60079-29-1andEN45544seriesshallapply.

5.3.3Gasdetectiontransmitters

EN60079-29-1andEN45544seriesshallapply.

5.3.4Separatecontrolunits

EN60079-29-1andEN45544seriesshallapply.

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EN60079-29-1andEN45544seriesshallapply.

5.3.6Maskforcalibrationandtest

5.4Normalconditionsfortest

5.4.1General

EN60079-29-1andEN45544seriesshallapply.

5.4.2Testgas(es)

EN60079-29-1andEN45544seriesshallapply.

5.4.3Standardtestgas

EN60079-29-1andEN45544seriesshallapply.

Ifthemanufacturerclaimstocoveragroupofgasesthereferencegasmentionedshallbeusedasstandardtestgas.

5.4.4Flowratefortestgases

EN60079-29-1andEN45544seriesshallapply.

5.4.5Powersupply

EN60079-29-1andEN45544seriesshallapply.

5.4.6Temperature

EN60079-29-1andEN45544seriesshallapply.

5.4.7Pressure

EN60079-29-1andEN45544seriesshallapply.

The120kPapressurelevelmaybeomittediftheinstructionmanualspecifiesthatequipmentisnotintendedforuseforabove110kPapressurelevel.

Forbelowgroundapplicationsthepressurelevelmayexceed110kPa

5.4.8Humidity

EN60079-29-1andEN45544seriesshallapply.

5.4.9Acclimationtime

Ineachinstancewheretheequipmentissubjectedtoadifferenttestcondition,theequipmentshallbeallowedtoacclimatizeunderthesenewconditionsbeforemeasurementsaretaken.

EN60079-29-1andEN45544seriesshallapply.

5.4.10Orientation

Theequipmentshallbetestedintheorientationrecommendedintheinstructionmanual.

EN60079-29-1andEN45544seriesshallapply.

5.4.11Communicationsoptions

Forequipmenthavingcommunicationsoptionsusedduringnormalgasdetectionoperation,testin5.5.3,5.5.9and5.5.18shallbeperformedwithallcommunicationportsconnected.Themaximumtransactionrate,cablingcharacteristicsandactivitylevelspecifiedintheinstructionmanualshallbeemployed.

EN60079-29-1andEN45544seriesshallapply.

EN50676:2019(E)

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Forgasdetectionequipment,whicharepartofsystems,testsin5.5.3,5.5.9,5.5.18,5.5.19andPowersupplyvariationsshallbeperformedwiththemaximumsystemcommunicationstransactionrateandactivitylevel.Thisshallcorrespondtothelargestandmostcomplexsystemconfigurationpermittedbytheinstructionmanual.

EN60079-29-1andEN45544seriesshallapply.

5.5Tests

5.5.1General

EN60079-29-1andEN45544seriesshallapply.

5.5.2Unpoweredstorage

EN60079-29-1andEN45544seriesshallapply.

5.5.3Calibrationandadjustment

Introduction

EN60079-29-1andEN45544seriesshallapply.

Calibrationcurve

Ifthemanufacturerclaimstocoveragroupofgasesthistestshallbeperformedwithallgasesofthegroup.Fromthemeasurementsforeachgasthecorrectionfactorsaccordingtothereferencegasshallbecalculatedusingforeachcalibrationcurve:anykindoftransferfunction,accordingtothemanufacturerinstructions.

Additionalacceptancecriteria:EN60079-29-1andEN45544shallapplyforeachgasandcorrectionfactorshallbebetween0,25and4.

Responsetodifferentgases

EN60079-29-1andEN45544seriesshallapply.

Ifthemanufacturerclaimstocoveragroupofgasesthistestshallbeperformedwithallgasesofthegroup.Theratiobetweentheindicationoftheequipment(beforecorrectionusingthemanufacturer'sresponsecorrectionfactors)andthegasvolumefractionobtainedforeachofthethreegasvolumefractionsofeachgastestedshallnotbelessthan0,25andshallnotexceed4,0.

5.5.4Stability

EN60079-29-1andEN45544seriesshallapply.

5.5.5Alarmsetpoint(s)

General

EN60079-29-1andEN45544seriesshallapply.

Lowvoltageandpowerinterruption

EN60079-29-1andEN45544seriesshallapply.

Fieldwiringfaults

.1General

EN60079-29-1andEN45544seriesshallapply.

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EN60079-29-1andEN45544seriesshallapply.

Sensordisconnection

EN60079-29-1andEN45544seriesshallapply.

AutomaticallyAspiratedEquipmentEN60079-29-1andEN45544seriesshallapply.

5.5.6Temperature

EN60079-29-1andEN45544seriesshallapply.

Equipmentdesignedforapplicationsatextendedlowtemperaturelevels(below-20℃)shallbetestedat-40℃additional.

Deviationsoftheperformancerequirementsshallbereportedintheinstructionmanualclearly.

5.5.7Pressure

EN60079-29-1andEN45544seriesshallapply.

Notapplicable.SeeNote5.4.7

5.5.8Humidityoftestgas

EN60079-29-1andEN45544seriesshallapply.

5.5.9Airvelocity

Notapplicable

5.5.10Flowrateforaspiratedequipment

EN60079-29-1andEN45544seriesshallapply.

5.5.11Orientation

EN60079-29-1andEN45544seriesshallapply.

5.5.12Vibration

EN60079-29-1andEN45544seriesshallapply.

5.5.13Warm-uptime

EN60079-29-1andEN45544seriesshallapply.

5.5.14Timeofresponse

EN60079-29-1andEN45544seriesshallapply.

ForTypeⅢ≤requirementsTableA1.ForothergasesnotinTableA.1,t(50)inlessthan60st(90)inlessthan150swithaprobe:+3spermetre

5.5.15Timeofrecovery

Notapplicable

5.5.16Highgasconcentrationoperationabovethemeasuringrange

EN60079-29-1andEN45544seriesshallapply.

EN50676:2019(E)

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EN60079-29-1andEN45544seriesshallapply.

5.5.18Electricaltests

EN60079-29-1andEN45544seriesshallapply.

5.5.19Fieldcalibrationkit

EN60079-29-1andEN45544seriesshallapply.

5.5.20Verificationofsoftwareanddigitalcomponents

EN60079-29-1:2016,4.9,andEN45544seriesshallapply.

5.5.21Resistantagainstpoisoningeffectstothesensorbythegastobemeasure

Table2—Testgasforthepoisongastest

Measurement

technology

HC

ChlorinatedorbromatedorfluorinatedHCs

Infra-red

not