Prosense P Series Manual de usuario

PRS‐UM

‐P‐EN‐Rev.0

1‐08.2018

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PRS‐UM‐P‐EN‐Rev.01‐08.2018

WARNING!

This manual must be carefully read by all persons who have or will have the

responsibility for installing, using or servicing this product.

Like any equipment, this product will perform as designed only if installed,

used and serviced in accordance with the manufacturer’s instructions.

Otherwise, it could fail to perform as designed and persons who rely on this

product for their safety could suffer severe personal injury or death.

The warranties made by Prosense with respect to this product are voided if the

product is not installed, used and serviced in accordance with the instructions

in this user guide. Please protect yourself and other by following them.

ImportantRemark

Thedetectorhasbeenfactory‐testedbeforedelivery,thecommissioning

afterinstallationmustincludethezero‐andspan‐adjustment.The

commissioninghastobeterminatedbyafunctiontestofthecompletegas

detectionsystem.

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PRS‐UM‐P‐EN‐Rev.01‐08.2018

Contents

ForYourSafety...........................................................................................................................................4

StrictlyfollowtheInstructionsforUse...............................................................................................4

Maintenance......................................................................................................................................4

Useinareassubjecttoexplosionhazards.........................................................................................4

Liabilityforproperfunctionordamage.............................................................................................4

IntendedUse......................................................................................................................................4

Introduction................................................................................................................................................6

Detectorbody.............................................................................................................................................7

SensorHead:..............................................................................................................................................7

Installation:.................................................................................................................................................8

Mountingthedetector:..............................................................................................................................9

Electricalconnections...............................................................................................................................10

Cabling......................................................................................................................................................11

Detectorgrounding..................................................................................................................................12

Defaultconfiguration...............................................................................................................................13

DetectorConfiguration.............................................................................................................................14

4‐20mAoutput:.......................................................................................................................................14

DetectorRS485serialcommunication:....................................................................................................14

DetectorRelaymodule:............................................................................................................................16

SystemStatus...........................................................................................................................................18

Firsttimeswitchon(Commissioning)..................................................................................................18

Calibration................................................................................................................................................19

Maintenance............................................................................................................................................20

Proactivemaintenance:........................................................................................................................20

OperationalLife:...................................................................................................................................20

Servicing...............................................................................................................................................21

Sensorreplacement:............................................................................................................................21

Sinterreplacement:..............................................................................................................................21

Sensorheadreplacement:...................................................................................................................21

Generalspecification................................................................................................................................22

Warrantystatement.................................................................................................................................23



4

PRS‐UM‐P‐EN‐Rev.01‐08.2018

For Your Safety

EnsurethatthisOperatingManualisreadandunderstoodBEFOREinstalling/operating/

maintainingtheequipment.PayparticularattentiontoWarningsandCautions.Alldocument

Warningsarelistedhereandrepeatedwhereappropriateatthestartoftherelevant

chapter(s)ofthisOperatingManual.Cautionsappearinthesections/sub‐sectionsofthe

documentwheretheyapply.

Strictly follow the Instructions for Use

Anyuseofthedetectorsrequiresfullunderstandingandstrictobservationofthese

instructions.Thedetectorisonlytobeusedforpurposesspecifiedhere.

Maintenance

ItisrecommendedtoobtainaservicecontractProsensetocarryoutallrepairs.Only

authenticProsensesparepartsshouldbeusedformaintenance.Pleasecheck“Maintenance”

sectionformoredetails.

Use in areas subject to explosion hazards

Equipmentorcomponentswhichareusedinpotentiallyexplosiveatmospheresandhave

beentestedandapprovedaccordingtointernationalorEuropeanregulationsmaybeused

onlyundertheconditionsspecifiedhere.Modificationsofcomponentsortheuseoffaultyor

incompletepartsarenotpermitted.Incaseofrepairsofequipmentorcomponents,the

nationalregulationsmustbeobserved.

Liability for proper function or damage

Theliabilityfortheproperfunctionofthedetectorisirrevocablytransferredtotheowneror

operatortotheextentthatthedetectorisservicedorrepairedbypersonnelnotemployedor

authorizedbyProsenseorifthesensingheadisusedinamannernotconformingtoits

intendeduse.Prosensecannotbeheldresponsiblefordamagecausedbynon‐compliance

withtherecommendationsgivenabove.Thewarrantyandliabilityprovisionsofthetermsof

saleanddeliveryofProsensearelikewisenotmodifiedbytherecommendationsgivenabove.

Intended Use

ThePseriesdetectorsareintendedtobeusedforstationary,continuousmonitoringfor

combustiblegas/airorvapour/airmixturesbelowtheLowerExplosionLimit(LEL)resp.below

10%oftheLELunderatmosphericconditions.Thedetectorsaremarkedbythedevice

categoriesII2G.Thuscanbeoperatedinhazardousareaswithpotentiallyexplosive

atmospheresofzones1and2.Thetypeofprotectionforgasexplosionprotectionaccording

todevicecategory2(zones1or2)isflameproofenclosureandincreasedsafety,"d".The

enclosureprotectionisIP65.

AccordingtotheATEXDirective2014/34/EUthedetectorisanassemblyconsistingofthree

components(SensorHead,enclosureandcablegland),whereallthesethreecomponentsare

typeapprovedaccordingtoATEXDirective2014/34/EUandmarkedbythedevicecategoryII

2G.Thusthisdetectorissuitabletobeoperatedinhazardousareaswithpotentiallyexplosive

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PRS‐UM‐P‐EN‐Rev.01‐08.2018

atmospheresofzone1andzone2.ThePseriesdetectorscomprisesagassensortypeEx‐

proof(protectiontypeflameproofenclosuredtype).Itmustnotbeoperatedatambient

temperatureslowerthan–20(°C).Themaximumambienttemperatureis50(°C)for

temperatureclassT6.

Nottobeusedinoxygenenrichedatmospheres

InconjunctionwiththecentralcontrollersProsensedetectorswithpreadjusted

alarmthresholdsaudibleandvisiblealarmdevicesorautomaticcountermeasures

canbeactivatedbeforethedetectedgasesorvapourscanformdangerous

flammableortoxicmixtureswithair.

Pleasebealertedinfollowingspecialconditionsmayhaveimpactonmeasuringfunctiondue

tothenatureofmeasuringmethod:



1.Veryhighgasconcentrations

InfraredandPellistorsensorsusedtodetectflammableandtoxicgases.Themeasuring

methodbasedonheatproducedbyreactiononthecatalyticoxidationofaflammablegas

whenpellistorsensorused.Incaseofhighgasconcentrationsthereisnotenoughoxygenin

thesensortoperformoxidationprocesscorrectly.Hencethemeasuringsignaldecreasesat

highgasconcentrationsandevencanleadtomeasuringsignalwithinthemeasuringrange

again.Aconnectedcontrollermustbeoperatedwithalarmdevices,outputs,andalarm

thresholdsoperatingaslatchedifthemeasuringrangeisexceeded.Inthiscasedonotreset

latchingalarmswithouthavingensuredasafeconditionbymeansofanindependentgas

concentrationsmeasurement.

2.Minimumoxygenconcentration

Themeasuringprincipleofheatofreactionneedsaminimumoxygenconcentrationof12%

byvol.,otherwisethemeasuringvalueswillbetoolowbecauseofoxygendeficiency.

3.Long‐termgassingwithmethaneatverylowtemperatures

IftheProsensePseriesflammablegasdetectorsareoperatedapplyingwithmethaneatvery

lowtemperatures,themeasuringsignalatlongtermexpositionmaydecreaseafteralarm

activationandmayleadtomisinterpretation.

Ifagasalarmoccurs,necessaryactionsneedtobetakenimmediately.Thedecreaseofthe

measuringsignalshouldnotmeanthatthegasconcentrationhasbeendecreased.We

recommendtokeepalarmsontheassociatedcontrollersandnottoresetthesealarms

withoutperformingmeasurementwithanindependentgazdetectorstomakesure

conditionsaresafe.





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PRS‐UM‐P‐EN‐Rev.01‐08.2018

Introduction

TheProsensecomprisesagasdetectorbodyandachoiceofsensorsheadsfordetecting

flammablegas,toxicgasandoxygen.TheconstructionofProsenseallowsittobeusedin

hazardousarealocations;itmayalsobeusedinotherareasnotclassifiedashazardous.



Prosensedetectorscanbeconfiguredwithawiderangeofdifferentsensorsmaybeusedto

detectabroaderrangeoftargetgases.Thedetectorcanbeconfiguredwithoptionalrelay

boardfeaturesthreeprogrammablerelaysforcontrollingexternalequipmente.g.alarms,

sirens,valvesorswitches.Thedetectorprovidesanindustrystandard3‐wire,4‐20mAsource

orsinkoutputforconnectiontoadedicatedgasdetectioncontrolsystemorPLC.



Prosensedetectorscomprisesofthemainpartsasshownbelow:







Diagram1:Explodedview



Cover

Body

Mountingplate

Lockinggrubscrew

Fieldcableentriesx2

Sensorheadsocket

Sensorheadbody

Sensorholder

Sinter

Sensorheadcab

Sinternut

Lockinggrubscrew

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PRS‐UM‐P‐EN‐Rev.01‐08.2018

Detector body

Thedetectorenclosurehasthreethreadedentries.Thetwocableentrieseithersideofthe

upperpartofthetransmitterhousingareforconnectingthepowersource,signaloutput

andrelaycontactstoassociatedsignallingequipment.Thebottomentryallowsdirect

connectionofthesensorsocket.Thereisamountingplateincorporatedintothetransmitter

housingallowingforvariousmountingconfigurationoptions.



Diagram2:DetectorbodyandSensorHeadcomponents



1:Sensorheadbody

2:Sensorholder

3:Sensorheadcap

4:Sinternut

5:Sinter

6:Junctionbox–Detectorbody

7:Wallmountingadapter

8:Junctionboxcover

Sensor Head:

TheProsensesensorheaddesignedtodedectflammable,toxicgaeseandoxygen.Theymay

includeNDIRinfrared,pellistororelektrocjemicalsensorsdependingofthetargetgasand

range.

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PRS‐UM‐P‐EN‐Rev.01‐08.2018

Installation:

Gasdetectorsshouldbemountedwhereapotentialhazardofgasismostlikelytobe

present.Thefollowingpointsshouldbenotedwhenlocatinggassensors.

 Whenlocatingdetectorsconsiderthepossibledamagecausedbynaturaleventse.g.

rainorflooding.

 Considereaseofaccesstothegasdetectorforfunctionaltestingandservicing.

 Considerhowescapinggasmaybehaveduetonaturalorforcedaircurrents.

Note:Theplacementofgasdetectorsshouldbedeterminedfollowingtheadviceofexperts

havingspecialistknowledgeofgasdispersion,expertshavingknowledgeoftheprocessplant

systemandequipmentinvolved,safetyandengineeringpersonnel.Theagreementreached

onthelocationofdetectorsshouldberecorded.

Eachgashasdifferentnaturedependingontheirdensity.Thedensityofwhichislowerthan

air,suchashydrogen,methaneorammoniathesensorheadmustbelocatedabovea

possibleleakoratthehighestpointsatwhichmajorconcentrationsofgasmaybefound.

Thegasesandvapourswithadensitygreaterthanair,thesensorheadmustbeinstalled

beneathapossibleleakoratthelowestpointsatwhichsuchgasesandvapoursmaybe

present.

Prosensemayprovidecableglandtogetherwithdetectorinregardstocustomerrequests.

ThecableglandprovidedbyProsensehasATEXcertificationandprovidesatleastIP65level

protection.Thecableglandsareonlysuitableforfixedinstallations.Cablesshallbe

effectivelyclampedtopreventpullingortwisting.Toprovidenecessaryprotectioncable

glendcouplingshouldbefixedwith20Nmtorquewhenusedwiththreesealings;18Nm

whenusedwithtwosealings;16Nmwhenusedwithonesealing.Itisthefinal

assamblers/usersresponsibilitytoensurethethreadedjointbetweencableglandandthe

enclosuremeetalltherequirementsoftheapplicablestandartsfortheassembly.Cable

glandsealingsaresuitableforthecirculartypecables.Ifothershapedcableswillbeusedthe

sealingsshouldbereplacedwithsuitableones.ThecableglandsprovidedbyProsenseare

suitabletousetemperaturerangeinwhichdetectorworks.

Prosensemayprovideplugsandadaptorstogetherwithdetectorinregardstocustomer

requests.TheplugsandadaptorsprovidedbyProsensehaveATEXcertificationandprovides

atleastIP65levelprotection.Thesepartsshouldbemountedtodetectorbodyinsuchaway

thataccidentalrotationorlooseningwillbeprevented.Itisthefinalassamblers/users

responsibilitytoensurethethreadedjointbetweenfittingandtheenclosuremeetallthe

requirementsoftheapplicablestandartsfortheassembly.Foradaptorsandplugswith

nominalsizeofthreadequalorlowerthan25mmaliminiumalloyshallnotbeused.Only

oneadaptorspermittedforeachcableentry;plugsshallnotbeusedwithadaptors.The

plugsandadaptorsprovidedbyProsensearesuitabletousetemperaturerangeinwhich

detectorworks.

9

PRS‐UM‐P‐EN‐Rev.01‐08.2018

Mounting the detector:

Thedetectorshouldbemountedverticallyasthesensorheadpointingdownwards.Detector

hastobemountedsuchthatthesensor'sgasentrancearea.



Theinstalllocation

 shouldbeisolatedfromvibration,directsunlightandhavetemperaturestability

 avoidedexternalinfluencessuchassplashingwater,oil,corrosiveaerosols

 shouldhaveatleast30cmfreespacebeneaththesensorheadtoprovide

accessibilityforcalibrationwork.

 shouldbeinairflowbetweenpossibleleakorcollectionpointandpossiblesourceof

ignition.

Prosensedonotrecommendtoinstalldetectorsto:

 directlyaboveacookingunit,

 directlyaboveasinkunit,

 closetoanextractorunit,

 outdoorwithoutprotectionagainsttherain,

 inplaceswheretemperatureisoutsidetheadmissibleoperatingrange,

 incorrosiveenvironments,

 insideairvents.

 inenvironmentswheresiliconcanbefound.



TheProsensedetectorhasanindependentmountingplateconsistingoftwomountingholes

andtwoholestoattachtodetectorbody.Themountingplatecanbeadjustableontwo

diagonalwayontodetectorbody.Thedetectormaybefixeddirectlytoasurfacemounting.

Followbelowstepstomountthedetector:

1‐ Decidewhichdiagonalwaytouseandadjustmountingplateondetectorbodyif

necessary.

2‐ Checkandmakesuremountingplateiscompletelyfixedtodetectorbody

3‐ Mountthedetectortothesurfaceviausingtwooutermountingholesonmounting

plate.



Diagram3:Detectormountingplate



Wallmountingholes

Detectorbodymountingholes

10

PRS‐UM‐P‐EN‐Rev.01‐08.2018

Themountingplateinstalledinbelowpositionatfactory:



Diagram4:Defaultinstallatonofmountingplate

Electrical connections

Caution:Allelectricalconnectionsshouldbemadeinaccordancewithanyrelevantlocalor

nationallegislation,standardsorcodesofpractice.



Prosensedetectorscanoperatebetween12‐24VDC.Theconnectionsocketlocatedon

mainboardasgivenindiagram8anddetailsgiveninbelowtable2:

Output Usage

V+ Powerinput(+)12VDC–24VDC

V‐ Powerinput(‐)12VDC–24VDC

S CurrentOutputSignal(4mA–20mA)

Tablo1:Detectoroutputportsandtheirusage

Thedetectordesignedtogive4‐20mAcurrentoutputsignal.Itisalsopossibletoget

voltageoutputviausinganadditionalresistor.Belowtable3givesrecommendedresistor

specificationstogetcorrectvoltageoutputfromdetectordependingofthepowersource

level:

DetectorPowerVDC Resistor Signallevel(4mA–20mA)

12VDC–24VDC 250Ω,tolerance%1 1VDC–5VDC

12VDC–24VDC 500Ω,tolerance%1 2VDC–10VDC

Table2:Detectorpowerandtheoutputresistor

Pleaseconsiderthecablelenghtwhenperforminginstallationinthefield.TheProsense

detectorrequiresapowersupplybetween12VDCand24VDC.Makesurethataminimum12

VDCsupplyavailableatthedetectorentranceandconsiderthevoltagedropduetocable

resistanceincaseoflongdistanceapplications.Themaximumloopresistanceinthefield

cableiscalculatedasfollows:

Rloop=(Vcontroller–Vdetectormin)/Idetector



Tabla de contenidos

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Prosense BTN Series Manual de usuario

Prosense

Prosense PQ Series Manual de usuario

Prosense

Prosense PC3 Series Manual de usuario

Prosense

Prosense PQ Series Manual de usuario

Prosense

Prosense Safevader Series Manual de usuario

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GDS GASMAX EC Manual de usuario