NRG 16-40 NRG 17-40 NRG 19-40 NRG 111-40 Installation Instructions 810590-03 Level Electrode NRG 6-40 Level Electrode NRG 7-40 Level Electrode NRG 9-40 Level Electrode NRG -40 GESTRA Steam Systems GESTRA
NRG16-40NRG 17-40NRG 19-40NRG111-40InstallationInstructions810590-03LevelElectrodeNRG 6-40LevelElectrodeNRG 7-40LevelElectrodeNRG 9-40LevelElectrodeNRG-40
GESTRASteamSystems
GESTRA
Contents
Usagefortheintendedpurpose..............................................................................................................4Safetynote.............................................................................................................................................4Danger...................................................................................................................................................4Attention.................................................................................................................................................4PED(PressureEquipmentDirective)........................................................................................................4ATEX(AtmosphèreExplosible).................................................................................................................4
ImportantNotesPage
ExplanatoryNotes
Scopeofsupply......................................................................................................................................5Description.............................................................................................................................................5Function.................................................................................................................................................6Systemcomponents...............................................................................................................................6Design....................................................................................................................................................6
NRG6-40,NRG7-40,NRG9-40,NRG-40,step.....................................................................5NRG6-40,NRG7-40,NRG9-40,NRG-40,step.....................................................................5Attention...............................................................................................................................................5Note.....................................................................................................................................................5Tools.....................................................................................................................................................5ExamplesofinstallationNRG6-40,NRG7-40,NRG9-40...............................................................6ExamplesofinstallationNRG-40..................................................................................................7Key.......................................................................................................................................................8
Installation
NRG6-40,NRG7-40,NRG9-40,NRG-40..................................................................................7Corrosionresistance...............................................................................................................................8Sizing.....................................................................................................................................................8Nameplate/marking.............................................................................................................................8Dimensions6-40,NRG7-40,NRG9-40............................................................................................9DimensionsNRG-40......................................................................................................................0
TechnicalData
NRG6-40,NRG7-40,NRG9-40.....................................................................................................NRG-40.........................................................................................................................................Key.......................................................................................................................................................4
Design
NRG6-40,NRG7-40,NRG9-40,NRG-40................................................................................3Key.......................................................................................................................................................4
FunctionalElements
3
Emergencyoperationofwater-levellimitingsystem..............................................................................5Attention...............................................................................................................................................5
EmergencyOperation
Danger.................................................................................................................................................7Disposal................................................................................................................................................7
Decommissioning
Wiring
NRG6-40,NRG7-40,NRG9-40,NRG-40................................................................................9Aligningterminalbox............................................................................................................................9Note.....................................................................................................................................................9Wiringdiagram.....................................................................................................................................0Attention...............................................................................................................................................Tools.....................................................................................................................................................
Contentscontinued
Page
BasicSettings
CANBus...............................................................................................................................................NodeID................................................................................................................................................Attention...............................................................................................................................................Factorysetdefaultvalues.....................................................................................................................Water-levellimitingsystem...................................................................................................................3FactorysetdefaultnodeIDs..................................................................................................................3Assigning/changingnodeID................................................................................................................3Attention...............................................................................................................................................3Settingcodeswitch..............................................................................................................................4
Commissioning
Wiringcheck.........................................................................................................................................5Applymainsvoltage..............................................................................................................................5
Operation
Low-levellimiterwater-levellimitingsystem........................................................................................5Note.....................................................................................................................................................5
Malfunctions
Faultfindinglistfortroubleshooting......................................................................................................6
Annex
Declarationofconformity......................................................................................................................7
4
ImportantNotes
Danger
Whenlooseningtheelectrodesteamorhotwatermightescape.Thispresentsthedangerofseverescalding.Itisthereforeessentialnottoremovetheelectrodeunlesstheboilerpressureisverifiedtobezero.Theelectrodeishotduringoperation.Thispresentsthedangerofsevereburnstohandsandarms.Installationandmaintenanceworkshouldonlybecarriedoutwhenthesystemiscold.Iftheinternalceramicinsulationbreaks,hotsteamcanescapethroughthelateralventholeontheelectrodebody.Thispresentstheriskofseverescalding.Donotstayneartheelectrodeduringoperation.
Usagefortheintendedpurpose
UselevelelectrodestypeNRG6-40,NRG7-40,NRG9-40andNRG-40inconjunctionwithlevelswitchNRS-40orNRS-40.onlyaslow-waterlevellimiters(low-levelalarms).
Safetynote
Theequipmentmustonlybeinstalledandcommissionedbyqualifiedstaff.Maintenanceandserviceworkmustonlybeperformedbyadequatelytrainedpersonswhohavearecognizedlevelofcompetence.
PED(PressureEquipmentDirective)
TheequipmentfulfillstherequirementsofthePressureEquipmentDirective(PED)97/3/EC.Applicableinfluidsofgroupand.WithCEmarking(apartfromequipmentaccordingtosection3.3).
Attention
Thenameplateindicatesthetechnicalspecificationoftheequipment.Donotcommissionoroperateequipmentwithoutanameplate.
ATEX(AtmosphèreExplosible)
AccordingtotheEuropeanDirective94/9/ECtheequipmentmustnotbeusedinexplosion-riskareas.
5
ExplanatoryNotes
Scopeofsupply
NRG16-40LevelelectrodetypeNRG6-40S.S.jointringD7 x 3mmtoDIN7603(madeof.430),brightannealedTerminatingresistor0ΩInstallationmanual
NRG17-40LevelelectrodetypeNRG7-40S.S.jointringD7 x 3mmtoDIN7603(madeof.430),brightannealedTerminatingresistor0ΩInstallationmanual
NRG19-40LevelelectrodetypeNRG9-40S.S.jointringD7 x 3mmtoDIN7603(madeof.430),brightannealedTerminatingresistor0ΩInstallationmanual
NRG111-40LevelelectrodetypeNRG-40S.S.jointringD33x39mmtoDIN7603(madeof.430),brightannealedTerminatingresistor0ΩInstallationmanual
Description
ThelevelelectrodeNRG...-40worksaccordingtotheconductivitymeasurementprinciple.TheNRG...-40isdesignedforuseinconductiveliquidstodetecttheminimumliquidlevel:Onelevelwithoneswitchpoint.TheNRG...-40isusedincombinationwithswitchingcontrollerNRS-40orNRS-40.orfurthersystemcomponents.NRG...-40inconjunctionwiththeassociatedcontrolequipmentconstitutesawaterlevellimiterwithperiodicself-testingroutine(SMARTfunction)inaccordancewithTRD604,sheetandandENregulations.TheleveldataaretransferredfromtheelectrodeNRG...-40tothecontrolunitviaaCANbususingtheCANopenprotocol.
6
Explanatorycontinued
Function
Theconductivityoftheliquidisusedtosignaltheliquidlevel.Someliquidsareconductive,whichmeansthattheyallowanelectriccurrenttoflowthroughthem.Forthesafefunctioningofthisdeviceaminimumconductivityoftheliquidtothemonitoredisrequired.Theconductivitymeasurementmethodcandetecttwoconditions:electroderodsubmergedorexposed,meaningswitchpointreached(orexceeded)ornotyetreached.Beforeinstallation,thelengthoftheelectroderodmustbecuttotherequiredswitchinglevels,e.g.cut-outoftheburnercircuitorinterruptionoftheburner-protectioncircuit.Thesystemincorporatesanadditionalelectrodethatprovidesautomaticmonitoringoftheelectricalresistancepathbetweenthemeasuringelectrodeandtheearth.Whenthemeasuredvaluefallsbelowtheadmissibleresistancevaluetheburnershutdownisendorsedbyinterruptionoftheburnerprotectioncircuit.Atregularintervals,thelevelelectrodeNRG...-40sendsadatatelegramtotheswitchingcontrollerNRS-40.ThedatatransferiseffectedbymeansofaCANbusaccordingtoDINISO898usingtheCANopenprotocol.OneswitchingcontrollertypeNRS-40orNRS-40.canbeusedfortwolevelelectrodesNRG...-40(low-levellimitingsystem).
Systemcomponents
NRS1-40Digitalswitchingcontrollerforlow-levellimiterNRG...-40Functions:Low-levelalarm(min)Dataexchange:CANbustoDINISO898usingCANopenprotocol.
NRS1-40.1DigitalcontrolequipmentforlevelelectrodesNRG...-40(lowwater),onelevelelectrodeNRG...-4(highlevel)andasafetytemperaturelimiterTRG5-6.../TRV5-40.Functions:minalarm,maxalarm,maxtemperature(freelyconfigurablecombinatons)Dataexchange:CANbustoDINISO898usingCANopenprotocol.
URB1,URB2ControlterminalanddisplayunitFunctions:Parameterizationandvisualdisplay(LCD)Dataexchange:CANbustoDINISO898usingCANopenprotocol
Design
NRG16-40,NRG17-40,NRG19-40:Screwed¾",ENISO8-.Fig.2
NRG111-40:Screwed",ENISO8-.Fig.3
7
NRG16-40,NRG17-40,NRG19-40,NRG111-40
TypeApprovalNºTÜV·SWB/SHWS·0-403EGBAF-MUC00038800ServicepressureNRG16-40,PN40 NRG17-40,PN63 NRG19-40,PN160 NRG111-40,PN3203bar g(464psig) 60barg(870psig) 00bar g(450psig) 83bar g(65psig)at38°C at75°C at3 °C at357°CConnectionScrewed¾"BSP,ENISO8-(NRG6-40,NRG7-40,NRG9-40)Screwed"BSP,ENISO8-(NRG-40)MaterialsTerminalbox:Diecastaluminium3.6(GAlSi8Cu3)Stem:S.S..457(X6CrNiMoTi7)Measuringelectrode:S.S..440(X5CrNiMo7)Electrodeinsulation:Gylon ®(NRG6-40,NRG7-40,NRG9-40)Electrodeinsulation:PEEK(NRG-40)Lengthssupplied500mm,000mm,500mm,000mm,500mm,3000mmSensitivityofresponse> 0.5µS/cmat5°C.Supplyvoltage8 – 36VDC(comingfromNRS-40/NRS-40.)Currentconsumption35mAFuseElectronicthermalfuseTmax=85 °C,hysteresisKHysteresis-KElectrodevoltageVss
DataexchangeCANbustoDINISO898,CANopenprotocolIndicatorsandadjustorsOne0-polecodeswitchfornodeIDandbaudratesettingsOnewirelink(forswitchingbetweenelectrodeandelectrode)ElectricconnectionMsensorconnector,5poles,A-coded,Msensorjack,5poles,A-codedProtectionIP65toDINEN6059Max.admissibleambienttemperature70 °CWeightapprox..5kg
TechnicalData
8
Corrosionresistance
Whenusedforitsintendedpurposethesafefunctioningoftheelectrodewillnotbeimpairedbycorrosion.
TechnicalDatacontinued
Sizing
Theelectrodebodymustnotbesubjectedtosharpincreasesinpressure.Weldsandflangesoftheelectrodearedesignedtowithstanddynamicloading(bendingandalternatingstress).Thedimensionalallowancesforcorrosionreflectthelateststateoftechnology.
Nameplate/ marking
Fig.1
Designationoftheequipment
TÜV . SWB / SHWS.02 - 403
0525
GESTRA AGMünchener Str. 77D-28215 Bremen
18-36 V DC0,5 µS/cm>
Betriebsanleitung beachten
See installation instructions
Voir instructions de montage
Tmax = 70 °C (158 °F)
IN/OUT: CAN-Bus
PN 63
PN 160
PN 40
PmaPmaxTmaTmax
NRG 17 - 40NRG 19 - 40
NRG 16 - 40
G 3 /4 1.4571 IP65
60 bar (876 psi)275 °C (527 °F)
32 bar (464 psi)238 °C (460 °F)
100 bar (1450 psi)311 °C (592 °F)
Node ID: _ _ __ __
VS-Nr.: 08 Mat-Nr.: 392084
0525
GB Reg. Design 2 053 113US Pat . 5 719 342, 5 805 052,Design 383 403
18-36 V DC0,5 µS/cm>
Tmax = 70 °C (133 °F )
IN/OUT: CAN-Bus
PmaxPmaxTmaxTmax
NRG 111 - 40
G 1 1.4529 IP65
180 bar (2611 psi)357 °C (675 °F)
Node ID: __ __ __
Münchener Str . 77, D-28215 Bremen
SER Nr.:
GESTRA AG
TÜV .SWB / SHWS . 02 - 403
Betriebsanleitung beachten
See installation instructions
Voir instructions de montage
9
P R O D U C TD E S I G N A W A R D
MIN
Fig.2
¾"BSP,ENISO8-
500,
00
0,
500,
000
,50
0,3
000
40
337.5
85
≥8
5
b=70
TechnicalDatacontinued
DimensionsNRG16-40,NRG17-40,NRG19-40
75
mm
A.
F.
0
P R O D U C TD E S I G N A W A R D
MIN
Fig.3
"BSP,ENISO8-
500,
00
0,
500,
000
,50
0,3
000
75
40
400
36
≥8
5
b=70
30
TechnicalDatacontinued
DimensionsNRG111-40
Bei Defekt ist hier Dampfaustritt möglich!If defective steam might escape here!En cas de d éfaut, de la vapeur peut s’échapper ici!
mm
A.
F.
Fig.6
Fig.4
Fig.5
Fig.7
N 8
N0
0.5
¾"BSP,ENISO8-
∅33
Design
NRG16-40,NRG17-40,NRG19-40
E
P
F GAB
CD
A.F.
Designcontinued
Fig.8
Fig.10 Fig.12
N 8
N0
0.5
"BSP,ENISO8-
∅40
NRG111-40
AB
CD
Fig.9
Fig.11
E
P
F G
4
30
∅ 58
0
A.F.
3
KK
1 2
H
1122
33
1 2 3 5 6 74 8 910ON
1 2 3 4 5
GESTRA Steam Systems
GESTRANRG 1...-40
MAX
MAX 70°C
MAX 95%
%
IP 65
FunctionalElements
Fig.13
MAX70 °C
MAX95 %
Fig.14
NRG16-40,NRG17-40,NRG19-40,NRG111-40
HIJI
KL
O
NM
4
A Electroderod
B Bore
C Spring
D Electrodetip
E S.S.jointringD7x 3mmtoDIN7603(madeof.430),brightannealed(NRG...-40)
E S.S.jointringD33x 39mmtoDIN7603(madeof.430),brightannealed(NRG-40)
F Seatingsurface
G Electrodethread
H ScrewsM 4
I Msensorconnector,5poles,A-coded,Msensorjack,5poles,A-coded
J Cover
K Wirelink(forselecting“Electrode”or“Electrode”)
L 0-polecodeswitchforsettingnodeIDandbaudrate
M Terminalstrip
N PEconnection
O Plug
P Thermalinsulation(providedonsite),d=0mm(outsideofthermalinsulationofsteam generatingunit)
Design/FunctionalElementscontinued
Key
5
Attention
Theseatingsurfacesofthestandpipeortheflangeprovidedonthevesselmustbeaccuratelymachined,seeFig.7,Fig.12.
Donotbendelectrodetipwhenmounting. Useonlyringjoint(ofstainlesssteel.430)D7x3(D33x39forNRG-40)
toDIN7603suppliedwiththeelectrode. Donotlagelectrodebodyabovethehexagonalsection,Fig.5,Fig.9. DonotinsulateelectrodethreadwithhemporPTFEtape. Donotscrewelectrodedirectlyintoascrewedsocket,Fig.6,Fig.11. Observemin.spacingwheninstallingtheelectrode,Fig.10,Fig.15,Fig.19.
Note
Fortheapprovaloftheboilerstandpipetherelevantregulationsmustbeconsidered. Refertopages6and7fortypicalinstallationexamples.
Tools
Open-endspannerA.F.7mm Open-endspannerA.F.4mm
Installation
NRG16-40,NRG17-40,NRG19-40,NRG111-40,step1
. ScrewelectrodetipDintomeasuringelectrodeA,Fig.4,Fig.8.. Carefullydeterminerequiredmeasuringlengthofelectrode.Observemin.length,Fig.2,Fig.3.3. MarklengthofelectrodetipD.4. UnscrewelectrodetipDfrommeasuringelectrodeAandcuttip.5. AftervisualinspectionscrewelectrodetipDintomeasuringelectrodeA.SlidespringCalong
electrodetipD,sothatitsbentendcompletelyentersintosmallboreB.
Hacksaw Flatfile,mediumcut
NRG16-40,NRG17-40,NRG19-40,NRG111-40,step2
.Checkseatingsurfaces,Fig.7,Fig.12. PlaceringjointEontoseatingsurfaceFofelectrode,Fig.5,Fig.93. Applyalightsmearofsiliconegrease(e.g.Molykote®)toelectrodethreadG.4. Screwlevelelectrodeintothreadsofflangeprovidedonvesselandtightenwith
a4mmopen-endspanner.Thetorquerequiredis160Nmwhencold,forNRG-40475Nm.5. Wheninstallingtwoelectrodestogetherinoneflangeinstallthefirstelectrodeasdescribedin4.
BeforemountingthesecondelectrodeundoplugO,removePEconnectionNandstripcablelugsfromtheboard.Screwinelectrode.SlightlytightenplugO.InstallPEconnectionNandinsertcablelugs.
Molykote®isaregisteredtrademarkofDOWCorningCorp.,MidlandMichigan,USA
6
≥0
∅
0
0
DN50
∅ 0
≤90°
12
34
56
8 9
0
DN00
Fig.17
≥DN0
≥DN0
4.54.5
0 ∅0
Fig.15 Fig.16
Fig.18
¾"BSP
¾"BSP
≥0
≤30
00
≥DN0
∅ 0
¾"BSP
≤ 90°
≥0
Installationcontinued
ExamplesofinstallationNRG16-40,NRG17-40,NRG19-40
≥0
3 4
12
57
8
9
!
"
"3
Cent
red
ista
nce
1
4
9
5
¾"BSP
7
G ¾
Installationcontinued
ExamplesofinstallationNRG111-40
Fig.19Fig.20
Fig.21
∅0
DN50
12
3
56
90
0
∅ 0
≤90°
4
8
≥0
≥DN0
≥DN0
"BSP
≥DN0
2
0
45°
max.
000
"BSP
Cent
red
ista
nce
8
1FlangePN40,DN50,DIN57 FlangePN40,DN00,DIN57
2Fortheapprovaloftheboilerstandpipewithconnectingflangetherelevantregulations mustbeconsidered.
3Venthole (Provideventholeasclosetotheboilerwallaspossible)
4Highwater(HW)
5Electroderodd=8mm
6ProtectiontubeDN80
7ProtectiontubeDN00
8Electrodedistance≥4mm
9Lowwater(LW)
0ReducerDIN66-,K-88.9 x 3.- 4.4x.6W!
!ReducerDIN66-,K-4.3 x 3.6- 48.3x.9W
"Solenoidvalve
Installationcontinued
Key
9
Wiring
NRG16-40,NRG17-40,NRG19-40,NRG111-40
ImportantNoteNotethatscreenedmulti-coretwisted-paircontrolcableisrequiredfortheBUSline,e.g.UNITRONIC®BUSCANxx...mmorRE-YCYV-flxx...mm.Prefabricatedcontrolcables(withconnectorandcoupler)forconnectingtheequipmentareavailableasaccessories.Thebaudrate(datatransferrate)dictatesthecablelengthbetweenthebusnodesandthetotalpowerconsumptionofthesensordictatestheconductorsize.
UNITRONIC®isaregisteredtrademarkofLAPPKabelwerkeGmbH,Stuttgart
. UndoscrewsHandremovehousingcoverJ.Fig.13. SlackenplugOwith7mmopen-endspannerbutdonotremove.Fig.14
Theelectrodeterminalboxcannowbeturnedthrough+/– 180°.
3. Turnelectrodeterminalboxintodesiredposition(+/– 80°).4. TightenplugOwith25Nm.5.SetnodeID(seesections“BasicSettings”and“FactorysetdefaultnodeIDs”).6. Re-attachhousingcoverJandfixitbyusingscrewsH.
Thebaudrateissetviaacodeswitch.Reducebaudifcableislongerthanspecifiedinthetable.Makesurethatallbusnodeshavethesamesettings.Toprotecttheswitchingcontactsfusecircuitwith.5A(anti-surgefuse)oraccordingtoTRDregulations(.0Afor7hrsoperation).Ifamax.cablelengthofmorethan125m(upto1000m)isdesired,makesuretomodifythebaudratesettingsaccordingly.PleaserefertoFig.26onpage24formoredetails.
S8 S9 S10 Baudrate Cablelength Numberofpairsandconductorsize[mm2]
OFF ON OFF 250kBit/s 125mxx0.34
Factorysetting
ON ON OFF 5kBit/s 50m xx0.5
OFF OFF ON 00kBit/s 335m xx0.75
ON OFF ON 50kBit/s 500monrequest,dependenton
busconfigurationOFF ON ON 0kBit/s 000m
ON ON ON 0kBit/s 000m
Aligningterminalbox
Note
Wirethecontrolcableaccordingtothewiringdiagramwithconnectorandcoupling.
0
NRG 1...-40
_
1 2 3 4 5
C L S C H +
C L HC
Ω24V DC
CAN - Bus
S
1122
33
1 2 3 5 6 74 8 9 10ON
Wiringcontinued
Wiringdiagram
e. g.UNITRONIC®BUSCANxx...
e. g.UNITRONIC®BUSCANxx...
Compensatingelectrode
ElectroderodCompensatingelectrode
Wirelink Codeswitch
Terminatingresistor0Ω,twistedpaircable.
UNITRONIC®isaregisteredtrademarkofLAPPKabelwerkeGmbH,Stuttgart
Fig.22
3
5 5 5 555
+- LC HCS
Couplerwithterminatingresistor0Ω
OperatingdeviceURB
CEPCentralearthingpoint
Connectorwithterminatingresistor0Ω
ControllerNRS...LRR...TRS...
LevelelectrodeConductivityelectrodeNRG...LRG...
TemperaturetransmitterTRV...
2 1 54634 1 52 1Screen
2Voltagesupply4VDC+
3Voltagesupply4VDC-
4CANDatalineCH
5CANDatalineCL
6Terminatingresistor0Ω
Wireequipmentinseries.Star-typewiringisnotpermitted! Interlinkscreensofcontrolcablessuchthatelectricalcontinuityisensuredand
connectthemoncetothecentralearthingpoint(CEP). InaCANbusnetworkthefirstandlastequipmentmustbeprovidedwitha
terminatingresistorof0Ω.Fig.22. TheCANbusnetworkmustnotbeinterruptedwhileoperating. Aninterruptionwillresultinhigh/lowlevelalarm!
Tools
Attention
Screwdriverforcrossheadscrews,size Screwdriverforslottedscrews,size.5,completelyinsulatedaccordingtoVDE0680 Open-endspanner7mmA.F.
Wiringcontinued
BasicSettings
CANbus
AlllevelandconductivitycontrollersandassociatedelectrodesareinterconnectedbymeansofaCANbusadoptingtheCANopenprotocol.Everyitemofequipmentfeaturesanelectronicaddress(NodeID).Thefour-corebuscableservesaspowersupplyanddatahighwayforhigh-speeddataexchange.TheCANaddress(NodeID)canbesetbetween1and123.TheequipmentisconfiguredatourworksandreadyforservicewithotherGESTRAsystemcomponentswithouthavingtosetthenodeID.IfseveralsystemsofthesamekindaretocommunicateinoneCANbusnetwork,besuretoassignonenodeIDforeachindividualsystemcomponent(e.g.controller).Refertothefollowingpagesformoredetails.
ThenodeIDsoftherespectivedevicesmustbesetmanually.Refertotheinstallation&operatingmanualoftheequipmentinquestion.
Node-ID
Factorysetdefaultvalues
Thelevelelectrodefeaturesthefollowingfactorysetdefaultvalues: Baudrate:250kB/s Sensitivity:0.5µS/cmNodeID:002Configuration:Levelelectrode1,wirelinkKsetleft.
Attention
NRS1-40 NRG16-40(1) NRG16-40(2) Reserved Reserved
X X+1 X+2 X+3 X+4
1 2 3* Factorysetting
Reservedarea
NRS1-40.1 NRG16-40(1) NRG16-40(2) 3rdLimiter 4thLimiter
X X+1 X+2 X+3 X+4
1 2 3* Factorysetting
Reservedarea
3
BasicSettingscontinued
1 2
H
1122
33
1 2 3 5 6 74 8 910ON
1 2 3 4 5
Fig.23
Attention
DonotassignthesamenodeIDtwicewithintheCANbusnetwork.
Assigning / changingnodeID
IfseveralsystemsofthesamekindaretocommunicateinoneCANbusnetwork,besuretoassignonenodeIDforeachindividualsystemcomponent(e.g.controller).. UndoscrewsHandremovehousingcoverJ.
. ChangecodeswitchLsettingsasrequired.Formoreinformationrefertopage4.
3. Re-attachhousingcoverJandfixitwithscrewsH.
KL
Water-levellimitingsystem
Thewater-levellimitingsystemconsistsofoneswitchingcontrollertypeNRS-40andtwolevelelectrodestypeNRG...-40.Beforestartingthesystemmakesuretoconfigureoneofthetwolevelelectrodesaslevelelectrode2. SetwirelinkKoncircuitboardtotheright(electrode2),Fig.14 SetcodeswitchLaccordingtothetable"NodeID"
(example:003*).FormoreinformationseeFig.24and25onpage4.
FactorysetdefaultnodeIDs
NRS 1-40 ID: 001NRS 1-40.1 ID: 001NRS 1-41 ID: 006NRS 1-42 ID: 020NRS 2-40 ID: 039NRR 2-40 ID: 040LRR 1-40 ID: 050
NRG 16-40 ID: 002NRG 16-40 ID: 003NRG 16-41.1 ID: 004TRV 5-40 ID: 005NRG 16-41 ID: 007NRG 16-42 ID: 021NRG 26-40 ID: 041LRG 16-40 ID: 051
SwitchingController LevelElectrode
4
1 2 3 5 6 74 8 9 10ON
1 2 3 5 6 74 8 9 10ON
BasicSettingscontinued
Settingcodeswitch
Fig.24(Factorysetting) Fig.25(Levelelectrode2)
Fig.26(Factorysetting250kBit/s)
ONNodeID
S ONS OFFS3 4OFFS4 8OFFS5 6OFFS6 3OFFS7 64
OFFNodeID
S ONS OFFS3 4OFFS4 8OFFS5 6OFFS6 3OFFS7 64
2 3
BaudrateS8 S9 S050kBit/s
Cablelength5mOFFONOFF
OFF 5kBit/sONON 50mON 00kBit/sOFFOFF 335mON 50kBit/sOFFON 500mON 0kBit/sONOFF 000mON 50kBit/sONON 000m
L L
5
ApplypowertoswitchingcontrollerNRS-40orNRS-40..
Commissioning
MakesurethatthelevelelectrodeNRG..-40isproperlyconnectedtotheswitchingcontrollerNRS-40orNRS-40.accordingtothewiringdiagram,Fig.22
Wiringcheck
Applymainsvoltage
Attention
IfonelevelelectrodefailstooperatetheinstallationcancontinuetooperateinemergencymodeunderconstantsupervisionaccordingtoTRD40withonelevelelectrode.
.UndoscrewsHandremovehousingcoverJ,Fig.13. SetwirelinkKoftheworkingelectrodetotheleft(electrode1),Fig.143. SetnodeIDoftheworkingelectrodeto“002”,Fig.14,Fig.244. AttachhousingcoverJandtightenscrewsH.
Enterbeginningofemergencyoperationintheboilerlog. Aninstallationoperatinginemergencymodehastobeconstantlysupervised. Immediatelyreplacefaultylevelelectrode. Enterendofemergencyoperationintheboilerlog.
Operation
UseincombinationwithswitchingcontrollerNRS-40orNRS-40.inpressurizedhot-waterplantsandsteamboilersworkinginaccordancewithTRD40,TRD60,TRD604,EN95,EN953orothernationalregulations.
EmergencyOperation
Water-levellimiter,water-levellimitingsystem
Emergencyoperationofwater-levellimitingsystem
Note
Toanalyseandeliminatemalfunctionsuse“Faultfindinglistfortroubleshooting”onpage6!
6
Malfunctions
Faultfindinglistfortroubleshooting
Equipmentfailstowork–Indicationofamalfunction
Fault: Inspiteofcorrectwiringandcommissioningoftheequipmentaninterferencesignalisindicated.
Remedy: TheinterferencesignaliscausedbyH.F.interferencescomingfromtheinstallation.Forinterferencesuppressionofthevoltagesupplywesupplyferriterings,stockcode4753.The30Vsupplylinesshouldbeloopedthroughtheferriteringfivetotentimes.Ifseveralcontrollersareusedinthesystem,theycanbefedfromtheinterferencesuppressedsupplylines.Fortheinterferencesuppressionofthebuslinewesupplyhinged-shellferriterings,stockcode4754.Thehinged-shellferriteringsareclampedontothebuslineclosetotheterminalstripofthecontroller.
Levelelectrodesubmerged–Low-levelalarm
Fault: Mainsvoltagenotapplied.Remedy: Applymainsvoltage.Connectelectrodeaccordingtowiringdiagram.
Fault: Thermalfusehasbeentriggered.Remedy: Theambienttemperaturemustnotexceed70 °C.
Fault: Theelectrodehousingdoesnothaveearthconnectiontotheboiler.Remedy: Cleanseatingsurfacesandinsertmetaljointring (ofstainlesssteel.430)D7x3toDIN7603. DonotinsulatelevelelectrodewithhemporPTFEtape.
Fault: NodataexchangewithCANbus.Remedy: CheckswitchingcontrollerNRS-40.Connectlevelelectrodeaccordingto wiringdiagram.
Fault: Theinternalinsulationoftheelectroderodisdamaged.Remedy: Replacelevelelectrode.
Levelbelow“Lowwaterlevel”–nofunction
Fault: Theelectroderodshaveearthcontact.Remedy: Changeinstallationposition.
Fault: Theventholeintheprotectiontubedoesnotexist,isobstructedorflooded.Remedy: Checkprotectiontubeand,ifnecessary,provideventhole.
Fault: Theisolatingvalvesoftheexternalmeasuringpot(optionalitem)areclosed.Remedy: Openisolatingvalves.
Iffaultsoccurthatarenotlistedaboveorcannotbecorrected,pleasecontactourservicecentreorauthorizedagencyinyourcountry.
7
Declarationofconformity
Annex
WeherebydeclarethattheequipmentNRG16-40,NRG17-40,NRG19-40andNRG111-40conformtothefollowingEuropeanguidelines: LVguideline73/3/eecversion93/68/eec EMCguideline89/336/eecversion93/68/eec ATEXDirective94/9/ECof3March994 PressureEquipmentDirectivePED97/3/ECof9thMay997(providedthattheequipmentisnot excludedfromthescopeofthisdirectiveaccordingtosection3.3)
Appliedconformityassessmentprocedure:AnnexIII,ModuleBandD,verifiedbythenotifiedbody055.
Thisdeclarationisnolongervalidifmodificationsaremadetotheequipmentwithoutconsultationwithus.
Decommissioning
Danger
Riskofsevereburnsandscaldstothewholebody!Beforeremovingthelevelelectrodemakesurethatthevesselandthemeasuringpotaredepressurised(Obar)andcooleddowntoroomtemperature(0 °C).
Disposal
Removethelevelelectrodeandseparatethewastematerialsinaccordancewiththematerialspecification.Electroniccomponents(boards)mustbedisposedofseparately.Forthedisposalofthelevelelectrodeobservethepertinentlegalregulationsconcerningwastedisposal.
Bremen,3rdJanuary005GESTRAAG
Dipl.-Ing.LarsBohl(Academicallyqualifiedengineer)
QualityAssuranceManager
Dipl.-Ing.UweBledschun(Academicallyqualifiedengineer)
HeadoftheDesignDept.
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