Elster TRZ2 User manual

Instruction Manual
Turbine Gas Meters and Quantometers
Type TRZ2 · Q
Betriebsanleitung
Turbinenradgaszähler und Quantometer
Type TRZ2 · Q
Mode d’emploi
Compteurs de gaz à turbine et quantomètres
Type TRZ2 · Q
Manual de instrucciones
Contadores de gas de turbina y cuantómetros
Modelos TRZ2 · Q
Istruzioni d’uso
Contatori gas a turbina e quantometri
Tipo TRZ2 · Q
Installatie voorschrift
Turbinegasmeters en quantometers
Type TRZ2 · Q

Instruction Manual
Turbine Gas Meters and Quantometers
Type TRZ2 · Q
Betriebsanleitung
Turbinenradgaszähler und Quantometer
Type TRZ2 · Q
Mode d’emploi
Compteurs de gaz à turbine et quantomètres
Type TRZ2 · Q
Manual de instrucciones
Contadores de gas de turbina y cuantómetros
Modelos TRZ2 · Q
Istruzioni d’uso
Contatori gas a turbina e quantometri
Tipo TRZ2 · Q
Installatie voorschrift
Turbinegasmeters en quantometers
Type TRZ2 · Q
Español EnglishDeutschFrançaisItalianoNederlands

Instruction Manual
Turbine Gas Meters and Quantometers
Type TRZ2 · Q
English

Elster-Instromet
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Contents
1. Intended Use and Field of Application ................................................................................ 4
2. Technical Data ...................................................................................................................... 5
3. OperatingLocation ............................................................................................................. 6
4. Staff .................................................................................................................................... 7
5. LegalDeclarations ............................................................................................................... 7
6. Installation / Connection ..................................................................................................... 7
7. Pulse Generators ................................................................................................................ 9
8. Pressure Test Point ........................................................................................................... 10
9. Temperature Test Points ................................................................................................... 11
10. Index Versions ................................................................................................................... 12
11. Commissioning................................................................................................................... 14
12. MaintenanceandLubrication ............................................................................................. 15
13. Care,CleaningandSpareParts ......................................................................................... 16
14. Decommissioning ............................................................................................................... 16
15. Recycling and Environmental Protection .......................................................................... 16
16. Annex A
ATEX Approvals ................................................................................................................ 17
17. Annex B
Plastics Used .................................................................................................................... 18
English

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1. Intended Use and Field of Application
This product is intended
for calibratable volumetric metering using turbine gas meters and for non-calibratable volu-
metric metering using quantometers of
– ammablegases:naturalgas/towngas/propane/butane,
– non-ammablegases:air/nitrogen/inertgases
– and is suitable for use in potentially explosive atmospheres of Category 2 (Zone 1) of Class
EX II 2 G c IIC T4.
Othereldsofapplication/mediaonrequest.
Thepermittedgasandambienttemperatureistm=-25°Cto+70°C,unlessotherwisespecied
on the main plate (index plate).
The storage temperature is -25°C to +70°C.
The meters are suitable for mechanical ambient conditions of Class M1 of the Directive. For
meterswithanencoderindex,ClassE2forelectromagneticambientconditionsalsoapplies.
This product is not intended
– formeteringaggressivegases,e.g.biologicallyproducedmethaneorsewagegases,oxy-
gen,acetylene,hydrogen.
Turbinegasmeterwithvolumecorrector(optional)
1 Meter housing
2 Measuring cartridge
3 Index
4 HF pulse generators
5 LFpulsegenerator
6 Pressuretestpointwithtwo-waycock
7 Temperature test point
8 Electronic volume corrector (optional)
PleasecontactyourElster-InstrometCustomerServiceforassistanceincommissioning,mainte-
nanceandinstallationofencoders,pulsegeneratorsandvolumecorrectorsforinstance.
1
2
3
4
5
6
7
8

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2. Technical Data
Turbine gas meters and quantometers inaccordancewithDINEN12261
Type TRZ2 Q
Dimensions G65 – G1000 Q65 – Q1000
Nominalsize DN50–DN150
Pressure rating PN10–100/Class150–600
Housing material Spheroidalgraphitecastiron,steel
Temperature ranges
– gas (EC)
– ambient/storage (EC)
– gas/ambient/storage (MID)
-25°C to +70°C
-25°C to +70°C
-25°C to +70°C
-25°C to +70°C
-25°C to +70°C
The nominal operating conditions can be found on the labels on the index head.
Pulse generators
LFpulsegeneratorIN-Sxx/IN-Wxx HFpulsegenerator(inaccordancewithDINEN60947-5-6)
Ui= 24 V Urated = 8 V DC
Ii
= 50 mA I≥2.1mA(exposed)I≤1.2mA(covered)
Pi = 0.25 VA U < 5.9 V (exposed) U > 6.8 V (covered)
Ri =100Ω(seriesresistor) Ri=1kΩ
Temperature range -40°C to +70°C -25°C to +70°C
Absolute ENCODER S1
AbsoluteENCODERS1–index
Numberofdigitrollers 8
Temperature range -40°C to +60°C
Protection class IP 67
Interfaces (ATEX approval) NAMUR(II2GEExiaIICT4)or
SCR/SCR+ (II 2 G EEx ib IIB T4) or
M-Bus
LFpulsegenerator Optionalorretrottable,
allIN-Sxxvariants,IN-W11
Ui=24V,Ii =50mA,Pi =0.25VA,
Ri =100Ω(seriesresistor)
English

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3. Operating Location
The minimum length of the inlet section for TRZ2 must be at least twice the nominal di-
ameterforreasonsrelatingtomeasurementaccuracy.Aninletsectionof≥5xDNisrequired
forTRZ2DN50.
Theinletsectionmustbedesignedasastraightpipesectionwiththesamenominaldiameter
as the meter.
Thelengthoftheoutletsectionisatleast1xDNofthesamenominaldiameter.
Flowdisturbances
resultingfrom:
Typical
inlet sections
Pipe sections in-
stalled at a distance
of 2D upstream of
the meter inlet
TRZ2
PTB approval
symbol
Q
Minor disturbances
– single manifolds
–twinmanifolds
– diffuser and
– contractors
L≥2D
Noowconditioner
L≥5D
Major disturbances
– pressure regulators
for gas
– other restrictor
devices
L≥2D
Noowconditioner
L≥5D
Flowconditioner
recommended
If you…
– wishtomixin odorization agents or
– use solenoid valves,
pleasealwaystthemonlydownstream of the meter.Otherwise,theunitmaybedamaged.
D97
7.211.17
7. 2 1 1
97.10
DE-09-MI002-PTB001

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The flow through the meter must be free of vibrations/pulsations in order to avoid measuring errors.
Compliancewiththespeciedoperating and ambient conditions as indicated on the type label
is absolutely essential for safe operationofthemeterandadditionalequipment.
The gas may not contain suspended particles > 50 µm.In addition, the gas must be dry.
Otherwise,themetermaybedamaged.
Inthecaseofnewinstallations,werecommendtemporarilyinstallingaconestrainer(meshsize
250 μm) to protect the meter. The strainer should be removed after approximately 4 weeks.
Themetermustbeincludedintheequipotentialbondingsystemofthepipework.
4. Staff
These Instructions are aimed at staffwhohaveadequatespecialistandtechnicalknowledge
(inGermany,forinstance,inaccordancewithDVGWCodesofPractice492and495orcompa-
rable technical regulations) on the basis of their training and experience in the sector of energy
and gas distribution.
Attention: incorrect use can be fatal!
5. Legal Declarations
– DeclarationofConformity–enclosedandavailableonlineatwww.docuthek.com.
– Periodofvalidityofcalibration–thisisbasedontheregulationsofthecountryconcerned,
wheretheturbinegasmeterwillbeused.
6. Installation / Connection
Warning! Never clean the plastic cover of the index with a dry cloth owingto the risk of ex-
plosion resulting from electrostatic discharge! Please only ever use a cloth that has been
adequatelymoistenedwithwater!
Before installationpleaseensure:
– that the protective caps and/or plastic sheeting is or are removed,
– that the meter and accessories have been inspected for transport damage and
– thattheaccessorieshavebeencheckedforcompleteness(e.g.plugconnectors,oilforinitial
lling).
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You will requirethefollowingitemsforinstallation:
– suitable seals/gasketsfortherelevantgases,e.g.inaccordancewiththefollowingtable:
DN d1
(mm)
The following seals and gas-
kets, amongst others, are
suitable:
–atseals,
–spiral-woundgasketsand
–groovedsealsandgaskets
50 62
80 100
100 125
150 178
– connection elementssuitableforoperationinaccordancewiththetablesbelow:
Hexagon screws and nuts for flanges inaccordancewithDINEN1092-1
Material/strength class Operatinglimits Standards
Screw Nut
5.6 5 up to 40 bar
downto-10°C
DINISO4014
DINISO4032
8.8 8
CK35 CK35 up to 100 bar
downto-10°C DIN2510
25 Cr Mo4 25 Cr Mo4 up to 100 bar
downto-25°C EN10269
Stud bolts with continuous thread for flangesinaccordancewithASMEB16.5
Material/strength class Operatinglimits Standards
Bolt Nut
A193B6 A 194 Gr. 6 up to 100 bar
downto0°C
ASME B 1.1
A193B7 A 194 Gr. 2H up to 100 bar
downto-50°C
Otherequivalentmaterialsmayalsobeused.

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Then install the meter
– gas-tight,
– withthesuppliedaccessories,
– only in flow direction(asmarkedbyanarrowonthemeterhousing),
– only unstressed and
– preferably in horizontal positionwiththeindexatthetop.
The permitted installation/operating positions of the meter are specified on the main
plateinaccordancewiththedesignations“H”,“V”or“H/V”(H=horizontal,V=vertical)
representedinaccordancewithDINEN12261.Ifyouhavespeciedtheinstallationorop-
eratingpositionwhenordering,allattachmentswillhavebeenttedinaccordancewiththe
installationpositionex-works.
 Ifyouwishtoinstall the unit vertically at a later pointandifanoilpumpispresent,theoil
pumpmustalsobettedvertically.Ifthisisnotthecase,youmustturntheoilpumpand
itsoilconnectionlineandanyotherattachments,e.g.volumecorrector,through90°before
installing the meter.
 WerecommendthatyoucontactourCustomerServiceforsuchconversionwork.
– weatherproof.
– Whenttingthesealsandgaskets,ensurethattheyarealigned concentrically and do not
projectintotheowchannel.
7. Pulse Generators
TypeIN-SxxorIN-WLF pulse generators may be plugged
onto the side of the index cover for volume pulse output to
external devices (e.g. a volume corrector).
Fitthepulsegenerator(ifrequired)asfollows:
– Slide both guidesoftheIN-Spulsegeneratorintothe
guide slot on the index cover until the guides can be
heardtoengage(clickingsound).
– Assign the terminalsonthepluginaccordancewith
the pin assignment on the meter/pulse generator.
– Use a screened cable to the external device.
You can use HF pulse generators (Types A1R and A1S)
forhigherfrequencies(ifavailable).HFpulsegeneratorsare
screwedintothemeterhousingpressure-tight.However,the
connection plug can be turned.
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– Assign the terminalsonthepluginaccordancewiththepinassignmentontheunit.
– Use a screened cable to the external device.
Pulse generators for subsequent installation are also available (only if bore holes have been
provided in the housing).
HF pulse generators (Type A1S) can, however, be tted only by the Customer Service.
Bycontrast,youcanconnecttheplugyourself,asdescribedabove.
Warning! All pulse generators are intrinsically safe and may only be connected to intrinsically
safe circuitswhenusedinpotentially explosive atmospheres. The safety barriers must com-
plywiththerequirementsofignitionprotectionEEx ib IIC(seealsomarkinginAnnexA).
Thedevicemustnotbeinstalledonexternalsourcesofhighorlowtemperatureswhosetem-
peraturewouldresultinahigherorlowerambienttemperatureforthedevicethanthepermitted
ambient temperature range.
8. Pressure Test Point
Astraightmalecoupling in accordancewithDIN 2353 is pre-ttedonthemeterhousingfor
measuring the reference pressure.
The pressure test pointismarkedP
m
/P
r
and is designed for connection of d = 6 mm steel tubes
inaccordancewithDINEN10305-1(e.g.steelgradeE235)orexibleElsterpressuretubes.
Important: do not connect the straight male coupling to pipes made of stainless steel or pipes
made of nonferrous materials.
Note:werecommendthatyouuseoriginalParker-Ermetopipeunions.
Functional safety and reliability are ensured only if the material combination of the union compo-
nent and the pipe are intermatched.
WerecommendthatyoucontactourCustomer Serviceforconversionworkandwheninstalling
additional devices.

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9. Temperature Test Points
Youcanuseamaximumoftwotemperature sensors for meas-
uring the gas temperature in the meter housing for the meter
sizes listed in the table below (quantometers cannot be tted
withthermowellsinthemeterhousing;onTRZ2thermowellsare
optionaluptonominaldiameterDN150):
Max.
sensor
dia.
TRZ2
DN
Housing
material
PN10/16
EBL
PN25/40 Class
150
Class
300
Class
600
6 mm
50 GGG — — — — —
ST—————
80 GGG 45 (2x) — 45 (2x) — —
ST 45 (2x) 45 (1x) 45 (2x) 45 (1x) 45 (1x)
80/100 GGG 58 (2x) — 58 (2x) — —
ST 58 (2x) 58 (1x) 58 (2x) 58 (1x) 58 (1x)
100 GGG 50 (2x) — 50 (2x) — —
ST 50 (2x) 50 (1x) 50 (2x) 50 (1x) 50 (1x)
100/150 GGG 67 (2x) — 67 (2x) — 67 (2x)
ST 67 (2x) 67 (2x) 67 (2x) 67 (2x) 67 (2x)
150 GGG 50 (2x) — 50 (2x) — —
ST 50 (2x) 50 (2x) 50 (2x) 50 (2x) 50 (2x)
GGG=Spheroidalgraphitecastiron;ST=Steel
EBL=Roundedinstallationlengthofthethermowellinmm
Notethattemperaturemeasurementonmeasurementsystemsintheopenairmaybeinuenced
bytheambienttemperature.Forthisreason,themetering elements outside the pipe should
be adequately insulatedagainstambienttemperatureinuences. In order to achieve optimum
thermalconduction,youshouldalsoalwaysllthethermowell(s)withaheat-conductiveuidor
paste.
Ifnotemperaturetest points inthemeterhousingarescheduled,the temperature must be
measured in the pipe downstream of the turbine gas meteratadistanceofupto3xDN,but
max.600mmaway.
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10. Index Versions
Themetercanbeequippedwithvariousindexversions:
Index S1
– Thisisthestandardversionwithan8-digit
mechanical roller index.
– Provides universal read-off.
– Canberotatedupto355°aboutitsaxis.
– Suitable for outdoor installation.
– DesignedforLFpulsegeneratorswhichcanbeplugged
onfromthe outside and which canbe exchangedon
site.
Index S1V (optional)
– This has the same features as index S1.
– The mechanical roller index can be read off from the
top.
Index MI-2 (optional)
– This has the same features as index S1 or S1V.
– Aluminium cover.
– Canbeoptionallyttedwithamechanicalindexdrive
pointingupwardsorbackwardsinaccordancewith
 EN12480.
– DesignedforLFpulsegeneratorswhichcanbeplugged
onfromtheoutside and whichcan be exchangedon
site.
– Fittedwithadessicantcartridge.
The service life is dependent on the conditions of use (mini-
mum service life 12 months).
Replace the dessicant cartridge if the colour has changed
frombluetopink.
S1
S1V
MI-2

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Absolute ENCODER S1 (optional)
– This has the same features as index S1.
– Can be used as main index on gas meters.
– Available as a top-mounted unit (transmitter unit) on
meterswithmechanicalindexdrive(MI-2).
– The encoder is suitable for connection to a series-
connected additional device (volume corrector, data
logger or bus system) in potentially explosive atmos-
pheres(seetable:TechnicalData).Adeviceconnected
totheterminalboxmustfeatureatleastthefollowing
approvalasanassociatedapparatusforthis:
[ Ex ia IIC ]forversionwithNamurinterface,
[ Ex ib IIC ]forversionwithSCR/SCR+interface,
[ Ex nA [ic] IIC ]forZone2installation(Namur/SCR/SCR+interface).
 TheversionwithM-BUSinterfaceisnotATEXapproved.
Connection of the Absolute ENCODER S1 unit to the mechanical index drive of the meter
– Connect the connector of the top-mounted unit to the mechanical index drive of the driving
unit(e.g.MI-2,ensurethesteeldiscisremovedfromtheconnector).
– Usealockingscrewtosecuretheencodertop-mountedunitagainstpullingout.
– Thelockingscrewmustbelead-sealedforapplicationsrequiringmandatorycalibration.
Connection of the encoder
– Use only a screened cable
(DINEN60079-14)toconnectthe
encoder and ensure that the pin
assignment is correct (see sticker
next to the cover of the terminal
box).
– WhenconnectingtheNamurinterface,ensurethatthe2-wireconnectionhasthecorrect
polarity. The M-Bus and SCR/SCR+ interfaces are independent of the polarity.
– Itispossibletoapplyscreeningandtorunacabletothemeterhousingorthepipe.Make
suretocheckinadvancethatthegroundingsystemusedallowsgroundingonbothsides
(ground loops and potential difference in grounding).
English
Encodersticker

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11. Commissioning
For meters without oil pump:continuewithpoint“Placingthesystemintooperation”.
Meters with oil pumpmustbeprovidedwithinitiallubrication.
Before commissioning:
– First open the coverontheoilsupplytank.
– Filltheoilsupplytankwiththesuppliedoil.
– The oil quantityissufcientwhentheoillevelisvisibleinthestrainer.
– Operatetheoil pump as instructed in section “Maintenance and Lubrication” and only
thenclosetheoilsupplytank.
Placing the system into operation
Inordernottodamagethemeter,
– slowly fill the system until operating pressure is reached.
– The pressure risemaynotexceed350mbar/s.Youshouldalsouseabypasslineforlling
(recommendation:12mmpipediameter).
– Do not exceed the measuring rangeevenbriey!
– Conduct a tightness test!
Important!Dirtparticles,suchasweldingbeads,swarfandotherforeignbodies,maybecon-
tainedinthegasforashortwhileafterinstallation.
For this reason, always fit a coarse filter in order to avoid damage to the measuring unit. Do
not forgettoremovethecoarselterafterapprox.4–6weekssince,shoulditbecomesatu-
rated,thiswouldproduceanobstacletoow.

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12. Maintenance and Lubrication
Meters without oil pump are maintenance-free.
Meters with oil pump must be lubricated.
– You must open the cover of the supply tank
before operating the oil pump’s hand lever.
– Ensure that the supply tank has an adequate
quantityofoil.
The oil level must be visible in the strainer.
Themetermustbeoperational,i.e.themeasur-
ingwheelmustbeturning.
– Operatetheoil pump by hand by fully pulling
thehandleverdownapplyinguniformpressure.
Notethatonepullcorrespondstoonestrokeof
the pump’s piston.
– Afteroperation,youmustre-close the supply
tankrmly.
Lubricationinstructionsforturbinegasmetersandquantometers
in the case of dry natural gas
Commissioning:DN50:3strokes,DN80/DN100:5strokes,DN150:7strokes
Every3to4months:DN50:2strokes,DN80/DN100:4strokes,DN150:6strokes
Temperaturerange-10°Cto+70°C:ShellRisella917,ShellTellusT15
Temperaturerange-25°Cto+70°C:KlüberISOFLEXPDP38
Othernon-resinousandnon-acidicoilswithaviscosityofapprox.30cStokesat20°C,
solidicationpointlowerthan-30°C,orequivalentoilsmaybeused.
Forspecialgasessuchaspropaneorbutane,orinthecaseofdifcultoperatingconditions
(e.g.fullloadorcontaminatedgases),thelubricationintervalsshouldbehalved
(every 1.5 – 2 months).
Important: always ll the supply tank with oil in good time to prevent air entering the pipe
system.
Protecttheoilpumpagainsttheingressofwaterbykeepingtheoiltankrmlyclosed.
English

Elster-Instromet
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13. Care, Cleaning and Spare Parts
Cleanoffdirtonthemeteronlywithadampcloth.
Anywater-basedmediagentleontherelevantmaterialscanbeusedascleaningmedia.
Maintenance is carried out by the manufacturer (or by authorized workshops). Only original
Elster spare parts may be used.
14. Decommissioning
Slowlydecreasethepressure(max.350mbar/s).
Donotopenthecouplinguntiltheoperatingpressureiszero.
Onlyremovethemeterwhenthepipehasbeendepressurized.
15. Recycling and Environmental Protection
Elster-Instromethasreducedthetransportpackagingsofitsmeasuringinstrumentstothebare
essentials.Packagingmaterialsarealwaysselectedconsistentlywithaviewtorecycling.The
cardboarditemsusedconstitutesecondaryrawmaterialsforthepaperboardandpaperindus-
try.TheInstapak®foam packaging items are recyclable and can be reused.
Plasticsheetingandstrips/bandsarealsomadeofrecyclableplastic.AtElster-Instromet,sub-
sequentrecyclinganddisposalarealreadyelementsoftheproductdevelopmentprocess.When
selectingthematerials,weallowforreusabilityofthematerials,suitabilityofmaterialsandsub-
assembliesfordismantlingandseparation,andtherisksofenvironmentalpollutionandhealth
riskswhenrecyclinganddumpingonlandllsites.Theturbinegasmetersandquantometers
mainlyconsistofmetallicmaterialswhichcanbemelteddownagaininsteelworksandmetal-
lurgicalplantsandwhichcanthusbereusedavirtuallyunlimitednumberoftimes.Theplastics
used are listed in Annex B so that sorting and separating of the materials for the purposes of
subsequentrecyclingispossible.
Transport:
– Formeterswithoutoilpump:draintheoil.
– Protect the meter against transport damage.

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English
16. Annex A
The pulse generators used in turbine gas meters have their own ATEX approvals
(Exapprovals)andaremarkedinaccordancewiththetablebelow:
Pulse
generator
type
Designation of the
sensors
EC-type
examinationcerticate
Directive 94/9/EC
Identicationofpulse
generators
Manufacturer
LF pulse
generator
IN-S..XX
IN-W11
Reed contacts TÜV03ATEX2123
Exmarking:
II 2 G Ex ia IIC T4 Gb
Testedpursuantto:
EN60079-0:2009
EN60079-11:2007
Elster GmbH
55252Mainz-Kastel
Germany
Wiegandsensor FTZÚ 04 ATEX 0277
Exmarking:
II 2 G Ex ia IIC T6/T4
Elster s.r.o.
91601 Stará Turá
Slovakia
TÜV 01 ATEX 1776
Exmarking:
II 2 G EEx ia IIC T4
Elster GmbH
55252Mainz-Kastel
Germany
HF pulse
generator
A1R,
A1S
Inductive
proximityswitch
PTB 01 ATEX 2192
Exmarking:
II 1 G Ex ia IIC T6
IFM
Electronic GmbH
45127 Essen
Germany
Inductive
proximityswitch
(TRZDN50only)
PTB 00 ATEX 2048 X
Exmarking:
II 2 G EEx ia IIC T6
Pepperl
+ Fuchs GmbH
68307Mannheim
Germany
Absolute
ENCODER
S1
Encoder system TÜV 04 ATEX 2544
Exmarking:
Namurinterface:
II 2 G EEx ia IIC T4
SCR/SCR+interface:
II 2 G EEx ib IIB T4
M-Businterface:
no approval
Elster GmbH
55252Mainz-Kastel
Germany