Lutz ST10 User manual

Translation of the
original instructions
BASIC FLOW METER
Type
ST10
SL10
LM10
UN10
VA10
HC10
HDO080
HDO120
HDO200
HDO250P
HDO250
HDO400
HDO500
Read this operating instructions before start up!
To be retained for future reference.
en

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Table of Contents
A. General ............................................................................................................................................ 4
1. Concerning this manual.............................................................................................................. 4
1.1 Terms .................................................................................................................................. 4
1.2 Target groups...................................................................................................................... 4
1.3 Associated applicable documents....................................................................................... 4
1.4 Warnings and symbols ....................................................................................................... 5
1.5 Latest state.......................................................................................................................... 5
1.6 Copyright ............................................................................................................................ 5
2. Safety .................................................................................................................................. 6
2.1 General safety information................................................................................................. 6
3. Transport and storage................................................................................................................. 7
3.1 Transport............................................................................................................................. 7
3.2 Storage................................................................................................................................ 7
4. Year of construction .................................................................................................................... 7
5. Modular Flow Meter System TS................................................................................................... 8
6. Modular Flow Meter System HDO............................................................................................... 9
B. BasicowmeterTS......................................................................................................................... 10
1. Proper use ................................................................................................................................ 10
1.1 Application in explosion hazard areas .............................................................................. 10
1.2 Technical data ................................................................................................................... 11
1.3 Maximum pressure depending on temperature of the medium...................................... 12
1.4 Complete hose system...................................................................................................... 12
1.5 Pressure surges (water hammer) ..................................................................................... 12
1.6 Pressure drop.................................................................................................................... 13
  1.7 Accuracyofmeasurementandowrate .......................................................................... 14
1.8 Liability.............................................................................................................................. 15
2. Prevention of obvious misapplication....................................................................................... 15
3. Installation ................................................................................................................................ 16
3.1 Connection for drum pump operation ............................................................................. 16
3.2 Connection to the piping system – Flange connection..................................................... 17
3.3 Valve connection............................................................................................................... 18
4. Maintenance and servicing....................................................................................................... 18
  4.1 Cleaningthelterandcheckvalve................................................................................... 18
  4.2 Dismantlingthebasicowmeter..................................................................................... 19

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C. BasicowmeterHDO..................................................................................................................... 20
1. Proper use ................................................................................................................................ 20
1.1 Application in explosion hazard areas .............................................................................. 21
1.2 Technical data ................................................................................................................... 22
1.3 Liability.............................................................................................................................. 28
2. Installation ................................................................................................................................ 29
2.1 Electrical connection HDO080........................................................................................... 30
2.2 Drum pump connection.................................................................................................... 30
3. Operation ................................................................................................................................ 31
4. Disassembly and reassembly .................................................................................................... 31
  4.1 BasicowmeterHDO250P............................................................................................... 31
4.1.1 Disassembly ............................................................................................................ 31
4.1.2 Reassembly ............................................................................................................. 32
  4.2 BasicowmeterHDO120,HDO200,HDO250,HDO400andHDO500.............................. 33
4.2.1 Disassembly of wet ends ........................................................................................ 33
4.2.2 Assembly of wet ends.............................................................................................. 33
4.2.3 Reed switch board................................................................................................... 34
  4.3 BasicowmeterHDO080 ................................................................................................. 35
4.3.1 Disassembly ............................................................................................................ 35
4.3.2 Reassembly ............................................................................................................. 35
D. Repairs .......................................................................................................................................... 36
E. Traceability...................................................................................................................................... 36
F. Waste disposal................................................................................................................................ 36
G. Annex .......................................................................................................................................... 37
1. Terminal assignment of cables and connectors........................................................................ 37
2. Trouble shooting ....................................................................................................................... 38
2.1 Fault report ....................................................................................................................... 38
2.2 Other faults....................................................................................................................... 40
SparepartslistbasicowmeterTS................................................................................................. 42-47
SparepartslistbasicowmeterHDO080............................................................................................ 48
SparepartslistbasicowmeterHDO250P..................................................................................... 49-50
SparepartslistbasicowmeterHDO120,200,250,400,500........................................................ 51-54
Declaration of Conformity .................................................................................................................... 55

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A. General
1. Concerning this manual
This manual
• is part of this product
• is valid for all mentioned series
• describes the safe and proper use in all operating stages
1.1 Terms
User: Singlepersonororganisationwhoisusingtheproductse.g.customer,user,assistant
1.2 Target groups
Target group Task
User ►Retain these operating instructions at the product’s place of use for
future reference.
►Demandthestatoreadandobservetheseinstructionsandthe
additionalvaliddocuments,inparticularthesafetyinformationand
warnings.
►Observe additional regulations and instructions concerning the plant.
Qualiedpersonnel,installer ►Read,observeandfollowtheseinstructionsandtheadditionalvalid
documents,inparticularthesafetyinformationandwarnings.
Tab.1:Targetgroupsandtheirtasks
1.3 Associated applicable documents
Document Purpose
Operating instructions opera-
ting unit
Safeandproperuseoftheoperatingunit.Setupandcheckthefunctions
of the communication module.
Operating instructions relay
module
Safe and proper use of the relay module.
Operating instructions
communication module
Safe and proper use of the communication module.
Supplementary operating
instructions
for additional delivered components
Tab. 2: Associated applicable documents and purpose

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1.4 Warnings and symbols
Warning Level of risk Consequences in case of
non-compliance
DANGER direct danger death or serious injury
WARNING possible direct danger death or serious injury
CAUTION possible dangerous situation light injury
NOTICE possible dangerous situation damage of property
Tab. 3: Warnings and consequences in case of non-compliance
Symbol Meaning
Safety information
► Complywithallmeasuresthataremarkedwithasafetysigntopreventinjuriesor
death.
iInformation / Recommendation
►What to do
→cross reference
3Requirement
Tab. 4: Symbols and meaning
1.5 Latest state
Pleasendthelateststateofthisoperatinginstructionunderwww.lutz-pumpen.de.
1.6 Copyright
The contents of these operating instructions and the images contained in them are subject to the copyright
protection of Lutz Pumpen GmbH.

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2. Safety
The manufacturer will not be held responsible for any damages resulting from non-compliance of the
overalldocumentation,inparticularfordamagesincaseofnon-complianceoftheoperatinginstructions.
2.1 General safety information
Observe following regulations before accomplishing all activities.
Product safety
Thebasicowmeterisconstructedinconformitywiththestateoftheartandapprovedsafety-related
standards. Danger however can occur during use for life and health of the user or third parties or dama-
geofthebasicowmeterandothermaterialassets.Therefore:
• Operatethebasicowmeteronlyinatechnicallysoundstate,foritsproperuse,andconsciousof
safetyandhazardstakingintoaccounttheseinstructions.
• Ensurethattheseinstructionsandallassociatedapplicabledocumentsarecomplete,legible,and
stored in a place that personnel can access at all times.
• Refrainfromanymannerofworkingthatendangerspersonneloruninvolvedthirdparties.
• Inthecaseofasafety-relevantmalfunction,stoptheowmetersystemimmediatelyandenlista
responsible person to rectify the malfunction.
• Inadditiontotheoveralldocumentation,observethestatutoryorothersafetyandaccidentpreventi-
onregulations,aswellasthevalidstandardsandguidelinesoftherespectiveoperatingcountry.
Modications
Unlessthemanufacturerhasprovideditsconsentinwriting,themanufacturerisnotliableforinterven-
tionsperformedbytheuser(modications)ontheproduct,suchasconversion,alteration,newdesign,
etc.Modicationsnotagreedwiththemanufacturermayhavethefollowingeects,amongothers:
• Functional impairments on the appliance or plant
• Damage to the appliance and other property damage
• Environmental damage
• Personal injuries right through to death
Duties of the operator
Safety-conscious working
• Operatethebasicowmeteronlyinatechnicallysoundstate,foritsproperuse,andconsciousofsafety
andhazardstakingintoaccounttheseinstructions.
• Ensure observance and monitoring of:
- Proper use
- Statutory or other safety and accident prevention regulations
- Safety provisions in handling hazardous substances
- Valid standards and guidelines in the respective country of operation
• Provide protective equipment.

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Personnel qualication
• Ensurethatpersonneltaskedwithworkonthebasicowmeterhavereadandunderstoodthese
instructionsandallassociatedapplicabledocuments,particularlysafety,maintenanceandservicing
information,beforetheystartwork.
• Clarifyresponsibilities,competenciesandmonitoringofthepersonnel.
• Ensurethatallworkiscarriedoutbytechnicalqualiedpersonnelonly:
- Assembly,servicing,maintenancework
- Workontheelectrics
Statutory warranty
• Duringtheguaranteeperiod,obtainthemanufacturer'spermissionformodications,maintenance
workoralteration.
• Use only original parts.
Duties of the personnel
• Observethenoticesonthebasicowmeterandmaintaintheminalegiblestate.
• Use protective equipment where necessary.
• Ensurethatthebasicowmeterisdisconnectedbeforeyoucarryoutassemblyandmaintenancework.
3. Transport and storage
3.1 Transport
Unpackingandcheckofconditionondelivery
►Unpackthebasicowmeteronreceiptandcheckfortransportdamages.
►Report transport damage to the manufacturer immediately.
►Checkthattheconsignmentiscompleteasordered.
3.2 Storage
NOTICE
Damage of property as a result of incorrect storage!
►Storebasicowmetercorrectly.
►StorebasicowmeterprotectedagainstweathereectsandUV-rays.
4. Year of construction
Theyearofconstructionoftheappliancecanbeseenontheeldfortheserialnumber.Hereareattached
totheserialnumberthebothlastdigitsoftheyearofconstruction,e.g.(-10fortheyear2010).

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5. Modular Flow Meter System TS
Theowmeteroperatesaccordingtothepositivedisplacementprinciple.Inahousingttedwithinletand
outletisameasuringchamberthroughwhichtheuidisforcedtoowonitswaythroughthehousing.
Inthemeasuringchamber,anutatingdiscblockstheuid`sclearpath.Asitowsthroughthemeasuring
chamber,theuidpushesthenutatingdisctooneside.Itistheactionofdisplacingtheimpedimentwhich
produces the wobble movement of the disc and circular motion of the nutating disc shaft. By means of a
driver,amagnetwithseveralpolesissetintorotation,whichisabletoactivateamagneticallyswitched
contact through the lid of the housing. Every revolution of the nutating disc is assigned to a constant volume
andaxednumberofpulses,sopermittingtheelectonicevaluatingsystemtodeterminethevolumetric
owthroughthenumberofreceivedpulses.
For practically-orientated application, the ow meter system is made up of various modules:
ÀOperating unit
Electronicevaluatingunitwithtouchscreenforoperationoftheow
meter.
ÁProtection cap
Protectsthemodulesbasicowmeter,relaymoduleormainsunit
when the operating unit is decentrally installed.
Pulse converter
Ampliesthesignalsfromthebasicowmeter.Isrequiredifthe
signals need to be transmitted further than 5 m.
ÂRelay module
Switches the external electrical appliances such as pump motor and
solenoid valve and is controlled by the evaluating electronics of the
operating unit.
Mains unit
Supplies power to the operating unit when battery-powered operation
is not desired and when no relay module is needed.
Communication module
Istheinterfacetoothermanagement,controlorprocesscontrol
systemswithdierentinputsandoutputs.
à Basic ow meter
Housing and measuring chamber with all components for volumetric
measurement which come into contact with the transported medium.
The ow meter can be used in two dierent operating modes:
Manual mode: Forllingusingamanuallyoperatednozzle.The
part volume meter is reset to zero and the requi-
red volume is metered while the nozzle is being
operated.
Volume preset: Thepreselectedvolumeislledbypressingakey.
Volume preset is possible only when relay module
is connected.
Fig.1-Operatingunitandowmeter
Fig. 2 - Relay module and protection cap

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Fig.3-Operatingunitandowmeter
Fig. 4 - Relay module and protection
cap
6. Modular Flow Meter System HDO
TheHDOseriesowmeterhasincorporatedtheovalgearprincipleintoitsdesign.Thishasprovento
beareliableandhighlyaccuratemethodofmeasuringow.Exceptionalrepeatabilityandhighaccuracy
overawiderangeofuidviscositiesandowratesarefeaturesoftheHDOseriesowmeterdesign.The
lowpressuredropandhighpressureratingmeanstheHDOseriesowmeterissuitableforbothgravity
and pump (in line) applications.
For practically-orientated application, the ow meter system is made up of various modules:
ÀOperating unit
Electronicevaluatingunitwithtouchscreenforoperationoftheow
meter.
ÁProtection cap
Protectsthemodulesbasicowmeter,relaymoduleormainsunit
when the operating unit is decentrally installed.
Pulse converter
Ampliesthesignalsfromthebasicowmeter.Isrequiredifthe
signals need to be transmitted further than 5 m.
ÂRelay module
Switches the external electrical appliances such as pump motor and
solenoid valve and is controlled by the evaluating electronics of the
operating unit.
Mains unit
Supplies power to the operating unit when battery-powered operation
is not desired and when no relay module is needed.
Communication module
Istheinterfacetoothermanagement,controlorprocesscontrol
systemswithdierentinputsandoutputs.
à Basic ow meter
Housing and measuring chamber with all components for volumetric
measurement which come into contact with the transported medium.
The ow meter can be used in two dierent operating modes:
Manual mode: Forllingusingamanuallyoperatednozzle.The
part volume meter is reset to zero and the requi-
red volume is metered while the nozzle is being
operated.
Volume preset: Thepreselectedvolumeislledbypressingakey.
Volume preset is possible only when relay module
is connected.

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B. Basic ow meter TS
1. Proper use
Thebasicowmeterisusedformeasuringliquidvolumeswheregaugingmeteringisnotrequired.The
basicowmeterisprecalibratedfortheuseofwater.Themeasurementofotherpuremediaisalsopossible.
Todothis,adierentuser-speciccalibrationfactorisenteredattheoperatingunit.
NOTICE
These causes may impair the measurement result, damage the ow meter, or reduce its service life:
►stronglypulsatingow
►airbubblesintheow
►excessivelyloworhighowrate
►excessiveviscosityofthemeasureduid
►blowing through of compressed air.
1.1 Application in explosion hazard areas
!WARNING
Application in explosion hazard areas or the metering of ammable liquids can cause explosion
resulting in severe injury or death.
►Basicowmetersarenon-electricaloperatingappliancesnotrequiringocialapprovalwhenusedin
zone 1.
►ThebasicowmetersVA10,HC10,LM10andUN10correspondtothedirective2014/34/EU(groupII,
category2,forgasesandtemperatureclassT4).
►Thebasicowmetermayonlybeusedatatmosphericalconditionsof0.8barupto1.1baranda
temperaturerangeof-20°Cupto+40°C.Anapplicationisnotallowedinatmosphereswithammable
dust.
►ThetemperatureoftheliquidbeingpumpedislimitedfortypesLM10andUN10tomax.60°Candfor
types VA10 and HC10 to max. 80°C.
►Anequipotentialbondingmustbeestablishedbetweenbasicowmeter,pumptubeandhose-orpipe
line.
►Use only conductive pressure hoses or conductive pipes.
►Forapplicationswithadrumpumpthebasicowmetermustbemountedoutsideofthecontainer.
►Theadmissibleoperatingpressure(typesLM10andUN10-4bar,VA10andHC10-10bar)mustnot
be exceeded.
►In case another electronical device for analyzing is used than that provided by the manufacturer the
explosion protection regulations must be observed.
►Inordertoavoidresparkling,assemblyworksmustbecarriedoutbyqualiedpersonnelonly.
►Topreventcorrosionitmustbeensuredthatthebasicowmeterisresistanttotheliquidsbeing
transferred.
►Topreventanexplosivegasatmosphereinthebasicowmeteruseasolidhosesystem.

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1.2 Technical data
Type ST10 SL10 LM10 UN10 VA10 HC10
Flow rate min. 10 l/min
max. 100 l/min*
min. 10 l/min
max. 100 l/min*
min. 10 l/min
max. 100 l/min*
min. 10 l/min
max. 100 l/min*
min. 10 l/min
max. 100 l/min
min. 10 l/min
max. 100 l/min
Temperature 60 °C 60 °C 60 °C 60 °C 80°C (60°C**) 80°C (60°C**)
Viscosity 2.000 mPas 2.000 mPas 2.000 mPas 2.000 mPas 5.000 mPas*** 5.000
mPas***
Operating
pressure
4 bar 4 bar 4 bar 4 bar 10 bar 10 bar
Accuracy ± 1% standard
≤1% with
adjustment
to application
conditions
± 1% standard
≤1% with
adjustment
to application
conditions
± 1% standard
≤1% with
adjustment
to application
conditions
± 1% standard
≤1% with
adjustment
to application
conditions
± 1% ± 1%
Inlet port G 2 male
threadtot
connector with
union nut
G 2 male
threadtot
connector with
union nut
G 2 male
threadtot
connector with
union nut
G 2 male
threadtot
connector with
union nut
G 1 1/4 G 1 1/4
Outlet port G 1 1/4 male
thread
G 1 1/4 male
thread
G 1 1/4 male
thread
G 1 1/4 male
thread
G 1 1/4 male
thread
G 1 1/4 male
thread
Weight 780 g 780 g 900 g 930 g 3300 g 3600 g
Materials:
Housing PPO PPO PPS PPS Stainless steel
(1.4581/1.4571)
Hastelloy C
(2.4610)
Measuring
chamber
PPO/PPS PPO/PPS LCP LCP Stainless steel
(1.4581/1.4571)
ETFE/PTFE****
Hastelloy C
(2.4610),
ETFE/PTFE
Seals FPM FPM FEP FEP FEP FEP
Magnet BaFe,PA,
Stainless steel
(1.4401)
PPS
encapsulated
BaFe,brass,
Stainless steel
PPS
encapsulated
PTFE
encapsulated
PTFE
encapsulated
Suitable for
Ex-applica-
tions
no no yes
conductive
yes
conductive
yes
conductive*****
yes
conductive
Order No. 0230-500 0230-510 0230-520 0230-530 0230-540 0230-550
* short-time 120 l/min.
** in explosion proof version
*** depending on the application
**** PVDFforVA10PURE,OrderNo.0230-330
  PVDF/PEforVA10Ex-PURE,OrderNo.0230-331
*****not suitable for VA10 PURE
Description of material
PPO = Polyphenylene Oxide
FPM = Fluoro Elastomer
PA = Polyamide
PPS =PolyphenyleneSulde
BaFe = Barium-Ferrite
FEP =TetrauoroEthylene/HexauoroPropylene
LCP = Liquid Cristalline Polymere

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1.3 Maximum pressure depending on temperature of the medium
Diagram 1 - Maximum pressure depending on temperature of the medium
1.4 Complete hose system
Beforeinitialstartingoftheowmeter,theentirepipingsystemmustbeslowlyventedfromthepump
throughtotheshutoelement(nozzle,solenoidvalveorsimilar).Duringoperation,caremustbetaken
toensurethatthecompletesystemislledwithliquid.
1.5 Pressure surges (water hammer)
Considerablepressureuctuationswithso-calledwaterhammercanbuildupinthesystemasaresultof
delays(disconnection/shuto)oraccelerationoftheowingliquidcolumnwhenusinglongdeliverylines
or when using solenoid valves with short opening and closing times.
!WARNING
The brief pressure peaks or surges due to water hammer can cause serious damage and destroy
the ow meter, pump or other components in the system! Danger by uncontrolled splashing liquid.
Dependingonthemediumconcerned,thiscanleadtocausticburns,explosionhazards,toxicvapours,
electricshocks,dangerofslippingandotherdangers!
Example:
A valve closing time of 20 ms can cause a pressure surge of up to 10 bar in a 10 metres long 1" pipe at a
owrateof50l/min.
Pressure surges can be prevented as follows:
• Usealargernominaldiameter(DN)toreducetheowspeedinthedeliveryline.
• Filling with step-by-step interruption (→OperatinginstructionsOperatingunit-Opoint).
• Usereliefvalvesandpressurelimitingvalvestoeliminateimpermissiblepressurepeaks.
TypeST10,SL10,LM10,UN10
TypeVA10,HC10

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1.6 Pressure drop
Diagram2indicatesthepressuredroprelativetoow.Thesolidlineisapplicableforaqueousliquids
(ρ≈1kg/dm³,η≈1 mPas).
Incaseofmediawithdierentdensity(ρ≠1kg/dm³)thepressuredropvalueshavetobetakenfromthe
solid line in diagram 2 and multiplied by the density value of the liquid.
Media with a high dynamic viscosity (η>>1mPas)likehigh-densitymedia,causeahigherpressuredrop.
The limiting curve for permissible viscosity at ρ =1kg/dm³isdepictedindiagram2asadottedline.Ifthe
density ρ isgreaterthan1kg/dm³,thepressuredropsinthediagrammustbemultipliedbytheactual
density.
Diagram2-Pressuredropdependingonowvolume
TypeVA10,
HC10
TypeST10,
SL10,LM10,
UN10
specicdensityρ =1kg/dm³
Δp / (m wc)

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1.7 Accuracy of measurement and ow rate
Inthefactorythemeteriscalibratedforaowrateof40l/min.Otherowratesaectthemeasurement
accuracyoftheowmeter(→diagram 3a and 3b).
Themeasurementaccuracywithregardtotheowcanbeimprovedintwoways:
1. Theowmeterispreciselycalibratedtotheowratewithregardtotheoperation(→operating inst-
ructions-operatingunit).Thisisthemostaccurate.However,itonlyworksataconstantowrate.
2. Themeasurementaccuracyovertheowraterangereactsdierentlydependingonthebasicow
meter type (→diagrams3aand3b).Ifthebasicowmetertypeisselectedontheoperatingunit(→
operatinginstructions-operatingunit),thentheaccuracyisautomaticallyimprovedforcertainow
rate ranges.
Q : Flow rate
Krel:Relative correction factor
out of diagram 3a or 3b
K1: Recent correction factor out
of main memory
K2: Newcorrectionfactor
Example for type ST10, SL10,
LM10, UN10:
Q= 20 l/min Krel=0,01
K1=1,028
K2= K1+ Krel
K2=1,028+0,01
K2=1,038
Example for type VA10:
Q= 20 l/min Krel=0,03
K1=3,37
K2= K1+ Krel
K2=3,37+0,03
K2=3,4
Diagram3b-Correctionfactordependingonowrate
Diagram3a-Correctionfactordependingonowrate
Relative correction factor
Relative fault in percent
Type VA10,
HC10
Relative correction factor
Relative fault in percent
Type ST10, SL10,
LM10, UN10

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1.8 Liability
Iftheproductandsuppliedaccessoriesareusedforotherpurposesthantheintendedpurpose,itisthe
responsibilityoftheusertocheckthesuitabilityandadmissibility.Productusenotconrmedinwriting
by the manufacturer absolves the manufacturer of any liability.
Themanufacturerisnotliableforconsequencesofincorrecttreatment,use,maintenance,servicingand
operationoftheappliance,aswellasnormalwearandtear.Thesameappliesiffaultsarisefrominter-
ventionorcongurationsonthepartoftheusernotconrmedbythemanufacturer.
2. Prevention of obvious misapplication
!WARNING
The metering of non-compatible liquids damages the ow meter.
Splashing liquid or ying parts can cause injury.
►Checkbymeansofthematerialsindicatedinthetechnicaldataandaresistancetable(e.g.Lutzresis-
tancetable)whetherthebasicowmeterissuitableforthedeliveredliquid.
!WARNING
Exceeding the temperature range and the operating pressure causes damage to the basic ow
meter.
Splashing liquid or ying parts can cause injury.
►The ranges indicated in the technical data for temperature of liquid and operating pressure have to be
observed.

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3. Installation
3.1 Connection for drum pump operation
Fig. 5 -
ConnectionfordrumpumpoperationtypeST10,SL10,LM10andUN10
Fig. 6 - Connection for drum pump operation type VA10
Mounting steps ow meter
type ST10, SL10, LM10 and
UN10:
1. Mountthecheckvalve
(option)andlterscreen
into the inlet (arrow). The
non-return valve may be
only installed together with
a strainer.
2. Insert the o-rings into the
collar bush. Wet the sealing
surfaces and o-rings with a
suitable lubricant.
3. Place the wing nut onto the
collar bush.
4. Screw the collar bush onto
the outlet of the pump tube.
5. Screw the wing nut with the
owmeter.
6. Screwthehosettingonto
theowmeteroutlet
G 1 1/4.
Mounting steps ow meter
type VA10:
1. Insert the seal into the wing
nut.
2. Screw the drum pump
connection onto the outlet of
the pump tube.
3. Insert the seal into the wing
nut and screw it with the
owmeter.
4. Screwthehosettingonto
theowmeteroutlet
G 1 1/4.

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3.2 Connection to the piping system – Flange connection
NOTICE
For connecting the ow meter to the piping system, the following must be observed:
►Pipes,ttings,etc.mustbesuitablysupportedsothatadditionalweightandvibrationsarenottrans-
mittedtotheowmeter!
►Suction and discharge lines must always be connected without tension. The piping must be rerouted if
anosetcannotbecompensatedbyappropriatemeans!
Mounting steps ow meter
type ST10, SL10, LM10 and
UN10:
1. Mountthecheckvalve(opti-
on)andlterscreenintothe
inlet (arrow).
The non-return valve may be
only installed together with
a strainer.
2. Push the o-ring onto the
collar bush. Wet the sealing
surface and o-ring with a
suitable lubricant.
3. Place the wing nut onto the
collar bush and screw it with
theowmeter.
4. Insert the o-rings into the
screwsockets.
5. Screwthescrewsocketsonto
theowmeterandcollar
bush.
6. Insert the o-rings into the
screwsockets.
7. Mounttheange.
8. Screwontheangedbush.
Mounting steps ow meter
type VA10:
1. Placetheangeplateonto
the collar bush.
2. Insert the seal into the collar
bush.
3. Screw on the collar bush to
theowmeter.
Fig.7-FlangeconnectiontypeST10,SL10,LM10andUN10
Fig. 8 - Flange connection type VA10

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3.3 Valve connection
Mounting steps:
1. Screw the double nipple
G 3/4 – G 1 1/4 into the
inlet and outlet side of the
solenoid valve.
2. Mount the hose connection
G 1 1/4 on both sides of the
hose.
3. Connect the hose with the
owmeteroutletandthe
solenoid valve inlet.
 Noteowdirectionofthe
solenoid valve!
4. Screw the discharge bend
onto the outlet side of the
solenoid valve.
Fig. 9 - Valve connection
4. Maintenance and servicing
4.1 Cleaning the lter and check valve
Itisadvisabletoushandcleanthebasicowmeterafterhandlingaggressive,tacky,crystallizingorvery
contaminating liquids.
ProceduretypeST10,SL10,LM10andUN10:
1. Emptytheowmeter
2. Release the wing nut
3. Removethelterandcleanwithapaintbrushorblowthroughwithcompressedair
4. Pressinthecheckvalvemanuallyandblowthroughwithcompressedair

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4.2 Dismantling the basic ow meter
Thebasicowmetercanbedismantledforcleaningthemeasuring
chamber or for troubleshooting.
!WARNING
The basic ow meter can still contain liquid during dismantling!
Incaseofaggressiveliquids,thiscanleadtoburns,poisoning,irri-
tationoftheskinetc.
Wear appropriate protective clothing when handling aggressive
liquids.Basicowmetermustbeemptiedbeforedismantling.Despite
ofpreviousemptying,residualliquidcanstillbeintheowmeter
housing during dismantling process. Therefore always remove the
cover Àupwards.
iWhendismantlingthebasicowmetersoftypeLM10,UN10,
VA10 and HC10 it is recommended to replace the o-ring Á. Wet
the sealing surface and o-ring with a suitable lubricant.
Basic ow meter ST10, SL10, LM10 and UN10 (→Fig. 10a):
1. Release the screws Åonthebottomsideoftheowmeter.
2. Remove the cover Àupwards.
3. Lift the measuring chamber Ãout of the basic body Ä.
4. Remove the o-ring Âof the measuring chamber.
5. Carefully open the measuring chamber.
Theassemblyiseectedinreverseorder.
When mounting the cover Àtakecareoftherightpositiontothe
basic body Ä.
Basic ow meter VA10 and HC10 (→Fig. 10b):
1. Release the screws Åonthebottomsideoftheowmeter.
2. Remove the cover Àupwards.
3. Remove the clamp Ã.
4. Lift the measuring chamber Âout of the basic body.
5. Carefully open the measuring chamber.
Theassemblyiseectedinreverseorder.
When mounting the cover Àtakecareoftherightpositiontothe
basic body Ä.
Fig. 10b -
Dismantlingthebasicowmeter
Fig. 10a -
Dismantlingthebasicowmeter

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C. Basic ow meter HDO
1. Proper use
TheHDOseriesowmetersareusedformeasuringliquidvolumes.TheyareavailableinmaterialsPPS,
stainless steel or aluminium. Rotors are made of PPS or stainless steel.
!WARNING
Splashing liquid or ying parts can cause injury.
The metering of non-compatible liquids damages the ow meter.
►Checkbymeansofthematerialsindicatedinthetechnicaldataandaresistancetable(e.g.Lutzresistance
table)whetherthebasicowmeterissuitableforthedeliveredliquid.
Exceeding the temperature range and the operating pressure causes damage to the basic ow
meter.
►The ranges indicated in the technical data for temperature of liquid and operating pressure have to
be observed.
►Use only extensions and nozzles that are designed for use with this equipment.
►Seal all connections before you commission the machine.
!DANGER
Fire and explosion hazard due to delivered liquid!
Combustion hazard. Blast wave: Flying parts can kill.
→chapter 1.1 - Application in explosion hazard areas
NOTICE
Dirt or foreign matter exceeding a particle size of 0.25 mm will damage the ow meter.
Topreventdamagefromdirtorforeignmatter,werecommendaYorbaskettype60meshstrainerbe
installed as close as possible to the inlet side of the meter.
Note:Checkandcleanthestrainerregularly.Failuretokeepthestrainercleanwilldramaticallyeect
owmeterperformance.
NOTICE
Air purges can damage the ow meter.
►Whenstartingupslowlyllthesystemwithuid.
iThe reed switch can be used as a pulse transmitter for counters or PLC counter inputs provided by
customer. Bounce can cause inaccurate results. It is advised that a debounce circuit be used with high
speed counters.