Liquid Measurement Installations /M d l T iModular Testing

Part 1

Wim Volmer NMi Certin BVWim Volmer, NMi Certin BV

ContentsContentsPart 1:• MID vs. OIML & API• Scope MI-005p

• 30 minutes (hopefully less)• 30 minutes (hopefully less)

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TargetTarget• Introduction Liquid metering in EU

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MID vs API & OIML#1MID vs. API & OIML#1

The good news:The good news:• They are not in conflict

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MID vs API & OIML#2MID vs. API & OIML#2

The bad news:The bad news:• There are differences

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APIAPI• No status under MID• Legal Metrology:

– Span of API declining– Span of OIML growing

• Suggestion: start looking at OIMLSuggest o sta t oo g at O

• Please know OIML cooperates with WTO ISO d hWTO, ISO and others

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OIMLOIML• R117-1 Normative Document under

MIDMID

Advantages:• Clarifies "suitable for use"Clarifies suitable for use• Provides a basis for solving a

fundamental MID challengefundamental MID challenge

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Measuring Instruments DirectiveMeasuring Instruments Directive

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Scope MI-005Scope MI 005• Measuring SYSTEMS for Liquids

h h Wother than Water• Legal term: "Measuring

Instrument"• Continuous and dynamic y

measurement (not level gauging)• Including cryogenics (e g LNG)Including cryogenics (e.g. LNG)• Not restricted to Fuels

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Measuring Instrument ???Measuring Instrument ???

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Typical SystemTypical System

Flow computer

Printer DCS

GSupply Receiver

Gas Elimination / Prevention Meter

Transferpoint

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Problem sketchProblem sketch• Users wants:

– Meter Make A– Flowcomputer Make B– His existing piping

• Law: 1 single Manufacturerg• Will A apply for Approval of A and

B and the rest?B and the rest?• Will B handover documentation?• What to do about pre MID parts• What to do about pre-MID parts

combined with MID parts? (later today)today)

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Please knowPlease know …• A fully modular Approach would

h b bl i !!!have been problematic too!!!

• How to combineModules?

• Local authorities arelikely to implementlikely to implementnational legislation-> (barrier to trade)> (barrier to trade)

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SummarySummary• No problem with the standards

• What they call an "instrument"y• We consider as a collection of

devicesdevices

Th l l ibilit i il t l• The legal responsibility is unilateral• The production responsibility is

multilateral• Or, MID is not modular,

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Questions?Questions?

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Liquid Measurement Installations /M d l T iModular Testing

Part 2

Wim Volmer NMi Certin BVWim Volmer, NMi Certin BV

ContentsContentsPart 2:• EC Type Examination Certificate• Evaluation / Part Certificate

– Barrier to Trade?

• 30 minutes (or slightly over)

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GoalGoal• The workaround

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WelmecWelmec

• WG10 recognised the problemWG10 recognised the problem• WG10 Participants:

Authorities / Regulators– Authorities / Regulators– Manufacturers

N tifi d B di– Notified Bodies

• WG8 made the proposal• We had to work fast with what we had

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Voluntary Modular ApproachVoluntary Modular ApproachBasic idea:• Producers obtain "Part Approvals"• Single entity has combinationSingle entity has combination

Approved

Challenge:• Who accepts responsibility?

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Easy for large manufacturerEasy for large manufacturer

• Because he has all components

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Necessity for Producer & UserNecessity for Producer & User

• Because they need to combine componentscomponents

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Practical issuesPractical issues• (Part) Approvals contain

confidential information• Party A does not want to "sell" party y p y

B's instruments• Party B does not want his CertificationParty B does not want his Certification

investment to be abused• Party C only makes flowcomputers• Party C only makes flowcomputers• …

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Available options (for now)Available options (for now)• EC Type Examination Certificate for

h l Ithe complete Instrument

EC T E i ti C tifi t• EC Type Examination Certificate based on:– Evaluation Certificates– Part Certificates

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The workaroundThe workaround

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Essence of Modular ApproachEssence of Modular Approach• Voluntary

– Both in application and acceptance

• Restricted (for now) to OIML R117-1 Constituent Elements

• Each "Part Producer" obtains Certification against MID

• Allows others to use that implicitly• Allows others to use that implicitly or explicitly

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Part CertificatePart Certificate• States compliance with relevant

irequirements• Describes the Part• Documents the Part• Truely detailed information on fileTruely detailed information on file

U t i t d• Unrestricted use

• So anybody can use that Certificate / that flowcomputerp

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Evaluation CertificateEvaluation Certificate• States compliance with relevant

irequirements• Describes the Part• Documents the Part• Truely detailed information on fileTruely detailed information on file

R t i t d• Restricted use• So nobody can use that Certificate /

that flowcomputer without permission

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Trusted Third PartyTrusted Third PartyFor Evaluation Certificates:• Authorities may ask for detailed

information• Type Approval file only to

Authorities in court cases• EC Approval, Description and

Documentation only to authoritiesDocumentation only to authorities

O t A l t t• Owner system Approval accepts not seeing details Evaluation Certificate

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Pre-summaryPre summary• An owner / end-user can become

li / f fapplicant / manufacturer of complete Measuring Instrument

• Possible to keep sensitive pinformation off the street

• Manufacturers / producers can block competitor's Certificationcompetitor s Certification

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Is it a Barrier to Trade?Is it a Barrier to Trade?Legally speaking NO, because:• Everyone can apply for

another Approval in his name• A (Part) Approval is not Public

Propertyp y

• Or you are not allowed to drive• Or, you are not allowed to drive under my driving license

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SummarySummary• Practice and Law are not aligned• A workaround is available

++++ / ----++++ /

• The workaround is voluntary– Cooperation not guaranteed– Acceptance not guaranteed

• The workaround is not perfectp

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CHECK COMPATIBILITY!CHECK COMPATIBILITY!

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Questions?Questions?

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