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Usa wv mid national practice 16 july 2010 session 2 rev 0
1. National Regulations & Inspection /
MID in Practice
i P i
Another Brick in The Wall, Part 1
Wim Volmer, NMi Certin BV
Volmer
2. Contents
Part 1:
• Inspection
• National (additional) requirements
( ) q
– Sub-assemblies (general)
– Mix-and-match
Mix and match
• MID Amendment / Revision
– General changes
– CNG Dispensers
– Level Gauges
• 30 minutes 2
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3. Presentation goal
• Discover the reach of MID and its
limitations
li i i
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4. Traditional Legal regime
Type
Approval
Test
Complexity Pre-Market
Initial
Verification
Maintenance, repair, re-re Market
M k t/
calibration / verification in-use
No.
No of tests
Market Surveillance /
Enforcement
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5. Please,
Please keep in mind
MID Scope:
• Placing on the Market
• Putting into use
g
Many traditional authorities are now:
• Loosing work
• Operating in the in-use segment
• Often with possibilities to influence
p
national legislation
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6. Some Member States …
• "… within 3 months a subsequent
Verification
V ifi i must be performed b
b f d by
…"
• Although not in conflict with MID,
• Clearly a Barrier to Trade
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7. Brussels intends to:
• Harmonise Market Surveillance
• Act against misbehaviour
• However, these authorities are
,
conventional and clever
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9. MID Transition
• 10 years from October 2006
• Small modification allowed?
• Combination pre-MID parts and
MID parts?
• N t thi t i ll concerns i
Note: this typically in-use
instruments
• So, not MID, but national
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10. Typical solutions
• Don't look
• Change national Law
• (Stick to the letter)
( )
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11. Gas Meters
• MID: domestic and light industrial
• National: industrial meters
Differences within EU:
• Distinction light industrial /
industrial
• I d t i l options:
Industrial, ti
– No requirements
– MID
– Purely national legislation
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12. Please know:
• Brussels does want to harmonise
light i d
li h industrial / industrial
i l i d i l
• Easier said than done (EU grids
differ)
)
• No short-term solution expected
short term
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13. Sub assemblies
Sub-assemblies
• Separate "Approval"
• Separate "Placing on the Market"
and "Putting into use"
• National legislation on how to
combine
• Therefore, sub-assemblies need not
be
b a solution ( th problems i
l ti (other bl in
return)
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14. MID Amendment
• 2011
• Proposal deadline around now
Expected:
• No fundamental changes in
Transition or sub-assemblies
• Edit i l / corrections
Editorials ti
• Annex CNG Dispensers
• Annex Level Gauging (mobile and
stationary tanks)
y )
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15. Summary
• Differences in Market Surveillance
Approach -> potential hindrance
A h i l hi d
• Mix-and-match:
– On paper, big problem
– Still challenging
• CNG and Level under MID ->
improvement
p
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21. EC Type Examination Certificate
• MID (roughly) prescribes minimum
contents
• Large degree of freedom
g g
Two main streams:
• All in one
• Based on Part / Evaluation Certificates
– NMi version
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22. All in one
• Describes the complete Measuring
Instrument
• All details included
• Underlying reason: keep authorities
occupied
• D
Documents: high-maintenance
t hi h i t
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23. All in one, sketch
one
EC TAC EC TAC
#1 #2
Meter A Meter D
Flowcomputer B Flowcomputer B
Gas Elimination C Gas Elimination E
• Now, software change
flowcomputer B …
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24. Based on Part / Evaluation …
• Describes the complete Measuring
Instrument
• Refers to Part / Evaluation Certificates
for details
• Makes the EC TAC short
• Need to check more documents at
Verification / Inspection
• Document structure aligned with
practical situation
ti l it ti
• Document: low-maintenance
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25. Based on …, sketch
EC TAC EC TAC
#1 #2
Part
Part Part Gas Flow- Part Part Gas
Meter A C com- Meter D E
puter B
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26. So far:
• Contents of EC TAC (direct, or via
reference) not diff
f ) different
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27. NMi Version
For EC TAC's, Evaluation and Part
Certificates:
• Essential …
• Conditional …
• Non essential … (explanatory)
Non-essential
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29. Conditional … examples
EC TAC:
• Printer with: CE Marking, ON-/OFF-
line control, Paper-Out control
• Bypass, if fitted with Spectacle Blind
• …
Evaluation C tifi t Flowcomputer:
E l ti Certificate Fl t
• Non-Metrological Software
• P-transmitter with Part Certificate
• …
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30. Non essential
Non-essential … examples
EC TAC:
• Optionally, vapour return line
• …
Notes:
• Intended to prevent confusion
p
• Often not necessary
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31. NMi Version:
• Contents no different
• Parts / Characteristics classified by
metrological importance
• Same metrological guarantee
• Maximum degree of freedom
(within legal limits)
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32. Comparison
• First time around, All in one most
efficient
ffi i
• New combination known parts,
Based on … most efficient
• (Small) modification, NMi version
( ) ,
most efficient
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34. The Real World
• What Verification / Inspection
officers find
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35. EC TAC is:
• …
• A Manual for Verification &
Inspection
• …
• Note: Verification / Inspection
officer expected to have general
knowledge of requirements
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36. What about piping valves …?
piping, ?
• General "description" in EC TAC
• Specific description where needed
(straight lengths …)
• Branches & Bypasses
• Position of valves
• Empty / full "hose"
• …
• Materials, lengths???
• Application (empty / full hose)
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37. Software
Officers need to check:
• Software version
g
• Software configuration
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38. Verification challenges
• Possibility to test on-site
• Recognise the system
• Check conformity y
• Check operating range
• Check application
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39. Challenges EC TAC
• Not too detailed (unnecessary
restriction)
i i )
• Enough for Metrological guarantee
• Maintainable
• Enough guidance for Verification /
Inspection
• Note: "lack of guidance" also
abused by some Member States
b db M b St t
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40. Challenges Evaluation / Part
Certificate
f
• Intended for Type Approval
Notified Body
Contain information on:
• Compatibility
• Verification / Inspection
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41. Please remember …
It takes more than a good meter
to
t make a good measurement
k d t
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42. Summary
Our angles may differ, but you too
are f
faced with:
d ih
• Compatibility of devices
• Cooperation with competitors
• Modifications
• Users with strange applications
• L
Legal peculiarities
l li iti
• We do our best to fit in
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