Gas meters - Turbine gas meters

To harmonize the standard under the MID, 2004/22/EC.  The Target dates have been shortened in order to meet the enforcement date of the MID.

Gaszähler - Turbinenradgaszähler

Der erste Absatz ist zu streichen und wie folgt zu ersetzen:
Die vorliegende Norm beschreibt die Messbedingungen, Anforderungen und Prüfungen hinsichtlich Konstruktion, Leistung und Sicherheit eines Klasse 1,0 axial und radial Turbinenradgaszählers mit mechanischen Anzeigegeräten (im Folgenden Zähler genannt) mit in der Hauptleitung liegenden Anschlüssen zur Durchflussmessung
Der zweite Absatz ist zu streichen und wie folgt zu ersetzen:
Die vorliegende Norm gilt für Turbinenradgaszähler, die zur Volumenmessung von Brenngasen der 1. und 2. Gasfamilie, deren Zusammensetzung in EN 437 angegeben ist, bei maximalen Betriebsdrücken bis zu 420 bar und Betriebsdurchflüssen bis zu 25 000 m3/h über einen Gastemperaturbereich von mindestens 40 K und einen Umgebungstemperaturbereich von mindestens 50 K benutzt werden.
Der dritte Absatz ist zu streichen und wie folgt zu ersetzen:
Die vorliegende Norm gilt für Zähler an Standorten an denen unbedeutende Schwingungen und Erschütterungen auftreten können sowie an
   geschlossenen Standorten (innen oder außen mit dem vom Hersteller vorgeschriebenen Schutz) mit oder ohne Betauung
oder bei entsprechender Angabe durch den Hersteller
   offenen Standorten (außen ohne Abdeckung) mit  oder ohne Betauung
sowie an Standorten mit elektromagnetischen Störungen.
Der folgende vierte Absatz ist neu einzufügen:
Soweit in dieser Norm nicht anders angegeben:
   sind alle dargestellten Drücke als Überdrücke zu verstehen;
werden alle Einflussgrößen außer der geprüften Einflussgröße relativ konstant bei ihrem Referenzwert gehalten

Compteurs a gaz - Compteurs de gaz a turbine

Supprimer le premier paragraphe et le remplacer par ce qui suit :
« La présente Norme européenne définit les conditions de mesure, les exigences et les essais applicables a la construction, a la performance et a la sécurité des compteurs de gaz a turbine axiale et radiale de classe 1,0 munis d’indicateurs mécaniques, désignés ci-apres sous l’appellation « compteurs », ayant des raccordements sur des canalisations en ligne pour mesure de débit des gaz. »
Supprimer le deuxieme paragraphe et le remplacer par ce qui suit :
« La présente Norme européenne s'applique aux compteurs de gaz a turbine utilisés pour mesurer le volume des gaz combustibles des 1ere et 2eme familles de gaz, dont la composition est spécifiée dans l’EN 437, a des pressions maximales de service allant jusqu'a 420 bar, a des débits réels allant jusqu'a 25 000 m3/h sur une plage de températures du gaz d’au moins 40 K et une plage de température d’environnement climatique d’au moins 50 K. »
Supprimer le troisieme paragraphe et le remplacer par ce qui suit :
« La présente norme s'applique aux compteurs installés dans des endroits ou les vibrations et les chocs sont peu importants et :
·   dans des endroits fermés (a l'intérieur ou a l'extérieur avec la protection spécifiée par le fabricant) avec ou sans condensation d'humidité ;
ou, si le constructeur le spécifie,
·   dans des endroits ouverts (a l'extérieur sans protection) avec ou sans condensation d'humidité ;
ainsi que dans des endroits avec interférences électromagnétiques. »
Insérer ce qui suit comme nouveau quatrieme paragraphe :
« Sauf spécification contraire dans la présente norme :
-   toutes les pressions sont des pressions relatives ;
toutes les grandeurs d'influence, sauf celle qui est soumise a l'essai, sont maintenues constantes a leur valeur de référence. »

Plinomeri – Turbinski plinomeri – Dopolnilo A1

General Information

Status
Withdrawn
Publication Date
31-Aug-2006
Withdrawal Date
11-Apr-2018
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
05-Mar-2018
Due Date
28-Mar-2018
Completion Date
12-Apr-2018

RELATIONS

Effective Date
01-May-2018

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Amendment
SIST EN 12261:2004/A1:2006
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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 12261:2004/A1:2006
01-september-2006
Plinomeri – Turbinski plinomeri – Dopolnilo A1
Gas meters - Turbine gas meters
Gaszähler - Turbinenradgaszähler
Compteurs a gaz - Compteurs de gaz a turbine
Ta slovenski standard je istoveten z: EN 12261:2002/A1:2006
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.40 Sistemi za oskrbo s plinom Gas supply systems
SIST EN 12261:2004/A1:2006 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN 12261:2002/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2006
ICS 17.120.10
English Version
Gas meters - Turbine gas meters
Compteurs à gaz - Compteurs à gaz à turbine Gaszähler - Turbinenradgaszähler

This amendment A1 modifies the European Standard EN 12261:2002; it was approved by CEN on 20 March 2006.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this

amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references concerning such

national standards may be obtained on application to the Central Secretariat or to any CEN member.

This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the

responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,

Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,

Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12261:2002/A1:2006: E

worldwide for CEN national Members.
---------------------- Page: 2 ----------------------
EN 12261:2002/A1:2006 (E)
Contents Page

Foreword ..........................................................................................................................................................3

1 Clause 1 Scope ...................................................................................................................................4

2 Clause 3 Terms, definitions and symbols.........................................................................................4

3 Clause 4 Meter classification .............................................................................................................5

4 Clause 5 Metrological performance requirements ...........................................................................5

5 Clause 6 Design and material requirements.....................................................................................6

6 Clause 7 Meter output.........................................................................................................................6

7 Clause 8 Marking.................................................................................................................................7

8 New Clause 9 Documentation ............................................................................................................7

9 Clause E.3 Error of indication ............................................................................................................8

10 New Annex, Annex ZA ........................................................................................................................8

Annex MI002...................................................................................................................................................12

11 Bibliography......................................................................................................................................14

---------------------- Page: 3 ----------------------
EN 12261:2002/A1:2006 (E)
Foreword

This document (EN 12261:2002/A1:2006) has been prepared by Technical Committee CEN/TC 237 “Gas

meters”, the secretariat of which is held by BSI.

This Amendment to the European Standard EN 12261:2002 shall be given the status of a national standard,

either by publication of an identical text or by endorsement, at the latest by November 2006, and conflicting

national standards shall be withdrawn at the latest by November 2006.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association, and supports essential requirements of EU Directive 2004/22, Measuring

Instruments Directive (MID).

For relationship with EU Directive, see informative Annex ZA, which is an integral part of this document.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,

Switzerland and United Kingdom.
Final paragraph:
Delete.
---------------------- Page: 4 ----------------------
EN 12261:2002/A1:2006 (E)
1 Clause 1 Scope
Delete the first paragraph and replace with the following:

"This European Standard specifies the measuring conditions, requirements and tests for the construction,

performance and safety of class 1,0 axial and radial turbine gas meters with mechanical indicating devices, herein

after referred to as a meter(s), having in-line pipe connections for gas flow measurement."

Delete second paragraph and replace with the following:

"This European Standard applies to turbine gas meters used to measure the volume of fuel gases of the 1st

and 2nd gas families, the composition of which is specified in EN 437, at maximum working pressures up to

420 bar, actual flow rates up to 25 000 m /h over a gas temperature range of at least 40 K and for a climatic

environmental temperature range of at least 50 K."
Delete third paragraph and replace with the following:

"This standard applies to meters that are installed in locations with vibration and shocks of low significance

and in

• closed locations (indoor or outdoor with protection as specified by the manufacturer) with

condensing or with non-condensing humidity
or, if specified by the manufacturer,

• open locations (outdoor without any covering) with condensing humidity or with non-condensing

humidity
and in locations with electromagnetic disturbances."
Insert the following as a new fourth paragraph:
"Unless otherwise specified in this standard:
• all pressures used are gauge;

• all influence quantities, except the one under test, are kept relatively constant at their reference

value."
2 Clause 3 Terms, definitions and symbols
3.1.1 turbine gas meter
Include the following as the final sentence:

"It is designed to measure, memorize and display the volume of a fuel gas that has passed through it"

3.1.7.4 working temperature range
Delete title and replace with the following:
"operating temperature range"
---------------------- Page: 5 ----------------------
EN 12261:2002/A1:2006 (E)
Add the following as definitions:
"3.1.15 class 1,0 meter

"meter which has an error of indication between –2% an + 2% for flow rates Q where Q < Q < Q , -1 % and

min t

+1 % for flow rates Q where Q < Q < Q and when the errors between Q and Q all have the same sign,

t max t max
they do all not exceed 0,5 %
"3.1.16 Q
min

"lowest flowrate at which the gas meter provides indications that satisfy the requirements regarding maximum

permissible error (MPE)
"3.1.17 Q
max

"highest flowrate at which the gas meter provides indications that satisfy the requirements regarding MPE

"3.1.18 Q

"transitional flowrate, the flowrate occurring between the maximum and minimum flowrates at which the

flowrate range is divided into two zones, the ‘upper zone’ and the ‘lower zone’. Each zone has a characteristic

MPE.
"3.1.19 Q

"overload flowrate, the highest flowrate at which the meter operates for a short period of time without

deteriorating"
3 Clause 4 Meter classification
4.2 Gas meter sizes, rangeability and connection diameter sizes
Delete first sentence and replace with the following:

"Gas meters shall be classified as class 1,0 with the maximum and minimum flow rates and nominal diameters as

shown in table 3."

Table 3 – Authorized values of maximum flow rates, corresponding minimum flow rates and nominal

diameters
Delete the second column entitled "1:10".
Add the following as a new clause:
4.5 Climatic environment

"The climatic environment ranges for which the meter is designed to perform within the standard performance

specification shall be stated."
4 Clause 5 Metrological performance requirements
5.2.1.1 Requirements
Table 5 – Transitional flow rate Q
Delete the row for Rangeability "1:10".
Insert the following as a new second paragraph, directly proceeding Table 5:

"When the errors between Q and Q all have the same sign, they shall all not exceed 0,5 %."

t max
---------------------- Page: 6 ----------------------
EN 12261:2002/A1:2006 (E)
5.2.1.2 Test
Table 6 – Test flow rates in % Q
max
Delete the first column entitled "1:10".
5.2.2 Stability
Delete title of clause and replace with the following:
"5.2.2 Metrological Stability "
5.2.4.1 Requirements
Insert the following as a new final paragraph:

"After the test, the error of indication shall not exceed the maximum permissible error giv

...

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