Water meters - Part 1: General requirements

This document applies to water meters intended for residential, commercial, light industrial and industrial use, and specifies the requirements and certification procedures for water meters, irrespective of the design technologies used to meter the actual volume of clean cold potable water or heated water, flowing through a fully charged, closed conduit. These water meters shall incorporate devices, which indicate the integrated volume.
This document also applies to water meters based on electrical or electronic principles, and to water meters based on mechanical principles incorporating electronic devices, used to meter the actual volume flow of cold potable water or heated water. It provides metrological requirements for electronic ancillary devices when they are subject to metrological control. As a rule the ancillary devices are optional. However national or international regulations make some ancillary devices mandatory in relation to the utilisation of the water meter.

Wasserzähler - Teil 1: Allgemeine Anforderungen

Dieses Dokument gilt für Wasserzähler, die für den Einsatz in privaten und gewerblichen Bereichen sowie im Bereich der Leichtindustrie und Industrie bestimmt sind. Es legt, ungeachtet der Technologie, die Anforderungen und Zertifizierungsverfahren für Wasserzähler fest, die zur Messung des tatsächlichen Volumens von sauberem, kaltem Trinkwasser oder erwärmtem Wasser, das durch eine voll gefüllte, geschlossene Leitung fließt, eingesetzt werden. Diese Zähler müssen mit Einrichtungen versehen sein, die das summierte Volumen anzeigen.
Dieses Dokument gilt ebenso für Wasserzähler nach elektrischem oder elektronischem Funktionsprinzip und für Wasserzähler nach mechanischem Funktionsprinzip mit elektronischen Einrichtungen, die zur Messung des tatsächlichen Durchflussvolumens von kaltem Trinkwasser oder erwärmtem Wasser dienen. Es legt messtechnische Anforderungen an elektronische Zusatzeinrichtungen fest, soweit diese messtechnisch zu überwachen sind. In der Regel sind Zusatzeinrichtungen nicht zwingend erforderlich. Jedoch werden in nationalen oder internationalen Regelungen einige Zusatzeinrichtungen für die Verwendung von Wasserzählern verbindlich vorgeschrieben.

Compteurs d'eau - Partie 1: Exigences générales

Le présent document s’applique aux compteurs d’eau destinés à une utilisation résidentielle, commerciale, industrielle légère et industrielle, et spécifie les exigences et les procédures de certification pour les compteurs d’eau, indépendamment des technologies de conception, utilisés pour mesurer le volume réel d’eau potable froide ou d’eau chaude s’écoulant dans une conduite fermée et à pleine charge. Ces compteurs d’eau doivent incorporer des dispositifs indiquant le volume intégré.
Le présent document s’applique aussi aux compteurs d’eau conçus à partir de principes électriques ou électroniques ainsi qu’aux compteurs d’eau conçus à partir de principes mécaniques incorporant des dispositifs électroniques, utilisés pour mesurer le volume débité réel d’eau potable froide ou d’eau chaude. Il fournit des exigences métrologiques pour les dispositifs électroniques auxiliaires lorsqu’ils sont soumis à un contrôle métrologique. Généralement, les dispositifs auxiliaires sont facultatifs. Cependant, des réglementations nationales ou internationales peuvent rendre certains dispositifs auxiliaires obligatoires selon l’utilisation du compteur d’eau.

Vodomeri - 1. del: Splošne zahteve

Ta dokument velja za vodomere, namenjene stanovanjski, gospodarski, lahki industrijski in industrijski uporabi ter določa zahteve in postopke certificiranja za vodomere, ne glede na tehnologije načrtovanja, uporabljene za merjenje dejanskega volumna čiste hladne pitne vode ali segrete vode, ki teče skozi popolnoma poln, zaprt vod. Ti vodomeri vsebujejo naprave, ki navajajo celoten volumen.
Ta dokument prav tako velja za vodomere, zasnovane na električnih ali elektronskih principih, in za vodomere, zasnovane na mehanskih principih, ki vsebujejo elektronske naprave, uporabljene za merjenje dejanskega volumna pretoka hladne pitne vode ali segrete vode. Zagotavlja metrološke zahteve za elektronske pomožne naprave, kadar so predmet metrološkega nadzora. Praviloma so pomožne naprave izbirne. Vendar državni ali mednarodni predpisi navajajo nekatere pomožne naprave kot obvezne v povezavi z uporabo vodomerov.

General Information

Status
Withdrawn
Publication Date
04-May-2011
Withdrawal Date
04-Jun-2014
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
05-Jun-2014
Due Date
28-Jun-2014
Completion Date
05-Jun-2014

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Vodomeri - 1. del: Splošne zahteveWasserzähler - Teil 1: Allgemeine AnforderungenCompteurs d'eau - Partie 1: Exigences généralesWater meters - Part 1: General requirements91.140.60Sistemi za oskrbo z vodoWater supply systemsICS:Ta slovenski standard je istoveten z:EN 14154-1:2005+A2:2011SIST EN 14154-1:2005+A2:2011en,de01-junij-2011SIST EN 14154-1:2005+A2:2011SLOVENSKI

STANDARD
SIST EN 14154-1:2005+A2:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14154-1:2005+A2
April 2011 ICS 91.140.60 Supersedes EN 14154-1:2005+A1:2007English Version
Water meters - Part 1: General requirements
Compteurs d'eau - Partie 1: Exigences générales

Wasserzähler - Teil 1: Allgemeine Anforderungen This European Standard was approved by CEN on 26 August 2004 and includes Amendment 1 approved by CEN on 6 March 2007 and Amendment 2 approved by CEN on 3 January 2011.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard 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 CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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:
Avenue Marnix 17,

B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14154-1:2005+A2:2011: ESIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 2 Contents Page Foreword ..............................................................................................................................................................41Scope ......................................................................................................................................................52Normative references ............................................................................................................................53Terms and definitions ...........................................................................................................................54Technical characteristics ................................................................................................................... 124.1Meter size and overall dimensions ................................................................................................... 124.1.1Meter size ............................................................................................................................................. 124.1.2Dimensions of in-line meters ............................................................................................................. 124.1.3Dimensions of concentric meters ..................................................................................................... 154.1.4#Dimensions of cartridge meters$ ............................................................................................. 164.1.5#Dimensions of exchangeable metrological units$ ................................................................. 164.2#Meter end connections$ ............................................................................................................ 234.2.1Connections interfaces ...................................................................................................................... 23 4.2.2Threaded end connections ................................................................................................................ 234.2.3Flanged connection ............................................................................................................................ 234.2.4Connection for bolting in between flanges ...................................................................................... 244.2.5Dimensions for manifold(s) for concentric meters ......................................................................... 244.3Indicating device ................................................................................................................................. 244.3.1General requirements ......................................................................................................................... 244.3.2Types of indicating device ................................................................................................................. 264.3.3Verification devices – First element – Verification scale interval .................................................. 264.4Water meters which utilise electronic devices ................................................................................ 274.4.1Checking facilities .............................................................................................................................. 274.4.2Power supply ....................................................................................................................................... 274.4.3Correction device................................................................................................................................ 294.4.4Calculator ............................................................................................................................................ 294.4.5Ancillary device................................................................................................................................... 294.5Materials and construction ................................................................................................................ 294.6Protection against solid particles ..................................................................................................... 304.7Reverse flow ........................................................................................................................................ 304.8Meter security and protection against fraud .................................................................................... 304.8.1Mechanical protection devices .......................................................................................................... 304.8.2Electronic sealing devices ................................................................................................................. 305Meter classification............................................................................................................................. 315.1Meter pressure classes ...................................................................................................................... 315.1.1Admissible water pressure ................................................................................................................ 315.1.2Internal pressure ................................................................................................................................. 315.1.3Concentric meters .............................................................................................................................. 325.2Meter temperature classes ................................................................................................................ 325.3Flow profile sensitivity classes ......................................................................................................... 325.4Pressure loss ...................................................................................................................................... 336Marking ................................................................................................................................................ 347Metrological characteristics .............................................................................................................. 357.1Permanent flowrate (Q3) .................................................................................................................... 357.2Measuring range ................................................................................................................................. 357.3Relationship between permanent flowrate (Q3) and overload flowrate (Q4) ................................ 367.4The relationship between transitional flowrate (Q2) and minimum flowrate (Q1) ........................ 367.5Reference flowrate .............................................................................................................................. 36SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 3 7.6Maximum permissible error................................................................................................................ 367.6.1Sign of the error ................................................................................................................................... 367.6.2Relative error, εεεε .................................................................................................................................... 367.6.3MPE lower flow range ......................................................................................................................... 367.6.4MPE upper flow range ......................................................................................................................... 377.6.5Maximum permissible errors in service ............................................................................................ 377.6.6Absence of flow ................................................................................................................................... 377.7Meters with subassemblies ................................................................................................................ 378Meter performance requirements ...................................................................................................... 388.1Measurement error tests..................................................................................................................... 388.2#Interchange error tests$ ............................................................................................................. 388.3Pressure tests ...................................................................................................................................... 388.4Pressure loss tests .............................................................................................................................. 388.5Overload temperature tests ................................................................................................................ 388.6Climatic and mechanical environment .............................................................................................. 388.7Electromagnetic environment ............................................................................................................ 398.8Static magnetic field ............................................................................................................................ 398.9Endurance ............................................................................................................................................ 409Metrological control ............................................................................................................................ 409.1Pattern approval .................................................................................................................................. 409.1.1Extent of pattern approval .................................................................................................................. 409.1.2Objective of pattern approval ............................................................................................................. 409.1.3Number of meters to be tested .......................................................................................................... 419.1.4Test verdict .......................................................................................................................................... 419.2Initial verification ................................................................................................................................. 419.2.1General ................................................................................................................................................. 419.2.2Static pressure test ............................................................................................................................. 419.2.3Error (of indication) measurements .................................................................................................. 419.2.4Water temperature of tests ................................................................................................................. 42Annex A (normative)

Checking facilities ........................................................................................................ 43A.1Action of checking facilities ............................................................................................................... 43A.2Checking facilities for the measurement transducer ...................................................................... 43A.2.1Pulse input solutions .......................................................................................................................... 43A.2.2Other technologies .............................................................................................................................. 44A.3Checking facilities for the calculator ................................................................................................. 44A.3.1Checking of correct functioning ........................................................................................................ 44A.3.2Checking of the validity of calculations ............................................................................................ 45A.4Checking facility for the indicating device ....................................................................................... 45A.4.1First possibility .................................................................................................................................... 45A.4.2Second possibility ............................................................................................................................... 46A.5Checking facilities for ancillary devices ........................................................................................... 46A.6Checking facilities for the associated measuring instruments ...................................................... 46Annex B (normative)

In-line meter dimensions (including alternative lengths) ......................................... 47Annex C (informative)

Table of rated operating, limiting and references conditions ................................ 50Annex D (informative)

Test program ............................................................................................................... 52Annex ZA (informative)

!Relationship between this European Standard and the Essential Requirements of EU Directive 22/2004/EC on Measuring Instruments" .................................... 53Bibliography ...................................................................................................................................................... 63 SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 4 Foreword This document (EN 14154-1:2005+A2:2011) has been prepared by Technical Committee CEN/TC 92 “Water meters”, the secretariat of which is held by SNV. This document shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2011 and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document includes Amendment 1, approved by CEN on 2007-03-06 and Amendment 2, approved by CEN on 2011-01-03. This document supersedes #EN 14154-1:2005+A1:2007$. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! "

and # $. This European Standard 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(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The standard consists of 3 parts. The other parts are:  Part 2: Installation and conditions of use  Part 3: Test methods and equipment In developing a new Standard, CEN/TC 92 aimed to harmonise it with existing standards and recommendations for water meters, to accommodate new technologies and anticipating the requirements of the Directive 22/2004/EC on Measuring Instruments. In respect of potential adverse affects on the quality of water intended for human consumption, caused by the product covered in this standard: 1. This standard provides no information as to whether the product may be used without restriction in any of the Member States of the EU of EFTA; 2. It should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, 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.

SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 5 1 Scope This document applies to water meters intended for residential, commercial, light industrial and industrial use, and specifies the requirements and certification procedures for water meters, irrespective of the design technologies used to meter the actual volume of clean cold potable water or heated water, flowing through a fully charged, closed conduit. These water meters shall incorporate devices, which indicate the integrated volume. This document also applies to water meters based on electrical or electronic principles, and to water meters based on mechanical principles incorporating electronic devices, used to meter the actual volume flow of cold potable water or heated water. It provides metrological requirements for electronic ancillary devices when they are subject to metrological control. As a rule the ancillary devices are optional. However national or international regulations make some ancillary devices mandatory in relation to the utilisation of the water meter. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1333:1996, Pipework components — Definition and selection of PN #EN 14154-2:2005+A2:2011$, Water meters — Part 2: Installation and condition of use #EN 14154-3:2005+A2:2011$, Water meters — Part 3: Test methods and equipment EN ISO 228-1:2000, Pipe threads where pressure-tight joints are not made on the threads — Part 1: Dimensions, tolerances and designation (ISO 228-1:2000) EN ISO 6708:1995, Pipe components — Definition and selection of DN (nominal size) (ISO 6807:1995) ISO 3:1973, Preferred numbers — Series of preferred numbers ISO 7005-2:1988, Metallic flanges — Part 2: Cast iron flanges ISO 7005-3:1988, Metallic flanges — Part 3: Copper alloy and composite flanges 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 water meter (OIML R49-1:2000) an instrument intended to measure continuously, memorise and display the volume of water passing through it within rated operating conditions NOTE A meter includes at least a measurement transducer, a calculator (including adjustment or correction devices if present) and an indicating device. These three devices may be in different housings. 3.2 in-line meter (OIML R49-2:2001) a type of water meter fitted into a closed conduit by means of the meter end connections (either threaded or flanged) provided SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 6 3.3 complete meter (OIML R49-2:2001) a meter which does not have separable measurement transducer (including flow sensor) and calculator (including indicating device) 3.4 combined meter (OIML R49-2:2001) a meter which has separable measurement transducer (including flow sensor) and calculator (including indicating device) 3.5 combination meter (ISO 7858-1:1998) an in-line type of water meter comprising one large flowrate meter, one small flowrate meter, and a changeover device that, depending on the magnitude of the flowrate passing through the meter, automatically directs the flow through either the small or large meter or both Meter reading is obtained from two independent totalizers or 1 totalizer which adds up the values from both water meters. 3.6 concentric meter (OIML R49-2:2001) a type of water meter fitted into a closed conduit by means of an intermediate fitting called a manifold. The inlet and outlet passages of the meter and the manifold, at the interface between them, are coaxial 3.7 concentric meter manifold (OIML R49-2:2001) the pipefitting specific to the connection of a concentric meter #3.8 cartridge meter type of water meter fitted into a closed conduit by means of an intermediate fitting called a connection interface NOTE The inlet and outlet passages of the meter and the connection interface are either concentric or axial as detailed in EN 14154-2:2005+A2:2011, Annex B. 3.9 cartridge meter connection interface pipefitting specific to the connection of an axial or concentric cartridge meter 3.10 meters with exchangeable metrological unit meter with Q3 ≥ 16 m3/h comprising a connection interface and an exchangeable metrological unit, from the same pattern approval, i.e. from the identical manufacturer as a matter of principle 3.11 exchangeable metrological unit self contained unit comprising a measurement transducer and an indicating device or alternatively a calculator including indicating device where applicable 3.12 connection interfaces for meters with exchangeable metrological units pipefitting specific to the connection of exchangeable metrological units$ 3.13 measurement transducer (OIML R49-1:2000) a part of the meter which transforms the flow or the volume of the water to be measured into signals which are passed to the calculator. It can be based on a mechanical or an electrical or an electronic principle. It may be autonomous or use an external power source SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 7 NOTE For the purposes of this document, the measurement transducer includes the flow sensor or volume sensor. 3.14 flow sensor or volume sensor (OIML R49-1:2000) that part of the water meter (such as a disc, piston, wheel, turbine element, or electromagnetic coil) which senses the flowrate or volume of water passing through the meter 3.15 calculator (OIML R49-1:2000) a part of the meter which receives the output signals from the transducer(s) and, possibly, from associated measuring instruments, transforms them and, if appropriate, stores the results in memory until they are used. In addition, the calculator may be capable of communicating both ways with ancillary devices 3.16 indicating device (OIML R49-1:2000) a part of the meter which displays the measurement results either continuously or on demand NOTE A printing device which provides an indication at the end of the measurement is not an indicating device. 3.17 sub-assembly (OIML R49-2:2001) the measurement transducer, (including flow sensor) and the indicating device (including calculator) of a combined meter 3.18 adjustment device (OIML R49-1:2000) a device incorporated in the meter, that only allows the error curve to be shifted generally parallel to itself, with a view to bringing errors (of indication) within the maximum permissible errors 3.19 correction device (OIML R49-1:2000) a device connected to or incorporated in the meter for automatically correcting the volume at metering conditions, by taking into account the flowrate and/or the characteristics of the water to be measured (e.g. temperature and pressure) and the pre-established calibration curves. The characteristics of the water to be measured may either be measured using associated measuring instruments, or be stored in a memory in the instrument 3.20 ancillary device (OIML R49-1:2000) a device intended to perform a particular function, directly involved in elaborating, transmitting or displaying measurement results The main ancillary devices are:  zero setting device;  price indicating device;  repeating indicating device;  printing device;  memory device;  tariff control device;  pre-setting device; and SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 8  self service device. 3.21 associated measuring instruments (OIML R49-1:2000) instruments connected to the calculator, the correction device or the conversion device, for measuring certain quantities which are characteristic of water, with a view to making a correction and/or a conversion 3.22 primary indication indication, (displayed, printed or memorized), which is subject to legal metrological control 3.23 first element of the indicating device (OIML R49-1:2000) the element which, in an indicating device comprising several elements, carries the graduated scale with the verification scale interval 3.24 verification scale interval (OIML R49-1:2000) the lowest value scale division of the first element of the indicating device 3.25 equipment under test (EUT) (OIML R49-2:2001) a complete water meter, a sub-assembly of a water meter or an ancillary device. 3.26 actual volume, Va (OIML R49-1:2000) total volume of water passing through the water meter, disregarding the time taken. This is the measurand 3.27 indicated volume, Vi (OIML R49-1:2000) volume of water indicated by the meter, corresponding to the actual volume 3.28 flowrate, Q (OIML R49-1:2000) quotient of the actual volume of water passing through the water meter and the time taken for this volume to pass through the water meter. It is expressed in m3/h 3.29 minimum flowrate, Q1 (OIML R49-1:2000) the lowest flowrate at which the water meter is required to operate within the maximum permissible error 3.30 transitional flowrate, Q2 (OIML R49-1:2000) flowrate which occurs between the permanent flowrate Q3 , and minimum flowrate Q1, that divides the flowrate range into two zones, the “upper zone” and the “lower zone”, each characterized by its own maximum permissible error 3.31 permanent flowrate, Q3 (OIML R49-1:2000) the highest flowrate within the rated operating conditions, at which the water meter is required to operate in a satisfactory manner within the maximum permissible error 3.32 overload flowrate, Q4 (OIML R49-1:2000) the highest flowrate at which the water meter is required to operate, for a short period of time, within its maximum permissible error, whilst maintaining its metrological performance when it is subsequently operated within its rated operating conditions SIST EN 14154-1:2005+A2:2011

EN 14154-1:2005+A2:2011 (E) 9 3.33 combination meter change-over flowrate, Qx (ISO 7858-1:1998) change-over flowrate Qx1 occurs at decreasing flowrates when the pressure drop in the combination meter increases suddenly in parallel with a cessation of flow in the larger meter and a visible increase in the flow in the smaller meter Change-over flowrate Qx2 occurs at increasing flowrates when the pressure drop in the combination meter decreases suddenly in parallel with a start-up of flow in the larger meter and a visible reduction in the flow in the smaller meter. 3.34 test flowrate (OIML R49-2:2001) the mean flowrate during a test, calculated from the indications of a calibrated reference device. The quotient of the actual volume passing through the water meter divided by the time for that volume to pass through the water meter 3.35 Maximum Permissible Error (MPE) (OIML R49-1:2000) extreme values of the relative error (of indication) of a water meter permitted by this document 3.36 error of indication (VIM:1993, 5.20 adapted) indicated volume minus the actual volume 3.37 relative error, εεεε (VIM:1993, 3.12 adapted) error (of indication) divided by the actual volume 3.38 intrinsic error (OIML R49-1:2000) the error (of indication) of a meter determined under reference conditions 3.39 initial intrinsic error (OIML R49-

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