SIST EN ISO 4064-1:2014
(Main)Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2014)
Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2014)
EN ISO 4064-1 specifies the metrological and technical requirements for water meters for cold potable water and hot water flowing through a fully charged, closed conduit. These water meters incorporate devices which indicate the integrated volume. In addition to water meters based on mechanical principles, this part of ISO 4064|OIML R 49 applies to devices based on electrical or electronic principles, and mechanical principles incorporating electronic devices, used to measure the volume of cold potable water and hot water. This part of ISO 4064|OIML R 49 also applies to electronic ancillary devices. Ancillary devices are optional. However, it is possible for national or regional regulations to render some ancillary devices mandatory in relation to the utilization of water meters.
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 1: Metrologische und technische Anforderungen (ISO 4064-1:2014)
1.1 Der vorliegende Teil der ISO 4064/OIML R 49 gilt für Wasserzähler zur Volumenmessung von kaltem Trinkwasser und heißem Wasser, das durch eine voll gefüllte, geschlossene Leitung fließt. Diese Wasserzähler müssen mit Einrichtungen versehen sein, die das summierte Volumen anzeigen.
1.2 Der vorliegende Teil der ISO 4064/OIML R 49 legt die Bedingungen fest, die die Wasserzähler erfüllen müssen, um den Anforderungen des gesetzlichen Messwesens in den Ländern zu entsprechen, in denen diese Messgeräte der staatlichen Aufsicht unterliegen.
1.3 Der vorliegende Teil der ISO 4064/OIML R 49 gilt außerdem für Wasserzähler nach elektrischem oder elektronischem Funktionsprinzip und für Wasserzähler nach mechanischem Funktionsprinzip mit elektronischen Einrichtungen, die zur Messung des Durchflussvolumens von heißem Wasser und von kaltem Trinkwasser
dienen. Er gilt außerdem für elektronische Zusatzeinrichtungen. Zusatzeinrichtungen sind optional.
Jedoch können in nationalen oder internationalen Regelungen einige Zusatzeinrichtungen hinsichtlich der
Verwendung von Wasserzählern verbindlich vorgeschrieben sein.
1.4 Zusätzlich zu den in diesem Teil festgelegten Anforderungen sind Untersuchungs- und Prüfverfahren in
Teil 2 enthalten, ein Format des Prüfberichts ist in Teil 3 enthalten und es gibt zusätzliche technische
Anforderungen in Teil 4 sowie Einbaubedingungen in Teil 5.
Compteurs d'eau potable froide et d'eau chaude - Partie 1: Exigences métrologiques et techniques (ISO 4064-1:2014)
L'ISO 4064-1:2014|OIML R 49-1:2013 spécifie les exigences métrologiques et techniques applicables aux compteurs d'eau potable froide et d'eau chaude circulant dans une conduite fermée entièrement chargée. Ces compteurs d'eau comportent des dispositifs indiquant le volume compté.
En plus des compteurs d'eau dont le fonctionnement est basé sur des principes mécaniques, l'ISO 4064-1:2014|OIML R 49-1:2013 s'applique aux dispositifs dont le fonctionnement est basé sur un principe électrique ou électronique, ainsi qu'à un fonctionnement mécanique incluant des dispositifs électroniques utilisés pour mesurer le volume débité d'eau potable froide et d'eau chaude.
L'ISO 4064-1:2014|OIML R 49-1:2013 s'applique également à des dispositifs électroniques auxiliaires. Les dispositifs auxiliaires sont facultatifs. Il est cependant possible que des réglementations nationales ou régionales rendent certains dispositifs auxiliaires obligatoires selon l'utilisation du compteur d'eau.
Vodomeri za merjenje hladne pitne vode in vroče vode - 1. del: Metrološke in tehnične zahteve (ISO 4064-1:2014)
Standard EN ISO 4064-2 določa metrološke in tehnične zahteve za vodomere za merjenje hladne pitne vode in vroče vode, ki teče skozi zaprto cev s polnim pretokom. Ti vodomeri imajo vgrajene naprave, ki prikazujejo vgrajen pretok. Poleg mehansko delujočih vodomerov se ta del standarda ISO 4064|OIML R 49 uporablja za električno ali elektronsko delujoče naprave in naprave, delujoče na podlagi mehanskih načel z vgrajenimi elektronskimi napravami, ki se uporabljajo za merjenje pretoka hladne pitne vode in vroče vode. Ta del standarda ISO 4064|OIML R 49 se uporablja tudi za elektronske pomožne naprave. Pomožne naprave so izbirne. Kljub temu lahko nacionalni ali regijski predpisi določajo obvezno uporabo nekaterih pomožnih naprav v povezavi z uporabo vodomerov.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4064-1:2014
01-julij-2014
1DGRPHãþD
SIST EN 14154-1:2005+A2:2011
SIST EN 14154-2:2005+A2:2011
SIST EN 14154-3:2005+A2:2011
9RGRPHUL]DPHUMHQMHKODGQHSLWQHYRGHLQYURþHYRGHGHO 0HWURORãNHLQ
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Water meters for cold potable water and hot water - Part 1: Metrological and technical
requirements (ISO 4064-1:2014)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 1:
Metrologische und technische Anforderungen (ISO 4064-1:2014)
Compteurs d'eau potable froide et d'eau chaude - Partie 1: Exigences métrologiques et
techniques (ISO 4064-1:2014)
Ta slovenski standard je istoveten z: EN ISO 4064-1:2014
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.60 Sistemi za oskrbo z vodo Water supply systems
SIST EN ISO 4064-1:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 4064-1:2014
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SIST EN ISO 4064-1:2014
EUROPEAN STANDARD
EN ISO 4064-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2014
ICS 91.140.60 Supersedes EN 14154-1:2005+A2:2011, EN 14154-
2:2005+A2:2011, EN 14154-3:2005+A2:2011
English Version
Water meters for cold potable water and hot water - Part 1:
Metrological and technical requirements (ISO 4064-1:2014)
Compteurs d'eau potable froide et chaude - Partie 1: Wasserzähler zum Messen von kaltem Trinkwasser und
Exigences métrologiques et techniques (ISO 4064-1:2014) heißem Wasser - Teil 1: Metrologische und technische
Anforderungen (ISO 4064-1:2014)
This European Standard was approved by CEN on 21 September 2013.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4064-1:2014 E
worldwide for CEN national Members.
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SIST EN ISO 4064-1:2014
EN ISO 4064-1:2014 (E)
Contents Page
Foreword .3
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of Requirements of EU Directive 2004/22/EC .4
2
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SIST EN ISO 4064-1:2014
EN ISO 4064-1:2014 (E)
Foreword
This document (EN ISO 4064-1:2014) has been prepared by Technical Committee ISO/TC 30 “Measurement
of fluid flow in closed conduits” in collaboration with Technical Committee CEN/TC 92 “Water meters” the
secretariat of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by December 2014, and conflicting national standards shall be withdrawn
at the latest by December 2014.
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 supersedes EN 14154-1:2005+A2:2011, EN 14154-2:2005+A2:2011,
EN 14154-3:2005+A2:2011.
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(s).
For relationship with EU Directive(s), 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, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 4064-1:2014 has been approved by CEN as EN ISO 4064-1:2014 without any modification.
3
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SIST EN ISO 4064-1:2014
EN ISO 4064-1:2014 (E)
Annex ZA
(informative)
Relationship between this European Standard and the Essential
Requirements of Requirements of EU Directive 2004/22/EC
This European Standard has been prepared under a mandate given to CEN by the European Commission
and the European Free Trade Association to provide one means of conforming to Essential Requirements of
the New Approach Directive 2004/22/EC, Measuring instruments directive.
Once this standard is cited in the Official Journal of the European Communities under that Directive and has
been implemented as a national standard in at least one Member State, compliance with the normative
clauses of this standard confers, within the limits of the scope of this standard, a presumption of conformity
with the relevant Essential Requirements of that Directive and associated EFTA regulations.
WARNING: Other requirements and other EU Directives may be applicable to the products falling within the
scope of this standard.
4
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SIST EN ISO 4064-1:2014
INTERNATIONAL ISO
STANDARD 4064-1
Fourth edition
2014-06-01
Water meters for cold potable water
and hot water —
Part 1:
Metrological and technical
requirements
Compteurs d’eau potable froide et d’eau chaude —
Partie 1: Exigences métrologiques et techniques
Reference number
ISO 4064-1:2014(E)
©
ISO 2014
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Water meter and its constituents. 1
3.2 Metrological characteristics . 5
3.3 Operating conditions . 6
3.4 Test conditions . 8
3.5 Electronic and electrical equipment .10
3.6 Use of certain terms within the European Economic Area .11
4 Metrological requirements .11
4.1 Values of Q , Q , Q , and Q .
1 2 3 4 11
4.2 Accuracy class and maximum permissible error .12
4.3 Requirements for meters and ancillary devices .13
5 Water meters equipped with electronic devices .15
5.1 General requirements .15
5.2 Power supply .15
6 Technical requirements .16
6.1 Materials and construction of water meters .16
6.2 Adjustment and correction . .17
6.3 Installation conditions.17
6.4 Rated operating conditions .19
6.5 Pressure loss .19
6.6 Marks and inscriptions .19
6.7 Indicating device .21
6.8 Protection devices .24
7 Metrological controls .24
7.1 Reference conditions .24
7.2 Type evaluation and approval .25
7.3 Initial verification .29
Annex A (normative) Performance tests for water meters with electronic devices .31
Annex B (normative) Checking facilities .33
Annex C (informative) Permissible errors in service and subsequent verification .37
Bibliography .38
© ISO 2014 – All rights reserved iii
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2, www.iso.org/directives.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received, www.iso.org/patents.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committees responsible for this document are Technical Committee ISO/TC 30, Measurement of fluid
flow in closed conduits, Subcommittee SC 7, Volume methods including water meters and OIML Technical
Subcommittee TC 8/SC 5 Water meters.
This fourth edition of ISO 4064-1 cancels and partially replaces the third edition (ISO 4064-1:2005), which
has been technically revised. Some provisions of the third edition are addressed in ISO 4064-4:2014.
ISO 4064 consists of the following parts, under the general title Water meters for cold potable water and
hot water:
— Part 1: Metrological and technical requirements
— Part 2: Test methods
— Part 3: Test report format
— Part 4: Non-metrological requirements not covered in ISO 4064-1
— Part 5: Installation requirements
This edition of ISO 4064-1 is identical to the corresponding edition of OIML R 49-1, which has been
issued concurrently. OIML R 49-1 was approved for final publication by the International Committee of
Legal Metrology at its 48th meeting in Ho Chi Minh City, Vietnam in October 2013. It will be submitted
to the International Conference on Legal Metrology in 2016 for formal sanction.
iv © ISO 2014 – All rights reserved
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SIST EN ISO 4064-1:2014
INTERNATIONAL STANDARD ISO 4064-1:2014(E)
Water meters for cold potable water and hot water —
Part 1:
Metrological and technical requirements
1 Scope
This part of ISO 4064|OIML R 49 specifies the metrological and technical requirements for water meters
for cold potable water and hot water flowing through a fully charged, closed conduit. These water meters
incorporate devices which indicate the integrated volume.
In addition to water meters based on mechanical principles, this part of ISO 4064|OIML R 49 applies to
devices based on electrical or electronic principles, and mechanical principles incorporating electronic
devices, used to measure the volume of cold potable water and hot water.
This part of ISO 4064|OIML R 49 also applies to electronic ancillary devices. Ancillary devices are
optional. However, it is possible for national or regional regulations to render some ancillary devices
mandatory in relation to the utilization of water meters.
NOTE Any national regulations apply in the country of use.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 4064-2:2014|OIML R 49-2:2013, Water meters for cold potable water and hot water — Part 2: Test
methods
3 Terms and definitions
For the purposes of this document, the following definitions apply.
[1]
NOTE This terminology conforms to that used in ISO/IEC Guide 99:2007|OIML V 2-200:2012, OIML V
[2] [3] [1] [3]
1:2013 and OIML D 11. Modified versions of some terms defined in References – are listed here.
3.1 Water meter and its constituents
3.1.1
water meter
instrument intended to measure continuously, memorize, and display the volume of water passing
through the measurement transducer at metering conditions
Note 1 to entry: A water meter includes at least a measurement transducer, a calculator (including adjustment or
correction devices, if present) and an indicating device. These three devices can be in different housings.
Note 2 to entry: A water meter may be a combination meter (see 3.1.16).
Note 3 to entry: In this International Standard, a water meter is also referred to as a “meter”.
© ISO 2014 – All rights reserved 1
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
3.1.2
measurement transducer
part of the meter that transforms the flow rate or volume of water to be measured into signals which are
passed to the calculator and includes the sensor
Note 1 to entry: The measurement transducer may function autonomously or use an external power source and
may be based on a mechanical, electrical or electronic principle.
3.1.3
sensor
element of a meter that is directly affected by a phenomenon, body or substance carrying a quantity to
be measured
[SOURCE: ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM), 3.8, modified — “meter” replaces “measuring
system”.]
Note 1 to entry: For a water meter, the sensor may be a disc, piston, wheel or turbine element, the electrodes on an
electromagnetic meter, or another element. The element senses the flow rate or volume of water passing through
the meter and is referred to as a “flow sensor” or “volume sensor”.
3.1.4
calculator
part of the meter that transforms the output signals from the measurement transducer(s) and, possibly,
from associated measuring instruments and, if appropriate, stores the results in memory until they are
used
Note 1 to entry: The gearing is considered to be the calculator in a mechanical meter.
Note 2 to entry: The calculator may be capable of communicating both ways with ancillary devices.
3.1.5
indicating device
part of the meter that provides an indication corresponding to the volume of water passing through the
meter
Note 1 to entry: For the definition of the term “indication”, see ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM),
4.1.
3.1.6
adjustment device
part of the meter that allows an adjustment of the meter such that the error curve of the meter is generally
shifted parallel to itself to fit in the envelope of the maximum permissible errors
Note 1 to entry: For the definition of the term “adjustment of a measuring system”, see ISO/IEC Guide 99:2007|OIML
V 2-200:2012 (VIM), 3.11.
3.1.7
correction device
device connected to or incorporated in the meter for automatic correction of the volume of water at
metering conditions, by taking into account the flow rate and/or the characteristics of the water to be
measured and the pre-established calibration curves
Note 1 to entry: The characteristics of the water, e.g. temperature and pressure, may be either measured using
associated measuring instruments or stored in a memory in the meter.
Note 2 to entry: For the definition of the term “correction”, see ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM),
2.53.
2 © ISO 2014 – All rights reserved
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
3.1.8
ancillary device
device intended to perform a specific function, directly involved in elaborating, transmitting or
displaying measured values
Note 1 to entry: For the definition of “measured value”, see ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM), 2.10.
Note 2 to entry: The main ancillary devices are:
a) zero-setting device;
b) price-indicating device;
c) repeating indicating device;
d) printing device;
e) memory device;
f) tariff control device;
g) pre-setting device;
h) self-service device;
i) flow sensor movement detector (for detecting movement of the flow sensor before this is clearly
visible on the indicating device);
j) remote reading device (which may be incorporated permanently or added temporarily).
Note 3 to entry: Depending on national legislation, ancillary devices may be subject to legal metrological control.
3.1.9
tariff control device
device that allocates measured values into different registers depending on tariff or other criteria, each
register having the possibility to be read individually
3.1.10
pre-setting device
device that permits the selection of the quantity of water to be measured and which automatically stops
the flow of water after the selected quantity has been measured
3.1.11
associated measuring instrument
instrument connected to the calculator or the correction device for measuring a quantity, characteristic
of water, with a view to making a correction and/or a conversion
3.1.12
meter for two constant partners
meter that is permanently installed and only used for deliveries from one supplier to one customer
3.1.13
in-line meter
type of meter that is fitted into a closed conduit by means of the meter end connections provided
Note 1 to entry: The end connections may be flanged or threaded.
3.1.14
complete meter
meter whose measurement transducer, calculator, and indicating device are not separable
© ISO 2014 – All rights reserved 3
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
3.1.15
combined meter
meter whose measurement transducer, calculator, and indicating device are separable
3.1.16
combination meter
meter comprising one large meter, one small meter, and a changeover device that, depending on the
magnitude of the flow rate passing through the meter, automatically directs the flow through either the
small or the large meter, or both
Note 1 to entry: The meter reading is obtained from two independent totalizers, or from one totalizer which adds
up the values from both water meters.
3.1.17
equipment under test
EUT
complete meter, sub-assembly or ancillary device that is subjected to a test
3.1.18
concentric meter
type of meter that is fitted into a closed conduit by means of a manifold
Note 1 to entry: The inlet and outlet passages of the meter and the manifold are coaxial at the interface between
them.
3.1.19
concentric meter manifold
pipe fitting specific to the connection of a concentric meter
3.1.20
cartridge meter
type of meter that is fitted into a closed conduit by means of an intermediate fitting called a connection
interface
Note 1 to entry: The inlet and outlet passages of the meter and the connection interface are either concentric or
axial as specified in ISO 4064-4.
3.1.21
cartridge meter connection interface
pipe fitting specific to the connection of an axial or concentric cartridge meter
3.1.22
meter with exchangeable metrological module
3
meter with a permanent flow rate ≥16 m /h, comprising a connection interface and an exchangeable
metrological module from the same type approval
3.1.23
exchangeable metrological module
self-contained module comprising a measurement transducer, a calculator and an indicating device
3.1.24
connection interface for meters with exchangeable metrological modules
pipe fitting specific to the connection of exchangeable metrological modules
4 © ISO 2014 – All rights reserved
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
3.2 Metrological characteristics
3.2.1
actual volume
V
a
total volume of water passing through the meter, disregarding the time taken
Note 1 to entry: This is the measurand.
Note 2 to entry: The actual volume is calculated from a reference volume as determined by a suitable measurement
standard, taking into account differences in metering conditions, as appropriate.
3.2.2
indicated volume
V
i
volume of water indicated by the meter, corresponding to the actual volume
3.2.3
primary indication
indication which is subject to legal metrological control
3.2.4
error
measured quantity value minus a reference quantity value
[SOURCE: ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM), 2.16]
Note 1 to entry: For the application of this part of ISO 4064|OIML R 49, the indicated volume is considered as the
measured quantity value and the actual volume as the reference quantity value. The difference between indicated
volume and actual volume is referred to as: error (of indication).
Note 2 to entry: In this International Standard, the error (of indication) is expressed as a percentage of the actual
VV−
()
ia
volume, and is equal to: ×100%
V
a
3.2.5
maximum permissible error
MPE
extreme value of measurement error, with respect to a known reference quantity value, permitted by
specifications or regulations for a given meter
[SOURCE: ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM), 4.26, modified — “meter” replaces
“measurement, measuring instrument, or measuring system”]
3.2.6
intrinsic error
error of a meter determined under reference conditions
[SOURCE: OIML D 11:2013, 3.8, modified — “meter” replaces “measuring instrument,”]
3.2.7
initial intrinsic error
intrinsic error of a meter as determined prior to performance tests and durability evaluations
[SOURCE: OIML D 11:2013, 3.9, modified — “meter” replaces “measuring instrument”]
3.2.8
fault
difference between the error (of indication) and the intrinsic error of a meter
[SOURCE: OIML D 11:2013, 3.10, modified — “of indication” placed in parentheses; “meter” replaces
“measuring instrument”]
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SIST EN ISO 4064-1:2014
ISO 4064-1:2014(E)
3.2.9
significant fault
fault greater than the value specified in this part of ISO 4064|OIML R 49
[SOURCE: OIML D 11:2013, 3.12, modified — “this part of ISO 4064|OIML R 49” replaces “the relevant
Recommendation”]
Note 1 to entry: See 5.1.2, which specifies the value of a significant fault.
3.2.10
durability
ability of a meter to maintain its performance characteristics over a period of use
[SOURCE: OIML D 11:2013, 3.18, modified — “meter” replaces “measuring instrument”]
3.2.11
metering conditions
conditions of the water, the volume of which is to be measured, at the point of measurement
EXAMPLE Water temperature, water pressure.
3.2.12
first element of an indicating device
element which, in an indicating device comprising several elements, carries the graduated scale with the
verification scale interval
3.2.13
verification scale interval
lowest value scale division of the first element of an indicating device
3.2.14
resolution of a displaying device
smallest difference between displayed indications that can be meaningfully distinguished
[SOURCE: ISO/IEC Guide 99:2007|OIML V 2-200:2012 (VIM), 4.15]
Note 1 to entry: For a digital indicating device, this is the change in the indication when the least significant digit
changes by one step.
3.3 Operating conditions
3.3.1
flow rate
Q
Q = dV/dt where V is actual volume and t is time taken for this vol
...
SLOVENSKI STANDARD
oSIST prEN ISO 4064-1:2011
01-julij-2011
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Water meters intended for the metering of cold potable water and hot water - Part 1:
Metrological and technical requirements (ISO/DIS 4064-1:2011)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 1:
Metrologische und technische Anforderungen (ISO/DIS 4064-1:2011)
Compteurs d'eau potable froide et d'eau chaude - Partie 1: Exigences métrologiques et
techniques (ISO/DIS 4064-1:2011)
Ta slovenski standard je istoveten z: prEN ISO 4064-1
ICS:
91.140.60 Sistemi za oskrbo z vodo Water supply systems
oSIST prEN ISO 4064-1:2011 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 4064-1:2011
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oSIST prEN ISO 4064-1:2011
EUROPEAN STANDARD
DRAFT
prEN ISO 4064-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2011
ICS 91.140.60 Will supersede EN 14154-1:2005+A2:2011, EN 14154-
2:2005+A2:2011, EN 14154-3:2005+A2:2011
English Version
Water meters intended for the metering of cold potable water
and hot water - Part 1: Metrological and technical requirements
(ISO/DIS 4064-1:2011)
Compteurs d'eau potable froide et d'eau chaude - Partie 1: Wasserzähler zum Messen von kaltem Trinkwasser und
Exigences métrologiques et techniques (ISO/DIS 4064- heißem Wasser - Teil 1: Metrologische und technische
1:2011) Anforderungen (ISO/DIS 4064-1:2011)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 92.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
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 Ref. No. prEN ISO 4064-1:2011: E
worldwide for CEN national Members.
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oSIST prEN ISO 4064-1:2011
prEN ISO 4064-1:2011 (E)
Contents Page
Foreword .3
2
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oSIST prEN ISO 4064-1:2011
prEN ISO 4064-1:2011 (E)
Foreword
This document (prEN ISO 4064-1:2011) has been prepared by Technical Committee ISO/TC 30
"Measurement of fluid flow in closed conduits" in collaboration with Technical Committee CEN/TC 92 “Water
meters” the secretariat of which is held by SNV.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN 14154-1:2005+A2:2011, EN 14154-2:2005+A2:2011,
EN 14154-3:2005+A2:2011.
Endorsement notice
The text of ISO/DIS 4064-1:2011 has been approved by CEN as a prEN ISO 4064-1:2011 without any
modification.
3
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oSIST prEN ISO 4064-1:2011
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oSIST prEN ISO 4064-1:2011
DRAFT INTERNATIONAL STANDARD ISO/DIS 4064-1
ISO/TC 30/SC 7 Secretariat: BSI
Voting begins on Voting terminates on
2011-05-12 2011-10-12
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Water meters intended for the metering of cold potable water
and hot water —
Part 1:
Metrological and technical requirements
Compteurs d'eau potable froide et d'eau chaude —
Partie 1: Exigences métrologiques et techniques
[Revision of third edition (ISO 4064-1:2005)]
ICS 91.140.60
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
© International Organization for Standardization, 2011
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.
ii © ISO 2011 – All rights reserved
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
Contents Page
Foreword .iv
1 Scope.5
2 Normative references.5
3 Terminology .5
3.1 Water meter and its constituents.6
3.2 Metrological characteristics.9
3.3 Operating conditions .10
3.4 Test conditions .12
3.5 Electronic and electrical equipment.13
4 Metrological requirements.14
4.1 Values of Q , Q , Q and Q .14
1 2 3 4
4.2 Accuracy class and maximum permissible error .15
4.3 Requirements for meters and ancillary devices .17
5 Water meters equipped with electronic devices .18
5.1 General requirements .18
5.2 Power supply .19
6 Technical requirements .20
6.1 Materials and construction of water meters.20
6.2 Adjustment and correction.20
6.3 Installation conditions .20
6.4 Rated operating conditions.22
6.5 Pressure loss .22
6.6 Marks and inscriptions .23
6.7 Indicating device .25
6.8 Protection devices.28
7 Metrological controls .28
7.1 Reference conditions .28
7.2 Type approval .29
7.3 Initial verification .34
Annex A (normative) Performance tests for water meters with electronic devices .36
A.1 General .36
A.2 Environmental classification (see [3]).36
A.3 Electromagnetic environments.36
A.4 Type approval of a calculator.36
A.5 Performance tests .37
Annex B (normative) Checking facilities .42
B.1 Action of checking facilities.42
B.2 Checking facilities for the measurement transducer .42
B.3 Checking facilities for the calculator.43
B.4 Checking facility for the indicating device .44
B.5 Checking facilities for ancillary devices .45
B.6 Checking facilities for the associated measuring instruments.45
Annex C (informative) Subsequent verification.46
Bibliography.47
© ISO 2011 – All rights reserved iii
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 4064-1 was prepared jointly by Technical Committee ISO/TC 30, Measurement of fluid flow in closed
conduits, Subcommittee SC 7, Volume methods including water meters and OIML Technical Subcommittee
TC 8/SC 5 Water meters.
This fourth edition cancels and partially replaces the third edition (ISO 4064-1:2005), which has been
technically revised. Some provisions of the third edition are addressed in the new Part 4.
This edition of ISO 4064-1 is identical with the corresponding edition of OIML R 49-1, which has been issued
concurrently.
ISO 4064 consists of the following parts, under the general title Water meters intended for the metering of cold
potable water and hot water:
Part 1: Specification of metrological and technical requirements
Part 2: Specification of test methods
Part 3: Specification of test report format
Part 4: Specification of non-metrological requirements not covered in Part 1
Part 5: Specification of installation requirements
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oSIST prEN ISO 4064-1:2011
DRAFT INTERNATIONAL STANDARD ISO/DIS 4064-1
Water meters intended for the metering of cold potable water
and hot water —
Part 1:
Metrological and technical requirements
1 Scope
1.1 This Part of ISO 4064/OIML R 49 applies to water meters used to meter the volume of cold potable
water and hot water flowing through a fully charged, closed conduit. These water meters shall incorporate
devices which indicate the integrated volume.
1.2 This Part of ISO 4064/OIML R 49 sets out the conditions with which the water meters shall comply to
meet the requirements of the Services of Legal Metrology in countries where these instruments are subject to
State controls.
1.3 This Part of ISO 4064/OIML R 49 also applies to water meters based on electrical or electronic
principles, and to water meters based on mechanical principles incorporating electronic devices, used to
measure the volume flow of hot water and cold potable water. It also applies to electronic ancillary devices.
Ancillary devices are optional. However, national or regional regulations may make some ancillary devices
mandatory in relation to the utilization of the water meter.
1.4 In addition to the requirements set out in this Part, the methods of examination and testing are included
in Part 2, a test report format is given in Part 3, and there are additional technical requirements in Part 4 and
installation requirements in Part 5.
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.
ISO 4064-2:201x, Water meters intended for the metering of cold potable water and hot water — Part 2: Test
methods [≡OIML R 49-2:201x]
3 Terminology
The terminology used in this Part of ISO 4064/OIML R 49 conforms to the International Vocabulary of
Metrology – Basic and General Concepts and Associated Terms (VIM) [1], the International Vocabulary of
Terms in Legal Metrology (VIML) [2] and OIML International Document D 11. For clarification, some terms
defined in [1-3] have been repeated here, replacing the term “measuring instrument” by the term “meter”.
For the purposes of this Part of ISO 4064/OIML R 49 the following definitions shall apply.
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
3.1 Water meter and its constituents
3.1.1
water meter
instrument intended to measure continuously, memorize and display the volume of water passing through the
measurement transducer at metering conditions
NOTE 1 A water 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.
NOTE 2 A water meter may be a combination meter (see 3.1.16).
NOTE 3 In this Part of ISO 4064/OIML R 49 a water meter is also referred to as a “meter”.
3.1.2
measurement transducer
part of the meter that transforms the flowrate or volume of water to be measured into signals which are
passed to the calculator and includes the sensor
NOTE The measurement transducer may function autonomously or use an external power source and may be based
on a mechanical, electrical or electronic principle.
3.1.3
sensor
element of a measuring system that is directly affected by a phenomenon, body or substance carrying a
quantity to be measured
[VIM:2007, 3.8]
NOTE For a water meter, the sensor may be a disc, piston, wheel, turbine element, electromagnetic coil or other
element. It senses the flowrate or volume of water passing through the meter and is referred to as flow sensor or volume
sensor.
3.1.4
calculator
part of the meter that transforms the output signals from the measurement transducer(s) and, possibly, from
associated measuring instruments and, if appropriate, stores the results in memory until they are used
NOTE The calculator may be capable of communicating both ways with ancillary devices.
3.1.5
indicating device
part of the meter that provides an indication corresponding to the volume of water passing through the meter
NOTE For the definition of the term “indication”, see VIM:2007, 4.1.
3.1.6
adjustment device
part of the meter that allows an adjustment of the meter such that the error curve of the meter is generally
shifted parallel to itself to fit in the envelope of the maximum permissible errors
NOTE For the definition of the term “adjustment”, see VIM:2007, 3.11.
3.1.7
correction device
device connected to or incorporated in the meter for automatic correction of the volume of water at metering
conditions, by taking into account the flowrate and/or the characteristics of the water to be measured and the
pre-established calibration curves
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
NOTE 1 The characteristics of the water (such as: temperature and pressure) may either be measured using associated
measuring instruments, or be stored in a memory in the instrument.
NOTE 2 For the definition of the term “correction”, see VIM:2007, 2.53.
3.1.8
ancillary device
device intended to perform a specific function, directly involved in elaborating, transmitting or displaying
measured values
NOTE 1 For the definition of “measured value”, see VIM:2007, 2.10.
NOTE 2 The main ancillary devices are:
a) zero setting device;
b) price indicating device;
c) repeating indicating device;
d) printing device;
e) memory device;
f) tariff control device;
g) pre-setting device;
h) self service device;
i) flow sensor movement detector (for detecting movement of the flow sensor before this is clearly visible on the indicating
device); and
j) remote reading device (which may be incorporated permanently or added temporarily).
NOTE 3 Depending on national legislation, ancillary devices may, or may not be, subject to legal metrological control.
3.1.9
tariff control device
device that allocates measured values into different registers depending on tariff or other criteria, each register
having the possibility to be read individually
3.1.10
pre-setting device
device that permits the selection of the quantity of water to be measured and which automatically stops the
flow of water after the selected quantity has been measured
3.1.11
associated measuring instrument
instrument connected to the calculator or the correction device for measuring a quantity, characteristic of
water, with a view to making a correction and/or a conversion
3.1.12
meter for two constant partners
meter that is permanently installed and only used for deliveries from one supplier to one customer
3.1.13
in-line meter
type of meter that is fitted into a closed conduit by means of the meter end connections provided
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
NOTE The end connections may be flanged or threaded.
3.1.14
complete meter
meter whose measurement transducer, calculator and indicating device are not separable
3.1.15
combined meter
meter whose measurement transducer, calculator and indicating device are separable.
3.1.16
combination meter
meter comprising one large meter, one small 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
the large meter, or both
NOTE Meter reading is obtained from two independent totalizers or one totalizer, which adds up the values from both
water meters.
3.1.17
equipment under test
EUT
complete meter, sub-assembly or ancillary device that is subjected to a test
3.1.18
concentric meter
type of meter that is fitted into a closed conduit by means of a manifold
NOTE The inlet and outlet passages of the meter and the manifold, at the interface between them, are coaxial.
3.1.19
(concentric meter) manifold
pipe fitting, specific to the connection of a concentric meter
3.1.20
cartridge meter
type of meter that is 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 Part 4 of this standard.
3.1.21
cartridge meter connection interface
pipe fitting specific to the connection of an axial or concentric cartridge meter
3.1.22
meter with exchangeable metrological unit
3
meter with Q ≥ 16 m /h, comprising a connection interface and an exchangeable measuring unit from the
3
same type approval, i.e. from the same manufacturer as a matter of principle
3.1.23
exchangeable metrological unit
self-contained unit comprising a measurement transducer and either an indicating device or a calculator and
indicating device
3.1.24
connection interface for meters with exchangeable metrological units
pipe fitting specific to the connection of exchangeable metrological units
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
3.2 Metrological characteristics
3.2.1
actual volume
V
a
total volume of water passing through the meter, disregarding the time taken
NOTE 1 This is the measurand.
NOTE 2 The actual volume is calculated from a reference volume as determined by a suitable measurement standard,
taking into account differences in metering conditions, as appropriate.
3.2.2
indicated volume
V
i
volume of water indicated by the meter, corresponding to the actual volume
3.2.3
primary indication
indication which is subject to legal metrological control
NOTE An indication may be a displayed, printed or memorized value.
3.2.4
error
measured quantity value minus a reference quantity value
[VIM:2007, 2.16]
NOTE 1 For the application of this Part of ISO 4064/OIML R 49 the indicated volume is considered as the measured
quantity value and the actual volume as the reference quantity value. The difference between indicated volume and actual
volume is referred to as: error (of indication).
NOTE 2 In this Part of ISO 4064/OIML R 49 the error (of indication) is generally expressed as a percentage, and is
equal to
V −V
i a
×100 %
V
a
3.2.5
maximum permissible error (of indication)
MPE
extreme value of error (of indication) permitted by this Part of ISO 4064/OIML R 49
3.2.6
intrinsic error
error of a meter determined under reference conditions
[OIML D 11:2004, 3.7]
3.2.7
initial intrinsic error
intrinsic error of a meter as determined prior to performance tests and durability evaluations
[OIML D 11:2004, 3.8]
3.2.8
fault
difference between the error (of indication) and the intrinsic error of a meter
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
[OIML D 11:2004, 3.9]
3.2.9
significant fault
fault greater than the value specified in this Part of ISO 4064/OIML R 49
[OIML D 11:2004, 3.10]
NOTE See 4.1.2.
3.2.10
durability
ability of a meter to maintain its performance characteristics over a period of use
[OIML D 11:2004, 3.17]
3.2.11
metering conditions
conditions of the water, the volume of which is to be measured, at the point of measurement
NOTE Examples: temperature and pressure of the water.
3.2.12
first element of an indicating device
element which, in an indicating device comprising several elements, carries the graduated scale with the
verification scale interval
3.2.13
verification scale interval
lowest value scale division of the first element of an indicating device
3.2.14
resolution of a displaying device
smallest difference between displayed indications that can be meaningfully distinguished
[VIM:2007, 4.15]
NOTE For a digital indicating device, this is the change in the indication when the least significant digit changes by
one step.
3.3 Operating conditions
3.3.1
flowrate
Q
quotient of the actual volume and the time taken for this volume to pass through the meter
3.3.2
permanent flowrate
Q
3
highest flowrate within the rated operating conditions at which the meter is to operate in a satisfactory manner
within the maximum permissible errors
3
NOTE In this Part of ISO 4064/OIML R 49, flowrate is expressed in m /h.
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oSIST prEN ISO 4064-1:2011
ISO/DIS 4064-1
3.3.3
overload flowrate
Q
4
highest flowrate at which the meter is to operate for a short period of time within the maximum permissible
errors, whilst maintaining its metrological performance when it is subsequently operating within the rated
operating conditions
3.3.4
transitional flowrate
Q
2
flowrate between the the permanent flowrate and the minimum flowrate that divides the flow
...
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