DIN EN 1434-4-2016 Heat meters - Part 4 Pattern approval tests German version EN 1434-4 2015《量热计 第4部分 样品验收试验 德文版本EN 1434-4-2015》.pdf

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1、February 2016 English price group 22No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 17.200.10!%LS“2414804www.din.de

2、DIN EN 1434-4Heat meters Part 4: Pattern approval tests;English version EN 1434-4:2015,English translation of DIN EN 1434-4:2016-02Wrmezhler Teil 4: Prfungen fr die Bauartzulassung;Englische Fassung EN 1434-4:2015,Englische bersetzung von DIN EN 1434-4:2016-02Compteurs dnergie thermique Partie 4: Es

3、sais en vue de lapprobation de modle;Version anglaise EN 1434-4:2015,Traduction anglaise de DIN EN 1434-4:2016-02SupersedesDIN EN 1434-4:2007-05www.beuth.deDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.Document comprises 56 pages

4、02.16 DIN EN 1434-4:2016-02 2 A comma is used as the decimal marker. National foreword This document (EN 1434-4:2015) has been prepared by Technical Committee CEN/TC 176 “Heat meters” (Secretariat: SIS, Sweden). The responsible German body involved in its preparation was DIN-Normenausschuss Heiz- un

5、d Raumluft-technik (DIN Standards Committee Heating and Ventilation Technology), Working Committee NA 041-03-05 AA Wrmezhler (SpA zu CEN/TC 176). Amendments This standard differs from DIN EN 1434-4:2007-05 as follows: a) metrological requirements for smart metering applications have been added; b) a

6、dditional functionalities for smart metering applications have been included; c) cooling meters have been included; d) influences of sensors have been added; e) tests for cooling applications and for fast response meters have been added; f) a test for additional functionalities for smart metering ap

7、plications, e.g. internal clock, external digital signal, absolute temperature has been included; g) a calculator with single temperature sensor has been added; h) a test for communication interfaces, an endurance test for flow sensors and an accelerated durability test have been included. Previous

8、editions DIN EN 1434-4: 1997-04, 2003-02, 2007-05 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1434-4 November 2015 ICS 17.200.10 Supersedes EN 1434-4:2007English Version Heat meters - Part 4: Pattern approval tests Compteurs dnergie thermique - Partie 4: Essais en vue de lapprobation de mod

9、le Wrmezhler - Teil 4: Prfungen fr die Bauartzulassung This European Standard was approved by CEN on 5 September 2015. 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

10、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 lang

11、uage 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, Denmar

12、k, 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 F

13、OR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1434-4:2015 EEN 1434-4:2015 (E)

14、2 Contents Page European foreword . 4 1 Scope 6 2 Normative references 6 3 Terms and definitions . 7 4 General 7 5 Requirements . 7 6 Specification of operating conditions 7 6.1 Rated operating conditions . 7 6.2 Reference conditions . 7 6.3 Reference values for the measurand, RVM 8 7 Tests and meas

15、urements . 8 7.1 General 8 7.2 Test programme 9 7.3 Uncertainty of test equipment and influences of EUT 11 7.4 Performance tests 11 7.5 Dry heat . 16 7.6 Cold 17 7.7 Static deviations in supply voltage 18 7.8 Durability test 19 7.9 Damp heat . 22 7.10 Short time mains voltage reduction 24 7.11 Elect

16、rical transients 24 7.12 Electromagnetic field 26 7.13 Electromagnetic field specifically caused by digital radio equipment . 27 7.14 Radio frequency amplitude modulated . 28 7.15 Electrostatic discharge . 30 7.16 Static magnetic field (fraud protection) 30 7.17 Mains frequency magnetic field 31 7.1

17、8 Internal pressure . 31 7.19 Pressure loss 31 7.20 Electromagnetic emission . 32 7.21 24 h interruption in the mains power supply voltage 32 7.22 Flow disturbances 33 7.23 Vibration/mechanical shock 33 8 Documentation 34 Annex A (informative) Testing procedure for temperature sensor pairs with pock

18、ets and without pockets 35 A.1 Test set-up 35 A.2 Test sequence 37 A.3 Calculations 37 Annex B (informative) Checklist for type approvals of heat meters according to EN 1434 . 38 DIN EN 1434-4:2016-02 EN 1434-4:2015 (E) 3 Annex C (informative) Criteria for a fully developed flow profile . 52 Annex Z

19、A (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2004/22/EC, MID 53 Bibliography . 54 DIN EN 1434-4:2016-02 EN 1434-4:2015 (E) 4 European foreword This document (EN 1434-4:2015) has been prepared by Technical Committee CEN/TC 176 “Heat meters

20、”, the secretariat of which is held by SIS. 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 May 2016, and conflicting national standards shall be withdrawn at the latest by May 2016. Attention is

21、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 1434-4:2007. This document has been prepared under a mandate given to C

22、EN 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. EN 1434, Heat meters consists of the following parts: Part 1: Ge

23、neral requirements Part 2: Constructional requirements Part 3: Data exchange and interfaces1) Part 4: Pattern approval tests Part 5: Initial verification tests Part 6: Installation, commissioning, operational monitoring and maintenance In comparison to EN 1434-4:2007, the following changes have been

24、 made: metrological requirements for smart metering applications are added; additional functionalities for smart metering applications are added; cooling meters are added; influences of sensors are added; tests for cooling applications and for fast response meters are added; test for additional func

25、tionalities for smart metering applications, e.g. internal clock, external digital signal, absolute temperature are added; calculator with single temperature sensor are added; 1) EN 1434-3 is maintained by CEN/TC 294. DIN EN 1434-4:2016-02 EN 1434-4:2015 (E) 5 test for communication interfaces, endu

26、rance test for flow sensors and accelerated durability test are added; electromagnetic field caused by digital radio equipment; static magnetic field; test procedure for temperature sensor pairs with pockets and without pockets. According to the CEN/CENELEC Internal Regulations, the national standar

27、ds 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, Luxe

28、mbourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DINEN 1434-4:2016-02EN 1434-4:2015 (E) 6 1 Scope This European Standard specifies pattern approval tests for heat meters. Heat meters are instruments intended

29、 for measuring the energy which in a heat-exchange circuit is absorbed (cooling) or given up (heating) by a liquid called the heat-conveying liquid. The heat meter indicates the quantity of heat in legal units. Electrical safety requirements are not covered by this European Standard. Pressure safety

30、 requirements are not covered by this European Standard. Surface mounted temperature sensors are not covered by this European Standard. This standard covers meters for closed systems only, where the differential pressure over the thermal load is limited. 2 Normative references The following document

31、s, 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. EN 1434-1:2015, Heat meters P

32、art 1: General requirements EN 55022, Information technology equipment Radio disturbance characteristics Limits and methods of measurement (CISPR 22:2008) EN 60068-2-1, Environmental testing Part 2-1: Tests - Test A: Cold (IEC 60068-2-1) EN 60068-2-2, Environmental testing Part 2-2: Tests - Test B:

33、Dry heat (IEC 60068-2-2) EN 60068-2-30, Environmental testing Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle) (IEC 60068-2-30) EN 60751:2008, Industrial platinum resistance thermometers and platinum temperature sensors (IEC 60751:2008) EN 61000-4-2, Electromagnetic compatibility (E

34、MC) Part 4-2: Testing and measurement techniques Electrostatic discharge immunity test (IEC 61000-4-2) EN 61000-4-3, Electromagnetic compatibility (EMC) Part 4-3: Testing and measurement techniques Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3) EN 61000-4-4, Electroma

35、gnetic compatibility (EMC) Part 4-4: Testing and measurement techniques Electrical fast transient/burst immunity test (IEC 61000-4-4) EN 61000-4-5, Electromagnetic compatibility (EMC) Part 4-5: Testing and measurement techniques Section 5: Surge immunity test (IEC 61000-4-5) (IEC 61000-4-5) EN 61000

36、-4-6:2014, Electromagnetic compatibility (EMC) Part 4-6: Testing and measurement techniques Immunity to conducted disturbances, induced by radio-frequency fields (IEC 61000-4-6:2013) EN 61000-4-8, Electromagnetic compatibility (EMC) Part 4-8: Testing and measurement techniques Power frequency magnet

37、ic field immunity test (IEC 61000-4-8) DINEN 1434-4:2016-02EN 1434-4:2015 (E) 7 EN 61000-4-11, Electromagnetic compatibility (EMC) Part 4-11: Testing and measurement techniques Voltage dips, short interruptions and voltage variations immunity tests (IEC 61000-4-11) EN ISO 4064-2, Water meters for co

38、ld potable water and hot water Part 2: Test methods (ISO 4064-2) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1434-1:2015 apply. 4 General The procedure shall ascertain that the pattern conforms to the metrological requirements of this European Sta

39、ndard. In addition to the checking of the documentation (Clause 7) and the comparison of the pattern with the metrological requirements of this European Standard, the tests in Clause 6 shall be performed. It is recommended to use a checklist as in Annex B to report in a standardized way the result o

40、f the comparison between the patterns under approval with the essential requirements of this European Standard. 5 Requirements Under normal operating conditions, the error of heat meters or their sub-assemblies shall not exceed the maximum permissible error, MPE specified in EN 1434-1. When heat met

41、ers or their sub-assemblies are exposed to disturbances, significant faults shall not occur. 6 Specification of operating conditions 6.1 Rated operating conditions The rated operating conditions are those given in Table 1. Table 1 Rated operating conditions Environmental class A B C Ambient temperat

42、ure in C +5 to +55 25 to +55 +5 to +55 Relative humidity in % DN 200, 7.19 shall be carried out at min. For each meter model the following tests shall be carried out on one size only: 7.5, 7.6, 7.7, 7.9, 7.10, 7.11, 7.12, 7.13, 7.14, 7.15, 7.16, 7.17, 7.20, 7.21 and 7.23. Tests of additional energy

43、registers for smart metering functionalities: The accuracy of thermal energy accumulation into the additionally and independently energy registers shall be tested by energy performance tests according to 7.4. NOTE In applications of smart metering, one or both single sensors of the pair are used as

44、additional single sensor. Additional tests for control quantities, the internal clock, external digital signal, single temperature sensors, calculators and calculators with single sensors shall be done according to requirements in EN 1434-1:2015, 5.10. It shall be tested that the specific MPE accord

45、ing to EN 1434-1:2015, 5.10.5 for tolerance quantities, used for threshold activation of additional energy accumulations will be met. The absence of software-interaction between all energy registers shall be proved in accordance with the WELMEC Guide “7.2 Software”, respective latest edition. This s

46、hall be done for both directions of energy flow, in cases of delivered and absorbed energy (heat and cooling meter). Each additional register under test shall be activated by the corresponding control quantity. It shall be ascertained that the specific activated register content on display is corres

47、ponding to the changes of control quantity, as expected and by at least one totalizer energy increment. By metrological tests the accuracy of generating and processing, the accumulated energy values in dependency on the parameterisation of the corresponding control parameters shall be tested. By che

48、cking of the switch-on/off parameters, it shall be ascertained that the control quantity and the values thereof are indicated on display properly. The information on the display shall not deviate from the real measurement with respect to measurement conditions. 7.2 Test programme Samples of a heat m

49、eter, or its sub-assemblies, submitted for pattern approval, shall be subject to tests to verify their conformity with Clause 4. Unless otherwise stated, the tests shall be carried out at reference conditions and the samples shall be exposed to the influence factors or disturbances specified for the respective tests, as stated in Table 3. The test sequence and the number of items used shall be either a