BS EN 50379-2-2012 Specification for portable electrical apparatus designed to measure combustion flue gas parameters of heating appliances Performance requirements for apparatus u.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 50379-2:2012Specification for portableelectrical apparatus designedto measure combustion fluegas parameters of heatingappliances -Part 2: Performance requirements forappara

2、tus used in statutory inspections andassessmentBS EN 50379-2:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 50379-2:2012.It supersedes BS EN 50379-2:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee EXL/31/

3、1, Gas detectors.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Publishe

4、d by BSI StandardsLimited 2012ISBN 978 0 580 74637 6ICS 13.040.40; 91.140.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2012.Amendments issued since p

5、ublicationDate Text affectedBS EN 50379-2:2012EUROPEAN STANDARD EN 50379-2 NORME EUROPENNE EUROPISCHE NORM April 2012 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Av

6、enue Marnix 17, B - 1000 Brussels 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 50379-2:2012 E English version Specification for portable electrical apparatus designed to measure combustion flue gas parameters of heating ap

7、pliances - Part 2: Performance requirements for apparatus used in statutory inspections and assessment Spcification pour les appareils lectriques portatifs conus pour mesurer les paramtres des gaz de combustion dans les conduits dvacuation des appareils de chauffage - Partie 2: Prescriptions des car

8、actristiques des appareils utiliss au cours des inspections et valuations rglementaires Anforderungen an tragbare elektrische Gerte zur Messung von Verbrennungsparametern von Heizungsanlagen - Teil 2: Anforderungen an das Betriebsverhalten von Gerten fr den Einsatz bei gesetzlich geregelten Messunge

9、n und Beurteilungen This European Standard was approved by CENELEC on 2012-03-19. CENELEC 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

10、and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation unde

11、r the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Est

12、onia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. ICS 13.320 Supersedes EN 50379-2:2004BS EN 50379-2:2012EN

13、 50379-2:2012 2 Contents Foreword 3Introduction 41 Scope 52 Normative references . 53 Terms and definitions . 54 General requirements 55 Test methods and performance requirements . 65.1 General requirements for tests 65.2 Normal conditions for tests 65.3 Mechanical tests . 65.4 Electrical and softwa

14、re tests . 75.5 Tests with test gases 75.6 Tests with real flue gases . 85.7 Calculated values . 95.8 Temperature . 95.9 Pressure . 10Bibliography . 11BS EN 50379-2:2012 3 EN 50379-2:2012 Foreword This document (EN 50379-2:2012) has been prepared by CENELEC TC 216 “Gas detectors“. The following date

15、s are fixed: latest date by which this document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2013-03-19 latest date by which the national standards conflicting with this document have to be withdrawn (dow) 2015-03-19 This document s

16、upersedes EN 50379-2:2004. EN 50379-2:2012 includes the following significant technical changes with respect to EN 50379-2:2004: 5.5.7 considers calibration curves for sensors with nonlinear signal; 5.5.8 considers influence of pressure variations; 5.5.9 considers the influence of water vapour on th

17、e gas signal; 5.7.2 for calculated values was amended; 5.7.4 considers 15 min. average concentration for solid fuels; 5.9.1 was amended to cover measurement at the circular orifice. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.

18、CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. _ BS EN 50379-2:2012EN 50379-2:2012 4 Introduction This European Standard covers apparatus for measuring gas concentrations and other combustion parameters, as used in the installation and maintenance of

19、heating appliances. It forms a specification for portable electrical apparatus designed to measure combustion flue gas parameters of heating appliances, and includes the following parts under the generic title Specification for portable electrical apparatus designed to measure combustion flue gas pa

20、rameters of heating appliances: Part 1: General requirements and test methods; Part 2: Performance requirements for apparatus used in statutory inspections and assessments; Part 3: Performance requirements for apparatus used in non-statutory servicing of gas fired heating appliances. EN 50379-1 spec

21、ifies general requirements for the construction, testing and performance of portable spot reading apparatus designed to give an assessment of specific combustion flue gas parameters such as concentration of gaseous compounds, temperature and/or pressure to check the combustion performance of heating

22、 appliances for domestic residential and commercial applications using commercially available fuels. EN 50379-2 is for apparatus intended to be used for statutory measurement. In several European countries, legal requirements exist for the performance of heating appliances. Authorised inspectors use

23、 these apparatus to measure the flue gas parameters, in order to test compliance with national regulations. Due to the legal consequences resulting from the measurement there are strict requirements regarding the measuring uncertainty of these apparatus. Therefore EN 50379-2 includes maximum values

24、for measuring uncertainty of the apparatus. Tests with real flue gases form a key part of the verification of the performance of the apparatus for statutory measurement. The measuring uncertainty has to be justified by internationally accepted methods over the whole measuring range. EN 50379-3 is fo

25、r apparatus intended to be used for non-statutory applications. There are reduced performance requirements, because the apparatus are designed to decide if maintenance for a gas fired appliance is required, and for adjusting the appliance during maintenance. There will be no determination of the mea

26、suring uncertainty for the apparatus. BS EN 50379-2:2012 5 EN 50379-2:2012 1 Scope This European Standard covers apparatus designed to measure flue gas parameters of heating appliances for domestic residential and commercial applications using commercially available fuels in compliance with metrolog

27、ical specification. The apparatus may consist of different functional modules that may be tested separately for complying with this standard and will be combined in different ways according to the different applications. Part 1 of EN 50379 specifies the general requirements and is supplemented by th

28、e requirements in EN 50379-2 and/or EN 50379-3. This European Standard specifies the performance requirements of portable spot reading apparatus designed to give a measurement of specific combustion flue gas parameters such as concentration of gaseous compounds, temperature and/or pressure to be use

29、d for testing the compliance with national regulations for the above mentioned appliances. This European Standard excludes apparatus for continuous emission, safety monitoring and control, and use in vessels with an international load line. NOTE 1 When this apparatus is used in industrial premises,

30、national regulations should be observed. NOTE 2 Apparatus may contain functional modules that are not covered by this standard e.g. measurement of smoke spot number (see EN 267:2009+A1:2011, Annex A) and/or measurement of indoor ambient air (see EN 50543). 2 Normative references The following docume

31、nts, 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 50270:2006, Electromagne

32、tic compatibility Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen EN 50271:2010, Electrical apparatus for the detection and measurement of combustible gases, toxic gases or oxygen Requirements and tests for apparatus using software and/or digital te

33、chnologies EN 50379-1:2012, Specification for portable electrical apparatus designed to measure combustion flue gas parameters of heating appliances Part 1: General requirements and test methods EN 60335-1:2002, Household and similar electrical appliances Safety Part 1: General requirements (IEC 603

34、35-1:2001, mod.) EN 60529:1991, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 50379-1:2012 apply. 4 General requirements Unless otherwise stated, the general requirements of EN

35、50379-1:2012 are applicable and shall be checked by visual inspection. BS EN 50379-2:2012EN 50379-2:2012 6 5 Test methods and performance requirements 5.1 General requirements for tests 5.1.1 General The requirements specified in EN 50379-1:2012, 5.1.1 are applicable. 5.1.2 Samples and sequence of t

36、ests For the purposes of type testing, for each sample the first test to be carried out shall be the initial performance test (5.5.3). One sample of the apparatus shall be subjected to the relevant tests given in 5.3 and 5.4. The mechanical tests of 5.3 shall be carried out before the tests of 5.4 t

37、o 5.9. After finishing the mechanical tests of 5.3 the initial performance test shall (5.5.3) be repeated at room temperature. NOTE Due to the use of different calibration gases at pre-calibration by the manufacturer and type testing according to this standard the instruments may show a discrepancy.

38、 In this case, it is permissible to make minor adjustments to the apparatus during the initial performance test (5.5.3). The EMC testing according to 5.4.1 may be carried out independently from all other tests of the standard. A further sample, or the same if desired, may be used for the tests in 5.

39、5, 5.7, 5.8 and 5.9. Two samples shall be used for the tests in 5.6, of which one may be the sample used for the earlier tests. At least two specimens are required for 5.6, to determine the standard deviation in performance between samples, in order to specify the measurement uncertainty and the rep

40、roducibility of the apparatus compared to reference analytical equipment, in accordance with EN 60359 and the international standard for mathematical procedures ISO/IEC Guide 98-3 (GUM). The tests within 5.3, 5.4 and 5.5 may be performed in any sequence, but 5.6 to 5.9 shall be performed in the sequ

41、ence listed in this standard, where relevant. For calculating the uncertainty in measurement during type testing, it may be necessary to obtain readings of measured values at a higher resolution than that displayed by the apparatus. If necessary, the manufacturer shall provide the means of obtaining

42、 such signals by modification of the apparatus used for type testing. 5.1.3 Preparation of samples The requirements specified in EN 50379-1:2012, 5.1.3 are applicable. 5.1.4 Test facility The requirements specified in EN 50379-1:2012, 5.1.4 are applicable. 5.2 Normal conditions for tests The require

43、ments specified in EN 50379-1:2012, 5.2 are applicable. 5.3 Mechanical tests 5.3.1 General The requirements specified in EN 50379-1:2012, 5.3.1 are applicable. 5.3.2 Degree of protection The enclosure of the apparatus shall provide at least an IP40 degree of protection when all probes etc. are conne

44、cted, in accordance with EN 60529:1991, Clauses 12 and 14. If an apparatus is designed for outdoor use it shall provide at least an IP42 degree of protection when connected similarly. BS EN 50379-2:2012 7 EN 50379-2:2012 5.3.3 Impact strength The apparatus shall meet the requirements specified in EN

45、 60335-1:2002, Clause 21, as modified by EN 50379-1:2012, 5.3.3. The function of the apparatus shall not be affected after the test. Visible damage to parts of the housing are acceptable, providing the functionality remains unimpaired. 5.3.4 Vibration The function of the apparatus shall not be affec

46、ted after the test. Visible damage to parts of the housing are acceptable, providing the functionality remains unimpaired. 5.3.5 Drop The function of the apparatus shall not be affected after the test. Visible damage to parts of the housing are acceptable, providing the functionality remains unimpai

47、red. 5.3.6 Flow indicator (if fitted) If an apparatus is fitted with an integral flow proving device, after the simulation of the blockage function of the integral flow indicator shall be checked by visual inspection. 5.3.7 Dust filter and water trap After measuring times of 1 h the dust filter shal

48、l still be usable, as specified in the manufacturers instruction manual, and the maximum level of the condensate separator shall not be reached. The flow of the apparatus shall continuously be above the minimum flow, specified by the manufacturer, within the 1 h testing period. 5.4 Electrical and so

49、ftware tests 5.4.1 Electromagnetic Compatibility (EMC) The apparatus, including the probe and any interconnecting wiring and tubing, shall meet the requirements for electromagnetic compatibility in accordance with EN 50270 for Type 1 (domestic) and shall meet the requirements of EN 50270:2006, Table 5. 5.4.2 Supply voltage variations (not applicable to battery powered apparatus) The apparatus shall meet the requirements for accuracy listed in EN