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    DIN EN 12645-2015 Tyre pressure measuring instruments - Devices for inspection of pressure and or inflation deflation of tyres for motor vehicles - Metrology requirements and testi.pdf

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    DIN EN 12645-2015 Tyre pressure measuring instruments - Devices for inspection of pressure and or inflation deflation of tyres for motor vehicles - Metrology requirements and testi.pdf

    1、February 2015 Translation by DIN-Sprachendienst.English price group 16No 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).I

    2、CS 17.100; 43.180; 83.160.10!%7“2299120www.din.deDDIN EN 12645Tyre pressure measuring instruments Devices for inspection of pressure and/or inflation / deflation of tyres formotor vehicles Metrology, requirements and testing;English version EN 12645:2014,English translation of DIN EN 12645:2015-02Re

    3、ifendruckmessgerte Gerte zum Prfen des Druckes und/oder zum Fllen / Entleeren von Reifen anKraftfahrzeugen Messtechnik, Anforderungen und Prfungen;Englische Fassung EN 12645:2014,Englische bersetzung von DIN EN 12645:2015-02Instruments de mesure de la pression des pneumatiques Dispositifs de contrle

    4、 de la pression et/ou de gonflage / dgonflage des pneumatiquesdes vhicules motoriss Mtrologie, exigences et essais;Version anglaise EN 12645:2014,Traduction anglaise de DIN EN 12645:2015-02SupersedesDIN EN 12645:2014-11www.beuth.deDocument comprises 38 pagesIn case of doubt, the German-language orig

    5、inal shall be considered authoritative.02.15 DIN EN 12645:2015-02 2 National foreword This document (EN 12645:2014) has been prepared by Technical Committee CEN/TC 301 “Road vehicles” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the DIN-Normenausschuss Au

    6、tomobiltechnik (DIN Standards Committee Road Vehicle Engineering), Working Committee NA 052-01-03-32 AK Reifen-druckanzeigegert. Amendments This standard differs from DIN EN 12645:1998-11 as follows: a) requirements for tyre pressure measuring instruments with electronic sensors and display devices

    7、have been included; b) tests of tyre pressure measuring instruments with electronic sensors and display devices have been included; c) requirements for the accuracy of tyre pressure measuring instruments have been rendered more precise. Compared with DIN EN 12645:2014-11, the following corrections h

    8、ave been made to the German version only and therefore do not affect the English text: a) the German translation of the last paragraph in Subclause 7.7.2 has been harmonized with the English reference version: “Nach einer Stunde unter Referenztemperatur mssen die Prfungen nach 7.2 und 7.3 durchgefhr

    9、t werden. Das geprfte Reifendruckmessgert muss die Anforderungen nach 5.1, 5.2 und 5.3 erfllen.”; b) Subclause 7.8.15, Table 5, has been modified as follows: in the 1st column, 4th line, footnote “a” has been added; c) Table C.1, Annex C, has been modified as follows: missing numbers in line 7.6.1 h

    10、ave been added. Previous editions DIN EN 12645: 1998-11, 2014-11 A comma is used as the decimal marker. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12645 August 2014 ICS 17.100; 43.180; 83.160.10 Supersedes EN 12645:1998 English Version Tyre pressure measuring instruments Devices for inspec

    11、tion of pressure and/or inflation / deflation of tyres for motor vehicles Metrology, requirements and testing Instruments de mesure de la pression des pneumatiques Dispositifs de contrle de la pression et/ou de gonflage / dgonflage des pneumatiques des vhicules motoriss Mtrologie, exigences et essai

    12、s Reifendruckmessgerte Gerte zum Prfen des Druckes und/oder zum Fllen / Entleeren von Reifen an Kraftfahrzeugen Messtechnik, Anforderungen und Prfungen This European Standard was approved by CEN on 31 August 2013. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipul

    13、ate 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 St

    14、andard 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 n

    15、ational 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,

    16、Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any

    17、means reserved worldwide for CEN national Members. Ref. No. EN 12645:2014 E EN 12645:2014 (E) 2 Contents Page Foreword 4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Categories 8 5 Metrological requirements . 10 5.1 Maximum permissible errors . 10 5.2 Hysteresis error 10 5.3 Zero

    18、10 5.3.1 Return of the instruments indication to zero 10 5.3.2 Zero setting . 10 5.4 Units . 11 6 Technical requirements . 11 6.1 Construction 11 6.2 Analog indicating tyre pressure measuring instrument . 11 6.2.1 Scale angle 11 6.2.2 Scale interval . 11 6.2.3 Scale spacing 11 6.2.4 Index . 12 6.3 D

    19、igital indicating tyre pressure measuring instrument 12 6.3.1 Scale interval . 12 6.3.2 Readability . 12 6.4 Additional constructional requirements 12 6.4.1 Mechanical tyre pressure measuring instruments 12 6.4.2 Electronic tyre pressure measuring instrument 12 6.4.3 Electronic and mechanical tyre p

    20、ressure measuring instruments . 13 6.4.4 Preset device . 13 6.5 Operating conditions 13 6.5.1 Climatic requirements 13 6.5.2 Mechanical requirements . 14 6.5.3 Electromagnetic immunity requirements for electronic tyre pressure measuring instruments (with digital display and/or electronic sensor) 15

    21、6.5.4 Software requirements for electronic tyre pressure measuring instruments 16 6.5.5 Mounting position requirements . 17 6.5.6 Kind of pressure indication requirement . 17 7 Type approval testing to check for compliance with metrological and technical requirements . 17 7.1 General . 17 7.2 Determ

    22、ination of accuracy error . 18 7.3 Determination of hysteresis error . 18 7.4 Determination of return of instruments indication to zero 18 7.5 Determination of error after/during a disturbance or influence . 18 7.6 Climatic tests . 18 7.6.1 Determination of the MPE in the rated temperature in servic

    23、e 18 7.6.2 Rated storage temperature 19 7.6.3 Humidity . 19 DIN EN 12645:2015-02 7.6.4 Corrosion test 19 EN 12645:2014 (E) 3 7.7 Mechanical tests 19 7.7.1 Protection against ingress of water and foreign particles (degree of protection) . 19 7.7.2 Examination of the durability of the measuring instru

    24、ment . 20 7.7.3 Vibration (random) 20 7.7.4 Free fall . 21 7.8 Electromagnetic immunity 21 7.8.1 AC mains voltage variations 21 7.8.2 DC mains voltage variations 21 7.8.3 AC mains power 21 7.8.4 Bursts on AC and DC mains. 21 7.8.5 Electrostatic discharges . 21 7.8.6 Fast transients on signal and I/O

    25、 lines 22 7.8.7 Surges on signal and I/O lines . 22 7.8.8 DC mains power 22 7.8.9 Ripple on DC input power ports 22 7.8.10 Surges on AC and DC mains lines 22 7.8.11 Radiated radio-frequency electromagnetic fields 22 7.8.12 Conducted radio-frequency fields . 22 7.8.13 Voltage variations (if powered b

    26、y vehicle battery) 22 7.8.14 Electrical transient conduction along supply lines (if powered by vehicle battery) 23 7.8.15 Load dump (if powered by vehicle battery) 23 7.9 Software examination . 25 7.10 Mounting position . 26 7.11 Determination of pressure sensor kind of pressure test 26 8 Inscriptio

    27、ns and marking 26 8.1 Inscriptions 26 8.1.1 Obligatory inscriptions . 26 8.1.2 Optional inscriptions . 27 8.2 Verification marks and sealing 27 9 Metrological control 27 9.1 Type approval 27 9.2 Initial Verification . 27 9.3 Subsequent verification 27 9.4 In-service control . 28 Annex A (normative)

    28、Correspondence between requirements and tests 29 Annex B (normative) MPE graphics . 30 Annex C (informative) Examples of type approval test sequence for multiple samples 32 Annex D (informative) Recommended solutions for special test conditions 35 Bibliography 36 DIN EN 12645:2015-02 PageEN 12645:20

    29、14 (E) 4 Foreword This document (EN 12645:2014) has been prepared by Technical Committee CEN/TC 301 “Road vehicles”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at th

    30、e latest by February 2015, and conflicting national standards shall be withdrawn at the latest by February 2015. 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

    31、or all such patent rights. This document supersedes EN 12645:1998, and additionally to the tyre pressure mechanical measuring instruments, introduces new clauses for the electronic devices (requirements, test methods) and for the metrological control (during type approval, initial and subsequent ver

    32、ification, and in-service control). This document has been prepared under a mandate (M/457) given to CEN by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to

    33、 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, Ro

    34、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 12645:2015-02 EN 12645:2014 (E) 5 1 Scope This European Standard defines metrological and technical requirements and tests of tyre pressure measuring instruments. Tyre pressure measuring instruments (often r

    35、eferred to as Tyre Pressure Gauges, TPG) are for the inspection of pressure and/or inspection of inflation/deflation of tyres of motor vehicles. It establishes in the context of motor vehicles tyres, the minimum characteristics of the chain of measurement of tyre pressure measuring instruments inten

    36、ded to inspect or adjust the pressure of tyres inflated by air or nitrogen. These devices, classified in different categories, are hereinafter referred to by generic term, “tyre pressure measuring instruments”. This chain of measurement consists of all the elements between the tyre valve and the dis

    37、play device (connector, hose, control device, measurement components, reservoir, preset device etc.). They indicate the pressure difference (pe) between the air or the nitrogen in the tyre and the atmosphere. The field of application established above can be extended to other applications where no s

    38、pecific standard exists. Because of the influence of tyre pressure on road safety and energy efficiency, periodical verification of tyre pressure measuring instruments is strongly recommended. 2 Normative references The following documents, in whole or in part, are normatively referenced in this doc

    39、ument 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 837-1, Pressure gauges - Part 1: Bourdon tube pressure gauges - Dimensions, metrology, r

    40、equirements and testing EN 837-3, Pressure gauges - Part 3: Diaphragm and capsule pressure gauges - Dimensions, metrology, requirements and testing EN 60068-2-1, Environmental testing - Part 2-1: Tests - Test A: Cold EN 60068-2-2, Environmental testing - Part 2-2: Tests - Test B: Dry heat EN 60068-2

    41、-11, Environmental testing - Part 2: Tests - Test Ka: Salt mist EN 60068-2-30, Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle) EN 60068-2-32, Basic environmental testing procedures Part 2: Tests Test Ed: Free fall (IEC 60068-2-32) EN 60068-2-47, Environmenta

    42、l testing - Part 2-47: Tests - Mounting of specimens for vibration, impact and similar dynamic tests EN 60068-2-64, Environmental testing - Part 2-64: Tests - Test Fh: Vibration, broadband random and guidance DIN EN 12645:2015-02 EN 12645:2014 (E) 6 EN 60068-3-8, Environmental testing - Part 3-8: Su

    43、pporting documentation and guidance - Selecting amongst vibration tests EN 60529, Degrees of protection provided by enclosures (IP Code) EN 60654-2, Operating conditions for industrial-process measurement and control equipment - Part 2: Power EN 61000-4-1, Electromagnetic compatibility (EMC) - Part

    44、4-1: Testing and measurement techniques - Overview of IEC 61000-4 series EN 61000-4-2, Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test EN 61000-4-3, Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement tech

    45、niques - Radiated, radio-frequency, electromagnetic field immunity test EN 61000-4-4, Electromagnetic 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 a

    46、nd measurement techniques - Surge immunity test EN 61000-4-6, Electromagnetic compatibility (EMC) Part 4-6: Testing and measurement techniques Immunity to conducted disturbances, induced by radio-frequency fields (IEC 61000-4-6) EN 61000-4-11, Electromagnetic compatibility (EMC) - Part 4-11: Testing

    47、 and measurement techniques - Voltage dips, short interruptions and voltage variations immunity tests EN 61000-4-17, Electromagnetic compatibility (EMC) - Part 4-17: Testing and measurement techniques - Ripple on d.c. input power port immunity test EN 61000-4-29, Electromagnetic compatibility (EMC)

    48、- Part 4-29: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations on d.c. input power port immunity tests ISO 7637-2, Road vehicles Electrical disturbances from conduction and coupling Part 2: Electrical transient conduction along supply lines only ISO 16750-1, Road vehicles Environmental conditions and testing for electrical and electronic equipment Part 1: General ISO 16750-2, Road vehicles Environmental conditions and testing for electrical


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