EN 12405-1:2018

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Plinomeri - Korektorji - 1. del: Volumska korekcijaGaszähler - Umwerter - Teil 1: VolumenumwertungCompteurs de gaz - Dispositifs de conversion - Partie 1: Conversion de volumeGas meters - Conversion devices - Part 1: Volume conversion91.140.40Sistemi za oskrbo s plinomGas supply systemsICS:Ta slovenski standard je istoveten z:EN 12405-1:2018SIST EN 12405-1:2018en,fr,de01-december-2018SIST EN 12405-1:2018SLOVENSKI
STANDARDSIST EN 12405-1:2005+A2:20101DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12405-1
October
t r s z ICS
{ sä s v rä v r Supersedes EN
s t v r wæ sã t r r w ªA tã t r s rEnglish Version
Gas meters æ Conversion devices æ Part
sã Volume conversion Compteurs de gaz æ Dispositifs de conversion æ Partie
sã Conversion de volume
Gaszähler æ Umwerter æ Teil
sã Volumenumwertung This European Standard was approved by CEN on
t June
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t v r wæ sã t r s z ESIST EN 12405-1:2018

Type test . 38 A.1 General conditions . 38 A.1.1 General . 38 A.1.2 Additional conditions specific to gas volume conversion devices type 1. 38 A.1.3 Additional conditions specific to gas-volume conversion devices type 2 . 38 A.1.4 Test procedures . 39 A.1.5 Verification of the construction requirements . 40 A.2 Accuracy tests under reference conditions . 40 A.2.1 Objective . 40 A.2.2 Reference to documents . 41 A.2.3 Procedure . 41 A.2.4 Acceptance criteria . 41 A.3 Effect of ambient temperature . 41 A.3.1 Objective . 41 A.3.2 Reference to documents . 41 A.3.3 Procedure . 41 A.3.4 Acceptance criteria . 41 A.4 Effect of damp heat, steady-state test . 41 A.4.1 Objective . 41 A.4.2 Reference to documents . 41 A.4.3 Procedure . 42 A.4.4 Acceptance criteria . 42 A.5 Effect of damp heat, cyclic test . 42 A.5.1 Objective . 42 A.5.2 Reference to documents . 42 A.5.3 Procedure . 42 A.5.4 Acceptance criteria . 42 A.6 Electrical power variation . 43 A.6.1 Objective . 43 A.6.2 Reference to documents . 43 A.6.3 Procedure . 43 SIST EN 12405-1:2018

Pressure transducers . 51 B.1 Scope . 51 B.2 Rated operating conditions . 51 B.2.1 Specified measurement range for pressure . 51 B.2.2 Environmental class . 51 B.2.3 Power supply . 51 B.3 Construction requirements. 51 B.3.1 General . 51 B.3.2 Casings . 51 B.3.3 Indications . 51 B.4 Performances . 52 B.4.1 Reference conditions . 52 B.4.2 Rated operating conditions . 52 B.4.3 Maximum permissible errors . 52 B.4.4 Influence factors . 52 B.4.5 Disturbances. 52 B.4.6 Durability . 52 B.5 Tests of conformity . 53 B.5.1 Test conditions . 53 B.5.2 Tests . 53 B.5.3 Sample of pressure transducers required for testing . 53 B.6 Marking . 53 Annex C (normative)
Platinum resistance thermometer sensors . 54 C.1 Scope . 54 C.2 Operating rated conditions . 54 C.2.1 Specified measurement range for temperature . 54 C.2.2 Environmental class . 54 C.3 Construction requirements. 54 C.4 Performances . 54 C.5 Marking . 55 C.5.1 Required markings . 55 C.5.2 Verification mark . 55 C.6 Metrological verifications . 55 C.6.1 Type approval . 55 C.6.2 Initial verification . 56 C.7 Verification procedure . 56 SIST EN 12405-1:2018

Temperature transducers . 58 D.1 Scope . 58 D.2 Rated operating conditions . 58 D.2.1 Specified measurement range for temperature . 58 D.2.2 Environmental class . 58 D.2.3 Power supply . 58 D.3 Construction requirements . 58 D.3.1 General . 58 D.3.2 Casings . 58 D.3.3 Indications . 58 D.4 Performances . 59 D.4.1 Reference conditions . 59 D.4.2 Rated operating conditions . 59 D.4.3 Maximum permissible errors . 59 D.4.4 Influence factors . 59 D.4.5 Disturbances . 59 D.4.6 Durability . 59 D.5 Tests of conformity . 60 D.5.1 Test conditions . 60 D.5.2 Tests . 60 D.5.3 Sample of temperature transducers required for testing . 60 D.6 Marking . 60 Annex E (informative)
Model type test report for conversion devices . 61 E.1 General . 61 E.1.1 General remarks . 61 E.1.2 Number of pages . 61 E.1.3 Laboratory's identification . 61 E.1.4 Applicant . 61 E.1.5 Identification of device(s) submitted for testing . 61 E.2 Accuracy tests under reference conditions . 61 E.2.1 Ambient temperature during the test . 61 E.2.2 Test equipment used. 62 E.2.3 Test results . 62 E.3 Ambient temperature . 63 E.3.1 Effect of dry heat . 63 E.3.2 Effect of cold . 64 E.4 Effect of damp heat, steady-state test . 65 E.4.1 Ambient temperature during the test . 65 E.4.2 Test equipment used. 65 E.4.3 Test results . 66 E.5 Effect of damp heat, cyclic test . 67 E.5.1 Ambient temperature during the test . 67 E.5.2 Test equipment used. 67 E.5.3 Test results . 68 E.6 Electrical power variation . 68 E.6.1 AC power supply . 68 E.6.2 DC power supply or battery supply . 70 E.7 Short time power reductions .
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