SR EN 12405-1:2005

Gas meters - Conversion devices - Part 1: Volume conversion

This European Standard specifies the requirements and tests for the construction, performance, safety and conformity of gas volume electronic conversion devices associated to gas meters, used to measure volumes of fuel gases of the 1st and 2nd families according to EN 437. This European Standard is intended for type testing, the detailed relevant provisions of which are given in Annex A. Only three kinds of conversion are treated in this European Standard: - conversion as a function of temperature only (called T conversion); - conversion as a function of the pressure and of the temperature with constant compression factor (called PT conversion); - conversion as a function of the pressure, the temperature and taking into account the compression factor (called PTZ conversion). EN 12405-2 for energy conversion is in preparation. Gas-volume conversion devices consist of a calculator and a temperature transducer or a calculator, a temperature transducer and a pressure transducer locally installed. For application of this European Standard, a conversion device may be, as a choice of

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General information

Status : Withdrawn
Approval date : 12/15/2005
Publish date : 12/17/2005
Withdrawal date : 3/31/2011
Number of pages : 92
ICS : 91.140.40 Gas supply systems
Technical Committee : 109 - Measurement of fluid flow

Relations with other standards:

Replaces SR EN 12405:2004
Normative reference SR EN 61000-4-3:2003
Normative reference SR EN 61000-4-11:2005
Normative reference SR EN 60068-2-78:2004
Normative reference SR EN 55011:2001
Normative reference SR EN 60529:1995
Normative reference SR EN 60950-1:2002
Normative reference SR EN 60068-2-31:2001
Normative reference SR EN 50015:2003
Normative reference SR EN 60079-7:2004
Normative reference SR EN ISO 12213-3:2005
Normative reference SR EN 1776:2002
Normative reference SR EN 61000-4-6:2002
Normative reference SR EN 60068-2-2+A1+A2:1997
Normative reference SR EN 50039:2002
Normative reference SR EN 60079-1:2005
Normative reference SR EN 50020:2003
Normative reference SR EN 437:1997
Normative reference SR EN 60079-2:2005
Normative reference SR EN 60751:2002
Normative reference SR EN 60068-2-1+A1+A2:1996
Normative reference SR EN ISO 12213-2:2005
Normative reference SR EN 50017:2003
Normative reference SR EN 60079-0:2005
Normative reference SR EN 60068-2-30:2001
Normative reference SR EN 61000-4-2+A1:1999
Normative reference SR EN 61000-4-4:1999
Replaced by SR EN 12405-1+A2:2011
Amended by SR EN 12405-1:2005/A1:2007