Hivatkozási szám

MSZ EN 12405-1:2005

Dokumentumazonosító

138596

Cím

Gázmérők. Átszámító eszközök. 1. rész: Térfogat-átszámítás

Angol cím

Gas meters. Conversion devices. Part 1: Volume conversion

Alkalmazási terület

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 the manufacturer, considered as a complete instrument (Type 1) or made of separate elements (Type 2), according to the definitions given in 3.1.18.1 and 3.1.18.2. In this last case, the provisions concerning pressure transducers, temperature sensors and temperature transducers are given in Annexes B, C and D respectively. Any conversion device can provide an error curve correction for a gas meter. NOTE When rendering an account to an end user the readings from the conversion device can be used in conjunction with the readings from a gas meter conforming to EN 1359, EN 12480, or EN 12261, as appropriate, or to any other appropriate and relevant international or national standard for gas meters, without prejudice of national regulations.

ICS

91.140.40 Gázellátó rendszerek

Műszaki Bizottság

A szabvány nyelve

angol

Az érvényesség kezdete

2005-10-01

A visszavonás napja

2011-04-01

Forrás

idt EN 12405-1:2005

Előd

MSZ EN 12405:2002

Utód

MSZ EN 12405-1:2005+A2:2011

Módosítás

MSZ EN 12405-1:2005/A1:2007

Kiegészítő információk

SZK-közlemények

Kapcsolódó európai jogszabály

2004/22/EK; (MID04)

A szabvány

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