BS EN 12405-2:2012
Current
The latest, up-to-date edition.
Gas meters. Conversion devices Energy conversion
Hardcopy , PDF
English
31-08-2012
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principles of energy determination
5 Rated operating conditions
6 Construction requirements
7 Installation requirements
8 Metrological requirements
9 Tests of conformity
10 Marking
11 Installation and operating instructions
Annex A (normative) - Type test of the energy
calculator (EC)
Annex B (normative) - Type test of the calorific
value determination device (CVDD)
Annex C (normative) - Type approval tests of
volume conversion device (VCD)
Annex D (normative) - Compatibility test for
the set of VCD + CVDD + EC
Annex E (normative) - Type approval test
of the VCD/EC
Annex F (normative) - Type approval test
of the EC/CVDD
Annex G (normative) - Type approval test
of the VCD/EC/CVDD
Annex H (normative) - Environmental influences
(test procedures)
Annex I (normative) - Testing of the data
transmission interface of ECD
Bibliography
Describes the requirements and tests for the construction, performance, safety and conformity of conversion devices used to determine the energy of fuel gases.
| Committee |
GSE/25
|
| DevelopmentNote |
Supersedes 09/30207853 DC. (08/2012)
|
| DocumentType |
Standard
|
| Pages |
78
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This European Standard specifies the requirements and tests for the construction, performance, safety and conformity of conversion devices used to determine the energy of fuel gases described in the Table 1, including those of the 1st and 2nd families according to EN 437. The energy conversion device (ECD) considered in this standard consists of an energy calculator (EC) and is associated with the following devices and/or functions: - a volume conversion device (VCD) or a flow computer used as gas meter conversion, either conforming to EN 12405-1, or to prEN 12405-3, for high accuracy measurements; - a calorific value determination device (CVDD). Requirements for type approval tests of the devices, not included in the above-mentioned standards are described in appropriate annexes specified in Table 6. For the purpose of this European Standard, the term \'volume conversion devices\' (VCDs) includes flow computers (FCs). A single calculator may undertake the volume conversion functions for different metering lines.
| Standards | Relationship |
| EN 12405-2:2012 | Identical |
| EN 60654-2:1997 | Operating conditions for industrial-process measurement and control equipment - Part 2: Power |
| EN 60068-3-1:2011 | Environmental testing - Part 3-1: Supporting documentation and guidance - Cold and dry heat tests |
| EN 61000-6-1:2007 | Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments |
| EN 12405-1:2005+A2:2010 | Gas meters - Conversion devices - Part 1: Volume conversion |
| EN ISO 13443:2005 | Natural gas - Standard reference conditions (ISO 13443:1996 including Corrigendum 1:1997) |
| EN 61000-4-1:2007 | Electromagnetic compatibility (EMC) - Part 4-1: Testing and measurement techniques - Overview of IEC 61000-4 series |
| ISO 6976:2016 | Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition |
| OIML D 11 : 2013 | GENERAL REQUIREMENTS FOR MEASURING INSTRUMENTS - ENVIRONMENTAL CONDITIONS |
| EN 61000-4-11:2004/A1:2017 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-11: TESTING AND MEASUREMENT TECHNIQUES - VOLTAGE DIPS, SHORT INTERRUPTIONS AND VOLTAGE VARIATIONS IMMUNITY TESTS (IEC 61000-4-11:2004/A1:2017) |
| EN 60068-2-1:2007 | Environmental testing - Part 2-1: Tests - Test A: Cold |
| EN 60068-2-2:2007 | Environmental testing - Part 2-2: Tests - Test B: Dry heat |
| EN 60950-1:2006/A2:2013 | INFORMATION TECHNOLOGY EQUIPMENT - SAFETY - PART 1: GENERAL REQUIREMENTS (IEC 60950-1:2005/A2:2013, MODIFIED) |
| EN 60068-2-64:2008 | ENVIRONMENTAL TESTING - PART 2-64: TESTS - TEST FH: VIBRATION, BROADBAND RANDOM AND GUIDANCE |
| ISO 12213-3:2006 | Natural gas Calculation of compression factor Part 3: Calculation using physical properties |
| EN 61000-4-2:2009 | Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test |
| EN 60068-3-8:2003 | Environmental testing - Part 3-8: Supporting documentation and guidance - Selecting amongst vibration tests |
| EN 61000-4-3 : 2006 AMD 2 2010 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-3: TESTING AND MEASUREMENT TECHNIQUES - RADIATED, RADIO-FREQUENCY, ELECTROMAGNETIC FIELD IMMUNITY TEST |
| ISO/IEC Guide 99:2007 | International vocabulary of metrology Basic and general concepts and associated terms (VIM) |
| ISO 6143:2001 | Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures |
| EN 61000-2-2:2002/A1:2017 | ELECTROMAGNETIC COMPATIBILITY (EMC) - ENVIRONMENT - COMPATIBILITY LEVELS FOR LOW-FREQUENCY CONDUCTED DISTURBANCES AND SIGNALLING IN PUBLIC LOW-VOLTAGE POWER SUPPLY SYSTEMS (IEC 61000-2-2:2002/A1:2017) |
| EN 437:2003+A1:2009 | Test gases - Test pressures - Appliance categories |
| EN 61000-6-2:2005/corrigendum:2005 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY FOR INDUSTRIAL ENVIRONMENTS (IEC 61000-6-2:2005) |
| EN 61000-4-8:2010 | Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test |
| ISO 13443:1996 | Natural gas Standard reference conditions |
| EN ISO 12213-3:2009 | Natural gas - Calculation of compression factor - Part 3: Calculation using physical properties (ISO 12213-3:2006) |
| ISO 6142:2001 | Gas analysis Preparation of calibration gas mixtures Gravimetric method |
| IEC TR 61000-2-1:1990 | Electromagnetic compatibility (EMC) - Part 2: Environment - Section 1: Description of the environment - Electromagnetic environment for low-frequency conducted disturbances and signalling in public power supply systems |
| PREN 12405-3 : DRAFT 2013 | GAS METERS - CONVERSION DEVICES - PART 3: FLOW COMPUTER |
| ENV 13005 : DRAFT 1999 | GUIDE TO THE EXPRESSION OF UNCERTAINTY IN MEASUREMENT |
| EN 1359:2017 | Gas meters - Diaphragm gas meters |
| EN 60068-2-78:2013 | Environmental testing - Part 2-78: Tests - Test Cab: Damp heat, steady state |
| ISO 6974-1:2012 | Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition |
| ISO 12213-1:2006 | Natural gas Calculation of compression factor Part 1: Introduction and guidelines |
| EN 61000-4-4:2012 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-4: TESTING AND MEASUREMENT TECHNIQUES - ELECTRICAL FAST TRANSIENT/BURST IMMUNITY TEST (IEC 61000-4-4:2012) |
| EN 60068-3-4:2002 | Environmental testing - Part 3-4: Supporting documentation and guidance - Damp heat tests |
| EN 61000-4-6:2014/AC:2015 | ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-6: TESTING AND MEASUREMENT TECHNIQUES - IMMUNITY TO CONDUCTED DISTURBANCES, INDUCED BY RADIO-FREQUENCY FIELDS (IEC 61000-4-6:2013) |
| EN 60529:1991/AC:2016-12 | DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015) |
| EN 60068-2-30:2005 | Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle) |
| EN ISO 12213-2:2009 | Natural gas - Calculation of compression factor - Part 2: Calculation using molar-composition analysis (ISO 12213-2:2006) |
| EN ISO 12213-1:2009 | Natural gas - Calculation of compression factor - Part 1: Introduction and guidelines (ISO 12213-1:2006) |
| ISO 6141:2015 | Gas analysis Contents of certificates for calibration gas mixtures |
| ISO 12213-2:2006 | Natural gas Calculation of compression factor Part 2: Calculation using molar-composition analysis |
| OIML R 140 : 2007 | MEASURING SYSTEMS FOR GASEOUS FUEL |
| OIML D 31 : 2008 | GENERAL REQUIREMENTS FOR SOFTWARE CONTROLLED MEASURING INSTRUMENTS |
| EN 61000-4-29:2000 | Electromagnetic compatibility (EMC) - Part 4-29: Testing and measurement techniques - Voltage dips, short interruptions and voltage variations on d.c. input power port immunity tests |
| EN 60730-1:2016 | Automatic electrical controls - Part 1: General requirements |
| ISO/IEC Guide 98-3:2008 | Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) |
| EN 1776:2015 | Gas infrastructure - Gas measuring systems - Functional requirements |
| EN 60068-2-31:2008 | ENVIRONMENTAL TESTING - PART 2-31: TESTS - TEST EC: ROUGH HANDLING SHOCKS, PRIMARILY FOR EQUIPMENT-TYPE SPECIMENS |
| EN 60068-2-47:2005 | Environmental testing - Part 2-47: Tests - Mounting of specimens for vibration, impact and similar dynamic tests |
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