• EN 14236 : 2007

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    ULTRASONIC DOMESTIC GAS METERS

    Available format(s): 

    Superseded date:  09-03-2022

    Language(s): 

    Published date:  12-01-2013

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms, definitions and symbols
       3.1 Terms and definitions
       3.2 Symbols
    4 Normal operating conditions
       4.1 Flow range
       4.2 Maximum working pressure
       4.3 Temperature range
       4.4 Range of gases
       4.5 Orientation
    5 Metrological performance
       5.1 General
       5.2 Mode comparison
       5.3 Permissible errors
       5.4 Gas - air relationship
       5.5 Pressure absorption
       5.6 Metrological stability
       5.7 Immunity to contaminants in gas stream
       5.8 Installation effects
       5.9 Zero flow
       5.10 Reverse flow
       5.11 Low flow registration
       5.12 High flow registration
       5.13 Pulsed (unsteady) flow
       5.14 Temperature sensitivity
    6 Construction and materials
       6.1 General
       6.2 Robustness of meter case
       6.3 Corrosion protection
       6.4 Casework decorative finish
       6.5 Ageing of non-metallic casework
       6.6 Ageing of external surfaces of the meter, including
            index windows and adhesion of the index window
       6.7 Protection against solar radiation
       6.8 Resistance to external humidity
       6.9 Flame retardance of external surfaces
       6.10 Resistance to storage temperature range
       6.11 Resistance to the effects of toluene/iso-octane vapour
       6.12 Resistance to water vapour
       6.13 Ageing
    7 Optional features
       7.1 Pressure measuring point
       7.2 Resistance to high ambient temperature
       7.3 Meters with temperature conversion
       7.4 Ancillary devices (if fitted)
       7.5 Use in hazardous zones
    8 Index
       8.1 Recording and storage
       8.2 Display
       8.3 Segmental display
       8.4 Non-volatile memory
       8.5 Display
    9 Marking
       9.1 All meters
       9.2 Two-pipe meters
       9.3 Durability and legibility of marking
       9.4 Accompanying information
    10 Software
       10.1 Requirements
       10.2 Test
    11 Communications
       11.1 General
       11.2 Character transmission
       11.3 Communications protocol
       11.4 Data
       11.5 Test-mode
       11.6 Data optical port
       11.7 Galvanic port (optional)
       11.8 Diagnostics
    12 Battery
       12.1 General
       12.2 Voltage interruptions
       12.3 Minimum operating voltage
       12.4 Battery life
    13 Immunity to electromagnetic disturbances
       13.1 General
       13.2 Electrostatic discharge
       13.3 Radio frequency electromagnetic field
       13.4 Electromagnetic induction (power frequency)
       13.5 Electromagnetic induction (pulsed field)
       13.6 Radio interference suppression
    14 Ultrasonic (acoustic) noise interference
       14.1 Requirements
       14.2 Test
    15 Meters supplied for testing
    Annex A (informative) Test gases
       A.1 General
       A.2 Test gas properties
    Annex B (normative) Production requirements for gas meters
       B.1 Specification
       B.2 Technical requirements
       B.3 Certificates of conformity
    Annex C (normative) Meters with gas temperature conversion
                        devices
       C.1 Scope
       C.2 Metrological performance
    Annex ZA (informative) Relationship between this European
                           Standard and the Essential Requirements
                           of EU Directive 2004/22 Measuring
                           Instruments Directive
    Bibliography

    Abstract - (Show below) - (Hide below)

    Specifies requirements and tests for the construction, performance and safety of class 1,0 and class 1,5 battery powered ultrasonic gas meters (hereinafter referred to as meters), having co-axial single pipe, or two pipe connections, used to measure volumes of distributed fuel gases of the second and/or third family, as given in EN 437, at maximum working pressures not exceeding 0,5 bar and maximum actual flow rates of up to 10 m[3]/h over a minimum ambient temperature range of -10 degrees C to +40 degrees C, and minimum gas temperature span of 40 K, for domestic applications.

    General Product Information - (Show below) - (Hide below)

    Committee TC 237
    Development Note Supersedes ENV 14236. (02/2007)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 16314 : 2013 GAS METERS - ADDITIONAL FUNCTIONALITIES
    BS PD CEN/TR 16787 : 2014 INDUSTRIAL GAS INSTALLATION - GUIDELINE
    BS PD CEN/TR 16061 : 2010 GAS METERS - SMART GAS METERS
    UNE-EN 16314:2014 Gas meters - Additional functionalities
    CEN/TR 16787 : 2014 INDUSTRIAL GAS INSTALLATION - GUIDELINE
    13/30277457 DC : 0 BS EN 1776 - GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
    11/30247615 DC : 0 BS EN 16314 - GAS METERS - ADDITIONAL FUNCTIONALITIES
    DIN EN 16314:2013-09 GAS METERS - ADDITIONAL FUNCTIONALITIES
    I.S. EN 16314:2013 GAS METERS - ADDITIONAL FUNCTIONALITIES
    UNI EN 16314 : 2013 GAS METERS - ADDITIONAL FUNCTIONALITIES
    CEN/TR 16061 : 2010 GAS METERS - SMART GAS METERS
    S.R. CEN/TR 16787:2014 INDUSTRIAL GAS INSTALLATION - GUIDELINE
    DIN 30690-1:2016-04 CONSTRUCTION ELEMENTS IN THE GAS SUPPLY SYSTEM - PART 1: REQUIREMENTS FOR CONSTRUCTION ELEMENTS IN GAS SUPPLY SYSTEMS
    UNE-EN 1776:2017 Gas infrastructure - Gas measuring systems - Functional requirements
    BS EN 1776:2015 GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
    DIN EN 1776:2016-05 GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
    I.S. EN 1776:2015 GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
    EN 1776:2015 GAS INFRASTRUCTURE - GAS MEASURING SYSTEMS - FUNCTIONAL REQUIREMENTS
    EN 16314 : 2013 GAS METERS - ADDITIONAL FUNCTIONALITIES

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    EN 60079-15:2010 EXPLOSIVE ATMOSPHERES - PART 15: EQUIPMENT PROTECTION BY TYPE OF PROTECTION "N"
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    ISO 7724-3:1984 Paints and varnishes Colorimetry Part 3: Calculation of colour differences
    IEC 60707:1999 Flammability of solid non-metallic materials when exposed to flame sources - List of test methods
    EN 437:2003+A1:2009 TEST GASES - TEST PRESSURES - APPLIANCE CATEGORIES
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    IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
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