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DD ENV 14236:2002

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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

Hardcopy , PDF

Superseded date

30-03-2007

Language(s)

English

Published date

06-08-2002

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
         4.4.1 General
         4.4.2 Test gases
         4.4.3 Test gas properties
5 Metrological performance
    5.1 General
    5.2 Mode comparison
         5.2.1 General
         5.2.2 Requirements
         5.2.3 Test
    5.3 Permissible errors
         5.3.1 Requirements
         5.3.2 Test
    5.4 Gas - air relationship
         5.4.1 General
         5.4.2 Requirements
         5.4.3 Test
    5.5 Pressure absorption
         5.5.1 Requirements
         5.5.2 Test
    5.6 Metrological stability
         5.6.1 Requirements
         5.6.2 Test
    5.7 Immunity to contamination in gas stream
         5.7.1 Requirements
         5.7.2 Test
         5.7.3 Specification of contamination dust
    5.8 Installation effects
         5.8.1 Requirements
         5.8.2 Test
    5.9 Zero flow
         5.9.1 Requirements
         5.9.2 Test
    5.10 Reverse flow
         5.10.1 Requirements
         5.10.2 Test
    5.11 Low flow registration
         5.11.1 Requirement
         5.11.2 Test
    5.12 High flow registration
         5.12.1 Requirement
         5.12.2 Test
    5.13 Pulsed (unsteady) flow
         5.13.1 General
         5.13.2 Requirements
         5.13.3 Test
    5.14 Temperature sensitivity
         5.14.1 Requirements
         5.14.2 Test
6 Construction and materials
    6.1 General
    6.2 Robustness of meter case
         6.2.1 General
         6.2.2 Protection against penetration of dust and water
         6.2.3 Resistance to internal pressure
         6.2.4 External leak tightness
         6.2.5 Heat resistance
         6.2.6 Connections
         6.2.7 Resistance to vibration
         6.2.8 Resistance to impact
         6.2.9 Resistance to mishandling
    6.3 Corrosion protection
         6.3.1 General
         6.3.2 Protection against external corrosion for material
                which is not corrosion resistant
         6.3.3 Protection against external corrosion for corrosion
                resistant material
         6.3.4 Protection against internal corrosion for material
                which is not corrosion resistant
         6.3.5 Protection against internal corrosion for corrosion
                resistant material
    6.4 Casework decorative finish
         6.4.1 Scratch test
         6.4.2 Humidity
    6.5 Ageing of non-metallic casework
         6.5.1 Requirements
         6.5.2 Test
    6.6 Ageing of external surfaces of the meter, including index
         windows and adhesion of the index window
         6.6.1 Requirements
         6.6.2 Test
    6.7 Protection against solar radiation
         6.7.1 Requirements
         6.7.2 Test
    6.8 Resistance to external relative humidity
         6.8.1 Requirements
         6.8.2 Test
    6.9 Flame retardance of external surfaces
         6.9.1 Requirements
         6.9.2 Test
    6.10 Resistance to storage temperature range
         6.10.1 Requirement
         6.10.2 Test
    6.11 Resistance to the effects of toluene/iso-octane vapour
         6.11.1 Requirements
         6.11.2 Test
    6.12 Resistance to water vapour
         6.12.1 Requirements
         6.12.2 Test
    6.13 Ageing
         6.13.1 Requirements
         6.13.2 Test
7 Optional features
    7.1 Pressure measuring point
         7.1.1 Requirements
         7.1.2 Test
    7.2 Resistance to high ambient temperature
         7.2.1 Requirements
         7.2.2 Test
         7.2.3 Meter fitted with a thermal shut-off valve
    7.3 Meters with temperature conversion
    7.4 Ancillary devices
    7.5 Use in hazardous zones
8 Index
    8.1 Recording and storage
         8.1.1 Requirement
         8.1.2 Test
    8.2 Display
         8.2.1 Requirement
         8.2.2 Test
    8.3 Segmental display
         8.3.1 Requirements
         8.3.2 Test
    8.4 Non-volatile memory
         8.4.1 Requirements
         8.4.2 Test
9 Marking
    9.1 All meters
    9.2 Two-pipe meters
    9.3 Durability and legibility of marking
         9.3.1 Requirements
         9.3.2 Ultraviolet exposure test
         9.3.3 Indelibility test
10 Software
    10.1 Requirements
    10.2 Test
11 Communications
    11.1 General
    11.2 Character transmission
    11.3 Communications protocol
    11.4 Data
         11.4.1 General
         11.4.2 Data read-out mode
         11.4.3 Data identifiers
         11.4.4 Data set structure
    11.5 Test-mode
         11.5.1 General
         11.5.2 Test-mode commands
         11.5.3 Response of meter to test commands
    11.6 Optical port
    11.7 Galvanic port (optional)
    11.8 Diagnostics
         11.8.1 General
         11.8.2 Displayed flags
12 Battery
    12.1 General
    12.2 Voltage interruptions
         12.2.1 Requirements
         12.2.2 Test
    12.3 Minimum operating voltage
         12.3.1 Requirements
         12.3.2 Test
    12.4 Battery life
13 Immunity to electromagnetic disturbances
    13.1 General
    13.2 Electrostatic discharge
         13.2.1 Requirements
         13.2.2 Test
    13.3 Radio frequency electromagnetic field
         13.3.1 Requirements
         13.3.2 Test
    13.4 Electromagnetic induction (power frequency)
         13.4.1 Requirements
         13.4.2 Test
    13.5 Electromagnetic induction (pulsed field)
         13.5.1 Requirements
         13.5.2 Test
    13.6 Radio interference suppression
         13.6.1 Requirements
         13.6.2 Test
14 Ultrasonic (acoustic) noise interference
    14.1 Requirements
    14.2 Test
         14.2.1 Test sequence
         14.2.2 White noise test
         14.2.3 Scanning frequency test
15 Meters supplied for testing
Annex A (normative) Production requirements for gas meters
A.1 Specification
A.2 Technical requirements
A.3 Certificates of conformity
Annex B (normative) Meters with gas temperature conversion
        devices
B.1 Scope
B.2 Metrological performance
      B.2.1 Errors of indication
      Gas and ambient temperature
      Gas and ambient temperature
      B.2.2 Gas air relationships
      Gas and ambient temperature
      Gas and ambient temperature
      B.2.3 Temperature sensitivity
Bibliography

Describes requirements and tests for the construction, performance and safety of 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 first and/or second and/or third family, as given in EN 437, at maximum working pressures of up to 0,5 bar and maximum actual flow rates of up to 10 m[3]/h over a minimum ambient and gas temperature range of -10 degree C to +40 degree C, for domestic applications. It also applies to meters where the measuring element and the register(s) are enclosed in the same case.

Committee
GSE/25
DocumentType
Standard
Pages
78
PublisherName
British Standards Institution
RevisionOf
Status
Superseded
SupersededBy

Standards Relationship
ENV 14236 : DRAFT 2002 Identical

BS 6400-1:2006 Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Low pressure (2nd family gases)
BS 6400-2:2006 Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Medium pressure (2nd family gases)
05/30086662 DC : DRAFT JAN 2005 BS 6400-2 - SPECIFICATION FOR THE INSTALLATION, EXCHANGE, RELOCATION AND REMOVAL OF DOMESTIC-SIZED GAS METERS (2ND AND 3RD FAMILY GASES) - PART 2: MEDIUM PRESSURE (2ND FAMILY GASES)
04/30043993 DC : DRAFT APR 2004 BS 746 - SPECIFICATION FOR GAS METER UNIONS AND ADAPTORS

IEC 61000-4-8 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-8: TESTING AND MEASUREMENT TECHNIQUES - POWER FREQUENCY MAGNETIC FIELD IMMUNITY TEST
IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
IEC 60068-2-5:2010 Environmental testing - Part 2-5: Tests - Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing
EN 61107 : 1996 DATA EXCHANGE FOR METER READING, TARIFF AND LOAD CONTROL - DIRECT LOCAL DATA EXCHANGE
EN ISO 6272 : 1994 PAINTS AND VARNISHES - FALLING-WEIGHT TEST
EN 61000-4-9:2016 Electromagnetic compatibility (EMC) - Part 4-9: Testing and measurement techniques - Impulse magnetic field immunity test
ISO 6270-1:1998 Paints and varnishes Determination of resistance to humidity Part 1: Continuous condensation
EN 50020:2002 Electrical apparatus for potentially explosive atmospheres - Intrinsic safety 'i'
IEC 61000-4-8:2009 Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test
EN ISO 2409:2013 Paints and varnishes - Cross-cut test (ISO 2409:2013)
EN 61000-4-2:2009 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
EN 60707 : 1999 FLAMMABILITY OF SOLID NON-METALLIC MATERIALS WHEN EXPOSED TO FLAME SOURCES - LIST OF TEST METHODS
CISPR 22:2008 Information technology equipment - Radio disturbance characteristics - Limits and methods of measurement
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
EN 50021 : 99 COR 2000 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - TYPE OF PROTECTION "N"
ISO 4628-3:2016 Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting
ISO 6272:1993 Paints and varnishes — Falling-weight test
IEC 61000-4-9 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-9: TESTING AND MEASUREMENT TECHNIQUES - IMPULSE MAGNETIC FIELD IMMUNITY TEST
ISO/TR 5168:1998 Measurement of fluid flow Evaluation of uncertainties
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
EN ISO 9001:2015 Quality management systems - Requirements (ISO 9001:2015)
EN 55022:2010/AC:2011 INFORMATION TECHNOLOGY EQUIPMENT - RADIO DISTURBANCE CHARACTERISTICS - LIMITS AND METHODS OF MEASUREMENT (CISPR 22:2008)
EN 61000-6-2:2005/corrigendum:2005 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY FOR INDUSTRIAL ENVIRONMENTS (IEC 61000-6-2:2005)
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
EN 61000-4-8:2010 Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test
EN 60086-1:2015 Primary batteries - Part 1: General
IEC 61000-4-2:2008 Electromagnetic compatibility (EMC) - Part 4-2: Testing and measurement techniques - Electrostatic discharge immunity test
IEC 61000-4-3:2006+AMD1:2007+AMD2:2010 CSV Electromagnetic compatibility (EMC) - Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test
ISO 1518:1992 Paints and varnishes Scratch test
EN 60079-10:2003 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
IEC 60086-1:2015 Primary batteries - Part 1: General
ISO 9001:2015 Quality management systems — Requirements
ISO 2812-1:2017 Paints and varnishes — Determination of resistance to liquids — Part 1: Immersion in liquids other than water
EN 60086-4:2015 Primary batteries - Part 4: Safety of lithium batteries
IEC 61107:1996 Data exchange for meter reading, tariff and load control - Direct local data exchange
IEC 60086-4:2014 Primary batteries - Part 4: Safety of lithium batteries
EN 60529:1991/AC:2016-12 DEGREES OF PROTECTION PROVIDED BY ENCLOSURES (IP CODE) (IEC 60529 EDITION 2.2 CORRIGENDUM 2:2015)
EN 60068-2-5:2011 Environmental testing - Part 2-5: Tests - Test Sa: Simulated solar radiation at ground level and guidance for solar radiation testing
EN 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)
ISO 834-1:1999 Fire-resistance tests Elements of building construction Part 1: General requirements
ISO 2409:2013 Paints and varnishes Cross-cut test
EN 50014:1997/A2:1999 ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - GENERAL REQUIREMENTS
ASTM D 471 : 2016-02 TEST METHOD FOR RUBBER PROPERTY - EFFECT OF LIQUIDS
ISO 228-1:2000 Pipe threads where pressure-tight joints are not made on the threads Part 1: Dimensions, tolerances and designation
ISO 4628-2:2016 Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 2: Assessment of degree of blistering
EN 60730-1:2016 Automatic electrical controls - Part 1: General requirements
EN 50082-1:1997 Electromagnetic compatibility - Generic immunity standard - Part 1: Residential, commercial and light industry
IEC 60730-1:2013+AMD1:2015 CSV Automatic electrical controls - Part 1: General requirements
IEC 60068-2-30:2005 Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic (12 h + 12 h cycle)

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