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BS EN 14236:2007

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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Superseded date

17-10-2018

Language(s)

English

Published date

30-03-2007

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 reset
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

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.

This European Standard 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 m3/h over a minimum ambient temperature range of -10 °C to +40 °C, and minimum gas temperature span of 40 K, for domestic applications. This European Standard applies to meters where the measuring element and the register(s) are enclosed in the same case. This European Standard applies to meters with and without built-in temperature conversion, that are installed in locations with vibration and shocks of low significance and in ? closed locations (indoor or outdoor with protection as specified by the manufacturer) with condensing or with non-condensing humidity or, if specified by the manufacturer, ? open locations (outdoor without any covering) with condensing humidity or with non-condensing humidity and in locations with electromagnetic disturbances. Unless otherwise stated, all pressures given in this European Standard are gauge pressures. When more than one meter type is submitted for testing, then each meter type is required to be tested against this European Standard. Clauses 1 to 15 and Annex C are for design and type testing only. NOTE See Annex A for production requirements.

Committee
GSE/25
DevelopmentNote
Supersedes DD ENV 14236. (03/2007)
DocumentType
Standard
Pages
86
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes
UnderRevision

Standards Relationship
UNI EN 14236 : 2007 Identical
EN 14236:2007 Identical
NBN EN 14236 : 2007 Identical
NS EN 14236 : 1ED 2007 Identical
I.S. EN 14236:2007 Identical
ONORM EN 14236 : 2008 Identical
NF EN 14236 : 2007 Identical
UNE-EN 14236:2007 Identical
DIN EN 14236:2008-06 Identical
SN EN 14236 : 2007 Identical
NEN EN 14236 : 2007 Identical
DIN EN 14236 E : 2008 Identical

BS 746:2014 Specification for gas meter unions and adaptors
BS 6400-1:2016 Specification for installation, exchange, relocation, maintenance and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Low pressure (2nd family gases)
BS 746(2005) : 2005 SPECIFICATION FOR GAS METER UNIONS AND ADAPTORS
12/30243876 DC : DRAFT JULY 2012 BS 746 - SPECIFICATION FOR GAS METER UNIONS AND ADAPTORS
14/30281818 DC : 0 BS 6400-1 - SPECIFICATION FOR INSTALLATION, EXCHANGE, RELOCATION, MAINTENANCE AND REMOVAL OF GAS METERS WITH A MAXIMUM CAPACITY NOT EXCEEDING 6 M[3]/H - PART 1: LOW PRESSURE (2ND FAMILY GASES)
BS 6400-3:2007 Specification for installation, exchange, relocation and removal of gas meters with a maximum capacity not exceeding 6 m<sup>3</sup>/h Low and medium pressure (3rd family gases)

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EN 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 (ISO 4628-2:2016)
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 61000-6-1:2007 Electromagnetic compatibility (EMC) - Part 6-1: Generic standards - Immunity for residential, commercial and light-industrial environments
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IEC 61000-6-2:2016 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity standard for industrial environments
EN ISO 4892-3:2016 Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3:2016)
EN 60079-0:2012/A11:2013 EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS (IEC 60079-0:2011, MODIFIED)
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 60079-15:2010 Explosive atmospheres - Part 15: Equipment protection by type of protection "n"
2004/22/EC : 2004 DIRECTIVE 2004/22/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL OF 31 MARCH 2004 ON MEASURING INSTRUMENTS
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 ISO 9227:2017 Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2017)
EN 60707 : 1999 FLAMMABILITY OF SOLID NON-METALLIC MATERIALS WHEN EXPOSED TO FLAME SOURCES - LIST OF TEST METHODS
EN 62056-21:2002 Electricity metering - Data exchange for meter reading, tariff and load control - Part 21: Direct local data exchange
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 ISO 228-1:2003 Pipe threads where pressure-tight joints are not made on the threads - Part 1: Dimensions, tolerances and designation (ISO 228-1:2000)
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
IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
IEC 61000-4-9 : 2.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 4-9: TESTING AND MEASUREMENT TECHNIQUES - IMPULSE MAGNETIC FIELD IMMUNITY TEST
IEC 62056-21:2002 Electricity metering - Data exchange for meter reading, tariff and load control - Part 21: Direct local data exchange
EN 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 4628-3:2016)
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
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)
ISO 4892-3:2016 Plastics Methods of exposure to laboratory light sources Part 3: Fluorescent UV lamps
EN 61000-4-8:2010 Electromagnetic compatibility (EMC) - Part 4-8: Testing and measurement techniques - Power frequency magnetic field immunity test
ASTM D 1003 : 2013 : REDLINE Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics
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
IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
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
ISO 6272-1:2011 Paints and varnishes — Rapid-deformation (impact resistance) tests — Part 1: Falling-weight test, large-area indenter
ISO 9227:2017 Corrosion tests in artificial atmospheres — Salt spray tests
EN 60086-4:2015 Primary batteries - Part 4: Safety of lithium batteries
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 60695-11-5:2017 Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance
IEC 60695-11-5 : 2.0 FIRE HAZARD TESTING - PART 11-5: TEST FLAMES - NEEDLE-FLAME TEST METHOD - APPARATUS, CONFIRMATORY TEST ARRANGEMENT AND GUIDANCE
IEC 60695-11-5:2016 Fire hazard testing - Part 11-5: Test flames - Needle-flame test method - Apparatus, confirmatory test arrangement and guidance
IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
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
EN ISO 6272-1:2011 Paints and varnishes - Rapid-deformation (impact resistance) tests - Part 1: Falling-weight test, large-area indenter (ISO 6272-1:2011)
IEC 60079-15:2010 Explosive atmospheres - Part 15: Equipment protection by type of protection "n"
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
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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