ДСТУ EN 12405-1:2014 Коректори до лічильників газу електронні. Частина 1. Корекція об`єму (EN 12405-1:2005+A2:2010, IDT)

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Наказом Міністерства економічного розвитку і торгівлі України від 30.12.2014 № 1494

EN 12405-1:2005

en: Gas meters - Conversion devices - Part 1: Volume conversion

прийнято як національний стандарт методом «підтвердження» за позначенням
Відповідає офіційному тексту ДСТУ EN 12405-1:2014

uk: Коректори до лічильників газу електронні. Частина 1. Корекція об’єму

(EN 12405-l:2005+A2:2010, IDT)

З наданням чинності від 2016-01-01

EUROPEAN STANDARD NORME EUROPEENNE EUROPAISCHE NORM

EN 12405-1:2005+A2

October 2010

ICS 91.140.40

Supersedes EN 12405-1:2005

English Version

Gas meters - Conversion devices - Part 1: Volume conversion

Compteurs de gaz - Oispositifs de conversion - Partie 1: Conversion de volume

Gaszahler - Umwerter - Teil 1: Volumenumwertung

This European Standard was approved by CEN on IS March 2005 and Includes Amendment 1 approved by CEN on 6 July 2006 and Amendment 2 approved by CEN on 19 September 2010.

CEN members are bound to comply with the CEN/CENELEC internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Managemont Centre or to any OEM member.

This European Standard exists in three official versions (English. French, German). Aversion in any other language made by translation under the responsibility of a CEN member into Its own language and notified to the CEN Management Centre has the same status as the official versions.

CEN members are the national stand arcs bodies of Austria, Belgium. Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Prance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg. Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEAN DE NORMALISATION EUROPAISCHES KOMITEE FOR NORMUNO

Management Centre: Avenue Mamix 17, B-1000 Brussels

Contents

Foreword .

1 Scope

2 Normative references

3 Terms, definitions and symbols

3.1 Terms and definitions

3.2 Symbols

3.3 Classification

3.3.1 Mechanical classes

3.3.2 Electromagnetic environmental classes

4 Principle of measurement

4.1 Conversion as a function of temperature

4.2 Conversion as a function of pressure and temperature

4.3 Conversion as a function of pressure, temperature and deviation from the ideal gas law

4.4 Correction of the volume at measurement conditions

5 Rated operating conditions

5.1 Specified field of measurement

5.1.1 Specified measurement range for gas pressure

5.1.2 Specified measurement range for gas temperature

5.1.3 Gas characteristics

5.1.4 Base conditions

5.2 Environmental conditions

5.2.1 Ambient temperature range

5.2.2 Humidity range

5.2.3 Mechanical environment

5.2.4 Electromagnetic environment

5.3 Power supply

6 Construction requirements

6.1 General

6.2 Casings

6.3 Indications

6.3.1 General

6.3.2 Electronic Indicating device

6.4 Inputs for volume conversion

6.5 Battery powered conversion device

6.6 Security devices and alarms

7 Installation requirements

7.1 General

7.2 Temperature transducer

7.3 Pressure transducer

8 Performance

8.1 Reference conditions

8.2 Rated operating conditions

8.3 Maximum permissible errors

8.3.1 General

8.3.2 Error of conversion

8.3.3 Specific errors for a gas-volume conversion device, type 2

8.4 Conditions of matching the constituent elements of a conversion device type 2

8.5 Influence factors

8.6 Disturbances

8.7 Durability

8.8 Repeatability

8.9 Reliability

9 Tests of conformity

9.1 Verification of the construction requirements

9.2 Verification of the performance requirements

9.2.1 Test conditions

9.2.2 Samples of gas volume conversion device type 1 required for testing

9.2.3 Samples of gas volume conversion devices type 2 required for testing

9.3 Test report

10 Marking

11 Installation and operating instructions

Annex A (normative) Type test

A.1 General conditions

A.1.1 General

A.1.2 Additional conditions specific to gas volume conversion devices type 1

A.1.3 Additional conditions specific to gas-volume conversion devices type 2

A.1.4 Test procedures

A.1.5 Verification of the construction requirements

A.2 Accuracy tests under reference conditions

A.2.1 Objective

A.2.2 Reference to documents

A.2.3 Procedure

A.2.4 Acceptance criteria

A.3 Effect of ambient temperature

A.3.1 Objective

A.3.2 Reference to documents

A.3.3 Procedure

A.3.4 Acceptance criteria

A.4 Effect of damp heat, steady state test

A.4.1 Objective

A.4.2 Reference to documents

A.4.3 Procedure

A.4.4 Acceptance criteria

A.5 Effect of damp heat, cyclic test

A.5.1 Objective

A.5.2 Reference to documents

A.5.3 Procedure

A.5.4 Acceptance criteria

A.6 Electrical power variation

A.6.1 Objective

A.6.2 Reference to documents

A.6.3 Procedure

A.6.4 Acceptance criteria

A.7 Short time power reductions

A.7.1 Objective

A.7.2 Reference to documents

A.7.3 Procedure

A.7.4 Acceptance criteria

A.8 Electrical bursts

A.8.1 Objective

A.8.2 Reference to documents

A.8.3 Procedure

A.8.4 Acceptance criteria

A.9 Electromagnetic susceptibility

A.9.1 Objective

A.9.2 Reference to documents

A.9.3 Procedure

A.9.4 Acceptance criteria

A.10 Electrostatic discharges

A.10.1 Objective

A.10.2 Reference to documents

A.10.3 Procedure

A.10.4 Acceptance criteria

A.11 Overload of pressure (only for type 1 and pressure transducers)

A.11.1 Objective

A.11.2 Reference to documents

A.11.3 Procedure

A.11.4 Acceptance criteria

A.12 Effect of vibrations

A.12.1 Objective

A.12.2 Reference to documents

A.12.3 Procedure

A.12.4 Acceptance criteria

A.13 Effect of shocks

A.13.1 Objective

A.13.2 Reference to documents

A.13.3 Procedure

A.13.4 Acceptance criteria

A.14 Overload of pressure (mechanical)

A.14.1 Objective

A.14.2 Reference to documents

A.14.3 Procedure

A.14.4 Acceptance criteria

A.15 Durability

A.15.1 Objective

A.15.2 Reference to documents

A.15.3 Procedure

A.15.4 Acceptance criteria

A.16 Alarms operation

A.16.1 Objective

A.16.2 Reference to documents

A.16.3 Procedure

A.16.4 Acceptance criteria

A.17 Repeatability

A.17.1 Objective

A.17.2 Reference to standards

A.17.3 Procedure

A.17.4 Acceptance criteria

A.18 Short time DC power variations

A.18.1 Objective

A.18.2 Reference to standards

A.18.3 Procedure

A.18.4 Acceptance criteria

A.19 Surges on supply lines and/or signal lines

A.19.1 Objective

A.19.2 Reference to standards

A.19.3 Procedure

A.19.4 Acceptance criteria

A.20 Power frequency magnetic field

A.20.1 Objective

A.20.2 Reference to standards

A.20.3 Procedure

A.20.4 Acceptance criteria

Annex В (normative) Pressure transducers

B.1 Scope

B.2 Rated operating conditions

B.2.1 Specified measurement range for pressure

B.2.2 Environmental class

B.2.3 Power supply

B.3 Construction requirements

B.3.1 General

B.3.2 Casings

B.3.3 Indications

B.4 Performances

B.4.1 Reference conditions

B.4.2 Rated operating conditions

B.4.3 Maximum permissible errors

B.4.4 influence factors

B.4.5 Disturbances

В.4.6 Durability

B.5 Tests of conformity

B.5.1 Test conditions

B.5.2 Tests

B.5.3 Sample of pressure transducers required for testing

B.6 Marking

Annex C (normative) Platinum resistance thermometer sensors

C.1 Scope

C.2 Operating rated conditions

C.2.1 Specified measurement range for temperature

C.2.2 Environmental class

C.3 Construction requirements

C.4 Performances

C.5 Marking

C.5.1 Required markings

C.5.2 Verification mark

C.6 Metrological verifications

C.6.1 Type approval

C.6.2 Initial verification

C.7 Verification procedure

C.7.1 Visual inspection

C.7.2 Type testing (type approval)

C.7.3 Samples of PRT required for testing

C.7.4 Initial verification

Annex D (normative) Temperature transducers

D.1 Scope

D.2 Rated operating conditions

D.2.1 Specified measurement range for temperature

D.2.2 Environmental class

D.2.3 Power supply

D.3 Construction requirements

D.3.1 General

D.3.2 Casings

D.3.3 Indications

D.4 Performances

D.4.1 Reference conditions

D.4.2 Rated operating conditions

D.4.3 Maximum permissible errors

D.4.4 Influence factors

D.4.5 Disturbances

D.4.6 Durability

D.5 Tests of conformity

D.5.1 Test conditions

D.5.2 Tests

D.5.3 Sample of temperature transducers required for testing

D.6 Marking

Annex E (informative) Model type test report for conversion devices

E.1 General

E.1.1 General remarks

E.1.2 Number of pages

E.1.3 Laboratory’s identification

E.1.4 Applicant

E.1.5 Identification of device(s) submitted for testing

E.2 Accuracy tests under reference conditions

E.2.1 Ambient temperature during the test

E.2.2 Test equipment used

E.2.3 Test results

E.3 Ambient temperature

E.3.1 Effect of dry heat

E.3.2 Effect of cold

E.4 Effect of damp heat, steady state test

E.4.1 Ambient temperature during the test

E.4.2 Test equipment used

E.4.3 Test results

E.5 Effect of damp heat, cyclic test

E.5.1 Ambient temperature during the test

E.5.2 Test equipment used

E.5.3 Test results

E.6 Electrical power variation

E.6.1 AC power supply

E.6.2 DC power supply or battery supply

E.7 Short time power reductions

E.7.1 Test equipment used

E.7.2 Test results

E.8 Electrical bursts

E.8.1 Test equipment used

E.8.2 Test results

E.9 Electromagnetic immunity

E.9.1 Test equipment used

E.9.2 Test results

E.10 Electrostatic discharges

E.10.1 Test equipment used

E.10.2 Test results

E.11 Effect of an overload of static pressure

E.11.1 Ambient temperature during the test

E.11.2 Test equipment used

E.11.3 Test results

E.12 Effect of vibrations

E.12.1 Ambient temperature during the test

E.12.2 Test equipment used

E.12.3 Test results

E.13 Effect of shocks

E.13.1 Ambient temperature during the test

E.13.2 Test equipment used

E.13.3 Test results

E.14 Mechanical resistance to overload of static pressure

E.14.1 Ambient temperature during the test

E.14.2 Test equipment used

E.14.3 Test results

E.15 Durability

E.15.1 Ambient temperature during the test

E.15.2 Test equipment used

E.15.3 Test equipment used

E.16 Alarms operation

E.16.1 Ambient temperature during the test

E.16.2 Test equipment used

E.16.3 Test results

E.17 Repeatability

E.18 Short time DC power variations

E.18.1 Test equipment used

E.18.2 Test results

E.19 Surges on supply lines and/or signal lines

E.19.1 Test equipment used

E.19.2 Test results

E.20 Power frequency magnetic field

E.20.1 Test equipment used

E.20.2 Test results

Annex F (informative) Model type test report for associated transducers

F.1 General

F.1.1 General remarks

F.1.2 Number of pages

F.1.3 Laboratory’s identification

F.1.4 Applicant

F.1.5 Identification of device(s) submitted for testing

F.2 Accuracy tests under reference conditions

F.2.1 Ambient temperature during the test

F.2.2 Test equipment used

F.2.3 Test results

F.3 Ambient temperature

F.3.1 Effect of dry heat

F.3.2 Effect of cold

F.4 Effect of damp heat, steady state test

F.4.1 Ambient temperature during the test

F.4.2 Test equipment used

F.4.3 Test results

F.5 Effect of damp heat, cyclic test

F.5.1 Ambient temperature during the test

F.5.2 Test equipment used

F.5.3 Test results

F.6 Electrical power variation

F.6.1 AC power supply

F.6.2 DC power supply or battery supply

F.7 Short time power reductions

F.7.1 Ambient temperature during the test

F.7.2 Test equipment used

F.7.3 Test results

F.8 Electrical bursts

F.8.1 Ambient temperature during the test

F.8.2 Test equipment used

F.8.3 Test results

F.9 Electromagnetic immunity

F.9.1 Ambient temperature during the test

F.9.2 Test equipment used

F.9.3 Test results

F.10 Electrostatic discharges

F.10.1 Ambient temperature during the test

F.10.2 Test equipment used

F.10.3 Test results

F.11 Effect of an overload of static pressure

F.11.1 Ambient temperature during the test

F.11.2 Test equipment used

F.11.3 Test results

F.12 Effect of vibrations

F.12.1 Ambient temperature during the test

F.12.2 Test equipment used

F.12.3 Test results

F.13 Effect of shocks

F.13.1 Ambient temperature during the test

F.13.2 Test equipment used

F.13.3 Test results

F.14 Mechanical resistance to overload of static pressure

F.14.1 Ambient temperature during the test

F.14.2 Test equipment used

F.14.3 Test results

F.15 Durability

F.15.1 Ambient temperature during the test

F.15.2 Test equipment used

F.15.3 Test results

F.16 Repeatability

Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 2004/22 Measuring instruments Directive 106

Bibliography

Foreword

This document (EN 12405-1:2005+A2:2010) has been prepared by Technical Committee CEN/TC237 «Gas meters», the secretariat of which is held by BSI.

This deleted text European Standard deleted text shall be given (he status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2011. and conflicting national standards shall be withdrawn at the latest by April 2011.

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2004/22 Measuring Instruments Directive (MID).

For relationship with EU Directive 2004/22, see informative Annex ZA, which is an integral part of this document.

This document includes Amendment 1, approved by CEN on 2006-07-06 and Amendment 2, approved by CEN on 2010-09-19.

This document supersedes EN 12405-1:2005

The start and finish of text introduced or altered by amendment is Indicated In the text by tags and.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or ail such patent rights.

Due to technical developments the layout of the document has been changed and EN 12405 will appear in parts:

— Part 1: Volume conversion (this European Standard),

— Part 2: Energy conversion (in preparation),

— Part 3: Data loggers.

Further parts are under consideration, following the technical progress.

In the preparation of this European Standard, the content of OIML Publication, «International Document 11», «International Recommendations 6» and «international Recommendations 32° and the content of member bodies national standards on gas-volume electronic conversion devices have been taken into account.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard; Austria. Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

1 Scope

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 (be 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 PT2 conversion).

This document is not relevant to temperature conversion integrated into gas meters which only indicate the converted volume.

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 bet 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 12281, as appropriate, or to any other appropriate and relevant international or national standard for gas meters, without prejudice of national regulations.

2 Normative references

The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

EN 437, Test gases – Test pressures – Appliance categories

EN 1776, 6as supply systems – Natural gas measuring stations – Functional requirements

EN 55011, Industrial, scientific and medical (ISM) radio-frequency equipment – Radio disturbance characteristics – Limits and methods of measurement (CISPR 11:1997, modified)

EN 60068-2-1, Environmental testing – Part 2: Tests – Tests A: Cold (IEC 60068-2-1:1990)

EN 60068-2-2, Basic environmental testing procedures – Part 2: Tests – Tests 8: Dry heat (ІEС 60068-2-2:1974 + IEC 60Q68-2-2A:1976)

EN 60068-2-30, Environmental testing – Part 2; Tests – Test Ob and guidance: Damp heat, cyclic (12 + 12 hour cycle) (IEC 60068-2-30:19S0 + A1:19$5)

EN 60066-2-31, Basic environmental testing procedures – Part 2: Tests – Test Ec: Drop and topple, primarily for equipment-type specimens (IEC 60066-2-31:1969 + A1:1982)

EN 60068-2-78, Environmental testing – Part 2-78: Tests – Test Cab: Damp heat, steady state (EC 60068-78:2001)

EN 60079-0, Electrical apparatus for potentially explosive atmospheres – Part 0: General requirements (IEC 60079-0:2004)

EN 60079-1, Electrical apparatus for potentially explosive atmospheres – Flameproof enclosures «d» (IEC 60079-1:2003)

EN 60079-2, Electrical apparatus for potentially explosive atmospheres – Part 2: Pressurized apparatus «p» (IEC 60079-2:2001)

EN 60079-5, Explosive atmospheres – Part 6: Equipment protection by powder Wing «q» (IEC 60079-5:2007)

EN 60079-6, Explosive atmospheres – Part 6: Equipment protection by oil immersion «o» (IEC 60079-6:2007)

EN 60079-7, Electrical apparatus for potentially explosive atmospheres – increased safety «e» (IEC 60079-7:2001)

EN 60079-11, Explosive atmospheres – Part 11: Equipment protection by intrinsic safety «i» (IEC 60079-11:2006)

EN 60079-25, Electrical apparatus for explosive gas atmospheres – Part 25: Intrinsically safe systems (IEC 60079-25:2003)

EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529:1989)

EN 60730-1:2000, Automatic electrical controls for household and similar use – Part 1: General requirements (IEC 60730-1:1999, modified)

EN 60751, Industrial platinum resistance thermometer sensors (IEC 60751:1983 + A1:1986)

EN 60950-1, Information technology equipment – Safety – Part 1: General requirements (IEC 60950-1:2001, modified)

EN 61000-4-2. Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 2: Electrostatic discharge immunity test – Basic EMC publication (IEC 61000-4-2:1995)

EN 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement techniques – Radiated, radio-frequency, electromagnetic field immunity test (IEC 61000-4-3:2002)

EN 61000-4-4, Electromagnetic compatibility (EMC) – Part 4-4: Testing and measurement techniques – Electrical fast transient/burst immunity test (IEC 61000-4-4:2004)

EN 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement techniques – Surge immunity test (IEC 61000-4-5:2005)

EN 61000-4-6, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 6: Immunity to conducted disturbances, induced by radio-frequency fields (IEC 61000-4-6:1996)

EN 61000-4-8, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 8: Power frequency magnetic field immunity test (IEC 61000-4-8:1993 + A1 2001)

EN 61000-4-11, Electromagnetic compatibility (EMC) – Part 4-11: Testing and measurement techniques – Voltage dips, short interruptions and voltage variations immunity tests (IEC 61000-4-11:2004)

EN 61000-4-29, 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 (IEC 61000-4-29:2000)

EN ISO 12213-2:2005, Natural gas – Calculation of compression factor – Part 2: Calculation using molar-composition analysis (ISO 12213-2:1997)

EN ISO 12213-3:2005, Natural gas – Calculation of compression factor – Part 3: Calculation using physical properties (ISO 12213-3:1997)

3 Terms, definitions and symbols

3.1 Terms and definitions

For the purposes of this European Standard, the following terms and definitions apply.

3.1.1 absolute static pressure

value of the static pressure of the gas relative to vacuum

3.1.2 base conditions

specified conditions to which the measured quantity of gas is converted

EXAMPLES Temperature of 273,15 K and absolute pressure of 1,013 25 bar1 or temperature of 2S8,15K and absolute pressure of 1,013 25 bar

The conversion device is non-operational when the influence factor is applied.

The tests shall be performed 2 times:

— at reference conditions, before the cyclic variations;

— at reference conditions, after the cyclic variations.

Bibliography

[1] EN 1359, Gas meters – Diaphragm gas meters

[2] EN 12261, Gas meters – Turbine gas meters

[3] EN 12480, Gas meters – Rotary displacement gas meters

[4] EN 22768-1, General tolerances – Part 1: Tolerances for linear and angular dimensions without individual tolerance indications (ISO 2768-1:1989)

[5] EN 24006, Measurement of fluid flow in closed conduits – Vocabulary and symbols (ISO 4006:1991)

[6] EN 50160, Voltage characteristics of electricity supplied by public distribution systems

[7] EN 60730-1, Automatic electric controls for household and similar use – Part 1: General requirements (IEC 60730-1:1999, modified)

[8] EN 61000-4-1, Electromagnetic compatibility (EMC) – Part 4-1: Testing and measurement techniques – Overview IEC 61000-4 series (IEC 61000-4-1:2000)

[9] EN 61000-4-5, Electromagnetic compatibility (EMC) – Part 4: Testing and measurement techniques – Section 5: Surge immunity test (IEC 61000-4-5:1995)

[10] ISO/DIS 5168, Measurement of fluid flow – Evaluation of uncertainties

[11] VIM, International Vocabulary of basic and general terms in Metrology

[12] IEC 61000-4-3, Electromagnetic compatibility (EMC) – Part 4-3: Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test

[13] OIML D11, General requirements for electronic measuring instruments, 2004

[14] OIML G1, Guide to the expression of uncertainty in measurement (GUM), 1995

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