Already a subscriber? ![](/assets/images/login.png)
![](/assets/images/x.png)
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check![](/assets/images/x.png)
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
![](/assets/images/159.gif)
BS EN 12405-1:2018 - TC Tracked Changes. Gas meters. Conversion devices - Volume conversion, 2020
- 30356732.pdf [Go to Page]
- undefined
- 1 Scope
- 2 Normative references
- 3 Terms, definitions, symbols and classification [Go to Page]
- 3.1 Terms and definitions
- 3.2 Symbols
- 3.3 Classification [Go to Page]
- 3.3.1 Mechanical classes
- 3.3.2 Electromagnetic environmental classes
- 4 Principle of measurement [Go to Page]
- 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 [Go to Page]
- 5.1 Specified field of measurement [Go to Page]
- 5.1.1 General
- 5.1.2 Specified measurement range for gas pressure
- 5.1.3 Specified measurement range for gas temperature
- 5.1.4 Gas characteristics
- 5.1.5 Base conditions
- 5.2 Environmental conditions [Go to Page]
- 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 [Go to Page]
- 6.1 General
- 6.2 Casings
- 6.3 Indications [Go to Page]
- 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 [Go to Page]
- 7.1 General
- 7.2 Temperature transducer
- 7.3 Pressure transducer
- 8 Performance [Go to Page]
- 8.1 Reference conditions
- 8.2 Rated operating conditions
- 8.3 Maximum permissible errors [Go to Page]
- 8.3.1 Conversion devices type 1
- 8.3.2 Conversion devices type 2
- 8.3.3 Error of conversion
- 8.3.4 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 [Go to Page]
- 9.1 Verification of the construction requirements
- 9.2 Verification of the performance requirements [Go to Page]
- 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 [Go to Page]
- A.1 General conditions [Go to Page]
- 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 [Go to Page]
- A.1.4.1 Test procedure 1 (PR1)
- A.1.4.2 Test procedure 2 (PR2)
- A.1.4.3 Test procedure 3 (PR3)
- A.1.4.4 Test procedure 4 (PR4)
- A.1.4.5 Test procedure 5 (PR5)
- A.1.5 Verification of the construction requirements
- A.2 Accuracy tests under reference conditions [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- A.5.1 Objective
- A.5.2 Reference to documents
- A.5.3 Procedure
- A.5.4 Acceptance criteria
- A.6 Electrical power variation [Go to Page]
- 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 [Go to Page]
- A.7.1 Objective
- A.7.2 Reference to documents
- A.7.3 Procedure
- A.7.4 Acceptance criteria
- A.8 Electrical bursts [Go to Page]
- A.8.1 Objective
- A.8.2 Reference to documents
- A.8.3 Procedure
- A.8.4 Acceptance criteria
- A.9 Electromagnetic susceptibility [Go to Page]
- A.9.1 Objective
- A.9.2 Reference to documents
- A.9.3 Procedure
- A.9.4 Acceptance criteria
- A.10 Electrostatic discharges [Go to Page]
- 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) [Go to Page]
- A.11.1 Objective
- A.11.2 Reference to documents
- A.11.3 Procedure
- A.11.4 Acceptance criteria
- A.12 Effect of vibrations [Go to Page]
- A.12.1 Objective
- A.12.2 Reference to documents
- A.12.3 Procedure
- A.12.4 Acceptance criteria
- A.13 Effect of shocks [Go to Page]
- 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) [Go to Page]
- A.14.1 Objective
- A.14.2 Reference to documents
- A.14.3 Procedure
- A.14.4 Acceptance criteria
- A.15 Durability [Go to Page]
- A.15.1 Objective
- A.15.2 Reference to documents
- A.15.3 Procedure
- A.15.4 Acceptance criteria
- A.16 Alarms operation [Go to Page]
- A.16.1 Objective
- A.16.2 Reference to documents
- A.16.3 Procedure
- A.16.4 Acceptance criteria
- A.17 Repeatability [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- A.20.1 Objective
- A.20.2 Reference to standards
- A.20.3 Procedure
- A.20.4 Acceptance criteria
- Annex B (normative) Pressure transducers [Go to Page]
- B.1 Scope
- B.2 Rated operating conditions [Go to Page]
- B.2.1 Specified measurement range for pressure
- B.2.2 Environmental class
- B.2.3 Power supply
- B.3 Construction requirements [Go to Page]
- B.3.1 General
- B.3.2 Casings
- B.3.3 Indications [Go to Page]
- B.3.3.1 General
- B.3.3.2 Electronic indicating device
- B.4 Performances [Go to Page]
- 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
- B.4.6 Durability
- B.5 Tests of conformity [Go to Page]
- 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 [Go to Page]
- C.1 Scope
- C.2 Operating rated conditions [Go to Page]
- C.2.1 Specified measurement range for temperature
- C.2.2 Environmental class
- C.3 Construction requirements
- C.4 Performances
- C.5 Marking [Go to Page]
- C.5.1 Required markings
- C.5.2 Verification mark
- C.6 Metrological verifications [Go to Page]
- C.6.1 Type approval
- C.6.2 Initial verification
- C.7 Verification procedure [Go to Page]
- 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 [Go to Page]
- D.1 Scope
- D.2 Rated operating conditions [Go to Page]
- D.2.1 Specified measurement range for temperature
- D.2.2 Environmental class
- D.2.3 Power supply
- D.3 Construction requirements [Go to Page]
- D.3.1 General
- D.3.2 Casings
- D.3.3 Indications [Go to Page]
- D.3.3.1 General
- D.3.3.2 Electronic indicating device
- D.4 Performances [Go to Page]
- 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 [Go to Page]
- 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 [Go to Page]
- E.1 General [Go to Page]
- 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 [Go to Page]
- E.2.1 Ambient temperature during the test
- E.2.2 Test equipment used
- E.2.3 Test results
- E.3 Ambient temperature [Go to Page]
- E.3.1 Effect of dry heat [Go to Page]
- E.3.1.1 Ambient temperature during the test
- E.3.1.2 Test equipment used
- E.3.1.3 Test results
- E.3.2 Effect of cold [Go to Page]
- E.3.2.1 Ambient temperature during the test
- E.3.2.2 Test equipment used
- E.3.2.3 Test results
- E.4 Effect of damp heat, steady-state test [Go to Page]
- E.4.1 Ambient temperature during the test
- E.4.2 Test equipment used
- E.4.3 Test results [Go to Page]
- E.4.3.1 Before the application of the test
- E.4.3.2 During the application of the test
- E.4.3.3 After the application of the test
- E.5 Effect of damp heat, cyclic test [Go to Page]
- E.5.1 Ambient temperature during the test
- E.5.2 Test equipment used
- E.5.3 Test results [Go to Page]
- E.5.3.1 Before the cyclic test
- E.5.3.2 After the cyclic test
- E.6 Electrical power variation [Go to Page]
- E.6.1 AC power supply [Go to Page]
- E.6.1.1 Test equipment used
- E.6.1.2 Test results
- E.6.2 DC power supply or battery supply [Go to Page]
- E.6.2.1 Test equipment used
- E.6.2.2 Test results
- E.7 Short time power reductions [Go to Page]
- E.7.1 Test equipment used
- E.7.2 Test results [Go to Page]
- E.7.2.1 Before the application of the perturbation
- E.7.2.2 During the application of the perturbation
- E.7.2.3 Error shift calculation
- E.8 Electrical bursts [Go to Page]
- E.8.1 Test equipment used
- E.8.2 Test results [Go to Page]
- E.8.2.1 Mains power
- E.8.2.2 In/out connections
- E.9 Electromagnetic immunity [Go to Page]
- E.9.1 Test equipment used
- E.9.2 Test results [Go to Page]
- E.9.2.1 Before the application of the perturbation
- E.9.2.2 During the application of the perturbation
- E.9.2.3 Error shift calculation
- E.10 Electrostatic discharges [Go to Page]
- E.10.1 Test equipment used
- E.10.2 Test results [Go to Page]
- E.10.2.1 Before the application of the perturbation
- E.10.2.2 During the application of the perturbation
- E.10.2.3 Error shift calculation
- E.11 Effect of an overload of static pressure [Go to Page]
- E.11.1 Ambient temperature during the test
- E.11.2 Test equipment used
- E.11.3 Test results [Go to Page]
- E.11.3.1 Before the application of the perturbation
- E.11.3.2 After the application of the perturbation
- E.11.3.3 Error shift calculation
- E.12 Effect of vibrations [Go to Page]
- E.12.1 Ambient temperature during the test
- E.12.2 Test equipment used
- E.12.3 Test results [Go to Page]
- E.12.3.1 Before the application of the test
- E.12.3.2 After the application of the test
- E.13 Effect of shocks [Go to Page]
- E.13.1 Ambient temperature during the test
- E.13.2 Test equipment used
- E.13.3 Test results [Go to Page]
- E.13.3.1 Before shocks
- E.13.3.2 After the application of the perturbation
- E.13.3.3 Error shift calculation
- E.14 Mechanical resistance to overload of static pressure [Go to Page]
- E.14.1 Ambient temperature during the test
- E.14.2 Test equipment used
- E.14.3 Test results
- E.15 Durability [Go to Page]
- E.15.1 Ambient temperature during the test
- E.15.2 Test equipment used
- E.15.3 Test equipment used [Go to Page]
- E.15.3.1 Before durability
- E.15.3.2 After durability
- E.15.3.3 Error shift calculation
- E.16 Alarms operation [Go to Page]
- 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 [Go to Page]
- E.18.1 Test equipment used
- E.18.2 Test results [Go to Page]
- E.18.2.1 Before the application of the perturbation
- E.18.2.2 During the application of the perturbation
- E.18.2.3 Error shift calculation
- E.19 Surges on supply lines and/or signal lines [Go to Page]
- E.19.1 Test equipment used
- E.19.2 Test results [Go to Page]
- E.19.2.1 Before the application of the perturbation
- E.19.2.2 After the application of the perturbation
- E.19.2.3 Error shift calculation
- E.20 Power frequency magnetic field [Go to Page]
- E.20.1 Test equipment used
- E.20.2 Test results [Go to Page]
- E.20.2.1 Before the application of the perturbation
- E.20.2.2 During the application of the perturbation
- E.20.2.3 Error shift calculation
- Annex F (informative) Model type test report for associated transducers [Go to Page]
- F.1 General [Go to Page]
- 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 [Go to Page]
- F.2.1 Ambient temperature during the test
- F.2.2 Test equipment used
- F.2.3 Test results
- F.3 Ambient temperature [Go to Page]
- F.3.1 Effect of dry heat [Go to Page]
- F.3.1.1 Ambient temperature during the test
- F.3.1.2 Test equipment used
- F.3.1.3 Test results
- F.3.2 Effect of cold [Go to Page]
- F.3.2.1 Ambient temperature during the test
- F.3.2.2 Test equipment used
- F.3.2.3 Test results
- F.4 Effect of damp heat, steady-state test [Go to Page]
- F.4.1 Ambient temperature during the test
- F.4.2 Test equipment used
- F.4.3 Test results [Go to Page]
- F.4.3.1 Before the application of the test
- F.4.3.2 During the application of the test
- F.4.3.3 After the application of the test
- F.5 Effect of damp heat, cyclic test [Go to Page]
- F.5.1 Ambient temperature during the test
- F.5.2 Test equipment used
- F.5.3 Test results [Go to Page]
- F.5.3.1 Before the application of the test
- F.5.3.2 After the cyclic test
- F.6 Electrical power variation [Go to Page]
- F.6.1 AC power supply [Go to Page]
- F.6.1.1 Test equipment used
- F.6.1.2 Test results
- F.6.1.3 Variation in frequency
- F.6.2 DC power supply or battery supply [Go to Page]
- F.6.2.1 Test equipment used
- F.6.2.2 Test results
- F.7 Short time power reductions [Go to Page]
- F.7.1 Ambient temperature during the test
- F.7.2 Test equipment used
- F.7.3 Test results [Go to Page]
- F.7.3.1 Before the application of the perturbation
- F.7.3.2 During the application of the perturbation
- F.7.3.3 Error shift calculation
- F.8 Electrical bursts [Go to Page]
- F.8.1 Ambient temperature during the test
- F.8.2 Test equipment used
- F.8.3 Test results [Go to Page]
- F.8.3.1 Mains power
- F.8.3.2 In/out connections
- F.9 Electromagnetic immunity [Go to Page]
- F.9.1 Ambient temperature during the test
- F.9.2 Test equipment used
- F.9.3 Test results [Go to Page]
- F.9.3.1 Before the application of the perturbation
- F.9.3.2 During the application of the perturbation
- F.9.3.3 Error shift calculation
- F.10 Electrostatic discharges [Go to Page]
- F.10.1 Ambient temperature during the test
- F.10.2 Test equipment used
- F.10.3 Test results [Go to Page]
- F.10.3.1 Before the application of the perturbation
- F.10.3.2 During the application of the perturbation
- F.10.3.3 Error shift calculation
- F.11 Effect of an overload of static pressure [Go to Page]
- F.11.1 General
- F.11.2 Ambient temperature during the test
- F.11.3 Test equipment used
- F.11.4 Test results [Go to Page]
- F.11.4.1 Before the application of the perturbation
- F.11.4.2 After the application of the perturbation
- F.11.4.3 Error shift calculation
- F.12 Effect of vibrations [Go to Page]
- F.12.1 Ambient temperature during the test
- F.12.2 Test equipment used
- F.12.3 Test results [Go to Page]
- F.12.3.1 Before the application of the test
- F.12.3.2 After the application of the test
- F.13 Effect of shocks [Go to Page]
- F.13.1 Ambient temperature during the test
- F.13.2 Test equipment used
- F.13.3 Test results [Go to Page]
- F.13.3.1 Before shocks
- F.13.3.2 After shocks
- F.13.3.3 Error shift calculation
- F.14 Mechanical resistance to overload of static pressure [Go to Page]
- F.14.1 General
- F.14.2 Ambient temperature during the test
- F.14.3 Test equipment used
- F.14.4 Test results
- F.15 Durability [Go to Page]
- F.15.1 Ambient temperature during the test
- F.15.2 Test equipment used
- F.15.3 Test results [Go to Page]
- F.15.3.1 Before durability
- F.15.3.2 After durability
- F.15.3.3 Error shift calculation
- F.16 Repeatability
- Annex ZA(informative)Relationship between this European Standard and the Essential Requirements of EU Directive 2014/32/EU Measuring Instruments Directive [Go to Page]