Norm

NEN-EN 12405-3:2013 Ontw. en

Gasmeters - Herleidingsinstrumenten - Deel 3: Debietcomputer

  • Deze norm is ingetrokken sinds 16-12-2015

46,90

Over deze norm

Status Ingetrokken
Aantal pagina's 82
Commissie Debiet- en hoeveelheidsmeting
Gepubliceerd op 01-12-2013
Taal Engels
prEN 12405-3 specifies the requirements and tests for the construction, performance, safety and conformity of flow computers used to meet the metrological and technical requirements of a high accuracy volume conversion device. They are used to determine volume of fuel gases, including those of the first and second families according to EN 437. For the purpose of this standard, only flow computers that are intended to operate with ultrasonic meters according to ISO 17089-1 or gas turbine meters conforming to EN 12261 are considered. For the purpose of this standard only classification classes E2 and M1 are considered for the flow computer (FC). FCs shall be equipped with external separate transducers for pressure and temperature which may be approved separately. The provisions concerning pressure and temperature transducers are given in Annex B and C. Requirements and tests are given for energy calculator in EN 12405-2.

Details

ICS-code 91.140.40
Nederlandse titel Gasmeters - Herleidingsinstrumenten - Deel 3: Debietcomputer
Engelse titel Gas meters - Conversion devices - Part 3: Flow computer
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