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  • BSI
    BS EN 12405-3:2015 Gas meters. Conversion devices - Flow computer
    Edition: 2015
    $538.63
    / user per year

Description of BS EN 12405-3:2015 2015

Part 3 of this European Standard specifies the requirements and tests for the construction, performance, safety and conformity of flow computers (FCs) 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 European 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 European Standard only classification classes E2 and M1 are considered for the flow computer calculator.

FCs are 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 .



Standard NumberBS EN 12405-3:2015
TitleGas meters. Conversion devices - Flow computer
StatusConfirmed
Publication Date2015-12-31
Identical National Standard OfEN 12405-3:2015
DescriptorsMarking, Transducers, Gas-supply meters, Electronically-operated devices, Conversion, Electronic equipment and components, Direct energy conversion, Volume, Installation, Type testing, Testing
ICS91.140.40 Gas supply systems
CommitteeGSE/25
ISBN978 0 580 84180 4
PublisherBSI
Pages82

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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