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ČSN EN 12405-3 (257865)
Gas meters - Conversion devices - Part 3: Flow computer
Translate name
STANDARD published on 1.6.2016
The information about the standard:
Designation standards: ČSN EN 12405-3
Classification mark: 257865
Catalog number: 99523
Publication date standards: 1.6.2016
SKU: NS-639577
The number of pages: 80
Approximate weight : 240 g (0.53 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN 12405-3 (257865):
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
Preview of the standard ČSN EN 12405-3 (257865)
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