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BS EN IEC 62828-5:2020

BS EN IEC 62828-5:2020

$167.15

Reference conditions and procedures for testing industrial and process measurement transmitters – Specific procedures for flow transmitters

Published By Publication Date Number of Pages
BSI 2020 40
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This part of IEC 62828 establishes specific procedures for testing flow transmitters used in measuring and control systems for industrial process and for machinery control systems. For general test procedures, reference is to be made to IEC 62828-1:2017, applicable to all types of industrial and process measurement transmitters.

This document ā€“ together with IEC 62828-1:2017 ā€“ is the reference standard for testing every type of flow transmitter, not only for liquids but also for gases and for steam.

In this document, “industrial flow transmitters” consistently covers all types of flow transmitters used in measuring and control systems for industrial process and for machinery.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 INTRODUCTION
12 1 Scope
2 Normative references
3 Terms and definitions
3.1 Terms related to the flow transmitters
14 3.2 Terms related to the flow velocity
15 3.3 Reference to the IEC common data dictionary (CDD)
4 General description of the device
4.1 General
4.2 Differential pressure flowmeters
4.3 Velocity flowmeters
4.4 Volumetric flowmeters
16 4.5 Mass flowmeters
5 Reference test conditions and service conditions
6 Test procedures
6.1 General
6.2 Tests at standard and operating reference test conditions
6.2.1 General requirements
17 6.2.2 Requirements with different test fluids
Tables
Table 1 ā€“ Stability requirements during the measurement
19 6.2.3 Accuracy and related factors
25 6.2.4 Dynamic behaviour
6.2.5 Static behaviour
27 6.3 Type tests at operating test conditions
6.4 Routine test
6.5 Acceptance, integration and maintenance tests for flow transmitters
7 Documentation
7.1 Documentation of the test results
7.2 Determination of the total probable error (TPE)
Table 2 ā€“ Reference conditions for TPE determination
28 7.3 Examples for the estimation of the TPE of flow transmitters
29 Annex A (normative)Summary of the tests
Table A.1 ā€“ Overview of the required tests for different measurement principles
30 Annex B (normative)Calibration of flow transmitters and calibration report
31 Annex C (informative)Information on calibration of flow transmitters and calibration report
C.1 General
C.2 Calibration methods
C.2.1 Gravimetric
C.2.2 Volumetric
C.2.3 Master meter
32 C.3 Calibration procedure
C.3.1 Setup before calibration run
Figures
Figure C.1 ā€“ Example of calibration methods
33 C.3.2 Calibration run
C.3.3 After calibration run
C.4 Guideline for choosing appropriate rates
34 Figure C.2 ā€“ Example of the calibration/test flow
35 Annex D (informative)Relationship between typical flow transmitter and normative references
Table D.1 ā€“ Relationship between typical flow transmitter and normative references
36 Annex E (informative)Cautions and notes for the acceptance tests on the site or at the factory
E.1 General
E.2 Cautions and notes
E.2.1 Power supply for flow transmitters, pump and the flow generating unit
E.2.2 Flow condition
E.2.3 Temperature of the measurand
E.2.4 Material selection
37 E.2.5 Accuracy comparing with the other value
38 Bibliography

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BS EN IEC 62828-5:2020
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