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IEC 61207-2
Edition 2.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Expression of performance of gas analyzers –
Part 2: Measuring oxygen in gas utilizing high-temperature electrochemical
sensors
Expression des qualités de fonctionnement des analyseurs de gaz –
Partie 2: Mesure de l'oxygène contenu dans le gaz en utilisant des capteurs
électrochimiques à haute température
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IEC 61207-2
Edition 2.0 2019-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Expression of performance of gas analyzers –
Part 2: Measuring oxygen in gas utilizing high-temperature electrochemical
sensors
Expression des qualités de fonctionnement des analyseurs de gaz –
Partie 2: Mesure de l'oxygène contenu dans le gaz en utilisant des capteurs
électrochimiques à haute température
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 71.040.20; 71.040.40 ISBN 978-2-8322-7045-5
– 2 – IEC 61207-2:2019 © IEC 2019
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, and concepts . 6
3.1 Terms and definitions . 6
3.2 Concepts . 7
3.2.1 High-temperature electrochemical sensor . 7
3.2.2 Reference gas . 10
3.2.3 In situ analyzer . 10
3.2.4 Extractive analyzer . 11
3.2.5 Hazardous area . 11
3.2.6 Flame trap . 11
3.2.7 Essential ancillary units . 11
4 Procedures for specification . 11
4.1 General . 11
4.2 Specification of essential units and ancillary services . 11
4.2.1 General . 11
4.2.2 Rated range of reference gas pressure . 11
4.2.3 Rated range of calibration gas pressure. 12
4.2.4 Rated range of aspirator gas pressure . 12
4.3 Additional terms related to the specification of performance . 12
4.4 Important terms related to the specification of performance . 12
4.4.1 General . 12
4.4.2 Rated range of sample gas temperature . 12
4.4.3 Rated range of sample gas pressure . 12
4.4.4 Rated range of interfering components . 12
5 Procedures for compliance testing . 13
5.1 General . 13
5.2 Testing procedures . 14
5.3 Output fluctuation . 14
5.4 Delay time, rise time and fall time . 15
Bibliography . 21
Figure 1 – Flow through tube sensor . 15
Figure 2 – Test tube sensor . 16
Figure 3 – Disc sensor . 16
Figure 4 – Twin chamber design . 16
Figure 5 – Sealed reference design . 17
Figure 6 – Limiting current design . 17
Figure 7 – Fixed volume design . 18
Figure 8 – General test arrangement: In situ analyzer . 19
Figure 9 – General test arrangement: Extractive analyzer . 20
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
EXPRESSION OF PERFORMANCE OF GAS ANALYZERS –
Part 2: Measuring oxygen in gas
utilizing high-temperature electrochemical sensors
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