KROHNE Summit 8800 Vol 2 - Manual (Page 3)

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08/2013 - MA SUMMIT 8800 Vol2 R02 en
SUMMIT 8800 CONTENTS
1 About this book 13
1.1 Volumes ............................................................................................................................. 13
1.2 Content Volume 1 .............................................................................................................. 13
1.3 Content Volume 2 .............................................................................................................. 13
1.4 Content Volume 3 .............................................................................................................. 14
1.5 Information in this handbook ............................................................................................ 14
2 General Information 15
2.1 Software versions used for this guide ............................................................................... 15
2.2 Terminology and Abbreviations ......................................................................................... 15
2.3 General Controls and Conventions ................................................................................... 16
2.4 ID Data Tree ....................................................................................................................... 17
2.4.1 Type of data ..............................................................................................................................18
2.4.2 Colour codes .............................................................................................................................19
2.5 Specific Requirements for Meters and Volume Convertors ............................................. 20
2.5.1 Numbering formats ..................................................................................................................20
2.5.2 Alarms ......................................................................................................................................20
2.5.3 Accountable alarm ...................................................................................................................20
2.5.4 Optional consequences ............................................................................................................20
3 Metering principles 21
3.1 Pulse based meters: e.g. turbine/ positive displacement / rotary meter ........................ 21
3.2 Ultrasonic meters ............................................................................................................. 22
3.3 Differential pressure (dP) meters: e.g. orifice, venturi and cone meter .......................... 23
3.3.1 Orifice Plate ..............................................................................................................................25
3.3.2 Venturi nozzle ...........................................................................................................................26
3.4 Coriolis meters .................................................................................................................. 26
3.5 Meter corrections .............................................................................................................. 28
3.5.1 Gas & steam .............................................................................................................................28
3.5.2 Liquid ........................................................................................................................................28
3.6 Liquid normalisation ......................................................................................................... 29
3.6.1 Mass and energy ......................................................................................................................30
3.7 Gas normalisation ............................................................................................................. 30
3.7.1 Equation of state ......................................................................................................................31
3.7.2 Line and base density ...............................................................................................................32
3.7.3 Relative density/ specific gravity ..............................................................................................32
3.7.4 Mass and energy ......................................................................................................................32
3.7.5 Enthalpy ....................................................................................................................................32
3.8 Stream, station and batch totals ....................................................................................... 33
3.9 Run switching .................................................................................................................... 35