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VDI/VDE 2040 Blatt 5:1989-03

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Calculation principles for the measurement of fluid flow using orifice plates, nozzles and venturi tubes; uncertainties
Available format(s)

Hardcopy , PDF

Withdrawn date

14-04-2022

Language(s)

English, German - English

Published date

01-03-1989

Vorbemerkung
1 Zweck und Geltungsbereich
2 Formelzeichen und Einheiten
3 Allgemeines zur Messunsicherheit
  3.1 Definition der Messunsicherheit
  3.2 Zufällige Komponente der Messunsicherheit
  3.3 Systematische Komponente der Messunsicherheit
  3.4 Rechnerische Ermittlung der Unsicherheit aus
      der Fehlergrenze eines MeBgerätes
  3.5 Unsicherheit bei der Kalibrierung eines Messgerätes
  3.6 Addition von Unsicherheiten
4 Unsicherheiten der Grössen delta[p], rho[1], D und d
  4.1 Unsicherheit e[delta[p]] des Wirkdrucks delta[p]
  4.2 Unsicherheit e[rho[1]] der Dichte rho[1]
  4.3 Unsicherheit e[D] des Rohrdurchmessers D und
      Unsicherheit e[d] des Durchmessers d der Drosselöffnung
5 Gesamtmessunsicherheit einer Durchfluss-Messeinrichtung
  ohne Rechner bei zeitlich konstanter Strömung
  5.1 Allgemeine Gleichung für die Gesamtmessunsicherheit
  5.2 Gleichungen für die Gesamtmessunsicherheit spezieller
      Messeinrichtungen
6 Gesamtmessunsicherheit einer Durchfluss-Messeinrichtung
  mit Rechner bei zeitlich konstanter oder langsam
  veränderlicher Strömung
  6.1 Berechnung mit Berücksichtigung der Änderungen des
      Durchflusskoeffizienten C und der Expansionszahl
      epsilon
  6.2 Berechnung ohne Berücksichtigung der Änderungen des
      Durchflusskoeffizienten C und der Expansionszahl
      epsilon
7 Gesamtmessunsicherheit einer Messung mit mehreren
  Durchfluss-Messeinrichtungen
  7.1 Drosselgeräte in Reihenschaltung
  7.2 Drosselgeräte in Parallelschaltung
  7.3 Kombination von Reihen- und Parallelschaltungen
Schrifttum

Gives provisions for the calculation of the overall uncertainty e[q] of a complete flow measuring device, including the primary device and associated secondary devices, from the uncertainties of the measured, calculated or tabulated values of the individual quantities.

DocumentType
Standard
Pages
24
PublisherName
Verlag des Vereins Deutscher Ingenieure
Status
Withdrawn
Supersedes

VDI/VDE 2640 Blatt 3:1983-11 Measurement of gas flow in circular; annular or rectangular sections of conduits velocity area method
VDI/VDE 2644:2001-09 Selection and applicability of flowmeters
VDI 3986:2014-07 Determination of efficiencies of conventional power stations
VDI 2044:2002-11 Acceptance and performance tests on fans (VDI code of practice for fans)
VDI/VDE 2041:1991-04 Measurement of fluid flow with primary devices; orifice plates and nozzles for special applications
VDI/VDE 2176 Blatt 1:1971-02 Fluidic characteristic quantities of throttle valves and their determination

VDI/VDE 2620-1 : 1973 PROPAGATION OF LIMITED ERRORS IN MEASURING PRINCIPLES
VDI/VDE 2600 Blatt 5:1973-11 Terms of defining the mode of operation of measuring equipment
VDI/VDE 3512 Blatt 1:2017-03 Temperature measurement for building automation - Basic principles
VDI/VDE 2041:1991-04 Measurement of fluid flow with primary devices; orifice plates and nozzles for special applications
ISO 7066-2:1988 Assessment of uncertainty in the calibration and use of flow measurement devices — Part 2: Non-linear calibration relationships
ISO 5168:2005 Measurement of fluid flow — Procedures for the evaluation of uncertainties
DIN IEC 60770:1986-03 METHODS OF EVALUATING THE PERFORMANCE OF TRANSMITTERS FOR USE IN INDUSTRIAL PROCESS CONTROL SYSTEMS
DIN 1952:1982-07 MEASUREMENT OF FLUID FLOW BY MEANS OF ORIFICE PLATES, NOZZLES AND VENTURI TUBES INSERTED IN CIRCULAR CROSS SECTION CONDUITS RUNNING FULL (VDI RULES FOR MEASUREMENT OF FLUID)
VDI/VDE 2600 Blatt 3:1973-11 Terms relating to instrument technology
VDI/VDE 2600 Blatt 2:1973-11 Fundamental terms
VDI/VDE 2600 Blatt 6:1973-11 Designation of measuring equipment
VDI/VDE 2600 Blatt 1:2013-10 Inspection process management - Identification, classification and proof of suitability for inspection processes
VDI/VDE 2600 Blatt 4:1973-11 Terms describing the characterstics of measuring equipment
ISO/TR 7066-1:1997 Assessment of uncertainty in calibration and use of flow measurement devices — Part 1: Linear calibration relationships
VDI/VDE 2620 Blatt 2:1974-07 Propagation of error limits in measurements; examples on the propagation of errors and error limits
VDE/VDI 3512-2 : 1972 MEASURING ARRANGEMENTS FOR TEMPERATURE MEASUREMENTS

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