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BS ISO 7278-3:1998

BS ISO 7278-3:1998

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Current

The latest, up-to-date edition.

Liquid hydrocarbons. Dynamic measurement. Proving systems for volumetric meters Pulse interpolation techniques

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

08-15-1998

Publisher

British Standards Institution

1 Scope
2 Normative reference
3 Definitions
4 Principles
    4.1 General
    4.2 Double-timing method
    4.3 Quadruple-timing method
    4.4 Phase-locked-loop method
5 Conditions of use
    5.1 General
    5.2 Double-timing method
    5.3 Quadruple-timing method
    5.4 Phase-locked-loop method
6 Method requirements
7 Tests for pulse interpolation system
    7.1 General
    7.2 Test circuit
    7.3 Test schedule
    7.4 Immunity from electrical noise
8 Test report and markings
Annex A (normative) Measurement techniques for determining
pulse intervals
Annex B (informative) Bibliography

Three methods commonly used in conjunction with pipe provers and turbine or displacement meters. Test procedures for checking satisfactory operation.

This part of ISO7278 gives guidance on the procedures and conditions of use to be observed if pulse interpolation is used in conjunction with a pipe or small volume prover and a turbine or displacement meter to improve the discrimination of proving.

This part of ISO7278 describes the three methods of pulse interpolation most commonly used and their conditions of use. It also describes the equipment and test procedures for checking that the pulse interpolation system is operating satisfactorily and it describes some methods of measuring the irregularity of pulse spacing for a meter.

Committee
PTI/12
DevelopmentNote
Supersedes 95/120225 DC and BS 6866-3(1987). (07/2005)
DocumentType
Standard
Pages
20
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 7278-3:1998 Identical

ISO 7278-2:1988 Liquid hydrocarbons — Dynamic measurement — Proving systems for volumetric meters — Part 2: Pipe provers
ISO 2715:1981 Liquid hydrocarbons Volumetric measurement by turbine meter systems
ISO 2714:1980 Liquid hydrocarbons Volumetric measurement by displacement meter systems other than dispensing pumps
ISO 4267-2:1988 Petroleum and liquid petroleum products — Calculation of oil quantities — Part 2: Dynamic measurement
ISO 6551:1982 Petroleum liquids and gases Fidelity and security of dynamic measurement Cabled transmission of electric and/or electronic pulsed data

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Hardcopy - English
PDF - English
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