IEC 61514-2000 pdf free download – Industrial-process control systems – Methods of evaluating the performance of valve positioners with pneumatic outputs.
This International Standard specifies tests designed to determine the static and dynamicperformance of single-acting or double-acting positioners. The tests may be applied topositioners which receive standard analogue input signals (as specified in lEC 60381 andIEC 60382) and have a pneumatic output.
NOTEFor positioners with pulsed or digital input signals，equivalent criteria may be applied. The methodsdescribed may not fully apply to positioners with digital controllers or positioners with pulsed outputs.
Testing may be conducted either on a positioner alone, independently of an actuator, or on apositioner mounted and connected to a specific actuator, as a combined unit.The text makesclear where different approaches are required.
The methods of evaluation given in this standard are intended for use by manufacturers todetermine the performance of their products, and by users, or independent testing establish-ments, to verify manufacturers’ performance specifications.
The closest liaison should be maintained between the evaluating body and the manufacturer.Note should be taken of the manufacturer’s specifications for the instrument when the testprogramme is being decided, and the manufacturer should be invited to comment on both thetest programme and the results.His comments on the results should be included in any reportproduced by the testing organization.
This standard is intended to provide definitions of positioner elements，actions，andcharacteristics,to specify uniform methods of measuring performance errors and effects ofinfluence quantities on those characteristics，and to describe methods of reporting andevaluating the results of the measurement data obtained.
The test conditions described in this publication (for example range of ambient temperaturesand power supply) relate to conditions which commonly arise in use. Consequently,thevalues specified shall be used where no other values are specified by the manufacturer oruser. lf other values are used, they should be stated. lt is recognized that the manufacturer’sspecifications and instructions for installation and operation should apply during all steps.
The tests specified in this standard are not necessarily sufficient for instruments specificallydesigned for unusually arduous conditions.Conversely, a reduced series of tests may serveadequately for instruments designed to perform within a more limited range of conditions.
When a full evaluation，in accordance with this standard，is not required or possible，thosetests which are required should be performed and the results reported in accordance with therelevant parts of this standard. In such cases, the test report should state that it does notcover the full number of tests specified herein.
Normative references
The following normative documents contain provisions which,through reference in this text,constitute provisions of lEC 61514.For dated references，subsequent amendments to,orrevisions of,any of these publications do not apply. However, parties to agreements based onIEC 61514 are encouraged to investigate the possibility of applying the most recent editionsof the normative documents indicated below.For undated references, the latest edition of thenormative document referred to applies. Members of lEC and ISO maintain registers ofcurrently valid International Standards.
IEC 60050(161):1990, International Electrotechnical Vocabulary (IEV) – Chapter 161:Electro-magnetic compatibility
IEC 60068-2-1:1990，Environmental testing – Part 2: Tests. Test A: ColdIEC 60068-2-2:1974，Environmental testing – Part 2 : Tests.Test B: Dry heat
lEC 60068-2-6:1995,Environmental testing – Part 2:Tests.Test Fc:Vibration (sinusoidal)IEC 60068-2-31:1969，Environmental testing – Part 2: Tests. Test Ec: Drop and topple,primarily for equipment-type specimens
IEC 60068-2-56:1988，Environmental testing – Part 2: Tests.Test Cb: Damp heat，steadystate, primarily for equipment
IEC 60381-1:1982，Analogue signals for process control systems – Part 1: Direct currentsignals
IEC 60382:1991,Analogue pneumatic signal for process control systems
IEC 60529:1989，Degree of protection provided by enclosures (IP Code)
IEC 60902:1987,Industrial-process measurement and control – Terms and definitions
IEC 61000-4-3:1995,Electromagnetic compatibility (EMC) – Part 4:Testing and measurementtechniques – Section 3: Radiated, radio-frequency electromagnetic field immunity test
IEC 61000-4-4:1995,Electromagnetic compatibility (EMC) – Part 4:Testing and measurementtechniques – Section 4: Electrical fast transient/burst immunity test
IEC 61000-4-5:1995,Electromagnetic compatibility (EMC) – Part 4:Testing and measurementtechniques – Section 5: Surge immunity test.IEC 61514 pdf download.