1、 NOTICE OF COPYRIGHT This is a copyright document and may not be copied or distributed in any form or manner without the permission of ISA. This copy of the document was made for the sole use of the person to whom ISA provided it and is subject to the restrictions stated in ISAs license to that pers
2、on. It may not be provided to any other person in print, electronic, or any other form. Violations of ISAs copyright will be prosecuted to the fullest extent of the law and may result in substantial civil and criminal penalties. AMERICAN NATIONAL STANDARD ANSI/ISA-75.26.01-2006 Control Valve Diagnos
3、tic Data Acquisition and Reporting Approved 22 March 2006 ANSI/ISA-75.26.01-2006 Control Valve Diagnostic Data Acquisition and Reporting ISBN: 978-1-55617-989-1 Copyright 2006 by ISA. All rights reserved. Not for resale. Printed in the United States of America. No part of this publication may be rep
4、roduced, stored in a retrieval system, or transmitted in any form or by any means (electronic mechanical, photocopying, recording, or otherwise), without the prior written permission of the Publisher. ISA 67 Alexander Drive P.O. Box 12277 Research Triangle Park, North Carolina 27709 - 3 - ANSI/ISA-7
5、5.26.01-2006 Preface This preface, as well as all footnotes and annexes, is included for information purposes and is not part of ANSI/ISA-75.26.01-2006. This document has been prepared as part of the service of ISA toward a goal of uniformity in the field of instrumentation. To be of real value, thi
6、s document should not be static but should be subject to periodic review. Toward this end, the Society welcomes all comments and criticisms and asks that they be addressed to the Secretary, Standards and Practices Board; ISA; 67 Alexander Drive; P. O. Box 12277; Research Triangle Park, NC 27709; Tel
7、ephone (919) 549-8411; Fax (919) 549-8288; E-mail: standardsisa.org. The ISA Standards and Practices Department is aware of the growing need for attention to the metric system of units in general, and the International System of Units (SI) in particular, in the preparation of instrumentation standar
8、ds. The Department is further aware of the benefits to USA users of ISA standards of incorporating suitable references to the SI (and the metric system) in their business and professional dealings with other countries. Toward this end, this Department will endeavor to introduce SI-acceptable metric
9、units in all new and revised standards, recommended practices, and technical reports to the greatest extent possible. Standard for Use of the International System of Units (SI): The Modern Metric System, published by the American Society for Testing see Figures a, b and c below) Typical examples: Tr
10、ansducerOutputControl Signal 0% 100% 100% TravelControl Signal 0% 100% 100% electronic control signal (e.g., 4-20mA) control signal (e.g., 4-20 mA , digital command, pneumatic) pneumatic control signal I/p Pos. (a) (b) (c) - 17 - ANSI/ISA-75.26.01-2006 Valve position versus actuator pressure(s) sign
11、ature 1) Vertical axis - travel 2) Horizontal axis - actuator input pressure(s) 3) Must specify if control signal or actuator pressure was varied to generate the signature. c) Supply pressure versus control signal signature 1) Vertical axis - supply pressure 2) Horizontal axis - control signal 5.4 T
12、abulated data The following data will be provided in an electronic comma delimited format that is compatible with spreadsheet programs (such as Microsoft Excel). a) Data point number b) Input signal c) Control signal d) Actuator pressure TravelActuator Pressure 0% 100% 100% Supply Pressure Control S
13、ignal 0% 100% 100% ANSI/ISA-75.26.01-2006 - 18 - e) Travel position f) Ramp time (if available) g) Pause time (if available) h) Supply pressure 5.5 Sample file format Filename:,Sample.csv,Date Created:,24 Mar 2004 Tag Header Date and time of test, 24 Mar 2004 04:20:14 pm Owner of Valve, John Doe Ent
14、erprises (Some lines skipped here) Rated Valve Travel, 7.5,in Actual Valve Travel, 7.6,in Model Number,Mark One (Some lines skipped here) Data Header Ramp Time, 10, sec Pause Time, 20,sec Point No., Input Signal, Control Signal, Actuator p1, Actuator p2, Travel, Supply Pressure (NA), (psig), (psig),
15、 (psig), (psig), (in), (psig) (NA),(+/-0.2), (+/-0.08), (+/-0.1), (+/-0.2), (+/-0.005), (+/-0.5) Data 1, 3.0,3.2,50.0,45.0,0.000,80.0 (Some lines skipped here) 101,16.1,16.2,47.0,44.0,4.500,79.0 6 Quality 6.1 All portable data acquisition devices will be calibrated as required by a quality system th
16、at is acceptable to the valve owner or operator. 6.2 Valve mounted data acquisition devices must be mounted, calibrated, and tuned to manufacturer specifications to yield accurate valve data. 7 Resolution of measured data The following are minimum resolution requirements. Some diagnostic data analys
17、is may require greater resolution. Manufacturer specifications may be consulted to determine the actual resolution of the data reported. 7.1 Pressure measurements must be reported to 0.1psi. 7.2 Linear travel must be reported to 0.001 in. 7.3 Rotary valve travel must be reported to 0.1 deg. 7.4 Cont
18、rol signal reporting must be reported to 1% of full span. 7.5 Time must be reported to 1% of total time. Developing and promulgating sound consensus standards, recommended practices, and technical reports is one of ISAs primary goals. To achieve this goal the Standards and Practices Department relie
19、s on the technical expertise and efforts of volunteer committee members, chairmen and reviewers. ISA is an American National Standards Institute (ANSI) accredited organization. ISA administers United States Technical Advisory Groups (USTAGs) and provides secretariat support for International Electro
20、technical Commission (IEC) and International Organization for Standardization (ISO) committees that develop process measurement and control standards. To obtain additional information on the Societys standards program, please write: ISA Attn: Standards Department 67 Alexander Drive P.O. Box 12277 Research Triangle Park, NC 27709 ISBN: 978-1-55617-989-1
