ANSI AWWA C751-2016 Magnetic Inductive Flowmeters (First Edition).pdf

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1、AWWA Standard SM Magnetic Inductive Flowmeters Effective date: July 1, 2016. This first edition approved by AWWA Board of Directors Jan. 16, 2016. Approved by American National Standards Institute Dec. 23, 2015. ANSI/AWWA C751-16 (First Edition) Copyright 2016 American Water Works Association. All R

2、ights Reserved.ii AWWA Standard This document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifications. The AWWA standa

3、rds usually contain options that must be evaluated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA pub- lication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, cert

4、ify, or approve any product. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or code of any governmental authority. AWWA standards are intended to represent a consensus of the water supply industry

5、that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the Official Notice section of Journal American Water Works Association. The action becomes effective on the first day of the m

6、onth following the month of Journal American Water Works Association publication of the official notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide t

7、o aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has ap - proved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not co

8、nforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encour - aged to state on their own responsibility in advertising and promotional

9、materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution n oti Ce : The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completion of the ANSI approval process. This American

10、 National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current information on all standards by

11、 calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; 212.642.4900; or emailing infoansi.org. ISBN-13, print: 978-1-62576-158-3 eISBN-13, electronic: 978-1-61300-378-7DOI: http:/dx.doi.org/10.12999/AWWA.C751.16 All rights reserved. No p

12、art of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of brief excerpts or quotations for review purposes, without the written permission of the publis

13、her. Copyright 2016 by American Water Works Association Printed in USA hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports ongoing product development. Unauthorized distribution, either electronic or photocopied, is illegal and hinders AWWAs missio

14、n to support the water community. This AWWA content is the product of thousands of Copyright 2016 American Water Works Association. All Rights Reserved.iii Committee Personnel The AWWA Subcommittee on Magnetic Inductive Flowmeters, which developed this standard, had the following personnel at the ti

15、me: Michael J. Keilty, Chair S. Carpenter, San Diego County Water Authority, Escondido, Calif. (AWWA) A. Dabak, Texas Instruments, Dallas, Texas (AWWA) G.H. De Jarlais, Badger Meter, Milwaukee, Wis. (AWWA) W.F. Dunnill, Consolidated Utility District of Rutherford County, Murfreesboro, Tenn. (AWWA) D

16、. Faber, Faber write to the department at 6666 West Quincy Avenue, Denver, CO 80235-3098; or email at standardsawwa.org. Copyright 2016 American Water Works Association. All Rights Reserved.This page intentionally blank. Copyright 2016 American Water Works Association. All Rights Reserved.1 AWWA Sta

17、ndard ANSI/AWWA C751-16 (First Edition) Magnetic Inductive Flowmeters SECTION 1: GENERAL Sec. 1.1 Scope Magnetic inductive flowmeters or electromagnetic flowmeters are commonly called magmeters. The flowmeter referenced in this standard will be called a mag- meter or magnetic flowmeter interchangeab

18、ly. Magmeters are available in wafer style and threaded and flanged-end connection designs. These spool/tube design flow - meters are most commonly used in the water industry. This standard will focus on magmeters of this design. This document does not discuss nor does it apply to the insertion type

19、 of mag- meter. An insertion type is available for installation in large-size pipe. A separate standard, or the inclusion in this standard, for the insertion type of magmeters may be developed at a later date by the AWWA Standards Committee on Rate Type Flowmeters. This document does not address specific issues where a magmeter would be used in revenue service. Sec. 1.2 Purpose The purpose of this document is to review magnetic inductive flowmeter (magmeter) principles of operation, calibration, and selection. Copyright 2016 American Water Works Association. All Rights Reserved.

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