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BS EN ISO 20456:2019
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Measurement of fluid flow in closed conduits. Guidance for the use of electromagnetic flowmeters for conductive liquids
封闭管道中流体流量的测量 导电液体电磁流量计使用指南
本文件适用于用于测量流量的工业电磁流量计
在一个封闭的管道中充满导电液体。它涵盖了两种流量计类型
交流(AC)和脉冲直流(DC)电路,用于驱动磁场线圈和仪表
由主电源供电,或由电池或其他电源供电。
本文件不适用于设计的插入式流量计或电磁流量计
在部分满水的明渠或管道中工作,也不适用于测量
磁渗透泥浆或液态金属应用。
本文件未规定与危险环境使用相关的安全要求
流量计。交叉引用:ISO 7194OIML R 75-2ISO 4006ISO 8316OIML R49-1ISO 4064-3ISO 4064-4ISO/IEC指南98-1ISO 4064-1ISO 7005-1ISO R49-3IEC 60068-2-27IEC 60381-2OILR 75-1IEC 60359ISO 5168ISO/IEC指南98-
3OIML R 75-3VIMISO 4064-5IEC 60381-1GUM:1995ISO 4185:1980/COR 1:1993EN 14154-2:2005+A2:2011EN 14154-3:2005+A2:2011EN 14154-1:2005+A2:2011IML R49-2IEC 60068-2-78IEC 60068-2-6IEC 60529OIML R117-1IEC 60068-2-67ISO/IEC指南99ISO 7066-1IML R117-3ISO 6316OIML R117-2ISO 4185ISO 4064-2购买时提供的所有现行修订版均包含在本文件中。
This document applies to industrial electromagnetic flowmeters used for the measurement of flowrate
of a conductive liquid in a closed conduit running full. It covers flowmeter types utilizing both
alternating current (AC) and pulsed direct current (DC) circuits to drive the field coils and meters
running from a mains power supply and those operating from batteries or other sources of power.
This document is not applicable to insertion-type flowmeters or electromagnetic flowmeters designed
to work in open channels or pipes running partially full, nor does it apply to the measurement of
magnetically permeable slurries or liquid metal applications.
This document does not specify safety requirements in relation to hazardous environmental usage of
the flowmeter.Cross References:ISO 7194OIML R 75-2ISO 4006ISO 8316OIML R49-1ISO 4064-3ISO 4064-4ISO/IEC Guide 98-1ISO 4064-1ISO 7005-1OIML R49-3IEC 60068-2-27IEC 60381-2OIMLR 75-1IEC 60359ISO 5168ISO/IEC Guide 98-3OIML R 75-3VIMISO 4064-5IEC 60381-1GUM:1995ISO 4185:1980/COR 1:1993EN 14154-2:2005+A2:2011EN 14154-3:2005+A2:2011EN 14154-1:2005+A2:2011OIML R49-2IEC 60068-2-78IEC 60068-2-6IEC 60529OIML R117-1IEC 60068-2-67ISO/IEC Guide 99ISO 7066-1OIML R117-3ISO 6316OIML R117-2ISO 4185ISO 4064-2All current amendments available at time of purchase are included with the purchase of this document.