EN ISO 20456:2019
封闭管道中流体流量的测量.导电液体电磁流量计的使用指南

Measurement of fluid flow in closed conduits - Guidance for the use of electromagnetic flowmeters for conductive liquids (ISO 20456:2017)

2020-04

EN ISO 20456:2019 发布历史

ISO 20456:2017 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. ISO 20456:2017 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. ISO 20456:2017 does not specify safety requirements in relation to hazardous environmental usage of the flowmeter.

EN ISO 20456:2019由欧洲标准化委员会 IX-CEN 发布于 2019-10-16,并于 2020-01-31 实施,于 2020-04-30 废止。

EN ISO 20456:2019在国际标准分类中归属于: 17.120.10 封闭管道中流量的测量。

EN ISO 20456:2019的历代版本如下:

  • 2019年 EN ISO 20456:2019 封闭管道中流体流量的测量.导电液体电磁流量计的使用指南

 

 

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标准号
EN ISO 20456:2019
发布
2019年
发布单位
欧洲标准化委员会
当前最新
EN ISO 20456:2019
 
 
适用范围
ISO 20456:2017 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. ISO 20456:2017 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. ISO 20456:2017 does not specify safety requirements in relation to hazardous environmental usage of the flowmeter.

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