电磁流量计修改累计量

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1.智能型电磁流量计测堵管在任何时刻必须完全注满介质，不能在不满管或空管的情况下正常工作。在介质不满管时，可采用抬高流量计后端出水管高度的方法使介质满管，避免不满管及气体附着在电极上。
2.管道内有真空会损坏流量计的内衬，需特别注意。
3.流动的正方向应与流量计上箭头所指的正方向一致。
4.智能型电磁流量计即可在直管道上安装，也可以在水平或倾斜管道上安装，但要求二电极的中心连线处于水平状态。
5.对于液、固两相流体，好采用垂直安装，使被测介质自上而下流动，可使流量计衬里磨损均匀，延长使用寿命。
6.流量计在管道法兰附近确保有足够的空间，以便安装和维护。
(电磁流量计修改累计量)

ics17.120.10N12中华人民共和国国家标准GB/T18659-2002idtISO91041991封闭管道中导电液体流量的测量电磁流量计的性能评定方法Measurementoffluidflowinclosedconduits-Methodsofevaluatingtheperformanceofelectromagneticflow-metersforliquids2002一02一22发布2002一08一01实施中华人民共和国国家质量监督检验检疫总局发布www.bzfxw.comGB/T18659-2002目次前言····························，··。·······························，···········································tISO前言·········。···········。·································。··············································I引言··········。·············。········。·····················”····················································。?m1范围·············。···································。·······················································12引用标准············。·························。····························································13定义········································。。··················。··············。·····························24基本试验程序····································。······················································24.1一般要求·。························································································、····34.2安装·····。······················。·········································································34.3试验液体···················。·························································。·················44.4试验环境条件······················································。··································44.5试验期间正常校准条件······························································‘二‘·····54.6信号输出·，·。······················································································、····54.7零位校核···················································································。······、····54.8其他条件··················································。。·············。····························54.9流量计的校准要求和方法·······················。·············································55影响量影响的评定····································。······························，·····················一65.1概述········。··········“···································。··································。·······65.2内部影响·······························································································65.3外部影响························。····，····。·····，································。···················106其他影响量影响的评定试验·······························。···········································146.1磁场········，···························································································146.2输出负载阻抗····················································。·················

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