红旗电磁流量计怎么样

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3采用低频矩形波励磁，抗干扰性能好，零点稳定;
4仪表指示不受被测介质压力、温度、粘度、密度等物理参数变化的影响;
5仪表反应灵敏，输出信号与流量成线性关系，量程比宽;
6由于被测介质只与测量管内衬里和电极接触，容易满足防腐、耐磨损等要求;
7成套仪表功耗小，（配LDZ-4B<30VA;配LDZ-6<20VA;配LDZ-7<20VA），与传感器的口
径大小无关;
8安装、使用、维护方便;
9可提供防爆型（口径φ25-φ200），防爆标志ExdmiaBT4。
上海光华/LDY-10S/LDY-15S/LDY-20S/LDY-25S/LDY-32S/LDY-40S/LDY-50S/LDY-65S电磁流量计
上海光华/LDY-80S/LDY-100S/LDY-125S/LDY-150S电磁流量计
(红旗电磁流量计怎么样)

ics17.120.10 N12 中华人民共和国国家标准 GB/T18659-2002 idtISO9104:1991 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- Methodsofevaluatingtheperformanceof electromagneticflow-metersforliquids 2002一02一22发布2002一08一01实施 中华人民共和国发布 国家质量监督检验检疫总局 GB/T18659-2002 目次 前言····························，··。·······························，···········································……t ISO前言·········。···········。·································。··············································……I 引言··········。·············。········。·····················”····················································。…m 1范围·············。···································。·······················································……1 2引用标准············。·························。····························································……1 3定义········································。。··················。··············。·····························……2 4基本试验程序····································。······················································……2 4.1一般要求·。························································································、····……3 4.2安装·····。······················。·········································································……3 4.3试验液体···················。·························································。·················……4 4.4试验环境条件······················································。··································……4 4.5试验期间正常校准条件··················································
(红旗电磁流量计怎么样)

(红旗电磁流量计怎么样)

1、极好的耐磨机能
2、耐酸、碱机能差
测中性强磨损的煤浆、泥浆和矿浆
五、聚四氟乙烯（PTFE）
1、耐沸腾的盐酸、硫酸、硝酸、王水、浓碱和各类有机溶剂
2、耐磨机能好，粘接机能差
-80～+180℃；
测浓度、浓碱强腐蚀性溶液及卫生类介量
应用现场选型
1.理解工艺参数
（1）理解被测液体名称（由用户供给）
（2）理解被测液体的大流量、常用流量、小流量（由用户供给）
（3）理解工艺管径（由用户供给）
（4）理解介量温度（由用户供给）
（5）理解介量压力（由用户供给）
（6）理解被测流体的电导率（由用户供给）
（7）理解能否有负压情况存正在（由用户供给）
(红旗电磁流量计怎么样)

3.3、测量重复性的不确定度测量重复性引入的不确定度可以采用多次测量获得，采用A类评定方法评定。确定3个校准流量点，每个流量点校准10次，校准结果如表1。取校准点80%处求得10个示值误差，可得：，应用下式所示的贝塞尔公式，计算单次实验标准偏差
式中：Eij为第i流量点第j次的示值误差；Ei为第i流量点的平均示值误差。分别将其它校准点各次流量计示值误差值该标准偏差可求得其它校准点的实验标准偏差。由于在实际校准时，各校准点的校准结果取10次测量的平均值，故，算术平均值的实验标准偏差为：
。计算求得各校准点的单次及算术平均值的实验标准偏差如表2所示。为了减少风险，取***大实验标准差作为测量重复性的标准不确定度，则：
(红旗电磁流量计怎么样)

E+H电磁流量计50W系列优点Promag系列流量计可以在多种不同的过程条件下进行高精度测量，是一种经济的流量测量解决方案Proline系列变送器具有下列优点:采用模块化结构设计和操作方法，变送器具有更高的测量效率高可靠性和高测量稳定性统一的操作模式Promag系列传感器经过多次试验和测试，具有下列优点：无压损抗振性强安装和调试简便E+H电磁流量计50W系列应用领域电磁流量计可以进行液体双向流量测量，液体的最小电导率≥5μS/cm饮用水污水污泥流量测量可达110000m3/h(484315gal/min)流体温度可达+80°C(176°F)过程压力可达40bar(580psi)装配长度符合DVGW/ISO标准专用测量管内衬采用聚氨酯或硬橡胶材料，通?000118588现ぃ篕TWWRASNSFACS防爆认证:ATEXIECExFMCSANEPSI与过程控制系统的连接接口:HARTPROFIBUSDP/PAFF基金会现场总线MODBUSRS485E+H电磁流量计53W系列优点Promag系列流量计可以在多种不同的过程条件下进行高精度测量，是一种经济的流量测量解决

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