流量计选型资料样本.pdf

《流量计选型资料样本.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、响泰仪表智能电磁流量仪表第1页共79页响泰仪表目录一、概述···································································3（一）、工作原理··························································3（二）、应用领域··························································2二、电磁流量计如何正确选型····················

2、·····························4(一)、可测量的流体······················································4（二）、传感器口径和流速与测量精度的关系··································4（三）、流量计口径与流量范围的对照表······································4（四）、电极、接地环材料的选择··········································

3、··5（五）、内衬材料选择说明··················································5（六）、外壳防防等级的选择················································6(七）、附加功能的选择····················································6（八）、防爆结构类型与级别的选择·········································6三、如何选择安装点·····

4、···················································6（一）、安装地点的选择····················································6（二）、安装要求·························································7四、流量计的接线···························································7五、主要技术性能指标····

5、···················································8六、方型转换器外观及安装尺寸··············································10七、流量计的外型尺寸······················································11八、卫生型电磁流量计的使用和选型··········································12九、插入式电磁流量计技术性能指标及安装·····

6、·······························12（一）、插入式电磁流量计主要技术性能指标··································13（二）、插入式电磁流量计安装··············································13十、电磁流量计选型························································14第2页共79页响泰仪表XTG系列智能电磁流量计是我公司采用国内外最先进技术研制开发的全智能型

7、电磁流量计，其全中文电磁转换器内核采用高速中央处理器。计算速度非常快、精度高、测量性能可靠。转换器电路设计采用国际先进技术，输入阻抗高达1015欧姆，共模抑制比优于100db，对于外来干扰以及60Hz/50Hz干扰抑制能力优于90db,可以测量更低的电导率的流体介质流量。其传感器采用非均匀磁场技术及特殊的磁路结构，磁场稳定可靠，而且大的缩小了体积，减轻了重复，使流量计小型流量化的特点。使客户“买的放心，用的省心，服务称心”是我公司的宗旨。一、概述（一）、工作原理电流量计测量原理是基于法拉第电磁感应定律。流量计的测量管是一内

8、衬绝缘材料的非导磁合金短管。两只电极沿管径方向穿通管壁固定在测量管上。其电极头与衬里内表面基本齐平。励磁线圈由双方波脉冲励磁时，将在与测量管轴线垂直的方向上产生一磁通量密度为B的工作磁场。此时，如果具有一定电导率的流体流经测量管。将切割磁力线感应出电动势E。电动势E正比于磁通量密度B，测量管内径d与平均