E+H电磁流量计*

E+H电磁流量计*，正确地选用电磁流量计是保证用好电磁流量计的前提条件。选用什么种类的电磁流量计应根据被测流体介质的物理性质和化学性质来决定，使电磁流量计的通径，流量范围，衬里材料，电极材料和输出电流等，都能适应被测流体的性质和性质和流量的要求。可测量的流体:由电磁流量计的工作原理可知，能选用电磁流量计测量流量的流体必须是导电的，严格的说，除了高温流体之外，只要电导率大于5μ/cm的任何流体都选用相应的电磁流量计来测量流量，因此不导电的气体，蒸汽，油类，丙酮等物质不能选用电磁流量计来测量流量。传感器口径的确定:流量计使用流速在0.3-15m/s范围内，此时流量计口径可选择与用户管道口径*。使用流速低于0.3m/s时在仪表部位局部提高流速，采用缩管方式：异径管的中心锥角不大于15oC时，可把异径管视为直管段的一部分。一体型或分离型的选择:一体型：现场环境较好的情况下，一般都选用一体型，即传感器和转换器组装成一体。
E+H电磁流量计*，E+H电磁流量计的优势及*卖点：
1.传感器zui重要的部件－线圈作*化的设计，并通过zui严格的实流试验，切实保证产品的测量精度
2.E+H电磁流量计的信号电极作*的静电屏蔽处理，保证小信号不会受线圈的干扰，保证低流速的测量精度
3.E+H电磁流量计的线圈与外界作隔离处理，保证线圈长期的绝缘强度，也就保证传感器的长期测量精度
4.传感器所有的焊接工艺都采用氩弧焊工艺，虽然成本较高，但能保证焊接的可靠性（焊接是传感器的zui主要的生产工艺），特别是安装线圈后的zui后一道焊接工序，用氩弧焊工艺能保证已安装的线圈不被损伤
5.E+H电磁流量计采用接地电极结构，形成一个平衡电极平面，保证整个测量平均速度的过程都被限制在平衡电极平面之内进行，能很好的消除电气噪声干扰，提供精确的测量结果
6.采用定制的双层屏蔽电缆
7.可编程频率低频矩形波励磁，提高了流量测量的稳定性，功率损耗低
8.特殊介质测量（如浆液）采用高频励磁，消除杂波干扰
9.采用16位嵌入式微处理器，运算速度快，精度高
10.全数字处理，抗干扰能力强，测量可靠，精度高
11.超低EMI开关电源，适用电源电压变化范围大，抗EMC性能好
12.用单块电路板完成所有功能设计，采用SMD器件和表面帖装SMT）技术，电路可靠性高
13.高清晰度背光中文LCD显示，显示累积流量、瞬时流量、流速、流量百分比等
14.菜单操作，使用方便，操作简单，易学易懂
15.双向测量系统，内部具有三个积算器可分别显示正向累计量、反向累计量及差值积算量
16.E+H电磁流量计具有自检与自诊断功能，并在屏幕上显示
17.E+H电磁流量计采用*的防雷设计。
，E+H电磁流量计部分型号：
E+H 50W2H-H50A1A10A7AW  DN=200
E+H 50W3H-H50A1A10A7AW  DN=300
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E+H CPK1-150A  20M
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