变面积流量计H250 M8

为液体 天然气 法兰

•机械或电子条形指示器(4…20 mA/HART®)•法兰:DN15…25 / 1⁄2…1”;还有NPT, G，卫生连接等。H250 M8是一种可变面积(VA)流量计，带有电信号输出和条形图指示或机械指示，带有两个可选的限位开关。紧凑的流量计允许节省空间安装。因此，它非常适合安装在有限的空间。H250 M8E版本的特点是磁传感器记录浮子的位置，没有接触或滞后。标准系统操作采用2线技术的线性模拟输出(4…20 mA)。H250 M8M版本无需辅助电源。流量值以及可选的两个极限开关设定值显示在刻度上。它已被批准用于危险区域，并具有广泛的工艺连接。 • The space-saving standard VA meter • PPS housing as standard, stainless steel housing as option • Optional limit switches or 2-wire 4…20mA • Ingress protection IP66/67 • Full scale value for liquids: 10…6,300 l/h / 5…1664 GPH • Full scale value for gases: 0.7…180 m3/h / 25…111 SCFH • Turndown ratio 10:1 • Accuracy: ±1.6% (acc. to VDI/VDE 3513, sheet 2) • Approvals for use in hazardous areas Typical applications Chemical and other process industries • Additives (e.g. catalysts, tensides, foam inhibitors, emulsifiers) • Acids, bases, phosgene and other chloridic substances, sulphuric substances • Condensate and cooling water • Nitrogen inertisation of vessels and tanks