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德国原装E+H涡街流量计

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艾莉特自动化设备
2023-03-21 14:42:51
上海市
德国
2093

具体成交价以合同协议为准

【简单介绍】

For standard applications
Mass flow is computed by entering fixed operating density values or by pressure/temperature-compensated calculation by an external flow computer (e.g. RMS 621 or RMC 621)

【详细说明】

德国进口（非导电液体）E+H涡街流量计

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E+H涡街流量计也称之为旋涡流量计或卡门涡街流量计。综合吸收发达国家*技术和总结多年研究生产经验的基础上进行精心设计的产品，实现了产品智能化、标准化、系列化、通用化、生产模具化、确保产品质量的美观性。该产品具有电路*、功耗微低、量程比宽、结构简单、阻力损失小、坚固耐用、用途广、使用寿命长、工作稳定、便于安装调试等特点。

参数及要求

◆测量介质：气体、液体、蒸气

温压补偿型涡街流量计——迪元仪表

◆连接方式：法兰卡装式、法兰式、插入式

◆口径规格法兰卡装式口径选择 25,32,50,80,10

◆法兰连接式口径选择 100,150,200

◆流量测量范围正常测量流速范围雷诺数1.5×104～4×106；气体5～50m/s; 液体0.5～7m/s

正常测量流量范围液体、气体流量测量范围见表2；蒸气流量范围见表3

◆测量精度 1.0级 1.5级

◆被测介质温度:常温–25℃～100℃，高温–25℃～150℃ -25℃～250℃

◆输出信号脉冲电压输出信号高电平8～10V 低电平0.7～1.3V

◆脉冲占空比约50%,传输距离为100m

◆脉冲电流远传信号 4～20 mA,传输距离为1000m

◆仪表使用环境温度:-25℃～+55℃ 湿度:5～90% RH50℃

分离式涡街流量计——迪元仪表

◆材质不锈钢, 铝合金

◆电源 DC24V或锂电池3.6V

◆防爆等级本安型iaIIbT3-T6，防护等级 IP65

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德国进口（非导电液体）E+H涡街流量计原理：在流体中设置三角柱型旋涡发生体，则从旋涡发生体两侧交替地产生有规则的旋涡，这种旋涡称为卡门旋涡，旋涡列在旋涡发生体下游非对称地排列。

涡街流量计是根据卡门涡街原理（Kármán Vortex Street）测量气体、蒸汽或液体的体积流量、标况的体积流量或质量流量的体积流量计。并可作为流量变送器应用于自动化控制系统中。

涡街流量计是应用流体振荡原理来测量流量的，流体在管道中经过涡街流量变送器时，在三角柱的旋涡发生体后上下交替产生正比于流速的两列旋涡，旋涡的释放频率与流过旋涡发生体的流体平均速度及旋涡发生体特征宽度有关，可用下式表示：

式中:为旋涡