型号描述

型号 8719 是一台用于在工艺技术领域内调节液体流量的装置。传感器发送的实际值将在数字的电子调节设备中与标准信号所规定的额定值比较；存在调节偏差时，会通过一种 PI 调节算法对发送到比例阀上的调节参数进行修改。这样一来，就可以将流量保持在一个确定的数值上，或使其遵循规定的曲线轮廓，而不会受到压力波动或设备中其他变化的影响。一个无摩擦工作的比例阀作为调节元件，确保了高反应灵敏度和装置良好的调节特性。

1）通过快速的流量测量实现高动态调节

2）适合计量为 600 ml/min (36 l/h) 的液体量

3）介质里无移动部件

4）可选的现场总线

Type Description

Type 8719 is an instrument for liquid flow control in process technology. The measured value provided by the sensor will be compared in the digital control electronics with the predefined set point according to the signal; if a control difference is present, the control value output to the proportional valve will be modified using a PI-control algorithm. In this way, the flow can be maintained at a fi xed value or a predefined profile can be followed, regardless of pressure changes or other disturbances in the system. As a control element, a proportional valve working at low friction guarantees the high sensitivity and good control characteristics of the unit.

1）High dynamic control through fast flow measurement
2）Applicable for liquid dosing up to 600 ml/min (36 l/h)
3）No moving parts in medium
4）Protection class IP65
5）Fieldbus optional

气体质量流量控制器部分订货号如下：

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