型號描述
型號 8719 是一臺用于在工藝技術(shù)領(lǐng)域內(nèi)調(diào)節(jié)液體流量的裝置。傳感器發(fā)送的實際值將在數(shù)字的電子調(diào)節(jié)設(shè)備中與標(biāo)準(zhǔn)信號所規(guī)定的額定值比較；存在調(diào)節(jié)偏差時，會通過一種 PI 調(diào)節(jié)算法對發(fā)送到比例閥上的調(diào)節(jié)參數(shù)進行修改。這樣一來，就可以將流量保持在一個確定的數(shù)值上，或使其遵循規(guī)定的曲線輪廓，而不會受到壓力波動或設(shè)備中其他變化的影響。一個無摩擦工作的比例閥作為調(diào)節(jié)元件，確保了高反應(yīng)靈敏度和裝置良好的調(diào)節(jié)特性。
1）通過快速的流量測量實現(xiàn)高動態(tài)調(diào)節(jié)
2）適合計量為 600 ml/min (36 l/h) 的液體量
3）介質(zhì)里無移動部件
4）可選的現(xiàn)場總線
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
氣體質(zhì)量流量控制器部分訂貨號如下：
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