Type 8719 is an instrument for liquid flow control in process technology. Typical applications include liquid dosing in heat treatment, machine tools, fuel cell technology processes.
- High dynamic control through fast flow measurement
- Applicable for liquid dosing up to 600 ml/min (36 l/h)
- No moving parts in medium
- Protection class IP65
- Fieldbus optional
A proportional valve working at low friction ensures high sensitivity and good control.
The measured value provided by the sensor is compared with a predefined set point. 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 fixed value or a predefined profile can be followed, regardless of pressure changes or other disturbances in the system.