Sensors & Monitoring

The flow rate determines whether the correct quantity has been transferred in the desired time unit. Depending on the process and requirements, the flow rate can be determined inline or at the fluidic path end.

If a process requires an absolute quantity, the dosing accuracy of the system should be checked. This is mostly done gravimetrically.

Checking the liquid level prevents the primary tubes from running completely dry and the target tubes from overflowing. Common types of level measurement include conductivity measurement, capacitive measurement, optical measurement or ultrasonic measurement.

Monitoring is used for more security. Therefore, a warning or an emergency shutdown can be initiated.

Testing for leakage is useful when dangerous substances (highly flammable, explosive or toxic) are transferred. Depending on the concentration in the room air, it can lead a warning or an emergency shutdown during monitoring.

Air bubbles in completely filled fluidic systems can be a sign of leakage or outgassing of the medium. In both cases it is causing problems. For this purpose, ultrasound or thermal conductivity can be used as non-contact measuring methods.