Using a flow detector to maintain your volumetric feeder's accuracy
If you use a volumetric feeder, you're probably concerned that material flow interruptions during feeding can affect the feeder's accuracy. This article explains how using a flow detector can help you maintain volumetric feeding accuracy. Sections describe how a volumetric feeder operates, how material flow can be interrupted, and types of flow detectors.
A volumetric feeder delivers material to a process at a certain volume per unit time at a given motor speed, and the feedrate is stated in units of volume per unit time [such as cubic feet per hour]. But the volumetric feeder has a major disadvantage: It can't recognize material flow interruptions.