Flow rate measurement with Parshall flumes - DI-BOX Zakład Aparatury Kontrolno-Pomiarowej

APPLICATION: Parshall flumes in accordance with ISO 9826 data sheet are intended for measurement of volumetric flow rate in rectangular channels with gravity flow. The flumes are made of stainless steel or PVC sheets and enable measurements within the range specified in the table below.

MEASURING SET DESIGN

• Parshall flume
• FLOWBOX Flow meter (M1600 Transducer + Ultrasonic level sensor)

ASSUMPTIONS
The liquid flow rate measurement with Parshall flume and water rise method in rectangular channels is based on the actual liquid level measured by the ultrasonic sensor (radar sensor, optional) at the hydraulic structure converted into the value of flow ratio by the measuring transducer.

The basic condition to apply the method is to provide free, undisturbed outflow of liquid from the measuring flume.