Non-contacting liquid velocity sensor – maintenance-free and cost-effective31 March 2016
Pulsar Process Measurement’s latest launch is MicroFlow, a microwave based non-contacting velocity sensor that mounts simply above a channel to provide maintenance-free, reliable, repeatable and accurate velocity measurement.
For flow volume measurement, velocity x area provides a cost-effective alternative to a channel restriction such as a flume, and a viable solution in situations where system hydraulics do not permit the installation of any primary measurement device.
MicroFlow can be used as a stand-alone device, outputting velocity data via RS485 Modbus with a measurement accuracy of ±0.033m/s or 0.5%, whichever is greater. The industry-standard data can be used for datalogging or alarm purposes, or processed further in a PLC. MicroFlow can also integrate with Pulsar’s FlowCERT ultrasonic flow measurement controller and a transducer such as Pulsar’s flow-dedicated dBMACH3 to create a complete open channel flow measurement system.
MicroFlow consists of a compact, lightweight low-cost sensor, and is simply installed on a bracket above the flow at a 45º angle. Loop power and straightforward RS485 PC set up means that connection is simple and quick. Signal processing is via Pulsar’s well-proven digital algorithm and is a development from the system first seen in their award-winning FlowPulse device for measurement in closed pipes.
Mark Venables
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Pulsar Process Measurement
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