Clamp-On Ultrasonic Flow Meter Eliminates Costly Shutdowns

Our water treatment facility was experiencing unexpected losses. The SCADA system showed steady flow rates, but our tanks were emptying twice as fast. We traced the issue to a faulty inline meter that required constant shutdowns for maintenance—costly and inconvenient. Inline meters necessitate pipe cutting, which mandates plant shutdowns, incurring substantial downtime expenses. Our process engineer recommended installing a clamp-on ultrasonic flowmeter, suggesting minimal disruption.

We installed the DR5200, a non-invasive ultrasonic flow meter, to monitor the flow without any shutdown or pressure drop. The results were immediate and impressive—tank levels stabilized, and we avoided costly shutdowns. The clamp-on design uses transducers that attach to the outside of the pipe, transmitting ultrasonic signals through the pipe wall. This non-invasive installation eliminates the need for pipe modifications, saving hours of labor and thousands in lost production. For example, a typical inline meter replacement at our facility required an 8-hour shutdown, costing $15,000 in lost throughput. With the DR5200, installation took just 2 hours during normal operation, with zero downtime.

Key Specifications
The DR5200 offers clamp-on or inline ultrasonic measurement, providing flexibility for various applications. Its non-invasive installation means no pipe cutting or pressure drop, and no moving parts to wear out. Bidirectional flow capability allows measurement in both directions, essential for systems with reverse flow. Configurable outputs and a clear display enable easy integration with existing SCADA systems.
Technical Depth
Ultrasonic flow meters operate on the transit-time principle: two transducers send signals upstream and downstream; the difference in travel time is proportional to flow velocity. The DR5200’s advanced signal processing compensates for pipe material, wall thickness, and fluid properties, ensuring accuracy within ±1% of reading. This makes it ideal for water, wastewater, and process fluids.
Comparison with Alternatives
We considered electromagnetic flow meters, but they require full pipe conditions and conductive fluids. Turbine meters have moving parts that wear out. The DR5200’s clamp-on design avoids these issues, offering maintenance-free operation.
Installation Challenges
Our pipes had heavy external rust, but the DR5200’s high-gain transducers and automatic gain control handled the signal attenuation. We used coupling gel and mounting fixtures to ensure proper alignment.
Quantifiable Results
After installation, we measured flow within 0.5% of a calibrated inline meter. Tank levels stabilized, and we eliminated $60,000 in annual maintenance costs. The payback period was under 3 months.

How many flow points are you overlooking due to the need for pipeline modifications? With the DR5200 ultrasonic flow meter, you can measure at any accessible pipe section without shutdowns. For more information, visit [ISA](https://www.isa.org) or [Control Engineering](https://www.controleng.com).

Tags: #ultrasonicflowmeter #clamponflowmeter #noninvasiveflowmeasurement #DR5200