ST501 Clamp-On Ultrasonic Flow Meter

ST501 Clamp-On Ultrasonic Flow Meter

The ST501 is a flexible clamp-on ultrasonic flow meter designed for liquid flow measurement without modifying the pipeline. External transducers are mounted on the outside of the pipe, enabling fast installation without cutting pipes, stopping production, or interrupting process operations.

Thanks to its non-invasive clamp-on design, the flow meter can easily be relocated between measurement points whenever required. This makes the ST501 ideal for temporary flow surveys, troubleshooting, system optimization, and continuous monitoring applications.

The ST501 utilizes proven transit-time ultrasonic technology to provide accurate flow measurement in water, seawater, process liquids, oils, and other compatible fluids. Since the transducers never come into contact with the liquid, there is no pressure loss, contamination risk, or leakage potential.

Typical Applications

• Water treatment plants
• RAS and aquaculture facilities
• Industrial process systems
• HVAC, cooling and heating systems
• Pump stations and utility networks
• Energy and resource monitoring
• Troubleshooting and performance assessments

Benefits

• No pipe cutting or process interruption required
• Easily relocated between measurement points
• No contact with the process fluid
• No pressure loss
• No leakage or contamination risk
• Suitable for pipe sizes from DN25 to DN1200
• LCD display with intuitive menu navigation
• RS485 communication for PLC, SCADA and automation systems
• 4–20 mA, pulse and relay outputs
• Bidirectional flow measurement

Technical Specifications

• Measurement principle: Transit-Time Ultrasonic
• Pipe size: DN25–DN1200
• Velocity range: 0 to ±5 m/s
• Accuracy: ±1.0%
• Communication: RS485
• Outputs: 4–20 mA, pulse output and relay output
• Power supply: 24 VDC
• Display: Backlit LCD
• Electronics enclosure: IP65
• Transducer protection: IP68
• Standard cable length: 10 meters

The ST501 provides a cost-effective solution for organizations that require reliable flow measurement without expensive installation work. Its ability to be relocated between multiple pipelines allows a single instrument to support several measurement applications across a facility.

Contact DABCE for assistance in selecting the appropriate configuration, transducer placement, and installation method for your application.