S461 – High‑Precision Ultrasonic Flow Meter for Liquids
Clamp‑on device for high‑precision liquid flow and consumption measurement.
- Non-contact measurement of flow and consumption for multiple liquids.
- Energy measurement with clamp-on temperature probes (optional).
- Bidirectional flow with separate counters.
- Easy installation and configuration via the S4C-US app.
- Compatible with pipes from DN40 to DN1200.
- Data logging and energy efficiency analysis.
- Outputs: Modbus, 4–20 mA, pulses, and alarms as required.
- Portable version available for temporary measurements.
Description

Precise and reliable real-time liquid flow measurement
The SUTO S461 ultrasonic flow meter allows accurate, fast, and non-contact measurement of liquid flow and consumption. Using transit-time technology, the sensors are mounted externally on the pipe, avoiding any interference with the liquid.
The main unit can be installed on the pipe, wall, or DIN rail, while optional tools simplify sensor alignment and positioning. Ideal for industrial applications, consumption monitoring, and energy efficiency management of water, oils, and other liquids.
Applications
Reliable measurement of liquid flow and consumption in industrial environments.
Robust design, suitable for fixed installation on wall, pipe, or DIN rail.
Portable and permanent versions for temporary or continuous measurement.
Compatible with a wide range of liquids: water, oils, solvents, and other acoustically conductive liquids.
Ideal for energy system monitoring with optional temperature sensors.
Advantages
Quick and easy configuration via the S4C-US mobile app.
Non-contact measurement, preventing interruptions or contamination of the liquid.
Bidirectional measurement and real-time consumption logging.
Extensive connectivity options: Modbus/RTU, 4–20 mA, pulse, M-Bus, and Modbus/TCP.
High accuracy and repeatability under varying operating conditions.
Option for integration with existing control and data acquisition systems.



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Technical Information
- Flow range: Suitable for pipes of various diameters and flow rates.
- Liquid compatibility: Clean and dirty water, non-aggressive chemical fluids, oils, and other acoustically conductive liquids.
- Operating temperature: Sensor and main unit designed to operate within standard industrial ranges without affecting accuracy.
- Non-intrusive installation: Does not require cutting the pipe or stopping the liquid flow.
- Data logging and storage: Capable of storing historical flow and energy data for later analysis.
- Certifications and standards: Complies with international standards for ultrasonic flow meters and measurement quality.
- Minimal maintenance: Non-intrusive design reduces wear and maintenance requirements.
- Display options: Local display on the unit and remote visualization via software or app.


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