Flow sensor SONOFLOW® CO.56

bubblemedicalultrasonic

Product Overview
The hybrid flow-and-bubble sensors SONOFLOW® CO.56 provide non‑invasive ultrasonic bidirectional flow measurement and contactless air‑bubble detection for liquid-filled medical tubing. Clamp-on attachment or fixed built-in mounting is possible, with integrated electronics and on-board processing for compact system integration.

Product Benefits

• Combined flow measurement and air-bubble detection in a single sensor
• Non-invasive monitoring through tubing wall, no media contact
• Designed for medical device integration and regulated environments
• Compact footprint with integrated electronics—no external board required
• Available in multiple housing sizes and materials to match tubing types

Key Features

• Hybrid sensors for standard medical tubing diameters
• SONOFLOW® CO.56: compact variant for fixed mounting onto devices, multiple size options
• Different sensor sizes to cover tubing from nominal 4 mm up to 16 mm
• Integrated microprocessor and signal processing on board
• Protection class IP67

Electronics & Interfaces

• On-board electronics and microprocessor
• RS-485 interface; supports networking and control of up to 12 sensors on a line

Measuring Principle

• Bidirectional flow measurement using ultrasonic transit-time principle
• Air-bubble detection by ultrasonic transmission technology

Safety Concept
Technical Safety Features

• Fail-safe architecture with cyclical self-tests
• Watchdog to secure outputs in case of major sensor errors
• Initial self-test on power-up or software reset

Regulatory Safety Standards

• Medical safety: IEC 60601-1 (3rd edition)
• Electromagnetic compatibility: IEC 60601-1-2 (4th edition)
• Acoustic emission: IEC 61157
• RoHS compliance: 2011/65/EU

Technical Data (summary)
Measurement principle: Ultrasound
Functions: Combined bidirectional flow measurement and contactless air-bubble detection
Installation: Built-in
Tubing: nominally 4 mm … 16 mm
Tube materials: PVC, silicone, PTFE, PFA, FEP, TPE, Tygon, PE, etc.
Sensor material: Aluminum (red/grey)
Weight: approx. 120–145 g depending on size
Interfaces: RS-485 (up to 12 sensors per line)
Protection class: IP67

Application Fields

• Cardiac support and perfusion systems
• Organ transport and preservation systems
• Perfusion and infusion therapy devices
• Robot-assisted surgery and integrated medical systems