Product Overview The FLOWSIC610 is a compact, high-precision ultrasonic flow meter built on years of expertise in custody transfer measurement. Specifically engineered for demanding hydrogen applications, this MID-certified solution offers unmatched reliability for the hydrogen economy. Whether for electrolyzer outlets or high-pressure transport pipelines, the FLOWSIC610 provides a durable, maintenance-free solution for the green energy transition.
Custody Transfer Excellence: Class 1 accuracy for the entire range (DN50 to DN400) with a remarkable 1:160 turndown ratio.
Real-time Purity Monitoring: Optional Hydrogen Purity Indication based on the Speed of Sound (SoS), providing process control without the need for additional gas chromatographs.
High-Velocity Performance: Certified flow performance up to 60 m/s (200 ft/s), ideal for low-density hydrogen at high flow rates.
Zero Pressure Drop: Full-bore design ensures no energy loss and prevents pressure drops across the meter.
Rugged & Safe: Equipped with intrinsically safe ultrasonic sensors and ATEX/IECEx IIC T4 explosion protection.
Smart Integration: Rapid commissioning via FLOWgate™ software with Bluetooth and Modbus connectivity.
Hydrogen Custody Transfer: Precision billing for hydrogen trade and grid injection.
Electrolyzer Monitoring: Measurement of output lines in green hydrogen production facilities.
Hydrogen Transport & Storage: Accurate tracking for high-pressure pipelines and storage terminals.
Hydrogen Compressor Stations: Reliable flow data in high-vibration and high-pressure environments.
| Feature | Specification |
| Measurement Principle | Ultrasonic Transit Time Difference |
| Measured Variables | Volumetric flow, gas velocity, speed of sound, H2 purity |
| Measuring Medium | Hydrogen (Purity >95%; >90% on request) |
| Pipe Diameter | DN50 … DN400 (2” … 16”) |
| Accuracy (Standard) | $\le \pm 0.5\%$ (Dry calibrated) |
| Accuracy (Optimized) | $\le \pm 0.1\%$ (After flow calibration & adjustment) |
| Repeatability | $\le \pm 0.05\%$ |
| Operating Pressure | 15 … 102.1 bar(g) (Optional from 7 bar) |
| Medium Temperature | -40 °C to +85 °C (-40 °F to +185 °F) |
| Hazardous Area Rating | ATEX/IECEx: II 2(1) G Ex db ia [ia Ga] IIC T4 Gb |
| Communication | 2x Modbus RS-485, USB, Bluetooth, 4x Digital Outputs |
At Hanyu zhilian, we specialize in providing integrated measurement solutions for the modern industrial landscape. The FLOWSIC610 is not just a meter; it is a gateway to digitalizing your hydrogen infrastructure.
Expert Support: Full technical consultation from selection to installation.
Compliance: All instruments meet international safety and metrological standards.
System Integration: Seamlessly pair your flow meter with our Pressure Transmitters and Level Gauges for a complete process monitoring system.
The meter utilizes Speed of Sound (SoS) technology to detect changes in gas composition. By analyzing the time difference of ultrasonic pulses, it provides real-time purity indicators for hydrogen concentrations (>90% or >95%), offering a cost-effective alternative to online analyzers.
For DN100 and above, a straight inlet section of $\ge 10DN$ is recommended. For smaller sizes like DN50/DN80, $\ge 5DN$ with a flow conditioner (FC) is required to ensure a stable flow profile and maintain Class 1 precision.
No. The FLOWSIC610 features a full-bore design with no internal obstructions or moving parts. This ensures zero pressure drop, which is critical for maintaining energy efficiency in high-pressure hydrogen networks.
The device is highly integrated with Dual Modbus RS-485 (RTU/ASCII), USB, and Bluetooth connectivity, allowing for seamless integration into SCADA systems and easy onsite commissioning via the FLOWgate™ app.
