Specs at a glance
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Measured variables
Volume a. c., volumetric flow a. c., gas velocity, speed of sound, hydrogen purity (option)
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Measuring Medium
Hydrogen with purity >95%
Hydrogen with purity >90% (on request) -
Nominal pipe size
DN50 … DN400 / 2” … 16”
Others on request
Field of application
Compact, accurate and ready for the future of clean energy. Build upon years of custody metering experience, FLOWSIC610 is an ultrasonic flowmeter approved to the MID for a custody transfer hydrogen gas measurement: A robust and reliable solution designed for the challenging hydrogen operating conditions. FLOWSIC610 is available for all sizes from DN50 to DN400 with fiscal accuracy class 1. The purity indicator option provides instantaneous monitoring of hydrogen purity based on speed of sound.
Custody transfer measurement of hydrogen
Transport and storage of hydrogen
Export pipeline of electrolyzers
Measurement at hydrogen compressor stations
Device properties:
Accuracy class 1
Proven flow performance up to 60 m/s (200 ft/s)
Full bore design without pressure drop
Large turndown ratio up to 1:160
Hydrogen purity indication option
Intrinsically safe and reliable ultrasonic transducers
Benefits
Accuracy class 1 meter for all sizes starting from DN50 to DN400 with up to 1:160 turndown ratio
Reliable and trusted provider of fiscal solutions
Ready for energy equivalent flow - proven flow performance up to 60 m/s (200 ft/s)
Hydrogen purity indication - real time values for process control
Quick and easy commissioning through FLOWgateTM
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Standard products
- Reliable, robust and low-maintenance
Technical excellence
Simplicity
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Specialized products
- Designed for demanding applications
Technical excellence
Simplicity
Variable
| FLEX selections | Technical excellence | Simplicity |
|---|---|---|
Fundamental selection Meet your basic measurement needs |
Technical excellence
|
Simplicity
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Lean selection Handle your core processes easily |
Technical excellence
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Simplicity
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Extended selection Optimize your processes with innovative technologies |
Technical excellence
|
Simplicity
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Xpert selection Master your most challenging applications |
Technical excellence
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Simplicity
Variable |
8 documents
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Operating Instruction (BA)
FLOWSIC610
Flow Meter
Language:
English
Version:
01/02/2026
File size:
4.3 MB
File name:
8030154_1V8B_OI_FLOWSIC610_en_V1-0_2026-02_EHS.pdf
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Competence Brochure (CP)
FLOWSIC Flow Meters and Instruments
Precise quantity measurement – for accurate billing and process control
Language:
English
Version:
01/03/2026
File size:
3.1 MB
File name:
8030079_CP_Flow_meters_en_V2-1_2026.03_EHS_WEB.pdf
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Innovation (IN)
FLOWSIC610 – Custody transfer ultrasonic flowmeter for hydrogen gas measurement
Hydrogen – How to ensure quality and regulatory compliance
along the hydrogen value chain?Language:
English
Version:
24/02/2026
File size:
3.9 MB
File name:
8030426_IN_FLOWSIC610_en_V1-1_2026.02_EHS_WEB.pdf
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Innovation (IN)
FLOWSIC610
FLOWSIC610
Misuratore di portata ad ultrasuoni
per la misura fiscale dell’idrogeno
gassosoLanguage:
Italian
Version:
01/04/2026
File size:
2.9 MB
File name:
IN01471DIT_FLOWSIC610_2026.02_EHS.pdf
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Explosion Protection
Product family: FLOWSIC, FLOWSIC550, FLOWSIC610, FLOWSIC900
Product root: IFL550-, IFL610-, IFL900-
Region: Europe
Approval agency: CSA
Protection: Ex iLanguage:
English
Version:
27/08/2025
File size:
74 KB
File name:
9407805_00_AP_CDUSB100_en_ATEX_CSANe_24ATEX1171X_Rev00.pdf
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Explosion Protection
Product family: FLOWSIC, FLOWSIC610, FLOWSIC900
Product root: IFL610-, IFL900-
Region: Europe
Approval agency: CSA
Protection: Ex dLanguage:
English
Version:
14/01/2026
File size:
89.6 KB
File name:
9415708_03_AP_FLOWSIC610_FLOWSIC900_en_CSA_CSANe_24ATEX1288X_Rev03.pdf
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Explosion Protection
Product family: FLOWSIC, FLOWSIC550, FLOWSIC610, FLOWSIC900
Product root: IFL550-, IFL610-, IFL900-
Region: Canada/USA
Approval agency: CSA
Protection: Ex iLanguage:
English
Version:
02/09/2025
File size:
386.8 KB
File name:
9407807_00_AP_CDUSB100_en_CSA_cCSAus_80212930.pdf
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Explosion Protection
Product family: FLOWSIC, FLOWSIC610, FLOWSIC900
Product root: IFL610-, IFL900-
Region: International (IECEx)
Approval agency: CSA
Protection: Ex dLanguage:
English
Version:
11/03/2026
File size:
902.4 KB
File name:
9409504_03_AP_FLOWSIC610_FLOWSIC900_en_CSAE_IECEx_CSAE_24-0013X_Rev03.pdf
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