What we do

Cignus Instruments AS is industrializing a novel and patented concept for precision direct mass-flow measurements of gases and liquids with particular advantage for applications within the emerging H2 and CCS value chains. Our technology is developed in close partnership with major energy companies, pipeline operators and equipment suppliers with global ambitions and motivated by the green transition.


Cignus MFM80 NPS 3 CO₂ Torsional mass flowmeter

Cignus Torsional mass flowmeters

Cignus measures mass flow using a sensing structure that oscillates in torsion and is decoupled from the pressure-bearing pipe. The instrument applies the Coriolis principle, with frequency and time delay as its primary measurement parameters. This preserves the core advantages of direct mass-flow measurement while enabling new capabilities; high operational pressures, large line sizes, low pressure loss, and compact installations.


Performance and capacity at high operational pressures

A decoupled sensor structure allows Cignus mass flowmeters to maintain performance at high pressures, very large pipe sizes and with thick walled piping.

Performance at low massflow

A decoupled sensing structure that stays tuned and sensitive while the pipe wall bears the pressure, delivering reliable low-mass-flow measurement for low-density gases.

Minimal pressure loss

Cignus flowmeters can be made to flush fit standard piping inner diameters, retaining >90% full pipe bore with a straight-through flow path. This results in a negligible pressure loss notably lower than conventional meters.

Compact installation footprint

Cignus mass flowmeters can keep the meter body within the envelope between the piping connections.

One meter, Any line size

Design is adaptable to sizes beyond that of traditional Coriolis flowmeters > 16in Nominal Pipe Size.

Subsea and submerged design

With an isolated measurement structure and compact size, the design is readily adaptable for subsea service at high working pressures used for injection and high external pressures found at the ocean floor.

Read more about the Technology


R&D

Cignus Mass flowmeters are currently part of test programs to qualify for applications in the CCS and H2 value chains in collaboration with our R&D Partners:

Read more about the Applications


News

  • New Calibration of DN25 meters in Hydrogen

    New Calibration of DN25 meters in Hydrogen

    Cignus Instruments passes a milestone with rolling out the latest iteration of mass flowmeter aimed for Hydrogen flow measurement. After a period of design, characterization and adjustments, the flowmeters are now being Calibrated in Hydrogen at DNVs flowloop in Groningen. These meters will now proceed to pilot installations on Electrolyzers in Norway due fall of […]

    Read more…


  • Commisioning of new flowloop

    Commisioning of new flowloop

    Cignus has commisioned a new water flowloop with temperature control in the Cignus lab. The loop will be invaluable piece of equipment for initial characterization of new flowmeters. Cignus team mounting a flowmeter in the floowloop.

    Read more…


  • Cignus expands the team

    Cignus expands the team

    Cignus instruments welcomes Christian Nomme to the team in the role of Senior Technologist. Christian has a background as a Mechanical Engineer with a Ma.Sc from NTNU. He enters with a long experience in R&D, design and development of new products and technologies. The last years he has been working employed as Principal Mechanical Engineer […]

    Read more…


  • Cignus joins H2MET Joint Industry Project

    Cignus joins H2MET Joint Industry Project

    Cignus Instruments joins H2MET, a DNV led joint industry project scheduled for 2025 with the purpose of assessing the performance of different flow measurement technologies in 100% Hydrogen. Read more about the project published by DNV: Metrology for hydrogen flow – H2MET Cignus pure H2 test

    Read more…


  • How Cignus Instruments builds better carbon capture and hydrogen business with CaptureMap

    How Cignus Instruments builds better carbon capture and hydrogen business with CaptureMap

    Read external article: How Cignus Instruments builds better carbon capture and hydrogen business with CaptureMap – CaptureMap

    Read more…


  • Testing of mass flowmeters for CO₂

    Testing of mass flowmeters for CO₂

    Setting up Water flow test of CO2 prototype at TUV-SUD-NEL (Uk). Cignus Instruments AS Martin Nese is well-positioned to lead the development of the next generation of Mass-flow meters, with special focus on the CCS industry. We also see great potential in implementing such meters subsea, where it is crucial to know the exact amount of […]

    Read more…