The compact GH2+ system series was developed for measurement and accounting of highly compressed hydrogen transported in trailer vehicles. The flow measurement system stands out from competing systems due to its temperature-independent mass flow measurement and guarantees high accuracy and safety, thanks to its custody transfer certification.
RMS – Accredited Reference System for On-site Calibration of Gaseous Hydrogen Measurement Devices
TrigasDM developed the RMS (Reference Metering System) in close collaboration with hydrogen refueling station operators and manufacturers, as well as metrology institutes.
The result: a compact, mobile reference measurement system that enables a complete metrological inspection of a hydrogen refueling station or an H₂ dispensing system in just a few hours – on-site, without disassembly, and without the need for transportation.
The RMS delivers precise measurement results as a complete file: dispensed volume, mass flow, pressure and temperature profiles – ready for regulatory authorities and documentation purposes.
Compact. Mobile. Fits in a car. One person. 3–4 hours.
The RMS was built for companies that want to take metrological verification of H₂ dispensing systems into their own hands – independently, efficiently, and in full regulatory compliance.
Operators of hydrogen refueling stations
In Germany, the legal re-verification interval is 2 years (pursuant to § 34 MessEV). Owning the RMS means you plan your measurement campaigns on your own schedule – no long lead times, no dependency on third-party availability.
Manufacturers and operators of mobile H₂ dispensing systems
The RMS is compact enough to transport between multiple sites and precise enough to serve as a reference system in hydrogen fiscal metering.
Service providers in the hydrogen market
Managing multiple refueling stations or H₂ dispensing systems requires a tool that works fast, repeatably, and with full documentation. The RMS delivers exactly that – a complete measurement campaign in approximately 4 hours, weather-independent, deployable all year round.
Manufacturers of H₂ dispensing systems
For acceptance measurements and conformity assessments of new installations, you need a reference system whose results are officially recognized. The RMS is PTB-approved and provides the metrological basis for the official verification of your system.
Technical Highlights at a Glance
🚗 Portable and compact: Fits in a car; setup and takedown in about 1 hour
🌡 Weather-resistant: Operates from -40 to +55 °C – usable year-round
📋 Complete measurement documentation: Automated measurement process, structured measurement report
✅ PTB-certified: The RMS has been tested by the Physikalisch-Technische Bundesanstalt (PTB)—the PTB test report is available upon request
💧 No hydrogen loss: Test hydrogen is used directly for refueling
Need to have your RMS calibrated – and book on-site calibration services?
Like any reference measurement system used in metrological applications, the RMS must be calibrated regularly. The calibration requirements are specified in the PTB test report.
Calibrating the RMS:
Like any reference measurement system used in fiscal metering applications, the RMS must also be calibrated regularly. The exact requirements are specified in the PTB test report. TrigasFI performs these calibrations -DAkkS-accredited to ISO 17025, with the widest measurement ranges and highest accuracy.
On-site calibration of your hydrogen refueling station:
TrigasFI is the first mobile, DAkkS/ISO 17025-accredited laboratory for H₂ dispensing systems – and comes directly to your facility.
Please contact us. We look forward to hearing from you.
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The GH2 Hub from TrigasDM® is a stationary, fiscal metering flow measurement system for gaseous hydrogen, designed for unloading hydrogen trailers at stationary receiving points and trailer exchange stations. The system enables precise and legally compliant recording of the delivered H₂ volumes—regardless of fluctuating flow rates. GH2 Hub thus provides the legal basis for billing stationary hydrogen refueling in industrial applications.
Our RMS Hydrogen Reference Measurement System makes it possible to conduct a complete metrological inspection, for example, of a hydrogen refueling station, within a few hours. The measurement results from our RMS serve as the basis for the metrological inspection of the facility or for acceptance testing. The measurement system is characterized by its compact size and can be easily transported in a passenger car. A measurement campaign can thus be carried out by a single person in approximately 3 or 4 hours.
Erdinger Straße 2b
85375 Neufahrn
Germany
Telefon: +49 8165 9999 300
Fax: +49 8165 9999 369