Hydrogen & Helium Mass Spectrometer


The HSense is based on the Electron Impact Ionization (EIMS) Mass Spec principle optimized to measure H2 and He fast and reliably. By using the electron ion source the gas sample ions are energized, focused and separated further on in a magnetic field in order to detect Hydrogen and Helium.

The HSense is available with unique and fully automated gas inlet systems in order to compensate pressure variations, optimize the amount of withdrawn sample gas and thus guarantees the correct measurement.

Any contamination due to condensation or particulate matters is minimized by the integrated 2 micron fine filter in combination with a cross flow sample conditioning system, which takes care of any potential water content.


Functional Diagram


Typical Applications

  • Hydrogen and Helium measurements
  • Development of combustion engines and catalyst research
  • Development and testing of fuel cells
  • Breath analysis
  • Sensor research and development

Measureable Compounds

Substance name Molecular formula
Hydrogen H2
Helium He


Technical Data SF-MS Technical Data SF-MS
Mass range 2 – 4 amu Reproducibility ‹ ± 3 %
Resolution ‹ 1 amu Accuracy ‹ ± 2 %
Analysis time ›= 20 msec/amu Ambient temperature 10 °C - 35 °C
Measuring range* 0 -50,000 ppm, 0 – 100 Vol% Humidity max. 80 % (non-condensing)
Response time* T90 ‹ 1 sec Power 230 V/50 Hz or 115 V/60 Hz 600 W
Lower detection Limit* < 1 ppm for H2, < 20 ppb for He Dimension (WxHxD) 534 x 743 x 639 mm
Concentration drift ‹ ± 3 % over 24 h Weight 65 kg

* depending on the measured components, concentrations, system setup and the settings

Reference Customers (excerpt)


Product flyer