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V&F HSense

Manufacturer: V&F

V&F HSense

EI mass spectrometer with magnetic-sector separation, optimised for fast and reliable measurement of hydrogen (H2) and helium (He).

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Key features

  • Optimised for H2 and He
  • Detection limit < 1 ppm H2 and < 20 ppb He
  • Integrated 2 µm fine filter and sample gas conditioning
  • Choice of gas inlet systems for pressure compensation

Technical data

Measuring principle
Electron impact ionisation with magnetic sector field separation (SF-MS)
Mass range
2–4 amu
Resolution
< 1 amu
Analysis time
>= 20 ms/amu
Measuring range
0–50,000 ppm / 0–100 vol%
Response time
T90 < 3 s
Detection limit
< 1 ppm H2 / < 20 ppb He
Concentration drift
< ±5 %
Accuracy
< ±3 %
Precision
< ±3 %
Ambient temperature
20–35 °C
Max. humidity
80 % (non-condensing)
Gas consumption
2.5 l/min
Gas inlet pressure (anode)
4 bar(a)
Gas inlet pressure (cathode)
1 bar(a)
Power supply
230 V/50 Hz or 115 V/60 Hz, 600 W
Dimensions (W x H x D)
534 x 743 x 639 mm
Weight
65 kg

Description

The V&F HSense is a mass spectrometer based on electron impact ionisation (EI-MS), optimised for fast and reliable measurement of H2 and He. In the EI ion source the sample gas components are ionised and focused, then separated in a magnetic field to determine hydrogen and helium.

Different gas inlet systems are available to compensate for pressure fluctuations, optimise the amount of sample gas drawn and ensure accurate measurement. An integrated 2 µm fine filter minimises contamination from condensation or particles, and an integrated sample gas conditioning system removes moisture from the sample gas.

Typical applications

  • Hydrogen and helium measurements
  • Combustion engine development and catalyst research
  • Fuel cell development and testing
  • Breathing air analysis
  • Sensor research and development

Application examples

Automotive industry

  • Hydrogen measurements for combustion engines
  • Gas analysis in fuel cell technology

Measurable compounds

  • Permanent gases: H2
  • Noble gases: He

Values marked as application-dependent (measuring range, response time, detection limit, gas consumption) depend on the compounds measured, the system configuration and the instrument settings.

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