GFS

GFS DYNAMIC GRAVIMETRIC MASS FLOW STANDARD

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GFS™ delivers a true Primary Mass Flow Standard and makes the fundamental measurement of low gas mass flow rates in flow control systems practical. GFS primary mass flow measurements offer very low uncertainty values for independent metrology support of precision transfer standards like molbloc-L and molbloc-S, used for gas flow controller and other gas flow controlling device calibrations.

  • Covers the range of 0.2 to 200 mg/s in various gases (10 sccm to 10 slm N2)
  • Supported gases: Non-corrosive, non-toxic gases
  • Flow measurement uncertainty as low as ± 0.013% of reading
  • Maximum outlet pressure: 650 kPa absolute
  • Primary gravimetric principle using mass and time measurement
  • Automated unattended operation possible