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Allison Engineering

Innovative Solutions for
Process Control

Gas Mass Flow Meters



The all-new, thermal dispersion technology gas flow meter that combines the most feature- and function-rich electronics with the industry’s most advanced flow sensors.

The ST100 is the most advanced thermal mass flow meter available. It is fully programmable via a touch screen display and capable of storing multiple gas calibrations.

It is ideally suited to harsh applications as found in the offshore oil and gas industry and we regularly supply it for flare gas measurement. It is also fully compliant with the ETS phase ll accuracy requirements for carbon trading.

Key Features

  • SIL1 / ATEX certified
  • 316 st/st / Hastelloy C wetted parts
  • Process temperatures up to +450°C
  • 1000 : 1 turndown ratio
  • 4-20mA / HART/Profibus PA / Fieldbus H1
  • Mixed hydrocarbon gas calibrations