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Allison Engineering

Innovative Solutions for
Process Control

Gas Mass Flow Meters



The European Carbon Trading Scheme relies heavily on accurate flow metering that can be functionally tested “in situ”. Based on the ST100, the ST110 allows the operator to functionally test the device and verify the calibration without removing it from the pipeline.

The ST110 is unique in its ability to be functionally tested and the calibration checked without removing the sensor from the pipeline.

It features an internal  purge tube that runs the length of the sensor and allows the operator to generate a known flow across the sensor element. The resultant signal output can then be compared to the factory baseline test certificate. It is fully compliant with the ETS phase ll requirements for carbon trading.



Key Features

  • “In-situ” calibration testing
  • 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