Tel: +44 (0)1268 526161

Allison Engineering

Innovative Solutions for
Process Control

Gas Mass Flow Meters



The ST98 is a thermal mass flow meter for Biogas, Compressed air, Natural gas.

The ST98 is easy to install, fully programmable, and can be inserted and removed “live” with a standard full bore ball valve.

It communicates with 4-20mA signals, HART or Profibus DP

Key Features

  • ATEX certified
  • 316 st/st wetted parts
  • Process temperatures up to +450°C
  • Pipe sizes from 3” to 36”
  • 4-20mA / HART / Profibus
  • LCD display of flow rate and total flow