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ST100A Mass Flow Meter

A high-performance thermal mass flow meter for demanding industrial gas applications requiring advanced outputs, diagnostics and flexibility.

Built for harsh process environments, including flare gas, fuel gas and complex industrial duties.

The FCI ST100A Thermal Mass Flow Meter is an advanced industrial thermal mass flow meter designed for accurate and reliable gas flow measurement in some of the world’s most demanding process environments.

Combining highly advanced thermal dispersion sensing technology with a powerful, fully programmable electronics platform, the ST100A delivers exceptional performance across a wide range of industrial gas applications including flare gas metering, combustion air monitoring, refinery gas measurement and hazardous process systems.

The ST100A is particularly well suited to harsh operating environments found within:

  • Offshore oil & gas facilities
  • Petrochemical plants
  • Refineries
  • Power generation systems
  • Industrial process plants
  • Hazardous area applications

Using direct thermal mass flow measurement, the ST100A measures gas flow without requiring additional pressure or temperature compensation, providing highly stable and repeatable performance even under changing process conditions.

Its advanced electronics platform features a fully programmable touchscreen interface and the ability to store multiple gas calibrations within a single device, allowing greater flexibility across varying process gases and operating conditions.

The ST100A is widely used in critical industrial applications where reliability, turndown performance and hazardous area compliance are essential.

 

Advanced Thermal Mass Flow Measurement

The ST100A combines feature-rich electronics with FCI’s proven thermal dispersion sensing technology to provide:

  • Direct gas mass flow measurement
  • Exceptional low-flow sensitivity
  • Wide turndown capability
  • Stable measurement across varying gas compositions
  • Reliable operation in difficult process environments

Its rugged industrial design makes it ideal for applications involving:

  • High temperatures
  • Mixed hydrocarbon gases
  • Hazardous process areas
  • Large industrial gas systems
  • Variable process conditions

 

Designed for Critical Industrial Applications

The ST100A is commonly specified for demanding industrial gas measurement applications including:

  • Flare gas metering
  • Combustion air flow measurement
  • Refinery fuel gas monitoring
  • Process gas measurement
  • Industrial emissions monitoring
  • Hazardous area gas flow applications

The meter is also fully compliant with ETS Phase II accuracy requirements for carbon trading and emissions reporting applications.

 

Key Features

  • Advanced thermal mass flow meter for industrial gases
  • Fully programmable touchscreen interface
  • Multiple gas calibrations stored within a single device
  • Direct mass flow measurement
  • No pressure or temperature compensation required
  • No moving parts for reduced maintenance
  • Exceptional low-flow sensitivity and stability
  • Designed for harsh industrial environments

 

Process & Performance Features

  • SIL1 certified
  • ATEX certified
  • Process temperatures up to +450°C
  • 1000:1 turndown ratio
  • 316 stainless steel or Hastelloy C wetted parts
  • Mixed hydrocarbon gas calibrations available
  • 4-20mA, HART, Profibus PA and Foundation Fieldbus H1 communications

Typical Applications

  • Offshore oil & gas platforms
  • Refinery flare systems
  • Petrochemical processing
  • Combustion air flow measurement
  • Hazardous area process systems
  • Industrial emissions monitoring
  • High temperature gas applications

 

Key Benefits

  • Reliable measurement in harsh industrial environments
  • Excellent low-flow sensitivity and wide turndown capability
  • Flexible multi-gas calibration capability
  • Suitable for hazardous area and SIL applications
  • Proven solution for flare gas and industrial process measurement
  • Advanced touchscreen programmability and diagnostics

 

View/Download Product Manual

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