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FB1200 Multi-Run Explosion-Proof Flow Computer for Natural Gas
The FB1200 flow computer measures and controls gas flow for up to two differential pressure or linear meter runs.
With a rugged housing and multiple I/O, communications, and power options, the FB1200 provides accurate and reliable flow measurement in the harshest conditions. Designed for simplified configuration and ease of use, the FB1200 is also highly configurable and supports multiple flow and fluid property calculations right out of the box. The flexible design provides exactly what is required for each application. The FB12000 can also be equipped with FBxWifi™ allowing you to configure the flow computer and retrieve site data more safely than before.


  • Increased measurement confidence, reduced measurement uncertainty
  • Industry leading differential and static pressure measurement including 5-year stability
  • High accuracy temperature measurement including curve matching via the Callendar-Van Dusen equation
  • Reduced need to re-calibrate resulting in less time spent on site
  • Simplified configuration and set-up with new FBxConnect™ tool
  • Standard firmware supports global calculations for orifice, cone, Venturi, nozzle, conditioning orifice, turbine, PD, Auto-Adjust and Coriolis
  • Global Hazardous Area Approvals - Class 1 Div 1 & 2, ATEX & IEC Ex d & Ex n
  • FBxWifi™ allows secure local wireless access from safe area
  • Ease of integration with support for Modbus, ROC, BSAP and DNP3 protocols
  • Enhanced security helps prevent unauthorized access
  • API 21.1 compliant