Emerson FB2200 Flow Computer Firmware

The firmware accepts gas density, base density, and

specific gravity from any of the following sources:

▪ Up to 2 gas chromatographs (GC)

▪ Fixed value

▪ Periodic download from SCADA

▪ An external signal, such as analog input

▪ Calculated based on gas composition

▪ For liquid meters, the flow meter signal can be

provided by a pulse input, an analog flowrate, or a

direct accumulation from the meter electronics.

The firmware includes the following flow rates and

totals for gas DP and gas linear meters:

▪ Uncorrected volume

▪ Corrected (standard) volume

▪ Mass

▪ Energy

▪ Integral Value (DP meter) or Pulse Totals (linear meter)

In addition to the normal totals, the firmware also

supports the following fault totals which can be

enabled for a gas meter. The conditions to trigger the

fault totals are user configurable:

▪ Uncorrected volume fault totals

▪ Corrected volume fault totals

▪ Mass fault totals

▪ Energy fault totals

The firmware includes the following flow rates and

totals for API 12.2 and API 20.1 (low water):

▪ Indicated Volume / Mass

▪ Gross Volume

▪ Gross Standard Volume

▪ Net Standard Volume

▪ Water Volume

▪ Mass

▪ Flow time

▪ Pulses

The firmware includes the following flow rates and

totals for API 20.1 (high water):

▪ Indicated volume / mass

▪ Gross Volume

▪ Oil (Unshrunk and Theoretical Production)

▪ Natural Gas Liquid

▪ Flashed Gas

▪ Water (Uncorrected and Corrected Volume)

▪ Flow Time

▪ Pulses

Note: The firmware can accept a water cut from an

on-line analyzer or from an off-line analyzer

corrected to metering conditions.

The firmware supports a fallback mode when a process

variable's value is questionable. The fallback options

can be one of the following:

▪ Use last good value

▪ Use a fixed fallback value