Emerson Automation Solutions
Rosemount Analytical Model 6888
Flue Gas Oxygen Analyzer
FOUNDATION Field Device
The Model 6888 is the latest in a line of combustion flue gas analyzers
measuring the oxygen remaining in the flue gases that result from almost
any combustion process (boiler, furnace, etc.). Similar in both
application and technology to the oxygen sensor found in all automobiles,
these analyzers permit the control system to maintain the optimum fuel to
air ratio in order to achieve best efficiency, lowest NOx production, and
also the least amount of greenhouse gas emissions. The larger combustion
processes found in power plants, refineries, steel mills, pulp and paper
plants, and institutional and industrial boilers may require a suite of
analyzers with the greatest accuracy and stability in order to permit the
Distributed Control System (DCS) to optimize combustion. Most flue gas
oxygen measurements feed into an automatic control loop, so the greater
bandwidth of FOUNDATION Fieldbus communications ensures the timely
transmission of oxygen information.
Analyzers measure the composition of these flue gas process streams, and
tend to be more complex than transmitters measuring physical quantities
such as pressure, temperature or flow.
There are over 20 alarm conditions with this type of analyzer, so the
diagnostic advantages afforded by FF communications into the Instrument
Shop minimizes the number of trips a technician must make onto the hot
furnace to evaluate potential analyzer problems.
Manufacturer ID (hex):
Device Type ID (hex):
Physical Layer Profile:
111 - Standard-power signaling, bus-powered, Entity Model I.S.
113 - Standard-power signaling, bus-powered, non I.S.
511 - Low-power signaling, bus-powered, FISCO I.S.
Emerson Process Management
Registered Function Blocks:
1-RB2(e), 4-AI(e), 2-DI(s), 1-PID(e)
Alarms and Events
Function Block Linking
Multi-bit Alert Reporting
Common Software Download
DD/CFF Tester Version: