Carbon Potential - Honeywell UDC3500 Product Manual

Monitoring and Operating the Controller
should be configured to IN ALG 1 while PV Source in the Control 2 Set Up Group
should be configured to INPUT 2.
See Section 3.8 for configuration and other information.
Features
Direct calculation of carbon percentage with seven different manufacturers' probes:
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± 0.02 % accuracy
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No nomographs—no mistakes
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Probe temperature input type is selectable from complete input menu.
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Four different local setpoints—standard feature
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Duplex control with second set of PID constants for dilution air control
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Process factor adjustment capability
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Automatic sooting warning via flashing display and configurable alarm
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Carbon Potential Algorithms, PV Range: 0.0 to 2.0 % (0.1 to 1.4 % for specified
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accuracy)
Dewpoint Algorithm, PV Range: –50 °F to +100 °F (–45 °C to 38 °C)
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% Oxygen Algorithm, PV Range: 0 % to 40 %
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Second Control Loop can use the temperature input to control furnace temperature
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Carbon Potential

The percent Carbon Monoxide (CO) content of the enriching gas may be entered as a
fixed value or Input 3 on the controller may be used to measure CO content as a live
value provided by a separate sensor.
All calculations are performed by the Controller with Percent Carbon shown as the PV
display. The actual reading of each analog input is available for viewing on the lower
display.
The controller computes the atmosphere's actual carbon potential from these inputs and
compares the computed value with the desired setpoint. An on-off or PID control
algorithm determines the controller output necessary to keep the actual carbon potential
at the setpoint.
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Advanced Atmosphere Control Corporation (AACC)
Corning
Cambridge Instruments
Marathon Monitors
Furnace Control Corporation
MacDhui (Barber Colman)
Bricesco
UDC3500 Universal Digital Controller Product Manual 10/05