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Function
Selections or
Prompt
Range of Setting
Lower Display
Upper Display
ALG1 INB
INPUT 1
INPUT 2
OUTPUT
ALG1 INC
NONE
INPUT 1
INPUT 2
OUTPUT
PCT CO
0.020 to 0.350
(fractional percent
of CO)
-999 to 9999
ALG1 BIAS
floating (in
engineering units)
PCT H2
1.0 to 99.0 (% H 2 )
Math Algorithm Notes:
1. Calculation ranges for the Math Algorithms are set via CALC HI and CALC LO parameters and
are between –999. and 9999. The SP High and Low values (SP Range) are independent of
these settings and can be any value between –999. and 9999.
2. The CALC HI and CALC LO values determine the range limits for the SP High and Low values
for the Weighted Average, Summer, Hi Select and Low Select algorithms.
3. If the Ratio for Input 2 is set to 0.0, then a constant value may be used for the Input 2 value via
the Input 2 Bias setting. For this configuration, the Input 2 low range and the Sooting diagnostic
messages are disabled.
38
ALGORITHM 1, INPUT B SELECTION will represent one of the
available selections.
Input 1
Input 2
Output – Should not be used for Three Position Step Control
applications)
ALGORITHM 1, INPUT C SELECTION will represent one of the
available selections.
None
Input 1
Input 2
Output – Should not be used for Three Position Step Control
applications)
PERCENT CARBON is only applicable when Carbon Potential is
selected. Enter the value in percent carbon monoxide that is
applicable for the enriching gas used in fractional form.
FOR EXAMPLE:
Natural Gas = 20.0 % CO, then setting is 0.200
Propane Gas = 23.0 % CO, setting is 0.230
INPUT ALGORITHM 1 BIAS—Does not apply to selections:
FFWRD, FFWDMU, HISEL or LOSEL.
HYDROGEN CONTENT FOR DEWPOINT is only applicable when
Dewpoint is selected. Enter a value for the percentage of Hydrogen
content that is applicable.
UDC3200 Universal Digital Controller Operator Manual
Parameter Definition
04/08
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