ABB AO2000 Series - Filter Parameterization

AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 163
Filter parameterization
Menu path
MENU → Configure → Component-Specific → Filter →
Select Component → ...
Range
0 to 60 seconds
Procedure
Parameter Explanation Action
Linear filter (Caldos25, Caldos27, Magnos27, Limas11 IR, Limas21 UV,
Limas21 HW):
T90
Low-pass time constant Set
Non-linear filter (Fidas24, Magnos206, Magnos28, Uras26):
T90-1
Low-pass time constant for
constant measured value
Set
T90-2
Low-pass time constant for
measured value changes
Set
Threshold
Threshold. T90-2 applies for overshoot Set
Non-linear filter
T90-2 should be adjusted T90-2 ≤ T90-1 for the non-linear filter.
The switching threshold (in %) is generally based on the largest measure-
ment range selected (reference measurement range).
Recommendation for
Fidas24: T90-1 = 20 s, T90-2 = 1 s, threshold = 0.001 %
Magnos206: T90-1 = 3 s, T90-2 = 0 s, threshold = 0.1 %
Magnos28: T90-1 = 3 s, T90-2 = 0 s, threshold = 0.1 %
Uras26: T90-1 = 5 s, T90-2 = 0 s, threshold = 0.6 %