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DATA COMPUTATIONS C-17
MON2000
JULY 2010 Multi-Level Calibration
C.4.3 Multi-Level Calibration
The properties of each gas component can be
viewed using the Component Data menu.
Included with the component properties in the
Component Data Table are four coefficients
labeled Multi-Level Calib 'a', 'b', 'c', and 'd' for
each component. If these parameters are all
zero, then linear calibration is used. See
Section C.3.1 for the response factor
calculations.
If any of these parameters have a value other
than zero, then multi-level, or polynomial
calibration is used for that component.
The response factors are then calculated as:
where
Equation C-22 Multi-Level Calibration
P peak size (Area or Height as selected by the
O p e r a t o r ) ; f r o m a v e r a g e c a l i b r a t i o n r u n s
Coefficients:
A,B,C, and D
Calculated Offline.
Entered after Multi-Level Calibration using
several calibration gases (typically seven gases)
1.Note: If the coefficient values are correct
values, the response factor will be close to
one.
ResponseFactor
aP
3
bP
2
cP d+++
CalibrationConcentration
----------------------------------------------------------------------
=
(mol %)