Emerson Process Management 3-9000-522 Manual Do Utilizador

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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. 
 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
Operator); from   average  calibration  runs                                                                                 
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 %)