S600+ Instruction Manual
C-20
Chromatographs
Revised July-2017
C.7.3 Handling Operator Commands
This section details how the module handles operator commands.
Select Keypad Mole
Percentage
Select the keypad set
only
if it is valid according to the checks outlined
in
Section C.4.2, Determining the Mole Percentage Set.
Otherwise,
leave the in-use set intact.
Select Chromat Mole
Percentage
The system uses the following logic to select a chromat mole
percentage
If there are no system alarms and the latest report is OK, then
Copy the latest mole % set to the in-use set
Else
If the Revert to Last Good switch is on then.
If the prevous report is OK then.
Copy the latest mole % set to the in-use set.
Copy the latest RD and CV to the in-use set.
Endif
Endif
Endif
C.8 Configuration Type: Download from Supervisory System
Use this configuration mode when a supervisory system either is
connected to a chromatograph or supports data entry of the mole
percentage set. The supervisory system should write to the keypad set
and its associated Accept command in the same way, for example, as
densitometer constants. In operation, it is identical to the Keypad Only
configuration type.
C.9 Normalisation, Additionals, and C+6 Handling
This section discusses how the module normalises data and handles
additionals and C6+ components.
Terminology
The following definitions are helpful in this explanation:
Term
Definition
Can
Normalised additionals adjusted component mole percentage
Cn
Normalised component mole percentage
Cnas
Normalised, additionals and splits adjusted component mole
percentage
Cu
Un-normalised component mole percentage
NF
Normalisation factor
Sa
Sum of additionals
Sc
Sum of components mole percentage
Splits
Ratios of C6 (or C7) to C10 to apply to C6+ (or C7+)
C.9.1 Normalisation
The system uses this calcuation for keypad or chromatograph mole
percentage sets:
NF = 100 / Sc
Summary of Contents for FloBoss S600+
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