AO2000
CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
229
Joint zero and span calibration
Settings should be made whether zero and span calibration will be carried
out jointly always or never or at every nth automatic calibration.
Example:
•
Single zero calibration: Always
•
Single span calibration: Never
•
Joint zero and span calibration: Every 7th
This setting effects with a cycle time of 1 day a zero calibration being carried
out every day and a span calibration being carried out once a week.
For the analyzer modules Caldos25, Caldos27, Magnos206, Magnos28 and
Magnos27 these parameters must be set up such that the zero calibration
always precedes span calibration.
Calibration method
The calibration method (see page 223) for automatic calibration needs to be
set for the selected sample component.
The zero and span calibration measurement ranges for common and sub-
stitute gas calibration are chosen in the
Manual Cal.
→
Calibration
method
parameter.
The "calibration method" parameter is not available in the analyzer modules
Limas11 IR, Limas21 UV, Limas21 HW and Uras26 since automatic calibration
is always run as common calibration.
Drift calculation
In
MENU
→
Configure
→
Calibration data
→
Drift calculation
,
it can be set if the relative drift between two calibrations is calculated only
for automatic calibration or for both automatic and manual calibration.
Only one relative drift value is saved, i.e. if an automatic calibration is con-
figured and active and a manual calibration is performed the relative drift is
calculated relative to the last automatic calibration and vice versa.
