Spectroquant
®
Pharo 300 Operation
83
ba75703d07 04/2014
4.5.10 User calibration (standard adjustment)
Some methods for concentration measurement provide the option to opti-
mize the original calibration stored with the method by means of a user cali-
bration.
When creating a used-defined method you can also allow a user calibration
(see section 4.5.12).
A user calibration is only valid if the difference compared to the original cali-
bration is no more than 30%.
The absorbance measurement for a user calibration can be carried out as a
single or multiple determination. With multiple determination, the absorbance
is calculated as the median from the individual measured values.
When a method is called up for which a user calibration is possible, a query
appears whether or not the user calibration should be carried out.
When a method is called up for which a user calibration is required, measure-
ment is only possible with a valid user calibration.
The usage of the user calibration is documented with the measured value
and indicated in the measured value display with [Cal].
Validity
A user calibration is always stored for the method presently called up. A user calibra-
tion is only erased if
a new user calibration is carried out
the original calibration is selected for measurement
the user calibration is manually erased
the photometer is reset to the default condition.
To Next Page
Loading...