BUCHI DuMaster D-480 - Manual (Page 181)

Operation Manual D-480 ©BÜCH Labortechnik AG
8 - Maintaining the instrument 181
 If deleting has not had the desired effect, you can undo it. To do so, select the deleted sample
and click the "Include/Exclude" button again. The sample is now included again.
 Once you have excluded all samples with significant deviations from the calibration curve, click
the "Next" button. The next calibration curve appears in the calibration view.
 Once you have optimized the last calibration curve and clicked the "Next" button, the
"Calibration coefficients" dialog is displayed.
 Check...
 ... the calibration coefficients "a" to "e".
Note:
For the lower calibration range it is important that coefficient "a" is 1x10
-3 ... 3x10 -2 or less.
Coefficient "a" corresponds to a calibrated blank value and should be as small as possible.
 ... the possible working range defined in "Min." and "Max.".
 Decide:
If...
 ... you accept the calibration coefficients: Click OK. The calibration coefficients are applied.
 ... you do not accept the calibration coefficients: Click Cancel. Calibration is aborted.