117Expanded programs7. Place the analysis cell in the cell compartment.8. Close the cell compartment cover.9. Press Read.10. Remove the analysis cell.11. Close the cell compartment cover.12. Press Zero.13. Place the analysis cell in the cell compartment.14. Close the cell compartment cover.15. Press Read.16. Repeat this procedure until 5 comparison measurementshave been obtained.The result will be displayed.17. Compare the result with the analysis cell required values.18. Press Cancel to return to Optical Checks.6.8.4 AQA - Analytical Quality Assurance1. Press AQA in the System Checks menu to configure AQAmeasurement or AQA in the toolbar to the right of thedisplay, to carry out AQA measurement.The AQA menu in System Checks contains the program forchecking the analytical quality. Configuration is done here,for example the individual working method being controlled bystandard solutions or the cross-sensitivities of the analysesidentified by standard additon solutions, multiple determinationsand dilutions.As optional accessories for full individual control, standard andtop-up solutions are available (Section 9, page 137).
