56Standard programsExample:Analysis of ammonium with barcode test LCK303 and recordingof the readings. According to the LCK303 ion interference table,nitrate concentrates > 50 mg/L will interfere with the analysis.The instrument displays a warning if the same sample ID has avalue > 50 mg/L for nitrate.1. Select Recall Data>Data analysis>Interference Check toactivate a check.5.4 Stored ProgramsOver 200 pre-programmed processes can be recalled via theStored Programs menu. Stored Programs do not include anybarcode tests.5.4.1 Select a saved test/method; entering user-specific basic data1. Press Stored Programs in the Main Menu to view analphabetical list of stored programs with program numbers.The "Stored Programs" list will appear.2. Highlight the required test.Note: Select the program by name or scroll through the list using thearrow keys. Highlight the program or press Select by No. to searchfor a specific program number. Press OK to confirm.3. Press Start to run the program. The respectivemeasurement window is displayed.Note: All corresponding data (wavelength, factors and constants) isalready preset.4. Follow the chemical procedural instructions. Furtherinformation is available on the website of the manufacturer.Note: To display the procedural instructions in the display, press theinfo icon. This option is not available for all tests.5.4.2 Stored programs options1. Press Stored Programs in the Main Menu. Select therequired process and press Start.2. Press Options to enter specific data. The followingdescribes the options Table 4.