Calibration

For proper detection of compounds required for gas properties calculations, it is necessary to calibrate the peaks.

• Create a new calibration or for example open the nga.cal calibration from the DEMO_NGA project in your Clarity installation directory.
• When adding new peaks to the calibration table, use the predefined compound names from the drop-down menu (① in the Fig "Calibration window with the drop-down menu") which contains all compound names available in the supported norms and in the Link Table. For more details see also chapter Specification. If you use different compound names, the gas calculations will not work properly.
• NGA Extension often uses multi-signal calibrations. It means, that the peaks can be identified on different signals. The calibration table including Compound Names, Response Times and Amounts is common for all signals. It is important that each peak is finally used in one signal only to prevent the Result Calculations from warnings. Check the checkbox in the first Used column of the calibration table to use the Compound Name in the defined signal only. You can change the signal in the Calibration - Set Signal menu.

Calibration window with the drop-down menu

For detailed information about the Calibration, see the chapter "Calibration". in the Reference Guide or see the chapter "Creating new calibration" in the Getting Started Guide.