Analysis Conditions
In 21CFR11 environments, this section is applicable only to members of the Developer group; however, members of the Analyst group may find information in this section helpful. Parameter file information that is available to Analysts is created by a member in the Developer group using information in this section. |
File > Open > [.ANC File]
Or, click the Analysis Conditions tab when in Advanced option presentation.
Analysis conditions specify the parameters used to guide an analysis.
Field or Button | Description | ||
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Absolute pressure dosing [check box] |
Specifies pressure targets in mmHg, mbar, or kPa instead of relative pressure. If this option is selected, the Relative Pressure labels and entries change to Absolute Pressure in the selected pressure units. |
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Adsorptive [text box] | Select an Adsorptive Properties file from the list of defined gases to be used for analysis. After selection, click Edit to modify adsorptive properties. | ||
Analysis conditions [drop‑down box] |
Use to browse for an Analysis Conditions file that contains analysis condition parameters to be used in the analysis. | ||
Analysis Method [button] |
Use to enter equilibration time in seconds or enter the minimum equilibration time for scanning in minutes
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Free Space [button] |
Use to specify how free space is determined.
None. Select if free space will not be used. Previously measured. Select if free space has been previously measured. Recommended if measuring a series of samples with similar volumes. Measure. Select if the free space is to be measured before the analysis begins. Enter. Allows manual entry of free space. Calculate. Select to have the free-space calculated using the value entered for Volume Correction (entered on the Unit [n] > Unit Configuration window) and the non-ideality factor (entered on the Adsorptive Properties window). |
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p° and T [button] |
Use to select options for obtaining the saturation pressure (p°) and analysis bath temperature. Entered. Select to manually enter the p°. Most recent measured. Select to use the most recently measured saturation pressure. Measure p° for each point (models p and t only). Select if p° is to be measured for each point. Bath temperature. Calculates p° using the entered bath temperature. |
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Preparation [button] |
Use to enter analysis preparation details.
Evacuation rate. The maximum rate of change of pressure when evacuating the sample tube. Evacuation time. The length of time for preliminary evacuation |
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