Viewing or Editing Gas Analysis Entries

Each Gas Analysis entry for the selected gas device Node and time period is shown in the control grid, and can be used as a vehicle for viewing or editing* gas analysis records. Changes made to gas analysis data are historized in the CygNet Measurement system when they are saved. There are recalculation implications of editing base condition values. See CygNet Measurement Data Calculation for more information.

Gas analysis data can be imported into FMS using the Gas Analysis CSV file import command. See Import File: Gas Analysis CSV for more information about this process.

You must have proper security authorization to edit gas analysis entries. See FMS Security (and DEVCFG security event) for information about configuring security access.

Viewing Gas Analysis Entries

Use the Gas analysis data view, available for selection on the control toolbar, to view gas analysis entries.

To View a Gas Analysis Entry

1. Set the session Node and time window options using the control Chooser and Options panes.
2. On the control toolbar, select Gas analysis from the Data view drop-down menu.
3. The device-specific Gas Analysis records will appear in the control grid.
4. To access the option to customize which columns are currently displayed in the grid, right-click on the header row and then click Field Chooser to display/hide the Field Chooser list, to select/remove columns for display. See Using the Field Chooser for more information.

Editing Gas Analysis Entries

Except as noted, existing gas analysis entries can be edited directly in the control grid, or through a series of property pages for a selected record entry.

To Edit a Gas Analysis Entry

1. To directly edit a single gas analysis item value in the grid, double-click an editable data cell.
• Type the new value directly into the cell selected.
• When focus is placed on another cell, the Data Source value will change to reflect the source of the newly edited data.
• Do not Save changes until you are done making all desired edits.
2. To edit values for a single gas analysis record row via the property pages, either double-click the row number of the gas analysis data row you wish to edit, or right-click in the data row to access the context menu and then click Edit, to display the device-specific Edit Gas Analysis Entry dialog box. The dialog box contains several tabbed pages to differentiate the types of data contained. Tabbed property pages include Quality, Composition, Liquid Content, Custom, and Sample Details. The effective date and time of the gas analysis entry currently being viewed appears after the title in the dialog box header for reference (7/1/2025 00:00:00 in the following illustration).

Edit Gas Analysis Entry

1. To edit properties for the selected entry in the Edit Gas Analysis Entry dialog box, change values as desired for applicable gas analysis properties on each property page.
• Edit values on the Quality page.
• Edit values on the Composition page.
• Edit values on the Liquid Content page.
• Edit values on the Custom page.
• Edit values on the Sample Details page.

Note: See FMS Configuration Data Items for more information about specific gas analysis configuration items shown on these property pages.

2. You can make multiple changes to one entry or to multiple entries. When performing multiple edits, click OK once all edits are complete.
3. Optionally click Record details to verify auditing information. Each property page contains a Record details button and navigation buttons (<<, >>) to allow quick access between gas analysis records in the currently specified time window. When you change the record being viewed, the selection in the Configuration control's grid will also be updated to reflect the record in the current view. See Viewing Record Details for more information.

3. Once values have been edited for all desired gas analysis records, Save the changes as described below.

Property Pages

Gas analysis entry property sheets contain several property pages, categorized by the type of data. See Gas Analysis Properties for information about each property page corresponding to your gas analysis record.

Saving Changes

When you Save changed records in the Configuration control, you access the Save Changes dialog box to generate a record of the change.

Multiple edits can be performed at one time, and will generate a single command log and audit history record when you save the edits with a single Save action. When saving edits to multiple records, either all edits will be saved successfully or, if there are errors, no edits will be saved. When you make edits that affect the calculation of historical records, you will be asked what recalculation behavior to apply for the change.

To Save Changes

1. Edit the desired values.
2. Once values have been entered or changed for all desired records, click Save to write the new values and historize the changes. The Save Changes dialog box will appear.

Save Changes

1. Select an Audit category from the drop-down menu, for auditing purposes. The Audit Category selections are listed as configured on the Administrative Options page, for the category type Data Change. See Configuring Audit Categories for more information about audit categories. See Auditing in CygNet Measurement for more information about the auditing process.
2. Optionally, type Comments into the text box to explain the change. Maximum character count is 140. Although comments are optional, the comment becomes part of the audit record and can be helpful to identify the context for the change when auditing or reviewing records later.
3. Click Save to save the record change(s), or click Cancel to abandon the change(s). If the record change does not affect the calculation of historical records, the Save action is complete.

3. If the record change could affect the calculation of historical records, the Select Recalculation Process dialog box will appear.

Select Recalculation Process

1. Click a radio button to select the appropriate recalculation process from the following options.
   • Recalculate flow - Select this process for most configuration item value changes. If user edits to gas analysis values pass validation, or if validation is skipped, this process will recalculate the energy, volume, and/or mass values, for any historical records affected by the current edits.
   • Recalculate energy only - Select this option to only recalculate energy values while preserving previous history edits. This process will not recalculate mass or volume values.
   • Recalculate VCF - Select this process to fix configuration value mismatches between FMS and the device. If user edits to gas analysis values pass validation, or if validation is skipped, this process will recalculate only the VCF value, for any historical records affected by the current edits.
   • None - Select this process to save your edits only. This process will not recalculate any historical records.
2. Click Save to save the record change(s) and apply the recalculation process selected, or click Cancel to abandon the change(s).