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Marking an Indicator Reading as Incorrect

Occasionally, incorrect readings for indicators are entered by mistake and processed. When these raise alarms, they are usually caught and identified as incorrect as part of the acknowledgment process. However, many incorrect readings are entered that do not raise alarms. Although incorrect, they are still within the normal range and thus go undetected. Typically, they are found later when analyzing the history of readings for an indicator. For example, when looking at a line plot of readings for an indicator, a particular reading stands out because it is significantly lower or higher than the trend.

Because these readings can skew results if they are used in calculations, you can mark such readings as incorrect. Readings that are flagged as incorrect are omitted from charts and are not included in the values of aggregate calculation inputs. However, any calculations that have already occurred are not corrected. Similarly, PM jobs that might have been triggered by the incorrect reading are unaffected.

If a failure record was created when the alarm was acknowledged, the failure is deleted.

A reading can be marked as incorrect at any time after it has been processed. Only numeric, calculated, cumulative, descriptive, and performance indicators can have readings marked as incorrect. Readings for rule-based indicators cannot be marked as incorrect.

If you mark an acknowledged alarm reading as incorrect and then wish to re-acknowledge the alarm, remove the incorrect reading flag. This returns the indicator to an alarm state. For more information, see Undoing an Incorrect Reading Flag.

You can mark a reading as being incorrect wherever you see the reading in a table of readings or in a chart. You can also open the Indicator Reading window and click Mark as Incorrect. This topic explains two ways to mark a reading as being incorrect. It includes instructions for undoing “mark as incorrect”

To Mark a Reading as Incorrect using the Reading window

1.	Open the Indicator Reading window.

2.	Select the General tab and Reading tabs.

3.	Click Mark as Incorrect.

A confirmation window appears where you can select a reason and provide comments. When you click OK, the window closes, Incorrect reading is selected, and the button label changes to Undo Mark as Incorrect.

If you wish to reverse your decision, click Undo Mark as Incorrect. If a failure record was canceled when you marked the reading as incorrect, the failure’s status changes to Open after you undo the flag.

To Mark a Reading as Incorrect from the Site Window

1.	Select the site’s Inspection Management view.

2.	Select the Readings tab. In the By Indicator tab, select the indicator.

3.	The Readings tab below the table shows the “Readings history” configuration.

4.	Right-click the incorrect reading and click Mark Reading as Incorrect. The system removes the reading from the list.

Tip: You can view all of the incorrect readings for this indicator. In the list of configurations, select the “Incorrect Readings” configuration. All readings marked as incorrect for the indicator are listed.

To remove the flag, right click the flagged reading and click Undo Mark as Incorrect Reading.