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Resetting an Indicator’s Degradation Rate

You can reset the degradation information for an indicator. Typically, this is needed when equipment is replaced, for example, a pipe section or vessel wall. If the replaced equipment is measured by more than one indicator, each indicator must be reset.

When the reset occurs, the degradation starting date on the asset is updated to the date of the reset. APM then ignores degradation data captured before the new starting date. However, you can still view, analyze, and compare the readings collected before the reset.

When an indicator reading is processed, the set of degradation rates are recalculated:

•	Short-term rate – Difference between the values collected during the current and previous reading

•	Long-term rate – Change in values between the starting (or restarting) date and the reading’s collection date

•	Indicator design rate – Based on the new starting date

•	Asset design rate – Continues to use the information in the asset’s designed degradation allowance and expected yearly degradation rate as designed

•	Custom rates – Up to three custom rates are supported. However, you are required to update the custom logic to handle resets

When an indicator’s degradation is reset, if readings already exist with a later date than the reset starting date, the readings’ degradation rates are recalculated.

If necessary, you can delete an indicator degradation reset. The degradation rates for readings entered after the date on the reset are automatically recalculated.

Note: The degradation reset function is generally available in APM. To use the functionality, you must first enable feature 126. In the Enterprise window, select the Features view and the Enabled Features tab. Click Browse, select “Support ability to reset indicator degradation rate when piping replaced” and click OK. If APM is running as a smart client, click Refresh Enabled Features on the server. Then restart the client to use the functionality.

To Reset Degradation Rate

1.	Open the Indicator window, click the Tools menu and then Reset Degradation. The Indicator Degradation Rate Reset window displays the current indicator degradation rate and the current date as the new starting date. For example:

2.	When the reset is saved, the Degradation Resets tab is added to the Indicator window. For example:

You can double-click a reset to open its window.

In the Degradation Rate tab, you will find the Restarted Indicator Rate tab, as well as the Indicator Rate and Asset Design Rate tabs.

Note: When an indicator has been reset, the Change Design Info button is no longer available. You can perform another reset to change design information.

Degradation resets are also indicated on charts. For example:

You can view resets at the site level by selecting the Inspection Management view, the Indicators tab, and the Degradation Resets tab.