Re-bracket all points in a set

Follow this procedure to re-bracket the collection of points belonging to an alarm bracket set.

To re-bracket all points in a set

• On the Alarm Bracket Set Control dialog box, select Re-bracket.

Example

In the Alarm Bracket Summary window below, note the following:

• The Current Value for the "alarmbracket0" record ("87.00") is below the Reference Value, but within the positive and negative limits.

• The Current Value for the "alarmbracket1" record ("133.00") is above its Reference Value, but within the positive and negative limits.

  Bracket Set Before Re-Bracketing

  

After re-bracketing, note the change in the Current Value, Reference Value, and deviation limits of both almbracket records:

• The Current Values at the time of re-bracketing become the new Reference Values.

• The system updates the positive and negative deviation limits in response to the new Reference Values.

  In addition, the system refreshes the alarm state of the reference point.

  Bracket Set After Re-Bracketing