UPS Run Time Calibration

A UPS runtime calibration calculates the battery runtime available to support the current UPS load over time.

Choose the Schedule UPS Tests... option of the Diagnostics menu to displays a dialog box that enables you to schedule automatic calibrations.

Note:
A runtime calibration is lengthy, deeply discharges the UPS battery, and temporarily reduces runtime until the UPS battery recharges. Battery capacity must be at 100%. to begin a calibration.

In the UPS Run Time Calibration area of the "Schedule UPS Tests" dialog box, select from two radio buttons:

Button
Function
Off Turns off automatic calibration.
Monthly Schedules monthly runtime calibrations. Below Monthly, specify the day and time of the monthly calibration. Select the day in the drop-down list box, enter the hour in the second box, enter the minute in the third box, and select AM or PM. PowerChute plus performs the scheduled runtime calibration each month on the first occurrence of the day you select. For example, if you choose Monday, a runtime calibration starts on the first Monday of each month at the time you specify.

To ensure that the UPS has sufficient battery runtime to protect your system, APC recommends scheduling a runtime calibration once every month.