Run Time Calibration of APC Smart-UPS 3000VA USB & Serial RM 2U 230V

[Anonymous user]

HI All,

I Have a APC Smart-UPS 3000VA USB & Serial RM 2U 230V UPS for my Servers. This is the first time i want to Calibrate the UPS. I would appreciate if anyone could provide me the steps to Calibrate the UPS batteries.

Message was edited by: kpasupuleti

[BillP]

Good day Kumar,

Battery calibration are done either via software/network management card or manual. If you do have PowerChute Business or a Network Management Card, both of them can perform the UPS battery calibration. Software/NMC calibration is recommended if your UPS is an SUA or later models.

If you want to perform a manual runtime calibration or your UPS is an SU or older models, the steps are listed below:

1. Battery must be at 100% capacity when the Runtime Calibration is initiated/started.
2. The UPS must have at least a 30% load on it during the calibration.
3. The load cannot fluctuate more than +/- 5% during the calibration.
4. The battery must be discharged to at least 25% capacity (it is best to allow the UPS to shut off due to a discharged battery).

In addition to the above conditions, any UPS monitoring/shutdown software should be stopped from running in the background, and the serial cable should be detached from the UPS. This is necessary in order to prevent the software from shutting down the server/UPS due to an on-battery or low-battery condition.

Note: Before beginning the calibration make sure the UPS has been online and charging for at leat 24 hours for just the UPS or 48 hours for a UPS with external batteries.

If you are experiencing a flashing battery bar graph scenario, please consult this [APC Knowledgebase|http://nam-en.apc.com/app/answers/detail/a_id/1497/kw/battery%20bar%20graph]

[Anonymous user]

Dear Jonathan,

Thanks a lot..for the instructions.

[BillP · Accepted solution]

You are welcome Kumar.