Maintenance and Testing
To perform a battery monitor test:
1.Press 
to display the user parameters.
2.Press 
or 
to scroll through parameters until the display shows “Battery monitor test.”
3.Press 
to start the battery monitor test. The display shows “Batt. operation time > xxx min.”
(“xxx” = the minutes of runtime remaining. This number will fluctuate during the test.)
4.When the test is complete, the display will show “Normal operation load power xx%” if the batteries are in acceptable condition. If the test has determined that the condition of the batteries is unacceptable, the unit will display either a “Battery monitor warning” or “Battery monitor alarm.” See the “Alarm Messages” section for a detailed description of these alarms.
6.3Battery Capacity Test
NOTICE!
If you are using UPS contacts for a communication link, take the necessary precautions so this test will not cause a premature shutdown. See your software documentation for more information.
The battery capacity test discharges the batteries to the “Low DC warning” level and displays the estimated runtime. This estimate is only correct for the unit’s condition at the time of the battery capacity test. If the load changes and you would like to display the estimated runtime, you must perform this test again. After a battery capacity test, the unit must charge the batteries for at least eight hours before full battery capacity and full runtime have been restored.
To perform a battery capacity test, follow these steps:
1.Press 
to display the user parameters.
2.Press 
or 
to scroll through the parameters until the display shows this: Battery capacity test: xxx
(“xxx” = the backup time from the last test). If the test has never been performed before or if the test has been aborted, the display will show “???.”
3.Press 
to abort the test or 
to continue. The display shows “Batt. operation time xxx min.”
4.If you wish to abort the test while it is in progress, follow these steps:
User Guide APC BC300 Series 40kW 208/450/480V UPS | 25 |