User Manual

Battery Test

68P09255A57-2

Aug 2002

SC4812ET Optimization/ATP Manual Software Release R16.1.x.x

PRELIMINARY

2-12

Discharge Test

Perform the test procedure in Table 2-9 only when the battery current is

less than 5 A per string. Refer to Table 2-8 for the procedures to check

current levels.

Table 2-9: Battery Discharge Test

Step Action

1 Turn the battery test switch on the Meter Alarm Panel, ON (see Figure 2-3). The rectifier output

voltage and current should decrease by approximately 10% as the batteries assume the load. Alarms

for the Meter Alarm Panel may occur.

2 Measure the individual battery string current using the DC current probe. The battery discharge

current in each string should be approximately the same (within± 5 A).

3 Turn Battery Test Switch OFF.

CAUTION

Failure to turn OFF the Battery Test Switch before leaving the

site, will result in low battery capacity and reduce battery life.