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5. Maintenance and inspection
<After replacing the battery during operation...>
Press the beeper stop/test button for 0.5 sec. to perform a self-diagnostic test. Normal operation
resumes after the 10-second test. If the beeper is sounding, it will stop the first time the switch is
pressed. Press the switch again to start the test. If the battery replacement display and beeper were
activated before replacing the battery, the display and beeper stop after the test is complete, and
normal operation resumes.
<After replacing the battery when operation was stopped...>
Connect the AC input plug to a wall outlet (commercial power) and turn ON the power switch of the
UPS. When operation starts, the self-diagnostic test is automatically performed. Normal operation
resumes after the 10-second test.
5-2-2 Replacing the battery (BY75SW)
● Preparation
(1) Purchase a BXB75S spare battery pack (sold separately).
(2) If you normally position the UPS horizontally and place a heavy object such as a CRT on top of it, remove
the object until you finish replacing the battery.
● Replacing the battery (BY75SW)
(1) Open the front panel.
Loosen and remove the 2 screws. Detach the front panel.
Pull the front panel upward a little if the front
panel is hard to detach.
(Hold one connector in each hand and pull them apart.)
(1) Slide the front metal cover upward, and
(2) Pull it toward you to remove it.
(2) Disconnect the battery connector and remove the metal cover.
Battery replacement is complete.
Write the usage start date on the label on the top side. Also, by using the included UPS
monitoring software, possible to keep a record of usage start date by the software.
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