As to external battery of long backup time UPS, the wiring
terminals of the external battery must be checked regularly and,
when necessary, should be cleaned.
If the battery backup time is found greatly shortened, or when the
UPS LCD displays “BATTERY FAIL”, please contact the distributor
to confirm whether the battery needs to be replaced. Before
replacement, please make sure that the specifications of the new
battery are correct.
Notice
1. Never short-circuit the battery terminals, which will result in fire.
2. Never open the battery, as the electrolyte is harmful to human
body. In the event of inadvertent contact of electrolyte, immediately
rinse it off and go to hospital for a check.
III. Keep Air Vent Unblocked
1. Regularly clean the system, especially the air inlet and air outlet.
Make sure the air flows freely inside the chassis. Use dust collector
for cleaning when necessary.
2. Check the air vents on the front, rear, and side panels, make sure
they are not blocked.
IV. UPS State Check
1. Check whether the UPS is faulty: is the fault indicator shining? Is
fault alarm being given?
2. Is the UPS operating in Bypass mode: in normal case, the UPS
operates in Normal mode; if it is operating in Bypass mode, please
40 Chapter 4 Maintenance
E1-20010916-C-1.0
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