If the UPS does not automatically return to normal operation after a few minutes, close all jobs as usual and switch off your loads (e.g. PC) before the battery is fully discharged. This lengthens the service life of the battery! Switch OFF the UPS by pressing the main switch .

During the discharge process as the battery capacity consistently drops, the LED BAT.MODE flashes, accompanied by an intermittent double acoustic signal (once every four seconds). When the battery undervoltage limit is reached (acoustic signal every second), the electronic of the UPS switches off the power supply for the loads.

Never store the unit in this condition! The discharged battery system should be recharged within a week.

If the LED BAT.MODE flashes every second, it is time shut down the system and all connected loads! Shut down the UPS as well using the main switch.

When the mains voltage comes back, the UPS must be

switched on again using the main switch (only applies if it was previously switched off manually), in order to recharge the battery and thus store sufficient battery capacity for any possible future mains failures.

The batteries will be charged automatically when connected to the mains, independently of the mode set. The charging time after longer discharge of the batteries depends especially of the number of connected external battery units.

The charging time up to 90% of the rate capacity for a standard UPS is about 3 hours.

5.5.3Unit Overload

If the unit is overloaded (load > 110 %), an intermittent signal is heard. The power supply to the connected loads is maintained, however the connected total load must be reduced immediately.

Non-observance of the "Unit overload" condition may cause the total loss of all UPS functions!

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