Sven Pro 1000 USB SV-013868 [26/28] Operation manual

ENG

Operation Manual

Pro

8. BATTERY MAINTENANCE

UPS series contains one or two maintenance-free sealed lead-acid batteries (depends on UPS

model). High humidity, too high or low temperature, frequent battery discharge reduce its

durability. If battery has not been operated for a long period of time, it also has negative impact on

its durability. Therefore, it is recommended to carry out the whole cycle of battery charging/

discharging at least once per three months.

Storage conditions

• The UPS should be stored closed in vertical position in a dry and cool place with fully charged

storage battery.

• Before placing the UPS in storage, charge it for 12 hours.

Warning! Do not operate the UPS in environment with operating temperature not corres-

ponding to value given in Technical Speciﬁcations.

9. TROUBLESHOOTING

Problem

The UPS is connected to the mains with

voltage nominal, though the device

shows no voltage in the mains and enters

oﬀ-line mode.

The UPS does not start.

When power supply drops, the UPS

immediately switches oﬀ.

Solution

There is over- or undervoltage in the mains. Switch oﬀ

the PC and the UPS. Switch them on again after

voltage becomes normal.

The fuse has tripped, battery is discharged. Switch

the fuse, charge the battery.

1. The battery is discharged. It is necessary to carry

out the whole cycle of battery charging.

2. The battery is out of order. It is necessary to

replace the battery.

3. Power requirements exceed the UPS capacity.

If none of the above methods can solve the problem, please seek professional advice at your

nearest service center. Never attempt to repair the product yourself.