3
·
The UPS system features its own, internal current source (batteries). The UPS output
sockets may be electrically live even if the UPS system is not connected to the building
wiring socket outlet.
·
In order to fully disconnect the UPS system, first press the OFF-switch then disconnect the
mains lead.
·
Ensure that no fluids or other foreign objects can enter the UPS system.
Maintenance, servicing and faults
·
The UPS system operates with hazardous voltages. Repairs may be carried out only by
qualified maintenance personnel.
·
Caution
- risk of electric shock. Even after the unit is disconnected from the mains power
supply (building wiring socket outlet), components inside the UPS system are still connected
to the battery and are still electrically live and dangerous. Before carrying out any kind of
servicing and/or maintenance, disconnect the batteries and verify that no current is present
and no hazardous voltage exist in the terminals of high capability capacitor such as BUS-
capacitors.
·
Only persons adequately familiar with batteries and with the required precautionary
measures may exchange batteries and supervise operations. Unauthorised persons must be
kept well away from the batteries.
·
Caution
- risk of electric shock. The battery circuit is not isolated from the input voltage.
Hazardous voltages may occur between the battery terminals and the ground. Before
touching, please verify that no voltage is present!
·
Batteries may cause electric shock and have a high short-circuit current. Please take the
precautionary measures specified below and any other measures necessary when working
with batteries:
- remove wristwatches, rings and other metal objects
- use only tools with insulated grips and handles.
·
When changing batteries, install the same number and same type of batteries.
·
Do not attempt to dispose of batteries by burning them. This could cause battery explosion.
·
Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes.
It may be toxic.
·
Please replace the fuse only by a fuse of the same type and of the same amperage in order
to avoid fire hazards.
·
Do not dismantle the UPS system.
