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environment, this product may cause radio interference, in which case
the user may be required to take additional measures.
Maintenance, service 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 (building wiring outlet), components inside the UPS
system are still connected to the battery and electrically live and
dangerous.
• Before carrying out any kind of service and/or maintenance,
disconnect the batteries and verify that no current is present and no
hazardous voltage exists in the terminals of high capability capacitor
such as BUS-capacitors.
• Only persons are adequately familiar with batteries and with the
required precautionary measures may replace batteries and supervise
operations. Unauthorized 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 in this
manual 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 with the same type and amperage in order
to avoid fire hazards.
• Do not dismantle the UPS system.
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