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the UPS system are still connected to the battery and are stillthe UPS system are still connected to the battery and are still
electrically live and dangerous.electrically live and dangerous.
★★ Before carrying Before carrying out out any any kind of kind of servicing and/or servicing and/or maintenance,maintenance,
disconnect the batteries and verify that no current is presentdisconnect the batteries and verify that no current is present
and no hazardous voltage exist in the terminals of highand no hazardous voltage exist in the terminals of high
capability capacitor such as BUS-capacitors.capability capacitor such as BUS-capacitors.
★★ Only Only persons are persons are adequately adequately familiar with familiar with batteries batteries and wand with theith the
required precautionary measures may replace batteries andrequired precautionary measures may replace batteries and
supervise operations. Unauthorised persons must be kept wellsupervise operations. Unauthorised persons must be kept well
away from the batteries.away from the batteries.
★★ Caution - Caution - risk of risk of electric shock. electric shock. The bThe battery attery circuicircuit t is not is not isolatedisolated
from the input voltage. Hazardous voltages may occur betweenfrom the input voltage. Hazardous voltages may occur between
the battery terminals and the ground. Before touching, pleasethe battery terminals and the ground. Before touching, please
verify that no voltage is present!verify that no voltage is present!
★★ Batteries Batteries may may cause cause electric electric shock shock and and have have a a highhigh
short-circuit current. Please take the precautionary measuresshort-circuit current. Please take the precautionary measures
specified below and any other measures necessary whenspecified below and any other measures necessary when
working with batteries:working with batteries:
－－ remove wristwatches, rings remove wristwatches, rings and other and other metal objectsmetal objects
－－ use only tools wuse only tools with insulated grips ith insulated grips and handles.and handles.
★★ When changing batteries, install the same number and sameWhen changing batteries, install the same number and same
type of batteries.type of batteries.
★★ Do not attempt to dispose of batteries by burning them. ThisDo not attempt to dispose of batteries by burning them. This
could cause battery explosion.could cause battery explosion.
★★ Do not opDo not open or en or destroy batteries. Escaping electrolyte candestroy batteries. Escaping electrolyte can
cause injury to the skin and eyes. It may be toxic.cause injury to the skin and eyes. It may be toxic.
★★ Please replace the fuse only by a fuse of the same type and ofPlease replace the fuse only by a fuse of the same type and of
the same amperage in order to avoid fire hazards.the same amperage in order to avoid fire hazards.
★★ Do not dismantle the UPS system.Do not dismantle the UPS system.
★★ Do not connect appliances or items of equipment which wouldDo not connect appliances or items of equipment which would
overload the UPS (e.g. laser printers, etc) to the UPS output.overload the UPS (e.g. laser printers, etc) to the UPS output.
