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from the mains power supply (building wiring socket), components
inside the UPS are still connected to the battery which are
potentially dangerous.
★ Before carrying out any kind of service and/or maintenance,
disconnect the batteries. Verify that no current is present and no
hazardous voltage exists in the capacitor or BUS capacitor
terminals.
★ Batteries must be replaced only by qualified person.
★ 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. Verify that no voltage is present
before servicing!
★ Batteries have a high short-circuited current and pose a risk of
shock. Take all precautionary measures specified below and any
other measures necessary when working with batteries:
－ remove all jewellery, wristwatches, rings and other metal objects
－ use only tools with insulated grips and handles.
－ Wear rubber gloves and boots.
－ Do not lay tools or metal parts on top of batteries.
－ Disconnect the charging source prior to connecting or
disconnecting battery terminals.
★ When changing batteries, replace with the same quantity and the
same type of batteries.
★ Do not attempt to dispose of batteries by burning them. It could
cause explosion.
★ Do not open or destroy batteries. Effluent 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, except the qualified maintenance
person.
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