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1 IMPORTANT SAFETY WARNING continued
1 IMPORTANT SAFETY WARNING continued
1.4 Operation
• Do not disconnect the mains cable on the UPS system as this will cancel the protective earthing
of the UPS system and of all connected loads.
• The UPS system features its own, internal current source (batteries). The UPS output sockets or
output terminals block may be electrically live even if the UPS system is not connected to the
building wiring outlet.
• In order to fully disconnect the UPS system, first press the OFF/Enter button then disconnect
the mains.
• Prevent fluid or foreign objects from entering the UPS system
1.5 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.
• To avoid electrical shock, turn off the unit and unplug it form the AC power source before
servicing the battery
• 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!
• Caution: Do not dispose of batteries in a fire. The batteries may explode.
• Caution: Do not open or mutilate batteries. Released electrolyte is harmful to the skin and eyes.
It may be toxic.
• 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:
a) Remove watches, rings, or other metal objects.
b) Use tools with insulated handles.
c) Wear rubber gloves and boots.
d) Do not lay tools or metal parts on top of batteries.
e) Disconnect charging source and load prior to installing or maintaining the battery.
f) Remove battery grounds during installation and maintenance to reduce likelihood of shock.
Remove the connection from ground if any part of the battery is determined to be grounded.
When changing batteries, please only use approved PowerShield batteries.
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