1.4 Operation
★
Do not disconnect the mains cable on the UPS system or the building wiring socket outlet (shockproof socket
outlet) during operations since this would 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 lived 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 Standby switch then disconnect the mains lead
★
Ensure that no fluids or other foreign objects can enter the UPS system.
★
The UPS operates with hazardous voltages. Only qualified maintenance personnel may carry out repairs
1.5 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 are adequately familiar with batteries and with the required precautionary measures may
replace 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.
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