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Donot connect appliancesoritemsofequipment whichwouldoverloadtheUPS system(e.g. laser
printers)totheUPS outletsocket.
Placecablesinsuchawaythat no one can stepon ortripoverthem.
Operation
Donotdisconnect the mainscableontheUPSsystemorthebuildingwiring socketoutlet (shockproof
socket outlet)during operationssincethiswouldcanceltheprotectiveearthing oftheUPS system
andof allconnected loads.
TheUPS systemfeaturesitsown, internalcurrent source(batteries). TheUPS output socketsmay
beelectricallyliveeveniftheUPS systemisnot connected tothebuildingwiring socketoutlet.
Inordertofullydisconnect theUPSsystem,firstpresstheStandbyswitchthendisconnect the
mainslead or,onthepermanentlyconnectedunit ,isolatetheincomingfeeder.
Ensurethatnofluidsorotherforeign objectscan enterthe UPSsystem.
Maintenance,servicingandfaults
TheUPS systemoperateswithhazardousvoltages.Repairsmaybecarried out onlybyqualified
maintenancepersonnel.
CAUTION -risk ofelectricshock. Evenaftertheunit isdisconnectedfromthemainspowersupply
(building wiringsocket outlet),componentsinsidetheUPS systemarestill connectedtothebat-
teryandarestillelectricallyliveanddangerous. Beforecarrying out anykindofservicingand/or
maintenance,disconnectthebatteriesand verifythat nocurrent ispresent.
Onlypersonsadequatelyfamiliarwithbatteriesandwiththe required precautionarymeasures
mayexchangebatteriesand superviseoperations.Unauthorisedpersonsmustbekeptwell away
fromthebatteries.
CAUTION -risk ofelectricshock. Thebatterycircuitisnot isolatedfromtheinputvoltage. Hazard-
ousvoltagesmayoccurbetweenthe batteryterminalsandthe ground.Beforetouching,please
verifythatno voltage ispresent!
Batteriesmaycauseelectricshockand haveahighshort-circuitcurrent. Pleasetakethe precau-
tionarymeasuresspecifiedbelowand anyothermeasuresnecessarywhenworkingwithbatteries:
-removewristwatches,ringsandothermetalobjects.
-useonlytoolswithinsulatedgripsandhandles.
Whenchanging batteries, installthesamenumberandsametypeofbatteries.
Donotattempttodisposeofbatteriesbyburningthem.Thiscouldcausebatteryexplosion.
Donotopenordestroybatteries. Escapingelectrolytecan causeinjurytotheskinandeyes. It
maybetoxic.
Pleasereplacethefuseonlybyafuseof the sametypeandofthesameamperage inorderto
avoidfirehazards.
Donot dismantletheUPS system.
2.IMPORTANTSAFETYINSTRUCTIONS