Fiberplex VIM-0808 Manuel d'utilisateur télécharger pdf (Page 4)

AmbientTemperature

UnitsandsystemsbyLightViperaregenerallydesignedforanambienttemperaturerange(i.e.temperatureoftheincomingair)of+5...+40

°C.Whenrackmountingtheunits,thefollowingfactsmustbeconsidered:

 Theadmissibleambienttemperaturerangeforoperationofthesemiconductorcomponentsis0°Cto+70°C

(commercialtemperaturerangeforoperation).

 Theairflowthroughtheinstallationmustprovidethattheoutgoingairisalwayscoolerthan70°C.

 Averageheatincreaseofthecoolingairshall

beabout20K,allowingforanadditionalmaximum10Kincreaseat

thehotcomponents.

 Inordertodissipate1kWwiththisadmissibleaverageheatincrease,anairflowof2.65m³/minisrequired.

Example:ArackdissipatingP=800Wrequiresanairflowof

0.8*2.65m³/minwhichcorrespondsto2.12

m³/min.

 Ifthecoolingfunctionoftheinstallationmustbemonitored(e.g.forfanfailureorilluminationwithspotlamps),

theoutgoingairtemperaturemustbemeasureddirectlyabovethemodulesatseveralplaceswithin

EarthingandPowerSupply

Earthingofunitswithmainssupply(classIequipment)isperformedviatheprotectiveearth(PE)conductorintegratedinthemainscable.

Unitswithbatteryoperation(<60V,classIIIequipment)mustbeearthedseparately.Earthingtheunitisoneofthemeasuresforprotection

againstelectricalshockhazard(dangerous

bodycurrents).Hazardousvoltagemaynotonlybecausedbydefectivepowersupplyinsulation,

butmayalsobeintroducedbytheconnectedaudioorcontrolcables.

Thisequipmentmayrequiretheuseofadifferentlinecord,attachmentplug,orboth,dependingontheavailablepowersourceat

installation.If

theattachmentplugneedstobechanged,referservicingtoqualifiedservicepersonnel

IfyourunitmainssupplyisprovidedviaaNeutrikPowerCon™connectorthefollowingprecautionsmustbefollowed:

 ThePowerConmustbeinstalledandfullyengagedbeforeACpowerisappliedtotheunit.

 TheunitmustbedisconnectedfromthemainssupplybeforedisengagingthePowerConconnector.

ClassIEquipment(MainsOperation)

Shouldtheequipmentbedeliveredwithoutamatchingmainscable,thelatterhastobepreparedbyatrainedpersonusingtheattached

femaleplug(IEC320/C13orIEC320/C19)withrespecttotheapplicableregulationsinyourcountry.

BeforeconnectingtheequipmenttotheACpoweroutlet,checkthatthelocalline

voltagematchestheequipmentrating(voltage,

frequency)withintheadmissibletolerance.Theequipmentfusesmustberatedinaccordancewiththespecificationsontheequipment.

Equipmentsuppliedwitha3‐poleapplianceinlet(protectionconformingtoclassIequipment)mustbeconnectedtoa3‐poleACpower

outletso

thattheequipmentcabinetisconnectedtotheprotectiveearth.

WARNING

Ifthegroundisdefeated,certainfaultconditionsintheunitorinthesystemtowhichitisconnectedcan

resultinfulllinevoltagebetweenchassisandearthground.Severeinjuryordeathcanthenresultifthe

chassisandearthgroundaretouchedsimultaneously.

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Fiberplex VIM-0808 Manuel d'utilisateur Page 4