Extech Instruments 382276 Spezifikationen PDF herunterladen (Seite 6)

382275/6-EU-EN v4.3 3/14

PowerupChecks

First,checktheratinglabelofthepowersupplyandmakesureitcomplieswiththeACmainsvoltage

(110Vor220V).Next,settheModeSwitchlocatedontherearofthepowersupplytotheNormal

Position.

Listenforthecoolingfanwhenswitchingonthepowersupply.Thepowersupplyperformsaseriesof

selftestchecksonstartupwhichincludestestingthecoolingfan. Thefanwillstopcompletelyaftera

fewsecondsafte rrunningathighspeedindicatingthatitisingoodorder.The



,

and

lights

switchONdisplayingvoltageand0.0current.Tocheckthecurrentlevel,turnthecontrolknobone

clickineitherdirection.Thecurrentdisplayreturnsto0.0afterafewseconds.

TheTablebelowillustratestheSelf‐Test sequence:

SelftestdisplayandSequence TestDescription

Softwareversion

Displaycheck



C.V.Indicatorcheck



C.C.Indicatorcheck

Rearindicatorcheck



C.V.recheck

Testcontinuing

Overvoltageprotectioncheck

Overloadprotectioncheck

Overtemperatureprotectioncheck

Fancheck

Outputoff(remotecontrolmode)

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Extech Instruments 382276 Spezifikationen Seite 6