User Manual

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7
4.Cautions
◆ Donotconnectthetestleadsbeforetogglingtoanothermeasurementorsourcingfunction.
◆ Donottouchthemetalpartsinthetestleadinterfacetoavoidintroducingerrors.
◆ Never apply more than 30V between any two electrical jacks (except when measurement is 30V range).
◆ Toavoidwaterpenetrationintothecalibrator,regularcleaningandmaintenanceisrecommended.
◆ Onlyusethepoweradapter
suppliedbyAdditeltorechargebattery.
◆ Intheeventofanabnormalityphenomenon,poweroffthedeviceandtak eoffthebattery.Thencontactthe
factoryfortroubleshooting.
◆ Donotdisassemblethecalibra t or.Anyproblemscausedbythatarebeyondourservicerange.