FLIRTA72_TA74USERMANUALDocumentIdentifier:TA72_TA74en‐US_AC
5
CAUTIONS
CAUTIONSidentifyconditionsandactionsthatcouldcauseDAMAGEtothemeterorequipment
undertest.Donotexposethemetertoextremesintemperatureorhighhumidity.
SafetySymbolsthataretypicallymarkedonmetersandinstructions
Thissymbol,adjacenttoanothersymbol,indicatestheusermustrefertothe
manualforfurtherinformation.
DonotapplyorremoveclampfromHAZARDOUSLIVEconductors
Equipmentprotectedbydoubleorreinforcedinsulation
Batterysymbol
ConformstoEUdirectives
Donotdiscardthisproductinhouseholdtrash.
ACmeasurement
Earthground
PERIEC1010OVERVOLTAGEINSTALLATIONCATEGORY
OVERVOLTAGECATEGORYI
EquipmentofOVERVOLTAGECATEGORYIisequipmentforconnectiontocircuitsinwhichmeasuresaretakentolimitthe
transientover‐voltagestoanappropriatelowlevel.
Note–Examplesincludeprotectedelectroniccircuits.
OVERVOLTAGECATEGORYII
EquipmentofOVERVOLTAGECATEGORYIIisenergy‐consumingequipmenttobe
suppliedfromthefixedinstallation.
Note–Examplesincludehousehold,office,andlaboratoryappliances.
OVERVOLTAGECATEGORYIII
EquipmentofOVERVOLTAGECATEGORYIIIisequipmentinfixedinstallations.
Note–Examplesincludeswitchesinthefixedinstallationandsomeequipmentforindustrialusewithpermanent
connectiontothefixedinstallation.
OVERVOLTAGE
CATEGORYIV
EquipmentofOVERVOLTAGECATEGORYIVisforuseattheoriginoftheinstallation.
Note–Examplesincludeelectricitymetersandprimaryover‐currentprotectionequipment